./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-more-mts.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-more-mts.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cc67bee348fb2ffff05c0616660a93fb872177c05d08813d910a29641aea282e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:52:40,074 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:52:40,143 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-12-02 17:52:40,148 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:52:40,148 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:52:40,173 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:52:40,173 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:52:40,174 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:52:40,175 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:52:40,175 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:52:40,176 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:52:40,176 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:52:40,177 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:52:40,177 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 17:52:40,178 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:52:40,178 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:52:40,179 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 17:52:40,179 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 17:52:40,180 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:52:40,180 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 17:52:40,181 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 17:52:40,182 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 17:52:40,182 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 17:52:40,183 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 17:52:40,183 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:52:40,184 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 17:52:40,184 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 17:52:40,184 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 17:52:40,185 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:52:40,185 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 17:52:40,186 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 17:52:40,186 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-12-02 17:52:40,186 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:52:40,186 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 17:52:40,187 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 17:52:40,187 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 17:52:40,187 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:52:40,187 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:52:40,188 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:52:40,188 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:52:40,188 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:52:40,188 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:52:40,189 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:52:40,189 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 17:52:40,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 17:52:40,189 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:52:40,189 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:52:40,189 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:52:40,190 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc67bee348fb2ffff05c0616660a93fb872177c05d08813d910a29641aea282e [2023-12-02 17:52:40,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:52:40,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:52:40,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:52:40,437 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:52:40,438 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:52:40,439 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/weaver/popl20-more-mts.wvr.c [2023-12-02 17:52:43,141 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:52:43,296 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:52:43,296 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/sv-benchmarks/c/weaver/popl20-more-mts.wvr.c [2023-12-02 17:52:43,305 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/data/f75753a1f/a9aa8f89df7a4d3585dfcdc81d0a0770/FLAG1ec11bd4f [2023-12-02 17:52:43,316 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/data/f75753a1f/a9aa8f89df7a4d3585dfcdc81d0a0770 [2023-12-02 17:52:43,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:52:43,319 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:52:43,320 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:52:43,321 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:52:43,326 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:52:43,327 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:52:43" (1/1) ... [2023-12-02 17:52:43,328 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1929da8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:43, skipping insertion in model container [2023-12-02 17:52:43,329 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:52:43" (1/1) ... [2023-12-02 17:52:43,354 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:52:43,522 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:52:43,533 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-12-02 17:52:43,533 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@55ad7158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:43, skipping insertion in model container [2023-12-02 17:52:43,534 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:52:43,534 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-12-02 17:52:43,535 INFO L158 Benchmark]: Toolchain (without parser) took 215.95ms. Allocated memory is still 155.2MB. Free memory was 100.1MB in the beginning and 89.9MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 17:52:43,536 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 94.4MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 17:52:43,537 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.74ms. Allocated memory is still 155.2MB. Free memory was 99.8MB in the beginning and 89.9MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 17:52:43,538 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 94.4MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 213.74ms. Allocated memory is still 155.2MB. Free memory was 99.8MB in the beginning and 89.9MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 101]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-more-mts.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cc67bee348fb2ffff05c0616660a93fb872177c05d08813d910a29641aea282e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:52:45,293 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:52:45,373 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-12-02 17:52:45,380 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:52:45,380 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:52:45,410 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:52:45,410 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:52:45,411 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:52:45,412 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:52:45,412 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:52:45,413 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:52:45,413 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:52:45,414 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:52:45,415 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:52:45,415 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:52:45,416 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:52:45,416 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 17:52:45,417 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 17:52:45,418 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:52:45,418 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 17:52:45,419 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 17:52:45,419 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 17:52:45,420 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:52:45,420 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 17:52:45,421 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 17:52:45,421 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-12-02 17:52:45,422 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:52:45,422 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 17:52:45,422 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 17:52:45,423 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 17:52:45,423 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 17:52:45,424 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 17:52:45,424 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:52:45,424 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:52:45,425 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 17:52:45,425 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:52:45,425 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:52:45,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:52:45,426 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:52:45,426 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:52:45,426 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 17:52:45,426 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 17:52:45,427 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:52:45,427 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:52:45,427 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:52:45,427 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc67bee348fb2ffff05c0616660a93fb872177c05d08813d910a29641aea282e [2023-12-02 17:52:45,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:52:45,742 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:52:45,744 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:52:45,745 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:52:45,745 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:52:45,747 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/weaver/popl20-more-mts.wvr.c [2023-12-02 17:52:48,494 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:52:48,722 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:52:48,723 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/sv-benchmarks/c/weaver/popl20-more-mts.wvr.c [2023-12-02 17:52:48,732 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/data/d8303670d/a8636e8fcb184a69a2c594e31712a5a1/FLAG3c9d340ea [2023-12-02 17:52:48,743 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/data/d8303670d/a8636e8fcb184a69a2c594e31712a5a1 [2023-12-02 17:52:48,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:52:48,747 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:52:48,748 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:52:48,748 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:52:48,752 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:52:48,753 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:52:48" (1/1) ... [2023-12-02 17:52:48,754 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d68a576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:48, skipping insertion in model container [2023-12-02 17:52:48,754 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:52:48" (1/1) ... [2023-12-02 17:52:48,777 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:52:48,948 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:52:48,962 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-02 17:52:48,966 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:52:48,990 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:52:48,996 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:52:49,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:52:49,035 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:52:49,035 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:52:49,041 INFO L206 MainTranslator]: Completed translation [2023-12-02 17:52:49,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:49 WrapperNode [2023-12-02 17:52:49,042 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:52:49,043 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 17:52:49,043 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 17:52:49,043 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 17:52:49,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:49" (1/1) ... [2023-12-02 17:52:49,062 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:49" (1/1) ... [2023-12-02 17:52:49,093 INFO L138 Inliner]: procedures = 27, calls = 47, calls flagged for inlining = 14, calls inlined = 20, statements flattened = 229 [2023-12-02 17:52:49,094 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 17:52:49,095 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 17:52:49,095 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 17:52:49,095 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 17:52:49,102 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:49" (1/1) ... [2023-12-02 17:52:49,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:49" (1/1) ... [2023-12-02 17:52:49,109 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:49" (1/1) ... [2023-12-02 17:52:49,109 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:49" (1/1) ... [2023-12-02 17:52:49,123 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:49" (1/1) ... [2023-12-02 17:52:49,128 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:49" (1/1) ... [2023-12-02 17:52:49,131 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:49" (1/1) ... [2023-12-02 17:52:49,134 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:49" (1/1) ... [2023-12-02 17:52:49,139 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 17:52:49,140 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 17:52:49,140 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 17:52:49,140 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 17:52:49,141 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:49" (1/1) ... [2023-12-02 17:52:49,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:52:49,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:52:49,167 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 17:52:49,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 17:52:49,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 17:52:49,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 17:52:49,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 17:52:49,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 17:52:49,218 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-02 17:52:49,218 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-02 17:52:49,218 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-02 17:52:49,218 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-02 17:52:49,218 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-12-02 17:52:49,219 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-12-02 17:52:49,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-02 17:52:49,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-02 17:52:49,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 17:52:49,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 17:52:49,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 17:52:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 17:52:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 17:52:49,222 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-02 17:52:49,337 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 17:52:49,338 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 17:52:49,945 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 17:52:50,409 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 17:52:50,409 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-02 17:52:50,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:52:50 BoogieIcfgContainer [2023-12-02 17:52:50,410 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 17:52:50,412 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 17:52:50,412 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 17:52:50,415 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 17:52:50,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:52:48" (1/3) ... [2023-12-02 17:52:50,416 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea12d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:52:50, skipping insertion in model container [2023-12-02 17:52:50,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:49" (2/3) ... [2023-12-02 17:52:50,417 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea12d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:52:50, skipping insertion in model container [2023-12-02 17:52:50,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:52:50" (3/3) ... [2023-12-02 17:52:50,418 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-mts.wvr.c [2023-12-02 17:52:50,433 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 17:52:50,434 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-12-02 17:52:50,434 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 17:52:50,509 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-12-02 17:52:50,533 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 82 places, 78 transitions, 177 flow [2023-12-02 17:52:50,888 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7989 states, 7315 states have (on average 4.174162679425837) internal successors, (30534), 7988 states have internal predecessors, (30534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:52:50,908 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 17:52:50,915 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@77433ee8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 17:52:50,915 INFO L358 AbstractCegarLoop]: Starting to check reachability of 47 error locations. [2023-12-02 17:52:50,948 INFO L276 IsEmpty]: Start isEmpty. Operand has 7989 states, 7315 states have (on average 4.174162679425837) internal successors, (30534), 7988 states have internal predecessors, (30534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:52:50,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-02 17:52:50,954 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:52:50,955 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-12-02 17:52:50,955 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2023-12-02 17:52:50,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:52:50,961 INFO L85 PathProgramCache]: Analyzing trace with hash 750401, now seen corresponding path program 1 times [2023-12-02 17:52:50,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:52:50,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [791607040] [2023-12-02 17:52:50,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:50,975 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:52:50,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:52:50,977 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:52:50,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-02 17:52:51,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:51,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 17:52:51,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:52:51,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 17:52:51,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:51,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-12-02 17:52:51,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:51,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-12-02 17:52:51,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:51,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-12-02 17:52:51,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:51,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-12-02 17:52:51,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:51,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-12-02 17:52:51,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:51,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 1 [2023-12-02 17:52:51,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:51,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-12-02 17:52:51,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:51,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-12-02 17:52:51,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:51,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-12-02 17:52:51,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:51,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-12-02 17:52:51,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:51,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-12-02 17:52:51,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:51,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-12-02 17:52:51,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:51,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-12-02 17:52:51,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:51,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-12-02 17:52:51,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:51,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-12-02 17:52:51,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:51,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-12-02 17:52:51,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:51,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-12-02 17:52:51,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:51,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-12-02 17:52:51,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:51,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-12-02 17:52:51,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:51,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-12-02 17:52:51,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:51,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-12-02 17:52:51,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:51,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-12-02 17:52:51,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:51,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-12-02 17:52:51,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:52:51,526 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:52:51,527 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:52:51,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [791607040] [2023-12-02 17:52:51,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [791607040] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:52:51,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:52:51,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 17:52:51,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080437070] [2023-12-02 17:52:51,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:52:51,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:52:51,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:52:51,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:52:51,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:52:51,584 INFO L87 Difference]: Start difference. First operand has 7989 states, 7315 states have (on average 4.174162679425837) internal successors, (30534), 7988 states have internal predecessors, (30534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:52:52,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:52:52,000 INFO L93 Difference]: Finished difference Result 5326 states and 20175 transitions. [2023-12-02 17:52:52,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:52:52,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-12-02 17:52:52,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:52:52,080 INFO L225 Difference]: With dead ends: 5326 [2023-12-02 17:52:52,080 INFO L226 Difference]: Without dead ends: 5326 [2023-12-02 17:52:52,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:52:52,085 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 2 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 17:52:52,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 52 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 17:52:52,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5326 states. [2023-12-02 17:52:52,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5326 to 5326. [2023-12-02 17:52:52,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5326 states, 5002 states have (on average 4.033386645341864) internal successors, (20175), 5325 states have internal predecessors, (20175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:52:52,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5326 states to 5326 states and 20175 transitions. [2023-12-02 17:52:52,448 INFO L78 Accepts]: Start accepts. Automaton has 5326 states and 20175 transitions. Word has length 3 [2023-12-02 17:52:52,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:52:52,449 INFO L495 AbstractCegarLoop]: Abstraction has 5326 states and 20175 transitions. [2023-12-02 17:52:52,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:52:52,450 INFO L276 IsEmpty]: Start isEmpty. Operand 5326 states and 20175 transitions. [2023-12-02 17:52:52,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-02 17:52:52,450 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:52:52,450 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-12-02 17:52:52,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-02 17:52:52,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:52:52,652 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2023-12-02 17:52:52,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:52:52,653 INFO L85 PathProgramCache]: Analyzing trace with hash 750402, now seen corresponding path program 1 times [2023-12-02 17:52:52,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:52:52,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1543394228] [2023-12-02 17:52:52,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:52,654 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:52:52,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:52:52,655 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:52:52,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-02 17:52:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:52,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 17:52:52,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:52:52,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-12-02 17:52:52,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:52,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:52,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:52,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:52:52,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:52,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:52,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:52,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:52:52,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:52,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:52,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:52,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:52:52,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:52,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:52,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:52,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:52:52,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:52,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:52,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:52,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:52:52,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:52,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:52,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:52,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:52:52,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:52,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:52,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:52,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:52:52,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:52,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:53,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:53,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:53,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:53,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:52:53,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:53,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:53,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:53,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:52:53,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:53,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:53,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:53,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:52:53,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:53,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:52:53,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:53,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:52:53,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:52:53,250 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:52:53,250 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:52:53,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1543394228] [2023-12-02 17:52:53,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1543394228] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:52:53,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:52:53,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 17:52:53,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435127622] [2023-12-02 17:52:53,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:52:53,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 17:52:53,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:52:53,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 17:52:53,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:52:53,253 INFO L87 Difference]: Start difference. First operand 5326 states and 20175 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:52:53,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:52:53,779 INFO L93 Difference]: Finished difference Result 5328 states and 20178 transitions. [2023-12-02 17:52:53,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 17:52:53,779 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-12-02 17:52:53,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:52:53,860 INFO L225 Difference]: With dead ends: 5328 [2023-12-02 17:52:53,860 INFO L226 Difference]: Without dead ends: 5328 [2023-12-02 17:52:53,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:52:53,861 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 1 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 17:52:53,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 71 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 17:52:53,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5328 states. [2023-12-02 17:52:54,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5328 to 5328. [2023-12-02 17:52:54,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5328 states, 5004 states have (on average 4.032374100719425) internal successors, (20178), 5327 states have internal predecessors, (20178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:52:54,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 20178 transitions. [2023-12-02 17:52:54,085 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 20178 transitions. Word has length 3 [2023-12-02 17:52:54,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:52:54,086 INFO L495 AbstractCegarLoop]: Abstraction has 5328 states and 20178 transitions. [2023-12-02 17:52:54,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:52:54,086 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 20178 transitions. [2023-12-02 17:52:54,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-02 17:52:54,086 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:52:54,087 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-12-02 17:52:54,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-02 17:52:54,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:52:54,290 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2023-12-02 17:52:54,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:52:54,291 INFO L85 PathProgramCache]: Analyzing trace with hash 750427, now seen corresponding path program 1 times [2023-12-02 17:52:54,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:52:54,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534014517] [2023-12-02 17:52:54,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:54,292 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:52:54,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:52:54,293 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:52:54,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-02 17:52:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:54,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 17:52:54,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:52:54,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:52:54,413 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:52:54,413 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:52:54,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534014517] [2023-12-02 17:52:54,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534014517] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:52:54,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:52:54,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 17:52:54,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556884960] [2023-12-02 17:52:54,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:52:54,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:52:54,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:52:54,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:52:54,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:52:54,416 INFO L87 Difference]: Start difference. First operand 5328 states and 20178 transitions. Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:52:54,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:52:54,759 INFO L93 Difference]: Finished difference Result 5328 states and 20177 transitions. [2023-12-02 17:52:54,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:52:54,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-12-02 17:52:54,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:52:54,819 INFO L225 Difference]: With dead ends: 5328 [2023-12-02 17:52:54,819 INFO L226 Difference]: Without dead ends: 5328 [2023-12-02 17:52:54,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:52:54,821 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 1 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 17:52:54,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 67 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 17:52:54,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5328 states. [2023-12-02 17:52:55,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5328 to 5328. [2023-12-02 17:52:55,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5328 states, 5004 states have (on average 4.0321742605915265) internal successors, (20177), 5327 states have internal predecessors, (20177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:52:55,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 20177 transitions. [2023-12-02 17:52:55,095 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 20177 transitions. Word has length 3 [2023-12-02 17:52:55,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:52:55,096 INFO L495 AbstractCegarLoop]: Abstraction has 5328 states and 20177 transitions. [2023-12-02 17:52:55,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:52:55,096 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 20177 transitions. [2023-12-02 17:52:55,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 17:52:55,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:52:55,096 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1] [2023-12-02 17:52:55,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-02 17:52:55,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:52:55,297 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2023-12-02 17:52:55,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:52:55,298 INFO L85 PathProgramCache]: Analyzing trace with hash 721160208, now seen corresponding path program 1 times [2023-12-02 17:52:55,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:52:55,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [404738788] [2023-12-02 17:52:55,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:55,298 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:52:55,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:52:55,299 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:52:55,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-02 17:52:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:55,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 17:52:55,371 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:52:55,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-12-02 17:52:55,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:55,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:55,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:55,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:52:55,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:55,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:55,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:55,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:52:55,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:55,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:55,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:55,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:52:55,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:55,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:55,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:55,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:52:55,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:55,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:55,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:55,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:52:55,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:55,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:55,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:55,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:52:55,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:55,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:55,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:55,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:52:55,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:55,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:52:55,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:55,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:52:55,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:55,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:55,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:55,700 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:52:55,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:55,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:55,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:55,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:55,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:55,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:52:55,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:55,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:52:55,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:55,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:55,909 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:52:55,909 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:52:56,281 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:52:56,281 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:52:56,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [404738788] [2023-12-02 17:52:56,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [404738788] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:52:56,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1503392951] [2023-12-02 17:52:56,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:56,282 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:52:56,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:52:56,283 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:52:56,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-02 17:52:56,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:56,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 17:52:56,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:52:56,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2023-12-02 17:52:56,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:56,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:52:56,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:56,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:56,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:56,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:52:56,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:56,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:52:56,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:56,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:56,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:56,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:56,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:56,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:52:56,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:56,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:52:56,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:56,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:56,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:56,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:56,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:56,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:52:56,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:56,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:52:56,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:56,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:56,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:56,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:52:56,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:56,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:56,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:56,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:56,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:56,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:52:56,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:56,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:52:56,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:56,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:52:56,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:56,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:56,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:56,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:52:56,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:56,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:52:56,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:56,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:56,921 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:52:56,921 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:52:57,028 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:52:57,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1503392951] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:52:57,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138409377] [2023-12-02 17:52:57,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:57,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:52:57,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:52:57,030 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:52:57,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 17:52:57,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:57,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 17:52:57,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:52:57,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2023-12-02 17:52:57,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:57,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:52:57,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:57,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:52:57,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:57,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:57,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:57,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:52:57,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:57,210 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:57,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:57,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:52:57,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:57,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:57,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:57,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:57,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:57,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:52:57,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:57,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:57,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:57,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:52:57,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:57,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:57,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:57,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:52:57,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:57,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:52:57,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:57,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:52:57,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:57,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:57,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:57,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:52:57,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:57,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:52:57,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:57,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:57,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:57,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:52:57,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:57,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:57,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:57,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:52:57,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:52:57,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:52:57,576 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:52:57,576 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:52:57,679 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:52:57,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138409377] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:52:57,679 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 17:52:57,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 3, 3] total 9 [2023-12-02 17:52:57,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454082454] [2023-12-02 17:52:57,680 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 17:52:57,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 17:52:57,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:52:57,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 17:52:57,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-12-02 17:52:57,681 INFO L87 Difference]: Start difference. First operand 5328 states and 20177 transitions. Second operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:52:58,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:52:58,573 INFO L93 Difference]: Finished difference Result 5334 states and 20186 transitions. [2023-12-02 17:52:58,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 17:52:58,575 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-12-02 17:52:58,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:52:58,604 INFO L225 Difference]: With dead ends: 5334 [2023-12-02 17:52:58,604 INFO L226 Difference]: Without dead ends: 5334 [2023-12-02 17:52:58,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2023-12-02 17:52:58,606 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 1 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-02 17:52:58,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 89 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-02 17:52:58,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5334 states. [2023-12-02 17:52:58,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5334 to 5334. [2023-12-02 17:52:58,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5334 states, 5010 states have (on average 4.029141716566866) internal successors, (20186), 5333 states have internal predecessors, (20186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:52:58,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5334 states to 5334 states and 20186 transitions. [2023-12-02 17:52:58,814 INFO L78 Accepts]: Start accepts. Automaton has 5334 states and 20186 transitions. Word has length 5 [2023-12-02 17:52:58,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:52:58,814 INFO L495 AbstractCegarLoop]: Abstraction has 5334 states and 20186 transitions. [2023-12-02 17:52:58,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:52:58,814 INFO L276 IsEmpty]: Start isEmpty. Operand 5334 states and 20186 transitions. [2023-12-02 17:52:58,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 17:52:58,815 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:52:58,815 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 17:52:58,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-02 17:52:59,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-02 17:52:59,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-02 17:52:59,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 17:52:59,416 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2023-12-02 17:52:59,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:52:59,416 INFO L85 PathProgramCache]: Analyzing trace with hash 721160233, now seen corresponding path program 1 times [2023-12-02 17:52:59,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:52:59,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [44100147] [2023-12-02 17:52:59,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:59,417 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:52:59,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:52:59,418 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:52:59,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-02 17:52:59,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:59,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 17:52:59,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:52:59,546 INFO L349 Elim1Store]: treesize reduction 103, result has 12.7 percent of original size [2023-12-02 17:52:59,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 40 treesize of output 40 [2023-12-02 17:52:59,599 INFO L349 Elim1Store]: treesize reduction 60, result has 20.0 percent of original size [2023-12-02 17:52:59,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 40 [2023-12-02 17:52:59,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:52:59,877 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:52:59,877 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:52:59,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [44100147] [2023-12-02 17:52:59,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [44100147] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:52:59,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:52:59,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 17:52:59,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58809791] [2023-12-02 17:52:59,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:52:59,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:52:59,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:52:59,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:52:59,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:52:59,879 INFO L87 Difference]: Start difference. First operand 5334 states and 20186 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:00,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:53:00,174 INFO L93 Difference]: Finished difference Result 4486 states and 16643 transitions. [2023-12-02 17:53:00,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:53:00,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-12-02 17:53:00,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:53:00,191 INFO L225 Difference]: With dead ends: 4486 [2023-12-02 17:53:00,191 INFO L226 Difference]: Without dead ends: 4486 [2023-12-02 17:53:00,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:53:00,192 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 61 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:53:00,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 17 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 17:53:00,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4486 states. [2023-12-02 17:53:00,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4486 to 4486. [2023-12-02 17:53:00,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4486 states, 4238 states have (on average 3.9270882491741386) internal successors, (16643), 4485 states have internal predecessors, (16643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:00,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4486 states to 4486 states and 16643 transitions. [2023-12-02 17:53:00,299 INFO L78 Accepts]: Start accepts. Automaton has 4486 states and 16643 transitions. Word has length 5 [2023-12-02 17:53:00,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:53:00,300 INFO L495 AbstractCegarLoop]: Abstraction has 4486 states and 16643 transitions. [2023-12-02 17:53:00,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:00,300 INFO L276 IsEmpty]: Start isEmpty. Operand 4486 states and 16643 transitions. [2023-12-02 17:53:00,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 17:53:00,300 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:53:00,301 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 17:53:00,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-02 17:53:00,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:53:00,501 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2023-12-02 17:53:00,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:53:00,502 INFO L85 PathProgramCache]: Analyzing trace with hash 721160234, now seen corresponding path program 1 times [2023-12-02 17:53:00,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:53:00,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [176867809] [2023-12-02 17:53:00,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:00,502 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:53:00,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:53:00,503 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:53:00,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-02 17:53:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:00,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 17:53:00,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:00,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:00,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:00,628 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 17:53:00,628 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 22 [2023-12-02 17:53:00,649 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2023-12-02 17:53:00,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 45 [2023-12-02 17:53:00,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:00,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:00,765 INFO L349 Elim1Store]: treesize reduction 24, result has 44.2 percent of original size [2023-12-02 17:53:00,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 26 [2023-12-02 17:53:00,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:00,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2023-12-02 17:53:00,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:00,886 INFO L349 Elim1Store]: treesize reduction 24, result has 44.2 percent of original size [2023-12-02 17:53:00,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 26 [2023-12-02 17:53:00,896 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-02 17:53:02,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:02,224 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:53:02,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:02,557 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:53:02,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [176867809] [2023-12-02 17:53:02,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [176867809] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:53:02,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [466178481] [2023-12-02 17:53:02,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:02,558 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:53:02,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:53:02,559 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:53:02,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-02 17:53:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:02,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 17:53:02,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:02,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:02,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:02,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:02,823 INFO L349 Elim1Store]: treesize reduction 42, result has 26.3 percent of original size [2023-12-02 17:53:02,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 20 [2023-12-02 17:53:02,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-02 17:53:03,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:53:03,006 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:53:03,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [466178481] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:53:03,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 17:53:03,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4, 4] total 9 [2023-12-02 17:53:03,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921387105] [2023-12-02 17:53:03,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:53:03,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:53:03,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:53:03,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:53:03,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-12-02 17:53:03,008 INFO L87 Difference]: Start difference. First operand 4486 states and 16643 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:03,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:53:03,242 INFO L93 Difference]: Finished difference Result 3638 states and 13100 transitions. [2023-12-02 17:53:03,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:53:03,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-12-02 17:53:03,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:53:03,257 INFO L225 Difference]: With dead ends: 3638 [2023-12-02 17:53:03,257 INFO L226 Difference]: Without dead ends: 3638 [2023-12-02 17:53:03,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-12-02 17:53:03,258 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 59 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:53:03,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 16 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 17:53:03,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3638 states. [2023-12-02 17:53:03,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3638 to 3638. [2023-12-02 17:53:03,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3638 states, 3466 states have (on average 3.7795729948066934) internal successors, (13100), 3637 states have internal predecessors, (13100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:03,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3638 states to 3638 states and 13100 transitions. [2023-12-02 17:53:03,344 INFO L78 Accepts]: Start accepts. Automaton has 3638 states and 13100 transitions. Word has length 5 [2023-12-02 17:53:03,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:53:03,344 INFO L495 AbstractCegarLoop]: Abstraction has 3638 states and 13100 transitions. [2023-12-02 17:53:03,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:03,344 INFO L276 IsEmpty]: Start isEmpty. Operand 3638 states and 13100 transitions. [2023-12-02 17:53:03,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 17:53:03,344 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:53:03,345 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:53:03,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-02 17:53:03,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-12-02 17:53:03,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 17:53:03,746 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2023-12-02 17:53:03,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:53:03,746 INFO L85 PathProgramCache]: Analyzing trace with hash 658857543, now seen corresponding path program 1 times [2023-12-02 17:53:03,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:53:03,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [936991830] [2023-12-02 17:53:03,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:03,747 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:53:03,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:53:03,747 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:53:03,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-02 17:53:03,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:03,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 17:53:03,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:03,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:03,846 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:53:03,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 22 [2023-12-02 17:53:03,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:03,884 INFO L349 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2023-12-02 17:53:03,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 22 [2023-12-02 17:53:03,902 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:53:03,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 22 [2023-12-02 17:53:03,925 INFO L349 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2023-12-02 17:53:03,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 22 [2023-12-02 17:53:03,943 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:53:03,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 22 [2023-12-02 17:53:03,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:03,969 INFO L349 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2023-12-02 17:53:03,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 22 [2023-12-02 17:53:03,987 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:53:03,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 22 [2023-12-02 17:53:04,012 INFO L349 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2023-12-02 17:53:04,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 22 [2023-12-02 17:53:04,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:53:04,236 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:53:04,236 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:53:04,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [936991830] [2023-12-02 17:53:04,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [936991830] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:53:04,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:53:04,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 17:53:04,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021441263] [2023-12-02 17:53:04,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:53:04,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:53:04,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:53:04,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:53:04,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:53:04,237 INFO L87 Difference]: Start difference. First operand 3638 states and 13100 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:04,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:53:04,483 INFO L93 Difference]: Finished difference Result 3550 states and 12839 transitions. [2023-12-02 17:53:04,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:53:04,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-12-02 17:53:04,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:53:04,495 INFO L225 Difference]: With dead ends: 3550 [2023-12-02 17:53:04,495 INFO L226 Difference]: Without dead ends: 3550 [2023-12-02 17:53:04,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:53:04,496 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 54 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:53:04,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 15 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 17:53:04,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3550 states. [2023-12-02 17:53:04,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3550 to 3550. [2023-12-02 17:53:04,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3550 states, 3398 states have (on average 3.7783990582695703) internal successors, (12839), 3549 states have internal predecessors, (12839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:04,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3550 states to 3550 states and 12839 transitions. [2023-12-02 17:53:04,592 INFO L78 Accepts]: Start accepts. Automaton has 3550 states and 12839 transitions. Word has length 8 [2023-12-02 17:53:04,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:53:04,592 INFO L495 AbstractCegarLoop]: Abstraction has 3550 states and 12839 transitions. [2023-12-02 17:53:04,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:04,592 INFO L276 IsEmpty]: Start isEmpty. Operand 3550 states and 12839 transitions. [2023-12-02 17:53:04,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 17:53:04,592 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:53:04,593 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:53:04,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-12-02 17:53:04,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:53:04,793 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2023-12-02 17:53:04,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:53:04,794 INFO L85 PathProgramCache]: Analyzing trace with hash 658857544, now seen corresponding path program 1 times [2023-12-02 17:53:04,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:53:04,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [587030541] [2023-12-02 17:53:04,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:04,794 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:53:04,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:53:04,795 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:53:04,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-02 17:53:04,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:04,876 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 17:53:04,877 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:04,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:04,915 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 17:53:04,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 17 [2023-12-02 17:53:04,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-02 17:53:04,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:04,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:04,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 13 [2023-12-02 17:53:04,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:04,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-12-02 17:53:04,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:04,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:04,987 INFO L349 Elim1Store]: treesize reduction 9, result has 35.7 percent of original size [2023-12-02 17:53:04,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 13 [2023-12-02 17:53:05,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:05,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:05,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 13 [2023-12-02 17:53:05,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:05,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:05,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:05,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2023-12-02 17:53:05,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:05,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:05,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-12-02 17:53:05,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:05,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:05,108 INFO L349 Elim1Store]: treesize reduction 9, result has 35.7 percent of original size [2023-12-02 17:53:05,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 13 [2023-12-02 17:53:05,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:05,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-02 17:53:05,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:05,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:05,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 13 [2023-12-02 17:53:05,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:05,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:05,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:05,182 INFO L349 Elim1Store]: treesize reduction 9, result has 35.7 percent of original size [2023-12-02 17:53:05,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 13 [2023-12-02 17:53:05,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:05,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-02 17:53:05,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:05,741 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:53:06,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:06,067 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:53:06,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [587030541] [2023-12-02 17:53:06,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [587030541] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:53:06,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1861306919] [2023-12-02 17:53:06,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:06,067 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:53:06,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:53:06,068 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:53:06,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-02 17:53:06,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:06,238 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 17:53:06,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:06,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:06,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-12-02 17:53:06,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:06,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:06,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-02 17:53:06,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:06,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-12-02 17:53:06,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:06,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:06,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-12-02 17:53:06,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-02 17:53:06,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:06,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-12-02 17:53:06,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:06,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-12-02 17:53:06,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:06,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:06,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-12-02 17:53:06,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:06,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:06,440 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-12-02 17:53:06,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:06,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:06,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-12-02 17:53:06,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:06,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-12-02 17:53:06,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:06,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:06,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 5 [2023-12-02 17:53:06,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:06,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-02 17:53:06,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:53:06,636 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:53:06,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1861306919] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:53:06,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 17:53:06,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4, 4] total 9 [2023-12-02 17:53:06,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26233233] [2023-12-02 17:53:06,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:53:06,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:53:06,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:53:06,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:53:06,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-12-02 17:53:06,638 INFO L87 Difference]: Start difference. First operand 3550 states and 12839 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:06,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:53:06,871 INFO L93 Difference]: Finished difference Result 3462 states and 12578 transitions. [2023-12-02 17:53:06,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:53:06,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-12-02 17:53:06,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:53:06,880 INFO L225 Difference]: With dead ends: 3462 [2023-12-02 17:53:06,880 INFO L226 Difference]: Without dead ends: 3462 [2023-12-02 17:53:06,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-12-02 17:53:06,881 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 52 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:53:06,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 14 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 17:53:06,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3462 states. [2023-12-02 17:53:06,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3462 to 3462. [2023-12-02 17:53:06,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3462 states, 3330 states have (on average 3.7771771771771774) internal successors, (12578), 3461 states have internal predecessors, (12578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:06,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3462 states to 3462 states and 12578 transitions. [2023-12-02 17:53:06,977 INFO L78 Accepts]: Start accepts. Automaton has 3462 states and 12578 transitions. Word has length 8 [2023-12-02 17:53:06,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:53:06,978 INFO L495 AbstractCegarLoop]: Abstraction has 3462 states and 12578 transitions. [2023-12-02 17:53:06,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:06,978 INFO L276 IsEmpty]: Start isEmpty. Operand 3462 states and 12578 transitions. [2023-12-02 17:53:06,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 17:53:06,978 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:53:06,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:53:06,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-12-02 17:53:07,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2023-12-02 17:53:07,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 17:53:07,379 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2023-12-02 17:53:07,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:53:07,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1050236188, now seen corresponding path program 1 times [2023-12-02 17:53:07,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:53:07,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [561014122] [2023-12-02 17:53:07,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:07,380 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:53:07,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:53:07,381 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:53:07,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-02 17:53:07,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:07,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 17:53:07,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:07,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 7 [2023-12-02 17:53:07,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:07,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-12-02 17:53:07,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:07,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-12-02 17:53:07,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:07,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-12-02 17:53:07,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:07,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-12-02 17:53:07,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:07,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-12-02 17:53:07,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:07,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-12-02 17:53:07,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:07,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-12-02 17:53:07,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:07,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-12-02 17:53:07,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:07,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-12-02 17:53:07,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:07,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-12-02 17:53:07,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:07,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-12-02 17:53:07,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:07,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-12-02 17:53:07,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:07,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-12-02 17:53:07,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:07,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-12-02 17:53:07,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:07,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-12-02 17:53:07,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:07,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-12-02 17:53:07,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:07,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-12-02 17:53:07,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:07,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-12-02 17:53:07,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:07,575 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-12-02 17:53:07,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:07,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 1 [2023-12-02 17:53:07,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:07,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-12-02 17:53:07,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:07,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-12-02 17:53:07,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:07,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-12-02 17:53:07,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:53:07,653 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:53:07,653 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:53:07,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [561014122] [2023-12-02 17:53:07,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [561014122] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:53:07,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:53:07,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 17:53:07,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848624967] [2023-12-02 17:53:07,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:53:07,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 17:53:07,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:53:07,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 17:53:07,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:53:07,654 INFO L87 Difference]: Start difference. First operand 3462 states and 12578 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:07,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:53:07,907 INFO L93 Difference]: Finished difference Result 2099 states and 7617 transitions. [2023-12-02 17:53:07,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 17:53:07,908 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-12-02 17:53:07,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:53:07,913 INFO L225 Difference]: With dead ends: 2099 [2023-12-02 17:53:07,913 INFO L226 Difference]: Without dead ends: 2099 [2023-12-02 17:53:07,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:53:07,914 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 46 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:53:07,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 20 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 17:53:07,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2099 states. [2023-12-02 17:53:07,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2099 to 2099. [2023-12-02 17:53:07,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2099 states, 2058 states have (on average 3.7011661807580176) internal successors, (7617), 2098 states have internal predecessors, (7617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:07,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2099 states to 2099 states and 7617 transitions. [2023-12-02 17:53:07,969 INFO L78 Accepts]: Start accepts. Automaton has 2099 states and 7617 transitions. Word has length 9 [2023-12-02 17:53:07,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:53:07,969 INFO L495 AbstractCegarLoop]: Abstraction has 2099 states and 7617 transitions. [2023-12-02 17:53:07,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:07,970 INFO L276 IsEmpty]: Start isEmpty. Operand 2099 states and 7617 transitions. [2023-12-02 17:53:07,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 17:53:07,970 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:53:07,970 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:53:07,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-12-02 17:53:08,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:53:08,171 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2023-12-02 17:53:08,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:53:08,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1050236187, now seen corresponding path program 1 times [2023-12-02 17:53:08,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:53:08,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [723400737] [2023-12-02 17:53:08,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:08,172 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:53:08,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:53:08,173 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:53:08,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-02 17:53:08,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:08,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 17:53:08,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:08,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:08,327 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:53:08,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2023-12-02 17:53:08,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:08,583 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:53:08,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [723400737] [2023-12-02 17:53:08,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [723400737] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:53:08,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [761094246] [2023-12-02 17:53:08,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:08,584 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:53:08,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:53:08,585 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:53:08,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-12-02 17:53:08,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:08,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 17:53:08,719 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:08,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-12-02 17:53:08,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:08,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:08,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:08,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:08,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:08,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:08,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:08,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:08,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:08,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:08,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:08,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:08,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:08,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:08,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:08,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:08,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:08,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:08,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:08,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:08,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:08,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:08,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:08,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:08,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:08,842 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:08,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:08,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:08,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:08,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:08,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:08,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:08,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:08,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:08,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:08,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:08,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:08,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:53:08,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:08,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:08,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:08,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:08,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:08,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:08,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:08,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:09,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:09,193 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:53:09,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:09,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [761094246] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:53:09,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890843826] [2023-12-02 17:53:09,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:09,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:53:09,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:53:09,652 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:53:09,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-02 17:53:09,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:09,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 17:53:09,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:09,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2023-12-02 17:53:09,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:09,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:09,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:09,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:09,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:09,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:09,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:09,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:09,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:09,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:09,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:09,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:53:09,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:09,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:09,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:09,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:09,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:09,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:09,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:09,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:09,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:09,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:09,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:09,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:09,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:09,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:09,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:09,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:09,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:09,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:09,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:09,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:09,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:09,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:09,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:09,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:09,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:09,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:09,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:09,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:09,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:09,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:10,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:10,006 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:10,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:10,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:10,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:10,345 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:53:10,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:10,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890843826] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 17:53:10,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2023-12-02 17:53:10,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4, 5, 5, 4] total 21 [2023-12-02 17:53:10,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105533909] [2023-12-02 17:53:10,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:53:10,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 17:53:10,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:53:10,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 17:53:10,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2023-12-02 17:53:10,569 INFO L87 Difference]: Start difference. First operand 2099 states and 7617 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:11,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:53:11,582 INFO L93 Difference]: Finished difference Result 2309 states and 8585 transitions. [2023-12-02 17:53:11,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 17:53:11,583 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-12-02 17:53:11,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:53:11,589 INFO L225 Difference]: With dead ends: 2309 [2023-12-02 17:53:11,589 INFO L226 Difference]: Without dead ends: 2309 [2023-12-02 17:53:11,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=107, Invalid=445, Unknown=0, NotChecked=0, Total=552 [2023-12-02 17:53:11,590 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 81 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-02 17:53:11,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 34 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-02 17:53:11,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2309 states. [2023-12-02 17:53:11,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2309 to 2309. [2023-12-02 17:53:11,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2309 states, 2280 states have (on average 3.7653508771929824) internal successors, (8585), 2308 states have internal predecessors, (8585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:11,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2309 states to 2309 states and 8585 transitions. [2023-12-02 17:53:11,648 INFO L78 Accepts]: Start accepts. Automaton has 2309 states and 8585 transitions. Word has length 9 [2023-12-02 17:53:11,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:53:11,649 INFO L495 AbstractCegarLoop]: Abstraction has 2309 states and 8585 transitions. [2023-12-02 17:53:11,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:11,649 INFO L276 IsEmpty]: Start isEmpty. Operand 2309 states and 8585 transitions. [2023-12-02 17:53:11,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 17:53:11,650 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:53:11,650 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 1, 1] [2023-12-02 17:53:11,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2023-12-02 17:53:11,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-12-02 17:53:12,052 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-12-02 17:53:12,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:53:12,251 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2023-12-02 17:53:12,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:53:12,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1569889926, now seen corresponding path program 2 times [2023-12-02 17:53:12,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:53:12,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [690494451] [2023-12-02 17:53:12,252 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 17:53:12,252 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:53:12,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:53:12,253 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:53:12,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-02 17:53:12,330 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 17:53:12,330 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:53:12,333 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 17:53:12,334 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:12,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2023-12-02 17:53:12,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:12,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:12,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:12,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:12,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:12,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:12,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:12,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:12,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:12,416 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:53:12,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:12,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:12,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:12,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:12,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:12,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:12,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:12,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:12,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:12,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:12,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:12,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:12,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:12,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:12,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:12,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:12,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:12,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:12,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:12,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:12,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:12,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:12,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:12,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:12,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:12,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:12,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:12,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:12,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:12,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:12,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:12,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:12,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:12,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:12,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:12,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:12,802 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:12,803 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:53:13,467 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:13,467 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:53:13,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [690494451] [2023-12-02 17:53:13,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [690494451] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:53:13,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [815179416] [2023-12-02 17:53:13,468 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 17:53:13,468 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:53:13,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:53:13,469 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:53:13,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-12-02 17:53:13,620 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 17:53:13,620 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:53:13,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 17:53:13,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:13,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2023-12-02 17:53:13,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:13,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:13,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:13,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:13,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:13,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:13,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:13,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:13,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:13,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:13,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:13,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:13,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:13,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:13,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:13,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:13,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:13,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:13,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:13,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:13,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:13,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:13,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:13,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:13,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:13,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:13,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:13,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:13,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:13,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:53:13,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:13,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:13,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:13,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:13,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:13,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:13,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:13,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:13,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:13,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:13,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:13,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:13,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:13,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:13,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:13,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:14,161 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:14,161 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:53:15,044 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:15,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [815179416] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:53:15,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849730528] [2023-12-02 17:53:15,044 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 17:53:15,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:53:15,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:53:15,046 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:53:15,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-02 17:53:15,147 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 17:53:15,148 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:53:15,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 17:53:15,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:15,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-12-02 17:53:15,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:15,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:15,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:15,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:15,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:15,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:15,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:15,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:15,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:15,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:15,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:15,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:15,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:15,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:15,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:15,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:15,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:15,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:15,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:15,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:15,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:15,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:15,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:15,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:15,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:15,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:15,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:15,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:15,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:15,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:15,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:15,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:15,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:15,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:15,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:15,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:53:15,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:15,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:15,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:15,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:15,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:15,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:15,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:15,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:15,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:15,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:15,577 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:15,577 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:53:15,868 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:15,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849730528] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:53:15,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 17:53:15,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 17 [2023-12-02 17:53:15,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075264368] [2023-12-02 17:53:15,869 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 17:53:15,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-02 17:53:15,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:53:15,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-02 17:53:15,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2023-12-02 17:53:15,870 INFO L87 Difference]: Start difference. First operand 2309 states and 8585 transitions. Second operand has 19 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 18 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:20,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:53:20,596 INFO L93 Difference]: Finished difference Result 2321 states and 8603 transitions. [2023-12-02 17:53:20,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-02 17:53:20,597 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 18 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-12-02 17:53:20,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:53:20,603 INFO L225 Difference]: With dead ends: 2321 [2023-12-02 17:53:20,603 INFO L226 Difference]: Without dead ends: 2321 [2023-12-02 17:53:20,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=318, Invalid=674, Unknown=0, NotChecked=0, Total=992 [2023-12-02 17:53:20,604 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-02 17:53:20,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 132 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-02 17:53:20,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2321 states. [2023-12-02 17:53:20,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2321 to 2321. [2023-12-02 17:53:20,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2321 states, 2292 states have (on average 3.7534904013961605) internal successors, (8603), 2320 states have internal predecessors, (8603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:20,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2321 states to 2321 states and 8603 transitions. [2023-12-02 17:53:20,650 INFO L78 Accepts]: Start accepts. Automaton has 2321 states and 8603 transitions. Word has length 11 [2023-12-02 17:53:20,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:53:20,650 INFO L495 AbstractCegarLoop]: Abstraction has 2321 states and 8603 transitions. [2023-12-02 17:53:20,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 18 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:20,650 INFO L276 IsEmpty]: Start isEmpty. Operand 2321 states and 8603 transitions. [2023-12-02 17:53:20,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 17:53:20,651 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:53:20,652 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:53:20,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2023-12-02 17:53:20,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-12-02 17:53:21,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-12-02 17:53:21,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:53:21,253 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2023-12-02 17:53:21,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:53:21,254 INFO L85 PathProgramCache]: Analyzing trace with hash 25289152, now seen corresponding path program 1 times [2023-12-02 17:53:21,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:53:21,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [69928735] [2023-12-02 17:53:21,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:21,254 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:53:21,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:53:21,255 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:53:21,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-02 17:53:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:21,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 17:53:21,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:21,370 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:53:21,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 15 [2023-12-02 17:53:21,387 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:53:21,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2023-12-02 17:53:21,403 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:53:21,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2023-12-02 17:53:21,423 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:53:21,423 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 15 [2023-12-02 17:53:21,437 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:53:21,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2023-12-02 17:53:21,449 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:53:21,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2023-12-02 17:53:21,478 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:53:21,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 15 [2023-12-02 17:53:21,505 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:53:21,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 15 [2023-12-02 17:53:21,527 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:53:21,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 15 [2023-12-02 17:53:21,544 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:53:21,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2023-12-02 17:53:21,568 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:53:21,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 15 [2023-12-02 17:53:21,586 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:53:21,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2023-12-02 17:53:21,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:53:21,749 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:53:21,749 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:53:21,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [69928735] [2023-12-02 17:53:21,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [69928735] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:53:21,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:53:21,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 17:53:21,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872866927] [2023-12-02 17:53:21,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:53:21,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:53:21,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:53:21,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:53:21,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:53:21,750 INFO L87 Difference]: Start difference. First operand 2321 states and 8603 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:21,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:53:21,935 INFO L93 Difference]: Finished difference Result 2225 states and 8293 transitions. [2023-12-02 17:53:21,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:53:21,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-12-02 17:53:21,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:53:21,941 INFO L225 Difference]: With dead ends: 2225 [2023-12-02 17:53:21,941 INFO L226 Difference]: Without dead ends: 2225 [2023-12-02 17:53:21,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:53:21,942 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 41 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:53:21,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 12 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 17:53:21,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2225 states. [2023-12-02 17:53:22,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2225 to 2225. [2023-12-02 17:53:22,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2225 states, 2204 states have (on average 3.7627041742286753) internal successors, (8293), 2224 states have internal predecessors, (8293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:22,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2225 states to 2225 states and 8293 transitions. [2023-12-02 17:53:22,016 INFO L78 Accepts]: Start accepts. Automaton has 2225 states and 8293 transitions. Word has length 11 [2023-12-02 17:53:22,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:53:22,017 INFO L495 AbstractCegarLoop]: Abstraction has 2225 states and 8293 transitions. [2023-12-02 17:53:22,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:22,017 INFO L276 IsEmpty]: Start isEmpty. Operand 2225 states and 8293 transitions. [2023-12-02 17:53:22,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 17:53:22,018 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:53:22,018 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:53:22,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2023-12-02 17:53:22,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:53:22,219 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2023-12-02 17:53:22,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:53:22,219 INFO L85 PathProgramCache]: Analyzing trace with hash 25289153, now seen corresponding path program 1 times [2023-12-02 17:53:22,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:53:22,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1458764465] [2023-12-02 17:53:22,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:22,220 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:53:22,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:53:22,221 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:53:22,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-02 17:53:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:22,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 17:53:22,323 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:22,358 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 17:53:22,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 17 [2023-12-02 17:53:22,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:22,388 INFO L349 Elim1Store]: treesize reduction 9, result has 35.7 percent of original size [2023-12-02 17:53:22,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 13 [2023-12-02 17:53:22,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:22,413 INFO L349 Elim1Store]: treesize reduction 9, result has 35.7 percent of original size [2023-12-02 17:53:22,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 13 [2023-12-02 17:53:22,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:22,440 INFO L349 Elim1Store]: treesize reduction 9, result has 35.7 percent of original size [2023-12-02 17:53:22,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 13 [2023-12-02 17:53:22,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:22,465 INFO L349 Elim1Store]: treesize reduction 9, result has 35.7 percent of original size [2023-12-02 17:53:22,465 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 13 [2023-12-02 17:53:22,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:22,503 INFO L349 Elim1Store]: treesize reduction 9, result has 35.7 percent of original size [2023-12-02 17:53:22,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 13 [2023-12-02 17:53:22,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:22,557 INFO L349 Elim1Store]: treesize reduction 9, result has 35.7 percent of original size [2023-12-02 17:53:22,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 13 [2023-12-02 17:53:22,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:22,597 INFO L349 Elim1Store]: treesize reduction 9, result has 35.7 percent of original size [2023-12-02 17:53:22,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 13 [2023-12-02 17:53:22,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:22,636 INFO L349 Elim1Store]: treesize reduction 9, result has 35.7 percent of original size [2023-12-02 17:53:22,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 13 [2023-12-02 17:53:22,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:22,677 INFO L349 Elim1Store]: treesize reduction 9, result has 35.7 percent of original size [2023-12-02 17:53:22,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 13 [2023-12-02 17:53:22,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:22,704 INFO L349 Elim1Store]: treesize reduction 9, result has 35.7 percent of original size [2023-12-02 17:53:22,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 13 [2023-12-02 17:53:22,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:22,732 INFO L349 Elim1Store]: treesize reduction 9, result has 35.7 percent of original size [2023-12-02 17:53:22,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 13 [2023-12-02 17:53:23,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:23,454 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:53:23,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:23,807 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:53:23,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1458764465] [2023-12-02 17:53:23,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1458764465] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:53:23,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1019105325] [2023-12-02 17:53:23,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:23,807 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:53:23,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:53:23,808 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:53:23,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-12-02 17:53:23,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:23,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 17:53:23,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:24,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:24,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-12-02 17:53:24,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:24,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-12-02 17:53:24,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:24,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-12-02 17:53:24,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:24,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-12-02 17:53:24,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:24,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-12-02 17:53:24,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:24,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-12-02 17:53:24,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:24,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 5 [2023-12-02 17:53:24,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:24,161 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-12-02 17:53:24,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:24,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-12-02 17:53:24,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:24,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-12-02 17:53:24,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:24,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-12-02 17:53:24,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:24,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-12-02 17:53:24,387 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:53:24,387 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:53:24,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1019105325] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:53:24,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 17:53:24,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4, 4] total 9 [2023-12-02 17:53:24,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912907158] [2023-12-02 17:53:24,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:53:24,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:53:24,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:53:24,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:53:24,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-12-02 17:53:24,389 INFO L87 Difference]: Start difference. First operand 2225 states and 8293 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:24,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:53:24,607 INFO L93 Difference]: Finished difference Result 2129 states and 7983 transitions. [2023-12-02 17:53:24,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:53:24,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-12-02 17:53:24,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:53:24,613 INFO L225 Difference]: With dead ends: 2129 [2023-12-02 17:53:24,613 INFO L226 Difference]: Without dead ends: 2129 [2023-12-02 17:53:24,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-12-02 17:53:24,614 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 39 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:53:24,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 8 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 17:53:24,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2129 states. [2023-12-02 17:53:24,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2129 to 2129. [2023-12-02 17:53:24,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2129 states, 2116 states have (on average 3.772684310018904) internal successors, (7983), 2128 states have internal predecessors, (7983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:24,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2129 states to 2129 states and 7983 transitions. [2023-12-02 17:53:24,665 INFO L78 Accepts]: Start accepts. Automaton has 2129 states and 7983 transitions. Word has length 11 [2023-12-02 17:53:24,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:53:24,666 INFO L495 AbstractCegarLoop]: Abstraction has 2129 states and 7983 transitions. [2023-12-02 17:53:24,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:24,666 INFO L276 IsEmpty]: Start isEmpty. Operand 2129 states and 7983 transitions. [2023-12-02 17:53:24,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 17:53:24,666 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:53:24,667 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:53:24,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-02 17:53:24,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2023-12-02 17:53:25,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 17:53:25,067 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2023-12-02 17:53:25,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:53:25,068 INFO L85 PathProgramCache]: Analyzing trace with hash 784009169, now seen corresponding path program 1 times [2023-12-02 17:53:25,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:53:25,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [885034834] [2023-12-02 17:53:25,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:25,069 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:53:25,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:53:25,070 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:53:25,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-02 17:53:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:25,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 17:53:25,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:25,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:25,225 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:53:25,423 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2023-12-02 17:53:25,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:25,488 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:53:25,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [885034834] [2023-12-02 17:53:25,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [885034834] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:53:25,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2072076016] [2023-12-02 17:53:25,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:25,489 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:53:25,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:53:25,490 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:53:25,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-12-02 17:53:25,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:25,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 17:53:25,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:25,858 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:25,859 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:53:26,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:26,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2072076016] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:53:26,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606036901] [2023-12-02 17:53:26,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:26,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:53:26,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:53:26,178 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:53:26,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-12-02 17:53:26,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:26,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 17:53:26,278 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:26,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2023-12-02 17:53:26,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:26,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:53:26,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:26,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:26,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:26,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:26,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:26,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:26,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:26,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:26,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:26,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:26,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:26,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:26,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:26,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:26,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:26,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:26,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:26,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:26,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:26,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:26,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:26,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:26,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:26,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:26,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:26,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:26,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:26,465 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:26,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:26,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:26,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:26,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:26,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:26,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:26,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:26,497 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:26,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:26,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:26,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:26,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:26,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:26,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:26,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:26,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:26,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:26,905 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:53:27,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:27,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606036901] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 17:53:27,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2023-12-02 17:53:27,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4, 6, 6, 4] total 24 [2023-12-02 17:53:27,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121366567] [2023-12-02 17:53:27,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:53:27,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 17:53:27,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:53:27,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 17:53:27,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2023-12-02 17:53:27,177 INFO L87 Difference]: Start difference. First operand 2129 states and 7983 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:28,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:53:28,386 INFO L93 Difference]: Finished difference Result 2357 states and 9057 transitions. [2023-12-02 17:53:28,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 17:53:28,387 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-12-02 17:53:28,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:53:28,393 INFO L225 Difference]: With dead ends: 2357 [2023-12-02 17:53:28,393 INFO L226 Difference]: Without dead ends: 2357 [2023-12-02 17:53:28,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=87, Invalid=563, Unknown=0, NotChecked=0, Total=650 [2023-12-02 17:53:28,394 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 69 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:53:28,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 39 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-02 17:53:28,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2357 states. [2023-12-02 17:53:28,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2357 to 2357. [2023-12-02 17:53:28,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2357 states, 2348 states have (on average 3.8573253833049406) internal successors, (9057), 2356 states have internal predecessors, (9057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:28,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2357 states to 2357 states and 9057 transitions. [2023-12-02 17:53:28,435 INFO L78 Accepts]: Start accepts. Automaton has 2357 states and 9057 transitions. Word has length 12 [2023-12-02 17:53:28,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:53:28,436 INFO L495 AbstractCegarLoop]: Abstraction has 2357 states and 9057 transitions. [2023-12-02 17:53:28,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:28,436 INFO L276 IsEmpty]: Start isEmpty. Operand 2357 states and 9057 transitions. [2023-12-02 17:53:28,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 17:53:28,436 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:53:28,437 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:53:28,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-12-02 17:53:28,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2023-12-02 17:53:28,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2023-12-02 17:53:29,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 17:53:29,037 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2023-12-02 17:53:29,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:53:29,038 INFO L85 PathProgramCache]: Analyzing trace with hash 135778413, now seen corresponding path program 1 times [2023-12-02 17:53:29,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:53:29,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1840152182] [2023-12-02 17:53:29,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:29,039 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:53:29,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:53:29,039 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:53:29,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-02 17:53:29,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:29,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 17:53:29,144 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:29,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2023-12-02 17:53:29,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:29,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:29,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:29,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:29,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:29,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:29,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:29,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:29,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:29,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:29,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:29,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:29,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:29,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:29,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:29,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:29,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:29,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:29,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:29,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:29,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:29,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:29,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:29,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:29,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:29,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:29,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:29,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:29,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:29,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:29,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:29,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:29,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:29,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:29,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:29,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:29,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:29,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:29,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:29,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:53:29,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:29,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:29,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:29,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:29,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:29,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:29,602 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:53:29,602 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:53:30,057 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:53:30,057 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:53:30,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1840152182] [2023-12-02 17:53:30,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1840152182] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:53:30,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1887483314] [2023-12-02 17:53:30,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:30,058 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:53:30,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:53:30,059 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:53:30,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-12-02 17:53:30,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:30,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 17:53:30,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:30,441 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:30,442 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:53:30,770 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:30,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1887483314] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:53:30,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377052190] [2023-12-02 17:53:30,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:30,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:53:30,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:53:30,772 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:53:30,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-12-02 17:53:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:30,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 17:53:30,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:30,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2023-12-02 17:53:30,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:30,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:30,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:30,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:30,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:30,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:30,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:30,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:30,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:30,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:30,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:30,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:30,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:30,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:30,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:30,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:30,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:30,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:30,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:30,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:30,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:30,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:31,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:31,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:31,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:31,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:31,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:31,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:31,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:31,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:31,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:31,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:31,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:31,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:31,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:31,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:31,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:31,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:31,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:31,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:31,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:31,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:53:31,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:31,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:31,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:31,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:31,413 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:53:31,413 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:53:31,626 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:53:31,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377052190] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:53:31,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 17:53:31,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 7, 7, 5, 5] total 26 [2023-12-02 17:53:31,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736387486] [2023-12-02 17:53:31,626 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 17:53:31,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-02 17:53:31,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:53:31,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-02 17:53:31,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=580, Unknown=0, NotChecked=0, Total=702 [2023-12-02 17:53:31,628 INFO L87 Difference]: Start difference. First operand 2357 states and 9057 transitions. Second operand has 27 states, 27 states have (on average 2.2222222222222223) internal successors, (60), 26 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:36,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:53:36,073 INFO L93 Difference]: Finished difference Result 7459 states and 29093 transitions. [2023-12-02 17:53:36,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-02 17:53:36,074 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.2222222222222223) internal successors, (60), 26 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-12-02 17:53:36,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:53:36,093 INFO L225 Difference]: With dead ends: 7459 [2023-12-02 17:53:36,094 INFO L226 Difference]: Without dead ends: 7459 [2023-12-02 17:53:36,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=263, Invalid=1219, Unknown=0, NotChecked=0, Total=1482 [2023-12-02 17:53:36,095 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 925 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 1412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-02 17:53:36,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 164 Invalid, 1412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1405 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-02 17:53:36,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7459 states. [2023-12-02 17:53:36,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7459 to 7045. [2023-12-02 17:53:36,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7045 states, 7036 states have (on average 3.964326321773735) internal successors, (27893), 7044 states have internal predecessors, (27893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:36,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7045 states to 7045 states and 27893 transitions. [2023-12-02 17:53:36,262 INFO L78 Accepts]: Start accepts. Automaton has 7045 states and 27893 transitions. Word has length 13 [2023-12-02 17:53:36,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:53:36,262 INFO L495 AbstractCegarLoop]: Abstraction has 7045 states and 27893 transitions. [2023-12-02 17:53:36,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.2222222222222223) internal successors, (60), 26 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:36,263 INFO L276 IsEmpty]: Start isEmpty. Operand 7045 states and 27893 transitions. [2023-12-02 17:53:36,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 17:53:36,265 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:53:36,265 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:53:36,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-12-02 17:53:36,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-02 17:53:36,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2023-12-02 17:53:36,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 17:53:36,869 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2023-12-02 17:53:36,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:53:36,870 INFO L85 PathProgramCache]: Analyzing trace with hash -945215790, now seen corresponding path program 1 times [2023-12-02 17:53:36,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:53:36,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [299095982] [2023-12-02 17:53:36,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:36,870 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:53:36,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:53:36,871 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:53:36,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-02 17:53:36,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:36,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 17:53:36,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:36,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2023-12-02 17:53:36,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:36,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:37,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:37,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:37,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:37,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:37,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:37,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:37,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:37,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:37,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:37,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:37,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:37,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:37,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:37,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:37,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:37,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:37,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:37,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:37,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:37,086 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:37,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:37,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:37,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:37,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:37,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:37,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:37,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:37,116 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:37,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:37,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:37,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:37,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:37,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:37,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:37,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:37,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:37,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:37,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:37,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:37,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:53:37,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:37,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:37,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:37,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:37,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:37,578 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:53:38,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:38,382 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:53:38,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [299095982] [2023-12-02 17:53:38,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [299095982] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:53:38,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [467078250] [2023-12-02 17:53:38,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:38,383 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:53:38,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:53:38,383 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:53:38,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-12-02 17:53:38,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:38,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 17:53:38,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:38,575 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2023-12-02 17:53:38,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:38,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:38,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:38,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:38,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:38,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:53:38,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:38,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:38,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:38,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:38,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:38,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:38,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:38,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:38,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:38,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:38,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:38,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:38,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:38,700 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:38,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:38,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:38,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:38,726 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:38,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:38,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:38,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:38,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:38,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:38,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:38,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:38,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:38,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:38,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:38,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:38,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:38,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:38,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:38,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:38,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:38,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:38,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:38,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:38,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:38,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:38,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:39,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:39,246 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:53:39,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:39,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [467078250] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:53:39,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348089665] [2023-12-02 17:53:39,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:39,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:53:39,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:53:39,868 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:53:39,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-12-02 17:53:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:39,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 17:53:39,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:39,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2023-12-02 17:53:40,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:40,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:40,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:40,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:40,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:40,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:40,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:40,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:40,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:40,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:40,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:40,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:40,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:40,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:40,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:40,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:40,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:40,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:40,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:40,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:40,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:40,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:53:40,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:40,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:40,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:40,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:40,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:40,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:40,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:40,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:40,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:40,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:40,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:40,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:40,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:40,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:40,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:40,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:40,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:40,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:40,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:40,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:40,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:40,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:40,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:40,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:40,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:40,438 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:53:40,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:40,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348089665] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:53:40,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 17:53:40,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 6, 6, 6, 6] total 17 [2023-12-02 17:53:40,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112716136] [2023-12-02 17:53:40,812 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 17:53:40,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-02 17:53:40,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:53:40,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-02 17:53:40,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2023-12-02 17:53:40,813 INFO L87 Difference]: Start difference. First operand 7045 states and 27893 transitions. Second operand has 19 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:44,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:53:44,843 INFO L93 Difference]: Finished difference Result 15918 states and 63781 transitions. [2023-12-02 17:53:44,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 17:53:44,844 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-12-02 17:53:44,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:53:44,895 INFO L225 Difference]: With dead ends: 15918 [2023-12-02 17:53:44,895 INFO L226 Difference]: Without dead ends: 15918 [2023-12-02 17:53:44,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=119, Invalid=433, Unknown=0, NotChecked=0, Total=552 [2023-12-02 17:53:44,896 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 335 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-02 17:53:44,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 98 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-02 17:53:44,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15918 states. [2023-12-02 17:53:45,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15918 to 11556. [2023-12-02 17:53:45,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11556 states, 11547 states have (on average 4.012817181952022) internal successors, (46336), 11555 states have internal predecessors, (46336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:45,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11556 states to 11556 states and 46336 transitions. [2023-12-02 17:53:45,270 INFO L78 Accepts]: Start accepts. Automaton has 11556 states and 46336 transitions. Word has length 15 [2023-12-02 17:53:45,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:53:45,270 INFO L495 AbstractCegarLoop]: Abstraction has 11556 states and 46336 transitions. [2023-12-02 17:53:45,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:45,270 INFO L276 IsEmpty]: Start isEmpty. Operand 11556 states and 46336 transitions. [2023-12-02 17:53:45,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 17:53:45,272 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:53:45,273 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:53:45,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2023-12-02 17:53:45,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2023-12-02 17:53:45,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-12-02 17:53:45,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:53:45,882 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2023-12-02 17:53:45,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:53:45,883 INFO L85 PathProgramCache]: Analyzing trace with hash -924747175, now seen corresponding path program 1 times [2023-12-02 17:53:45,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:53:45,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [969926071] [2023-12-02 17:53:45,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:45,883 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:53:45,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:53:45,884 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:53:45,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-02 17:53:45,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:45,987 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 17:53:45,988 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:45,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2023-12-02 17:53:46,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:46,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:46,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:46,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:46,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:46,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:46,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:46,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:46,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:46,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:46,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:46,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:46,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:46,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:46,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:46,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:46,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:46,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:46,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:46,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:46,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:46,083 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:46,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:46,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:46,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:46,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:46,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:46,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:46,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:46,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:46,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:46,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:46,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:46,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:46,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:46,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:46,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:46,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:53:46,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:46,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:46,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:46,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:46,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:46,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:46,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:46,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:46,608 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:53:46,608 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:53:47,141 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:53:47,141 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:53:47,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [969926071] [2023-12-02 17:53:47,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [969926071] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:53:47,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [241381125] [2023-12-02 17:53:47,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:47,141 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:53:47,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:53:47,142 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:53:47,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2023-12-02 17:53:47,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:47,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 17:53:47,302 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:47,528 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:53:47,529 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:53:47,884 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:53:47,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [241381125] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:53:47,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73184173] [2023-12-02 17:53:47,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:47,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:53:47,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:53:47,886 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:53:47,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-12-02 17:53:47,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:47,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 17:53:47,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:48,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2023-12-02 17:53:48,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:48,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:53:48,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:48,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:48,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:48,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:48,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:48,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:48,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:48,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:48,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:48,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:48,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:48,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:48,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:48,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:48,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:48,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:48,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:48,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:48,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:48,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:48,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:48,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:48,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:48,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:48,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:48,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:48,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:48,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:48,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:48,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:48,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:48,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:48,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:48,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:48,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:48,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:48,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:48,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:48,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:48,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:48,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:48,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:48,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:48,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:48,570 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:53:48,570 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:53:49,427 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:53:49,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73184173] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:53:49,427 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 17:53:49,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 6, 6, 5, 5] total 27 [2023-12-02 17:53:49,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787409348] [2023-12-02 17:53:49,428 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 17:53:49,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 17:53:49,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:53:49,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 17:53:49,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=638, Unknown=0, NotChecked=0, Total=756 [2023-12-02 17:53:49,429 INFO L87 Difference]: Start difference. First operand 11556 states and 46336 transitions. Second operand has 28 states, 28 states have (on average 2.857142857142857) internal successors, (80), 27 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:57,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:53:57,324 INFO L93 Difference]: Finished difference Result 23415 states and 95953 transitions. [2023-12-02 17:53:57,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-02 17:53:57,326 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.857142857142857) internal successors, (80), 27 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-12-02 17:53:57,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:53:57,411 INFO L225 Difference]: With dead ends: 23415 [2023-12-02 17:53:57,411 INFO L226 Difference]: Without dead ends: 23415 [2023-12-02 17:53:57,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=273, Invalid=1367, Unknown=0, NotChecked=0, Total=1640 [2023-12-02 17:53:57,412 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 825 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 1762 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 1772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:53:57,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 233 Invalid, 1772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1762 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-12-02 17:53:57,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23415 states. [2023-12-02 17:53:57,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23415 to 22467. [2023-12-02 17:53:58,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22467 states, 22458 states have (on average 4.154377059399769) internal successors, (93299), 22466 states have internal predecessors, (93299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:58,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22467 states to 22467 states and 93299 transitions. [2023-12-02 17:53:58,093 INFO L78 Accepts]: Start accepts. Automaton has 22467 states and 93299 transitions. Word has length 16 [2023-12-02 17:53:58,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:53:58,094 INFO L495 AbstractCegarLoop]: Abstraction has 22467 states and 93299 transitions. [2023-12-02 17:53:58,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.857142857142857) internal successors, (80), 27 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:53:58,094 INFO L276 IsEmpty]: Start isEmpty. Operand 22467 states and 93299 transitions. [2023-12-02 17:53:58,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-02 17:53:58,097 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:53:58,097 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:53:58,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2023-12-02 17:53:58,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2023-12-02 17:53:58,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2023-12-02 17:53:58,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 17:53:58,698 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2023-12-02 17:53:58,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:53:58,698 INFO L85 PathProgramCache]: Analyzing trace with hash 740325570, now seen corresponding path program 1 times [2023-12-02 17:53:58,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:53:58,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [600079775] [2023-12-02 17:53:58,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:53:58,699 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:53:58,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:53:58,699 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:53:58,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2023-12-02 17:53:58,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:53:58,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 17:53:58,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:53:58,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2023-12-02 17:53:58,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:58,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:58,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:58,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:58,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:58,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:58,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:58,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:58,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:58,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:58,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:58,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:58,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:58,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:58,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:58,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:58,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:58,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:58,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:58,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:58,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:58,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:58,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:58,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:58,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:58,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:59,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:59,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:53:59,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:59,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:59,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:59,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:59,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:59,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:59,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:59,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:59,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:59,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:59,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:59,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:53:59,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:59,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:59,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:59,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:53:59,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:53:59,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:53:59,746 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:53:59,746 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:54:01,716 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:54:01,717 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:54:01,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [600079775] [2023-12-02 17:54:01,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [600079775] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:54:01,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1383326523] [2023-12-02 17:54:01,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:54:01,717 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:54:01,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:54:01,718 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:54:01,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2023-12-02 17:54:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:54:01,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 17:54:02,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:54:02,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-12-02 17:54:02,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:02,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:02,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:02,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:54:02,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:02,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:02,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:02,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:54:02,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:02,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:02,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:02,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:02,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:02,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:54:02,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:02,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:54:02,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:02,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:02,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:02,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:02,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:02,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:54:02,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:02,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:02,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:02,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:54:02,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:02,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:54:02,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:02,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:02,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:02,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:02,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:02,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:54:02,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:02,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:54:02,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:02,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:02,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:02,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:02,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:02,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:54:02,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:02,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:54:02,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:02,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:54:03,117 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:54:03,118 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:54:05,896 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:54:05,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1383326523] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:54:05,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748521652] [2023-12-02 17:54:05,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:54:05,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:54:05,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:54:05,897 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:54:05,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-12-02 17:54:06,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:54:06,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 17:54:06,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:54:06,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2023-12-02 17:54:06,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:06,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:54:06,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:06,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:54:06,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:06,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:06,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:06,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:54:06,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:06,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:06,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:06,116 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:06,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:06,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:54:06,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:06,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:06,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:06,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:54:06,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:06,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:54:06,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:06,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:06,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:06,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:06,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:06,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:54:06,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:06,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:54:06,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:06,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:06,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:06,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:54:06,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:06,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:06,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:06,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:06,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:06,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:54:06,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:06,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:54:06,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:06,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:06,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:06,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:54:06,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:06,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:54:06,747 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:54:06,747 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:54:07,703 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:54:07,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748521652] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:54:07,703 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 17:54:07,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 9, 10, 8, 9] total 26 [2023-12-02 17:54:07,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032652267] [2023-12-02 17:54:07,704 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 17:54:07,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 17:54:07,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:54:07,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 17:54:07,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=616, Unknown=0, NotChecked=0, Total=756 [2023-12-02 17:54:07,705 INFO L87 Difference]: Start difference. First operand 22467 states and 93299 transitions. Second operand has 28 states, 27 states have (on average 2.4444444444444446) internal successors, (66), 27 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:54:31,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:54:31,950 INFO L93 Difference]: Finished difference Result 65503 states and 276288 transitions. [2023-12-02 17:54:31,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-02 17:54:31,953 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 2.4444444444444446) internal successors, (66), 27 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-12-02 17:54:31,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:54:32,380 INFO L225 Difference]: With dead ends: 65503 [2023-12-02 17:54:32,393 INFO L226 Difference]: Without dead ends: 65503 [2023-12-02 17:54:32,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 86 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=364, Invalid=1528, Unknown=0, NotChecked=0, Total=1892 [2023-12-02 17:54:32,394 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 813 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 2097 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 2117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2023-12-02 17:54:32,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 315 Invalid, 2117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2097 Invalid, 0 Unknown, 0 Unchecked, 16.5s Time] [2023-12-02 17:54:32,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65503 states. [2023-12-02 17:54:33,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65503 to 47836. [2023-12-02 17:54:33,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47836 states, 47827 states have (on average 4.301503334936333) internal successors, (205728), 47835 states have internal predecessors, (205728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:54:34,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47836 states to 47836 states and 205728 transitions. [2023-12-02 17:54:34,079 INFO L78 Accepts]: Start accepts. Automaton has 47836 states and 205728 transitions. Word has length 20 [2023-12-02 17:54:34,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:54:34,080 INFO L495 AbstractCegarLoop]: Abstraction has 47836 states and 205728 transitions. [2023-12-02 17:54:34,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 2.4444444444444446) internal successors, (66), 27 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:54:34,080 INFO L276 IsEmpty]: Start isEmpty. Operand 47836 states and 205728 transitions. [2023-12-02 17:54:34,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 17:54:34,087 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:54:34,087 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:54:34,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2023-12-02 17:54:34,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2023-12-02 17:54:34,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-12-02 17:54:34,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:54:34,688 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2023-12-02 17:54:34,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:54:34,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1900985412, now seen corresponding path program 2 times [2023-12-02 17:54:34,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:54:34,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1144737243] [2023-12-02 17:54:34,689 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 17:54:34,690 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:54:34,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:54:34,691 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:54:34,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2023-12-02 17:54:34,830 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-02 17:54:34,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:54:34,834 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 17:54:34,836 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:54:34,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2023-12-02 17:54:34,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:34,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:34,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:34,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:54:34,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:34,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:54:34,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:34,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:54:34,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:34,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:34,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:34,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:54:34,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:34,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:34,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:34,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:54:34,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:34,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:34,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:34,993 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:54:35,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:35,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:35,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:35,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:35,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:35,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:54:35,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:35,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:35,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:35,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:54:35,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:35,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:54:35,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:35,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:35,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:35,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:54:35,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:35,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:35,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:35,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:35,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:35,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:54:35,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:35,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:54:35,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:35,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:35,528 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 17:54:35,528 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:54:35,529 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:54:35,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1144737243] [2023-12-02 17:54:35,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1144737243] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:54:35,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:54:35,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 17:54:35,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554898950] [2023-12-02 17:54:35,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:54:35,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 17:54:35,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:54:35,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 17:54:35,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-02 17:54:35,531 INFO L87 Difference]: Start difference. First operand 47836 states and 205728 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:54:36,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:54:36,621 INFO L93 Difference]: Finished difference Result 57601 states and 241144 transitions. [2023-12-02 17:54:36,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 17:54:36,622 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-12-02 17:54:36,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:54:37,010 INFO L225 Difference]: With dead ends: 57601 [2023-12-02 17:54:37,010 INFO L226 Difference]: Without dead ends: 57601 [2023-12-02 17:54:37,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-02 17:54:37,011 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 67 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 17:54:37,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 28 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 17:54:37,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57601 states. [2023-12-02 17:54:38,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57601 to 41957. [2023-12-02 17:54:38,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41957 states, 41948 states have (on average 4.205182607037284) internal successors, (176399), 41956 states have internal predecessors, (176399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:54:38,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41957 states to 41957 states and 176399 transitions. [2023-12-02 17:54:38,675 INFO L78 Accepts]: Start accepts. Automaton has 41957 states and 176399 transitions. Word has length 21 [2023-12-02 17:54:38,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:54:38,675 INFO L495 AbstractCegarLoop]: Abstraction has 41957 states and 176399 transitions. [2023-12-02 17:54:38,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:54:38,675 INFO L276 IsEmpty]: Start isEmpty. Operand 41957 states and 176399 transitions. [2023-12-02 17:54:38,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 17:54:38,681 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:54:38,681 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:54:38,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Ended with exit code 0 [2023-12-02 17:54:38,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:54:38,882 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2023-12-02 17:54:38,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:54:38,882 INFO L85 PathProgramCache]: Analyzing trace with hash -935006702, now seen corresponding path program 2 times [2023-12-02 17:54:38,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:54:38,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1234421522] [2023-12-02 17:54:38,883 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 17:54:38,883 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:54:38,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:54:38,884 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:54:38,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2023-12-02 17:54:39,065 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 17:54:39,065 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:54:39,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 17:54:39,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:54:39,240 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:54:39,240 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:54:39,556 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:54:39,557 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:54:39,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1234421522] [2023-12-02 17:54:39,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1234421522] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:54:39,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1178932420] [2023-12-02 17:54:39,557 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 17:54:39,557 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:54:39,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:54:39,558 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:54:39,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2023-12-02 17:54:39,914 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 17:54:39,914 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:54:39,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 17:54:39,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:54:40,014 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:54:40,014 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:54:40,122 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:54:40,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1178932420] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:54:40,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976625935] [2023-12-02 17:54:40,122 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 17:54:40,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:54:40,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:54:40,123 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:54:40,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-12-02 17:54:40,297 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 17:54:40,297 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:54:40,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 17:54:40,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:54:40,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2023-12-02 17:54:40,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:40,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:54:40,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:40,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:54:40,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:40,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:40,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:40,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:54:40,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:40,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:40,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:40,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:54:40,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:40,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:40,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:40,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:54:40,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:40,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:40,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:40,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:54:40,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:40,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:40,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:40,456 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:54:40,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:40,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:40,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:40,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:40,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:40,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:54:40,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:40,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:54:40,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:40,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:54:40,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:40,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:40,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:40,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:54:40,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:40,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:40,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:40,595 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:54:40,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:40,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:54:40,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:54:40,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:54:41,124 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:54:41,124 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:54:45,077 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:54:45,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976625935] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:54:45,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 17:54:45,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 7, 10] total 27 [2023-12-02 17:54:45,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344758811] [2023-12-02 17:54:45,078 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 17:54:45,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 17:54:45,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:54:45,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 17:54:45,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=598, Unknown=0, NotChecked=0, Total=756 [2023-12-02 17:54:45,080 INFO L87 Difference]: Start difference. First operand 41957 states and 176399 transitions. Second operand has 28 states, 28 states have (on average 2.7142857142857144) internal successors, (76), 27 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:55:03,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:55:03,746 INFO L93 Difference]: Finished difference Result 84610 states and 363176 transitions. [2023-12-02 17:55:03,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-02 17:55:03,747 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.7142857142857144) internal successors, (76), 27 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-12-02 17:55:03,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:55:04,270 INFO L225 Difference]: With dead ends: 84610 [2023-12-02 17:55:04,271 INFO L226 Difference]: Without dead ends: 84610 [2023-12-02 17:55:04,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=301, Invalid=1259, Unknown=0, NotChecked=0, Total=1560 [2023-12-02 17:55:04,272 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 586 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 1539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2023-12-02 17:55:04,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 238 Invalid, 1539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1527 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time] [2023-12-02 17:55:04,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84610 states. [2023-12-02 17:55:05,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84610 to 53347. [2023-12-02 17:55:06,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53347 states, 53338 states have (on average 4.222561775844613) internal successors, (225223), 53346 states have internal predecessors, (225223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:55:06,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53347 states to 53347 states and 225223 transitions. [2023-12-02 17:55:06,503 INFO L78 Accepts]: Start accepts. Automaton has 53347 states and 225223 transitions. Word has length 21 [2023-12-02 17:55:06,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:55:06,504 INFO L495 AbstractCegarLoop]: Abstraction has 53347 states and 225223 transitions. [2023-12-02 17:55:06,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.7142857142857144) internal successors, (76), 27 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:55:06,504 INFO L276 IsEmpty]: Start isEmpty. Operand 53347 states and 225223 transitions. [2023-12-02 17:55:06,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 17:55:06,518 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:55:06,518 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 1, 1] [2023-12-02 17:55:06,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (41)] Ended with exit code 0 [2023-12-02 17:55:06,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Ended with exit code 0 [2023-12-02 17:55:06,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2023-12-02 17:55:07,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:55:07,123 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2023-12-02 17:55:07,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:55:07,123 INFO L85 PathProgramCache]: Analyzing trace with hash 411110862, now seen corresponding path program 3 times [2023-12-02 17:55:07,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:55:07,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1043031253] [2023-12-02 17:55:07,123 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 17:55:07,124 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:55:07,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:55:07,124 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:55:07,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2023-12-02 17:55:07,388 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-12-02 17:55:07,388 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:55:07,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 17:55:07,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:55:07,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2023-12-02 17:55:07,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:07,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:55:07,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:07,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:55:07,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:07,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:07,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:07,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:55:07,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:07,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:07,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:07,456 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:07,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:07,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:55:07,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:07,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:55:07,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:07,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:07,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:07,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:55:07,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:07,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:55:07,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:07,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:07,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:07,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:55:07,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:07,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:55:07,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:07,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:07,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:07,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:07,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:07,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:55:07,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:07,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:55:07,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:07,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:07,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:07,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:07,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:07,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:55:07,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:07,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:07,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:07,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:55:08,172 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:55:08,172 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:55:11,074 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:55:11,075 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:55:11,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1043031253] [2023-12-02 17:55:11,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1043031253] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:55:11,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [517038042] [2023-12-02 17:55:11,075 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 17:55:11,075 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:55:11,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:55:11,076 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:55:11,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2023-12-02 17:55:12,124 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-12-02 17:55:12,124 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:55:12,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 17:55:12,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:55:12,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2023-12-02 17:55:12,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:12,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:55:12,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:12,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:55:12,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:12,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:55:12,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:12,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:12,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:12,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:55:12,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:12,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:12,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:12,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:55:12,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:12,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:12,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:12,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:55:12,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:12,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:55:12,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:12,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:12,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:12,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:12,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:12,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:55:12,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:12,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:55:12,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:12,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:12,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:12,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:12,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:12,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:55:12,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:12,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:55:12,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:12,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:12,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:12,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:12,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:12,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:55:12,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:12,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:12,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:12,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:55:12,659 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:55:12,659 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:55:13,330 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:55:13,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [517038042] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:55:13,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931007248] [2023-12-02 17:55:13,330 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 17:55:13,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:55:13,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:55:13,331 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:55:13,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-12-02 17:55:18,345 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-12-02 17:55:18,345 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:55:18,354 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 17:55:18,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:55:18,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2023-12-02 17:55:18,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:18,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:55:18,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:18,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:55:18,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:18,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:18,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:18,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:55:18,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:18,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:55:18,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:18,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:18,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:18,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:55:18,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:18,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:18,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:18,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:55:18,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:18,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:18,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:18,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:55:18,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:18,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:18,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:18,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:55:18,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:18,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:55:18,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:18,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:18,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:18,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:18,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:18,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:55:18,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:18,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:18,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:18,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:55:18,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:18,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:18,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:18,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:55:18,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:18,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:18,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:18,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:55:18,876 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:55:18,876 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:55:19,518 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:55:19,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931007248] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:55:19,519 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 17:55:19,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12, 12, 12, 12] total 24 [2023-12-02 17:55:19,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129084463] [2023-12-02 17:55:19,519 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 17:55:19,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-02 17:55:19,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:55:19,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-02 17:55:19,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=477, Unknown=0, NotChecked=0, Total=650 [2023-12-02 17:55:19,520 INFO L87 Difference]: Start difference. First operand 53347 states and 225223 transitions. Second operand has 26 states, 25 states have (on average 1.84) internal successors, (46), 25 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:55:49,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:55:49,023 INFO L93 Difference]: Finished difference Result 53371 states and 225259 transitions. [2023-12-02 17:55:49,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-12-02 17:55:49,024 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.84) internal successors, (46), 25 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2023-12-02 17:55:49,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:55:49,335 INFO L225 Difference]: With dead ends: 53371 [2023-12-02 17:55:49,335 INFO L226 Difference]: Without dead ends: 53371 [2023-12-02 17:55:49,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 27.3s TimeCoverageRelationStatistics Valid=994, Invalid=2198, Unknown=0, NotChecked=0, Total=3192 [2023-12-02 17:55:49,336 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 1 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-12-02 17:55:49,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 105 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 853 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-12-02 17:55:49,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53371 states. [2023-12-02 17:55:50,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53371 to 53371. [2023-12-02 17:55:50,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53371 states, 53362 states have (on average 4.2213372812113485) internal successors, (225259), 53370 states have internal predecessors, (225259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:55:50,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53371 states to 53371 states and 225259 transitions. [2023-12-02 17:55:50,823 INFO L78 Accepts]: Start accepts. Automaton has 53371 states and 225259 transitions. Word has length 23 [2023-12-02 17:55:50,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:55:50,823 INFO L495 AbstractCegarLoop]: Abstraction has 53371 states and 225259 transitions. [2023-12-02 17:55:50,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.84) internal successors, (46), 25 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:55:50,824 INFO L276 IsEmpty]: Start isEmpty. Operand 53371 states and 225259 transitions. [2023-12-02 17:55:50,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-02 17:55:50,839 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:55:50,839 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:55:50,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Ended with exit code 0 [2023-12-02 17:55:51,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (44)] Ended with exit code 0 [2023-12-02 17:55:51,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2023-12-02 17:55:51,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:55:51,440 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2023-12-02 17:55:51,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:55:51,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1304808580, now seen corresponding path program 3 times [2023-12-02 17:55:51,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:55:51,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [525536478] [2023-12-02 17:55:51,441 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 17:55:51,441 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:55:51,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:55:51,442 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:55:51,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2023-12-02 17:55:51,672 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-12-02 17:55:51,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:55:51,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 17:55:51,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:55:51,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2023-12-02 17:55:51,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:51,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:55:51,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:51,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:51,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:51,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:55:51,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:51,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:51,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:51,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:55:51,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:51,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:51,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:51,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:55:51,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:51,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:51,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:51,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:55:51,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:51,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:55:51,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:51,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:51,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:51,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:55:51,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:51,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:55:51,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:51,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:55:51,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:51,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:51,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:51,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:51,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:51,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:55:51,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:51,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:51,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:51,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:55:51,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:51,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:52,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:52,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:55:52,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:52,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:52,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:52,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:55:52,754 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 17:55:52,754 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:55:55,362 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 17:55:55,362 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:55:55,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [525536478] [2023-12-02 17:55:55,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [525536478] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:55:55,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1331506425] [2023-12-02 17:55:55,362 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 17:55:55,362 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:55:55,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:55:55,363 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:55:55,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2023-12-02 17:55:55,792 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-12-02 17:55:55,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:55:55,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 17:55:55,798 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:55:55,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2023-12-02 17:55:55,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:55,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:55:55,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:55,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:55:55,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:55,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:55,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:55,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:55:55,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:55,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:55,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:55,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:55,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:55,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:55:55,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:55,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:55,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:55,885 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:55:55,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:55,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:55,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:55,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:55:55,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:55,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:55:55,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:55,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:55,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:55,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:55,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:55,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:55:55,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:55,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:55,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:55,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:55:55,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:55,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:55,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:55,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:55:56,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:56,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:55:56,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:56,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:55:56,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:56,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:55:56,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:55:56,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:55:56,715 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 17:55:56,715 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:56:00,055 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 17:56:00,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1331506425] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:56:00,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263152634] [2023-12-02 17:56:00,055 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 17:56:00,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:56:00,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:56:00,056 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:56:00,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-12-02 17:56:00,469 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-12-02 17:56:00,469 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:56:00,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 17:56:00,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:56:00,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2023-12-02 17:56:00,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:00,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:00,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:00,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:56:00,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:00,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:56:00,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:00,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:00,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:00,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:56:00,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:00,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:00,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:00,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:56:00,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:00,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:00,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:00,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:56:00,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:00,602 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:00,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:00,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:56:00,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:00,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:56:00,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:00,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:00,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:00,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:00,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:00,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:56:00,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:00,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:00,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:00,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:56:00,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:00,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:56:00,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:00,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:00,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:00,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:56:00,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:00,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:00,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:00,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:00,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:00,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:56:01,121 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 17:56:01,121 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:56:04,604 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 17:56:04,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263152634] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:56:04,605 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 17:56:04,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 8, 7, 9] total 21 [2023-12-02 17:56:04,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610555075] [2023-12-02 17:56:04,605 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 17:56:04,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-02 17:56:04,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:56:04,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-02 17:56:04,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2023-12-02 17:56:04,606 INFO L87 Difference]: Start difference. First operand 53371 states and 225259 transitions. Second operand has 23 states, 22 states have (on average 3.227272727272727) internal successors, (71), 22 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:56:11,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:56:11,567 INFO L93 Difference]: Finished difference Result 78760 states and 338433 transitions. [2023-12-02 17:56:11,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 17:56:11,569 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.227272727272727) internal successors, (71), 22 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2023-12-02 17:56:11,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:56:12,154 INFO L225 Difference]: With dead ends: 78760 [2023-12-02 17:56:12,154 INFO L226 Difference]: Without dead ends: 78760 [2023-12-02 17:56:12,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 133 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=200, Invalid=556, Unknown=0, NotChecked=0, Total=756 [2023-12-02 17:56:12,155 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 282 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 1185 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 1185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:56:12,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 182 Invalid, 1185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1185 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-12-02 17:56:12,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78760 states. [2023-12-02 17:56:13,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78760 to 14314. [2023-12-02 17:56:13,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14314 states, 14309 states have (on average 4.074079250821161) internal successors, (58296), 14313 states have internal predecessors, (58296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:56:13,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14314 states to 14314 states and 58296 transitions. [2023-12-02 17:56:13,228 INFO L78 Accepts]: Start accepts. Automaton has 14314 states and 58296 transitions. Word has length 27 [2023-12-02 17:56:13,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:56:13,229 INFO L495 AbstractCegarLoop]: Abstraction has 14314 states and 58296 transitions. [2023-12-02 17:56:13,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.227272727272727) internal successors, (71), 22 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:56:13,229 INFO L276 IsEmpty]: Start isEmpty. Operand 14314 states and 58296 transitions. [2023-12-02 17:56:13,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-02 17:56:13,238 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:56:13,238 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1] [2023-12-02 17:56:13,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (47)] Ended with exit code 0 [2023-12-02 17:56:13,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2023-12-02 17:56:13,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Ended with exit code 0 [2023-12-02 17:56:13,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:56:13,839 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2023-12-02 17:56:13,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:56:13,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1869746003, now seen corresponding path program 2 times [2023-12-02 17:56:13,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:56:13,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [808495585] [2023-12-02 17:56:13,840 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 17:56:13,840 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:56:13,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:56:13,841 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:56:13,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2023-12-02 17:56:14,016 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 17:56:14,016 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:56:14,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 17:56:14,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:56:14,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2023-12-02 17:56:14,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:14,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:56:14,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:14,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:56:14,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:14,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:14,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:14,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:14,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:14,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:56:14,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:14,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:14,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:14,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:56:14,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:14,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:14,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:14,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:56:14,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:14,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:14,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:14,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:56:14,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:14,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:56:14,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:14,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:14,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:14,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:14,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:14,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:56:14,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:14,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:56:14,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:14,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:56:14,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:14,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:14,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:14,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:56:14,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:14,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:14,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:14,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:56:14,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:14,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:14,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:14,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:56:14,779 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:56:14,779 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:56:16,729 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:56:16,729 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:56:16,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [808495585] [2023-12-02 17:56:16,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [808495585] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:56:16,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1824310839] [2023-12-02 17:56:16,729 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 17:56:16,730 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:56:16,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:56:16,730 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:56:16,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2023-12-02 17:56:17,060 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 17:56:17,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:56:17,063 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 17:56:17,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:56:17,824 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 17:56:17,825 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:56:19,015 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 17:56:19,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1824310839] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:56:19,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611429284] [2023-12-02 17:56:19,016 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 17:56:19,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:56:19,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:56:19,016 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:56:19,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-12-02 17:56:19,179 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 17:56:19,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:56:19,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 17:56:19,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:56:19,801 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:56:19,802 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:56:20,522 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:56:20,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611429284] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:56:20,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 17:56:20,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 9, 9, 9, 9] total 46 [2023-12-02 17:56:20,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973664100] [2023-12-02 17:56:20,523 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 17:56:20,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2023-12-02 17:56:20,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:56:20,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2023-12-02 17:56:20,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=1881, Unknown=0, NotChecked=0, Total=2162 [2023-12-02 17:56:20,525 INFO L87 Difference]: Start difference. First operand 14314 states and 58296 transitions. Second operand has 47 states, 47 states have (on average 2.617021276595745) internal successors, (123), 46 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:56:44,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:56:44,523 INFO L93 Difference]: Finished difference Result 32690 states and 131580 transitions. [2023-12-02 17:56:44,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-02 17:56:44,525 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 2.617021276595745) internal successors, (123), 46 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2023-12-02 17:56:44,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:56:44,628 INFO L225 Difference]: With dead ends: 32690 [2023-12-02 17:56:44,628 INFO L226 Difference]: Without dead ends: 32690 [2023-12-02 17:56:44,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1223 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=753, Invalid=4503, Unknown=0, NotChecked=0, Total=5256 [2023-12-02 17:56:44,630 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 1095 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 5842 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 5857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 5842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:56:44,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1095 Valid, 617 Invalid, 5857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 5842 Invalid, 0 Unknown, 0 Unchecked, 19.0s Time] [2023-12-02 17:56:44,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32690 states. [2023-12-02 17:56:45,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32690 to 26972. [2023-12-02 17:56:45,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26972 states, 26967 states have (on average 4.10171691326436) internal successors, (110611), 26971 states have internal predecessors, (110611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:56:45,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26972 states to 26972 states and 110611 transitions. [2023-12-02 17:56:45,291 INFO L78 Accepts]: Start accepts. Automaton has 26972 states and 110611 transitions. Word has length 27 [2023-12-02 17:56:45,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:56:45,292 INFO L495 AbstractCegarLoop]: Abstraction has 26972 states and 110611 transitions. [2023-12-02 17:56:45,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 2.617021276595745) internal successors, (123), 46 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:56:45,292 INFO L276 IsEmpty]: Start isEmpty. Operand 26972 states and 110611 transitions. [2023-12-02 17:56:45,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 17:56:45,324 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:56:45,324 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:56:45,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Ended with exit code 0 [2023-12-02 17:56:45,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2023-12-02 17:56:45,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (50)] Ended with exit code 0 [2023-12-02 17:56:45,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 17:56:45,925 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2023-12-02 17:56:45,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:56:45,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1133545699, now seen corresponding path program 2 times [2023-12-02 17:56:45,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:56:45,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [851702757] [2023-12-02 17:56:45,926 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 17:56:46,041 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:56:46,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:56:46,042 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:56:46,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2023-12-02 17:56:46,249 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 17:56:46,249 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:56:46,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 17:56:46,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:56:46,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2023-12-02 17:56:46,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:46,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:56:46,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:46,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:56:46,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:46,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:56:46,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:46,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:56:46,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:46,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:46,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:46,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:56:46,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:46,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:46,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:46,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:46,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:46,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:56:46,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:46,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:46,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:46,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:56:46,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:46,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:46,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:46,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:56:46,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:46,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:46,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:46,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:56:46,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:46,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:46,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:46,453 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:56:46,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:46,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:46,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:46,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:56:46,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:46,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:46,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:46,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:56:46,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:46,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:56:46,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:46,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:47,018 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:56:47,018 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:56:48,871 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:56:48,871 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:56:48,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [851702757] [2023-12-02 17:56:48,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [851702757] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:56:48,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [641870751] [2023-12-02 17:56:48,872 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 17:56:48,872 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:56:48,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:56:48,873 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:56:48,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (53)] Waiting until timeout for monitored process [2023-12-02 17:56:49,217 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 17:56:49,218 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:56:49,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 17:56:49,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:56:50,015 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-02 17:56:50,015 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:56:51,102 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-02 17:56:51,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [641870751] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:56:51,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921334167] [2023-12-02 17:56:51,102 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 17:56:51,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:56:51,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:56:51,103 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:56:51,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-12-02 17:56:51,293 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 17:56:51,293 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:56:51,300 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 17:56:51,302 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:56:51,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2023-12-02 17:56:51,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:51,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:51,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:51,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:56:51,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:51,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:51,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:51,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:51,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:51,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:56:51,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:51,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:51,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:51,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:56:51,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:51,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:51,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:51,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:56:51,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:51,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:56:51,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:51,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:51,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:51,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:51,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:51,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:56:51,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:51,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:51,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:51,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:56:51,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:51,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:51,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:51,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:56:51,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:51,470 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:51,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:51,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:56:51,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:51,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:56:51,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:51,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:56:51,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:51,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:56:51,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:56:51,556 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:56:52,315 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:56:52,315 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:56:53,810 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:56:53,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921334167] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:56:53,810 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 17:56:53,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 9, 8, 9, 9] total 45 [2023-12-02 17:56:53,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769685735] [2023-12-02 17:56:53,811 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 17:56:53,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-02 17:56:53,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:56:53,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-02 17:56:53,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=1869, Unknown=0, NotChecked=0, Total=2070 [2023-12-02 17:56:53,813 INFO L87 Difference]: Start difference. First operand 26972 states and 110611 transitions. Second operand has 46 states, 46 states have (on average 2.760869565217391) internal successors, (127), 45 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:57:17,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:57:17,541 INFO L93 Difference]: Finished difference Result 24965 states and 100168 transitions. [2023-12-02 17:57:17,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-02 17:57:17,542 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 2.760869565217391) internal successors, (127), 45 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2023-12-02 17:57:17,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:57:17,626 INFO L225 Difference]: With dead ends: 24965 [2023-12-02 17:57:17,626 INFO L226 Difference]: Without dead ends: 24569 [2023-12-02 17:57:17,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 129 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 999 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=422, Invalid=3360, Unknown=0, NotChecked=0, Total=3782 [2023-12-02 17:57:17,628 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 851 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 4056 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 4077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 4056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:57:17,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 611 Invalid, 4077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 4056 Invalid, 0 Unknown, 0 Unchecked, 20.0s Time] [2023-12-02 17:57:17,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24569 states. [2023-12-02 17:57:18,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24569 to 22778. [2023-12-02 17:57:18,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22778 states, 22773 states have (on average 4.04514117595398) internal successors, (92120), 22777 states have internal predecessors, (92120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:57:18,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22778 states to 22778 states and 92120 transitions. [2023-12-02 17:57:18,122 INFO L78 Accepts]: Start accepts. Automaton has 22778 states and 92120 transitions. Word has length 30 [2023-12-02 17:57:18,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:57:18,122 INFO L495 AbstractCegarLoop]: Abstraction has 22778 states and 92120 transitions. [2023-12-02 17:57:18,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 2.760869565217391) internal successors, (127), 45 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:57:18,122 INFO L276 IsEmpty]: Start isEmpty. Operand 22778 states and 92120 transitions. [2023-12-02 17:57:18,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 17:57:18,139 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:57:18,139 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2023-12-02 17:57:18,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Ended with exit code 0 [2023-12-02 17:57:18,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2023-12-02 17:57:18,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (53)] Ended with exit code 0 [2023-12-02 17:57:18,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 17:57:18,740 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2023-12-02 17:57:18,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:57:18,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1906289007, now seen corresponding path program 3 times [2023-12-02 17:57:18,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:57:18,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [698338059] [2023-12-02 17:57:18,741 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 17:57:18,741 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:57:18,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:57:18,742 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:57:18,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2023-12-02 17:57:19,050 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-12-02 17:57:19,051 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:57:19,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 17:57:19,063 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:57:19,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2023-12-02 17:57:19,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:19,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:57:19,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:19,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:57:19,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:19,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:19,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:19,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:57:19,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:19,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:19,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:19,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:19,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:19,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:57:19,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:19,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:19,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:19,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:57:19,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:19,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:57:19,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:19,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:19,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:19,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:19,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:19,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:57:19,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:19,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:57:19,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:19,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:19,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:19,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:57:19,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:19,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:19,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:19,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:57:19,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:19,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:19,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:19,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:57:19,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:19,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:19,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:19,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:57:19,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:19,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:19,770 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 17:57:19,771 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:57:21,637 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 17:57:21,637 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:57:21,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [698338059] [2023-12-02 17:57:21,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [698338059] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:57:21,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1107462648] [2023-12-02 17:57:21,637 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 17:57:21,638 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:57:21,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:57:21,638 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:57:21,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (56)] Waiting until timeout for monitored process [2023-12-02 17:57:22,412 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-12-02 17:57:22,412 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:57:22,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 17:57:22,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:57:22,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2023-12-02 17:57:22,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:22,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:22,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:22,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:57:22,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:22,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:57:22,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:22,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:22,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:22,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:57:22,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:22,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:22,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:22,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:57:22,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:22,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:57:22,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:22,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:22,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:22,556 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:22,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:22,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:57:22,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:22,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:57:22,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:22,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:22,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:22,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:22,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:22,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:57:22,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:22,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:57:22,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:22,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:22,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:22,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:22,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:22,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:57:22,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:22,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:57:22,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:22,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:22,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:22,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:57:22,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:22,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:23,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-12-02 17:57:23,641 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:57:23,641 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:57:25,625 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:57:25,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1107462648] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:57:25,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229977444] [2023-12-02 17:57:25,625 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 17:57:25,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:57:25,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:57:25,626 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:57:25,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-12-02 17:57:26,074 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-12-02 17:57:26,074 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:57:26,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 17:57:26,084 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:57:26,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2023-12-02 17:57:26,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:26,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:57:26,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:26,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:26,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:26,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:57:26,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:26,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:57:26,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:26,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:57:26,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:26,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:26,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:26,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:57:26,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:26,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:57:26,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:26,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:26,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:26,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:26,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:26,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:57:26,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:26,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:57:26,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:26,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:26,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:26,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:26,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:26,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:57:26,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:26,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:57:26,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:26,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:26,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:26,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:57:26,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:26,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:26,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:26,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:57:26,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:26,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:26,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:26,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:57:26,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:26,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:26,538 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 17:57:26,538 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:57:27,288 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 17:57:27,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229977444] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:57:27,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 17:57:27,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 13, 13, 9, 9] total 43 [2023-12-02 17:57:27,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730826421] [2023-12-02 17:57:27,289 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 17:57:27,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-12-02 17:57:27,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:57:27,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-12-02 17:57:27,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=1611, Unknown=0, NotChecked=0, Total=1892 [2023-12-02 17:57:27,291 INFO L87 Difference]: Start difference. First operand 22778 states and 92120 transitions. Second operand has 44 states, 44 states have (on average 2.522727272727273) internal successors, (111), 43 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:57:55,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:57:55,393 INFO L93 Difference]: Finished difference Result 54022 states and 220081 transitions. [2023-12-02 17:57:55,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-12-02 17:57:55,395 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 2.522727272727273) internal successors, (111), 43 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2023-12-02 17:57:55,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:57:55,649 INFO L225 Difference]: With dead ends: 54022 [2023-12-02 17:57:55,649 INFO L226 Difference]: Without dead ends: 54022 [2023-12-02 17:57:55,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1631 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=971, Invalid=4431, Unknown=0, NotChecked=0, Total=5402 [2023-12-02 17:57:55,652 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 2833 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 7447 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2833 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 7502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 7447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2023-12-02 17:57:55,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2833 Valid, 855 Invalid, 7502 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [55 Valid, 7447 Invalid, 0 Unknown, 0 Unchecked, 19.3s Time] [2023-12-02 17:57:55,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54022 states. [2023-12-02 17:57:56,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54022 to 50005. [2023-12-02 17:57:56,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50005 states, 50000 states have (on average 4.12964) internal successors, (206482), 50004 states have internal predecessors, (206482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:57:57,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50005 states to 50005 states and 206482 transitions. [2023-12-02 17:57:57,392 INFO L78 Accepts]: Start accepts. Automaton has 50005 states and 206482 transitions. Word has length 31 [2023-12-02 17:57:57,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:57:57,392 INFO L495 AbstractCegarLoop]: Abstraction has 50005 states and 206482 transitions. [2023-12-02 17:57:57,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 2.522727272727273) internal successors, (111), 43 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:57:57,392 INFO L276 IsEmpty]: Start isEmpty. Operand 50005 states and 206482 transitions. [2023-12-02 17:57:57,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-02 17:57:57,425 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:57:57,425 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:57:57,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2023-12-02 17:57:57,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Forceful destruction successful, exit code 0 [2023-12-02 17:57:57,830 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (56)] Ended with exit code 0 [2023-12-02 17:57:58,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 17:57:58,026 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2023-12-02 17:57:58,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:57:58,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1135515321, now seen corresponding path program 3 times [2023-12-02 17:57:58,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:57:58,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1127099257] [2023-12-02 17:57:58,028 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 17:57:58,028 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:57:58,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:57:58,029 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:57:58,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2023-12-02 17:57:58,355 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-12-02 17:57:58,355 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:57:58,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 17:57:58,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:57:58,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2023-12-02 17:57:58,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:58,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:57:58,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:58,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:57:58,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:58,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:58,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:58,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:58,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:58,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:57:58,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:58,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:57:58,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:58,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:58,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:58,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:58,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:58,453 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:57:58,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:58,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:57:58,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:58,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:57:58,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:58,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:57:58,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:58,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:58,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:58,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:57:58,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:58,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:58,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:58,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:57:58,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:58,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:58,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:58,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:57:58,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:58,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:58,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:58,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:58,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:58,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:57:58,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:58,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:57:58,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:57:58,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:57:59,515 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 17:57:59,515 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:58:01,456 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 17:58:01,457 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:58:01,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1127099257] [2023-12-02 17:58:01,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1127099257] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:58:01,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [131900839] [2023-12-02 17:58:01,457 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 17:58:01,457 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:58:01,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:58:01,458 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:58:01,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (59)] Waiting until timeout for monitored process [2023-12-02 17:58:02,355 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-12-02 17:58:02,355 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:58:02,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 17:58:02,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:58:03,515 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 31 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:58:03,515 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:58:05,322 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 31 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 17:58:05,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [131900839] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:58:05,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106240651] [2023-12-02 17:58:05,323 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 17:58:05,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:58:05,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:58:05,324 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:58:05,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-12-02 17:58:05,870 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-12-02 17:58:05,870 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:58:05,879 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 17:58:05,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:58:05,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2023-12-02 17:58:05,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:58:05,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:58:05,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:58:05,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:58:05,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:58:05,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:58:05,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:58:05,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:58:05,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:58:05,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:58:05,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:58:05,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:58:05,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:58:05,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:58:05,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:58:05,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:58:05,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:58:05,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:58:05,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:58:05,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:58:05,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:58:05,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:58:05,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:58:05,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:58:06,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:58:06,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:58:06,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:58:06,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:58:06,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:58:06,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:58:06,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:58:06,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:58:06,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:58:06,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 17:58:06,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:58:06,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2023-12-02 17:58:06,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:58:06,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:58:06,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:58:06,083 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:58:06,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:58:06,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:58:06,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:58:06,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 17:58:06,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:58:06,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2023-12-02 17:58:07,012 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 17:58:07,012 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:58:10,546 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 17:58:10,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106240651] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:58:10,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 17:58:10,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 13, 12, 8, 9] total 52 [2023-12-02 17:58:10,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824316396] [2023-12-02 17:58:10,547 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 17:58:10,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2023-12-02 17:58:10,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:58:10,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2023-12-02 17:58:10,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=320, Invalid=2436, Unknown=0, NotChecked=0, Total=2756 [2023-12-02 17:58:10,549 INFO L87 Difference]: Start difference. First operand 50005 states and 206482 transitions. Second operand has 53 states, 53 states have (on average 2.8679245283018866) internal successors, (152), 52 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:58:59,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:58:59,046 INFO L93 Difference]: Finished difference Result 84769 states and 353373 transitions. [2023-12-02 17:58:59,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-12-02 17:58:59,048 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 2.8679245283018866) internal successors, (152), 52 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2023-12-02 17:58:59,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:58:59,368 INFO L225 Difference]: With dead ends: 84769 [2023-12-02 17:58:59,368 INFO L226 Difference]: Without dead ends: 84769 [2023-12-02 17:58:59,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 146 SyntacticMatches, 1 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2068 ImplicationChecksByTransitivity, 22.1s TimeCoverageRelationStatistics Valid=1107, Invalid=6375, Unknown=0, NotChecked=0, Total=7482 [2023-12-02 17:58:59,370 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 3514 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 7322 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3514 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 7382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 7322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.4s IncrementalHoareTripleChecker+Time [2023-12-02 17:58:59,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3514 Valid, 946 Invalid, 7382 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [60 Valid, 7322 Invalid, 0 Unknown, 0 Unchecked, 32.4s Time] [2023-12-02 17:58:59,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84769 states. [2023-12-02 17:59:01,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84769 to 79405. [2023-12-02 17:59:01,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79405 states, 79400 states have (on average 4.205302267002519) internal successors, (333901), 79404 states have internal predecessors, (333901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:59:01,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79405 states to 79405 states and 333901 transitions. [2023-12-02 17:59:01,783 INFO L78 Accepts]: Start accepts. Automaton has 79405 states and 333901 transitions. Word has length 34 [2023-12-02 17:59:01,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:59:01,783 INFO L495 AbstractCegarLoop]: Abstraction has 79405 states and 333901 transitions. [2023-12-02 17:59:01,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 2.8679245283018866) internal successors, (152), 52 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 17:59:01,784 INFO L276 IsEmpty]: Start isEmpty. Operand 79405 states and 333901 transitions. [2023-12-02 17:59:01,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 17:59:01,824 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:59:01,824 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:59:01,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2023-12-02 17:59:02,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (59)] Forceful destruction successful, exit code 0 [2023-12-02 17:59:02,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (58)] Forceful destruction successful, exit code 0 [2023-12-02 17:59:02,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:59:02,425 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2023-12-02 17:59:02,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:59:02,425 INFO L85 PathProgramCache]: Analyzing trace with hash -371021384, now seen corresponding path program 1 times [2023-12-02 17:59:02,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:59:02,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1365822890] [2023-12-02 17:59:02,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:59:02,426 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 17:59:02,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:59:02,427 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 17:59:02,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2023-12-02 17:59:02,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:59:02,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-02 17:59:02,703 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:59:02,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 144 [2023-12-02 17:59:03,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:59:03,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 23 [2023-12-02 17:59:04,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 23 [2023-12-02 17:59:04,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:59:04,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:59:04,791 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:59:04,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:59:04,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:59:04,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:59:04,798 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:59:04,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:59:04,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:59:04,803 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:59:04,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:59:04,805 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:59:04,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 219 treesize of output 83 [2023-12-02 17:59:05,062 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:59:05,062 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:59:05,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 195 treesize of output 193 [2023-12-02 17:59:05,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 191 [2023-12-02 17:59:06,769 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse22 (bvmul (_ bv4 32) c_~M~0))) (let ((.cse7 (= c_~mts1~0 (_ bv0 32))) (.cse3 (bvadd .cse22 (_ bv3 32) c_~A~0.offset)) (.cse4 (bvadd .cse22 (_ bv2 32) c_~A~0.offset)) (.cse5 (bvadd .cse22 c_~A~0.offset (_ bv1 32))) (.cse6 (bvadd .cse22 c_~A~0.offset))) (and (forall ((v_ArrVal_1784 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse0 (let ((.cse2 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1784) c_~A~0.base))) (concat (concat (concat (select .cse2 .cse3) (select .cse2 .cse4)) (select .cse2 .cse5)) (select .cse2 .cse6))))) (let ((.cse1 (bvadd c_~mts2~0 .cse0 c_~sum~0))) (or (not (bvslt (bvadd c_~mts3~0 .cse0) (_ bv0 32))) (= c_~mts1~0 .cse1) (not (bvslt (_ bv0 32) .cse1)))))) (or .cse7 (forall ((v_ArrVal_1784 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse8 (let ((.cse9 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1784) c_~A~0.base))) (concat (concat (concat (select .cse9 .cse3) (select .cse9 .cse4)) (select .cse9 .cse5)) (select .cse9 .cse6))))) (or (not (bvslt (bvadd c_~mts3~0 .cse8) (_ bv0 32))) (= c_~mts1~0 (bvadd c_~mts2~0 .cse8 c_~sum~0)))))) (or (forall ((v_ArrVal_1784 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse10 (let ((.cse11 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1784) c_~A~0.base))) (concat (concat (concat (select .cse11 .cse3) (select .cse11 .cse4)) (select .cse11 .cse5)) (select .cse11 .cse6))))) (or (bvslt (_ bv0 32) (bvadd c_~mts2~0 .cse10 c_~sum~0)) (not (bvslt (bvadd c_~mts3~0 .cse10) (_ bv0 32)))))) .cse7) (or (and (forall ((v_ArrVal_1784 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse13 (let ((.cse14 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1784) c_~A~0.base))) (concat (concat (concat (select .cse14 .cse3) (select .cse14 .cse4)) (select .cse14 .cse5)) (select .cse14 .cse6))))) (let ((.cse12 (bvadd c_~mts3~0 .cse13))) (or (= .cse12 c_~mts1~0) (bvslt .cse12 (bvadd c_~mts2~0 .cse13 c_~sum~0)) (bvslt .cse12 (_ bv0 32)))))) (forall ((v_ArrVal_1784 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse16 (let ((.cse17 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1784) c_~A~0.base))) (concat (concat (concat (select .cse17 .cse3) (select .cse17 .cse4)) (select .cse17 .cse5)) (select .cse17 .cse6))))) (let ((.cse15 (bvadd c_~mts3~0 .cse16))) (or (= .cse15 c_~mts1~0) (bvslt .cse15 (_ bv0 32)) (= c_~mts1~0 (bvadd c_~mts2~0 .cse16 c_~sum~0)))))) (forall ((v_ArrVal_1784 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse20 (let ((.cse21 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1784) c_~A~0.base))) (concat (concat (concat (select .cse21 .cse3) (select .cse21 .cse4)) (select .cse21 .cse5)) (select .cse21 .cse6))))) (let ((.cse18 (bvadd c_~mts3~0 .cse20)) (.cse19 (bvadd c_~mts2~0 .cse20 c_~sum~0))) (or (not (bvslt .cse18 .cse19)) (bvslt .cse18 (_ bv0 32)) (= c_~mts1~0 .cse19)))))) (not (bvule .cse6 (bvadd .cse22 (_ bv4 32) c_~A~0.offset))))))) is different from false [2023-12-02 17:59:07,676 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse14 (bvmul (_ bv4 32) c_~M~0))) (let ((.cse4 (bvadd .cse14 (_ bv3 32) c_~A~0.offset)) (.cse5 (bvadd .cse14 (_ bv2 32) c_~A~0.offset)) (.cse6 (bvadd .cse14 c_~A~0.offset (_ bv1 32))) (.cse7 (bvadd .cse14 c_~A~0.offset)) (.cse18 (= |c_thread1Thread1of1ForFork1_#t~ite5#1| (_ bv0 32)))) (and (or (and (forall ((v_ArrVal_1784 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse2 (let ((.cse3 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1784) c_~A~0.base))) (concat (concat (concat (select .cse3 .cse4) (select .cse3 .cse5)) (select .cse3 .cse6)) (select .cse3 .cse7))))) (let ((.cse1 (bvadd c_~mts2~0 .cse2 c_~sum~0)) (.cse0 (bvadd c_~mts3~0 .cse2))) (or (not (bvslt .cse0 .cse1)) (= |c_thread1Thread1of1ForFork1_#t~ite5#1| .cse1) (bvslt .cse0 (_ bv0 32)))))) (forall ((v_ArrVal_1784 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse8 (let ((.cse10 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1784) c_~A~0.base))) (concat (concat (concat (select .cse10 .cse4) (select .cse10 .cse5)) (select .cse10 .cse6)) (select .cse10 .cse7))))) (let ((.cse9 (bvadd c_~mts3~0 .cse8))) (or (= |c_thread1Thread1of1ForFork1_#t~ite5#1| (bvadd c_~mts2~0 .cse8 c_~sum~0)) (bvslt .cse9 (_ bv0 32)) (= .cse9 |c_thread1Thread1of1ForFork1_#t~ite5#1|))))) (forall ((v_ArrVal_1784 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse12 (let ((.cse13 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1784) c_~A~0.base))) (concat (concat (concat (select .cse13 .cse4) (select .cse13 .cse5)) (select .cse13 .cse6)) (select .cse13 .cse7))))) (let ((.cse11 (bvadd c_~mts3~0 .cse12))) (or (bvslt .cse11 (bvadd c_~mts2~0 .cse12 c_~sum~0)) (bvslt .cse11 (_ bv0 32)) (= .cse11 |c_thread1Thread1of1ForFork1_#t~ite5#1|)))))) (not (bvule .cse7 (bvadd .cse14 (_ bv4 32) c_~A~0.offset)))) (forall ((v_ArrVal_1784 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse16 (let ((.cse17 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1784) c_~A~0.base))) (concat (concat (concat (select .cse17 .cse4) (select .cse17 .cse5)) (select .cse17 .cse6)) (select .cse17 .cse7))))) (let ((.cse15 (bvadd c_~mts2~0 .cse16 c_~sum~0))) (or (= |c_thread1Thread1of1ForFork1_#t~ite5#1| .cse15) (not (bvslt (bvadd c_~mts3~0 .cse16) (_ bv0 32))) (not (bvslt (_ bv0 32) .cse15)))))) (or .cse18 (forall ((v_ArrVal_1784 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse19 (let ((.cse20 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1784) c_~A~0.base))) (concat (concat (concat (select .cse20 .cse4) (select .cse20 .cse5)) (select .cse20 .cse6)) (select .cse20 .cse7))))) (or (= |c_thread1Thread1of1ForFork1_#t~ite5#1| (bvadd c_~mts2~0 .cse19 c_~sum~0)) (not (bvslt (bvadd c_~mts3~0 .cse19) (_ bv0 32))))))) (or (forall ((v_ArrVal_1784 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse21 (let ((.cse22 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1784) c_~A~0.base))) (concat (concat (concat (select .cse22 .cse4) (select .cse22 .cse5)) (select .cse22 .cse6)) (select .cse22 .cse7))))) (or (bvslt (_ bv0 32) (bvadd c_~mts2~0 .cse21 c_~sum~0)) (not (bvslt (bvadd c_~mts3~0 .cse21) (_ bv0 32)))))) .cse18)))) is different from false [2023-12-02 17:59:08,406 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse7 (bvmul (_ bv4 32) c_~M~0))) (let ((.cse6 (= |c_thread1Thread1of1ForFork1_#t~ite5#1| (_ bv0 32))) (.cse2 (bvadd .cse7 (_ bv3 32) c_~A~0.offset)) (.cse3 (bvadd .cse7 (_ bv2 32) c_~A~0.offset)) (.cse4 (bvadd .cse7 c_~A~0.offset (_ bv1 32))) (.cse5 (bvadd .cse7 c_~A~0.offset))) (and (or (forall ((v_ArrVal_1783 (Array (_ BitVec 32) (_ BitVec 8))) (v_ArrVal_1784 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse0 (let ((.cse1 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1783) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1784) c_~A~0.base))) (concat (concat (concat (select .cse1 .cse2) (select .cse1 .cse3)) (select .cse1 .cse4)) (select .cse1 .cse5))))) (or (= (bvadd c_~mts2~0 .cse0 c_~sum~0) |c_thread1Thread1of1ForFork1_#t~ite5#1|) (not (bvslt (bvadd c_~mts3~0 .cse0) (_ bv0 32)))))) .cse6) (or (not (bvule .cse5 (bvadd .cse7 (_ bv4 32) c_~A~0.offset))) (and (forall ((v_ArrVal_1783 (Array (_ BitVec 32) (_ BitVec 8))) (v_ArrVal_1784 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse9 (let ((.cse10 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1783) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1784) c_~A~0.base))) (concat (concat (concat (select .cse10 .cse2) (select .cse10 .cse3)) (select .cse10 .cse4)) (select .cse10 .cse5))))) (let ((.cse8 (bvadd c_~mts3~0 .cse9))) (or (bvslt .cse8 (bvadd c_~mts2~0 .cse9 c_~sum~0)) (= |c_thread1Thread1of1ForFork1_#t~ite5#1| .cse8) (bvslt .cse8 (_ bv0 32)))))) (forall ((v_ArrVal_1783 (Array (_ BitVec 32) (_ BitVec 8))) (v_ArrVal_1784 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse12 (let ((.cse13 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1783) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1784) c_~A~0.base))) (concat (concat (concat (select .cse13 .cse2) (select .cse13 .cse3)) (select .cse13 .cse4)) (select .cse13 .cse5))))) (let ((.cse11 (bvadd c_~mts3~0 .cse12))) (or (= |c_thread1Thread1of1ForFork1_#t~ite5#1| .cse11) (= (bvadd c_~mts2~0 .cse12 c_~sum~0) |c_thread1Thread1of1ForFork1_#t~ite5#1|) (bvslt .cse11 (_ bv0 32)))))) (forall ((v_ArrVal_1783 (Array (_ BitVec 32) (_ BitVec 8))) (v_ArrVal_1784 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse16 (let ((.cse17 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1783) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1784) c_~A~0.base))) (concat (concat (concat (select .cse17 .cse2) (select .cse17 .cse3)) (select .cse17 .cse4)) (select .cse17 .cse5))))) (let ((.cse15 (bvadd c_~mts2~0 .cse16 c_~sum~0)) (.cse14 (bvadd c_~mts3~0 .cse16))) (or (not (bvslt .cse14 .cse15)) (= .cse15 |c_thread1Thread1of1ForFork1_#t~ite5#1|) (bvslt .cse14 (_ bv0 32)))))))) (or .cse6 (forall ((v_ArrVal_1783 (Array (_ BitVec 32) (_ BitVec 8))) (v_ArrVal_1784 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse18 (let ((.cse19 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1783) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1784) c_~A~0.base))) (concat (concat (concat (select .cse19 .cse2) (select .cse19 .cse3)) (select .cse19 .cse4)) (select .cse19 .cse5))))) (or (not (bvslt (bvadd c_~mts3~0 .cse18) (_ bv0 32))) (bvslt (_ bv0 32) (bvadd c_~mts2~0 .cse18 c_~sum~0)))))) (forall ((v_ArrVal_1783 (Array (_ BitVec 32) (_ BitVec 8))) (v_ArrVal_1784 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse21 (let ((.cse22 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1783) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1784) c_~A~0.base))) (concat (concat (concat (select .cse22 .cse2) (select .cse22 .cse3)) (select .cse22 .cse4)) (select .cse22 .cse5))))) (let ((.cse20 (bvadd c_~mts2~0 .cse21 c_~sum~0))) (or (= .cse20 |c_thread1Thread1of1ForFork1_#t~ite5#1|) (not (bvslt (_ bv0 32) .cse20)) (not (bvslt (bvadd c_~mts3~0 .cse21) (_ bv0 32)))))))))) is different from false [2023-12-02 17:59:10,957 INFO L349 Elim1Store]: treesize reduction 168, result has 22.6 percent of original size [2023-12-02 17:59:10,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 3037 treesize of output 2490 [2023-12-02 17:59:11,015 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:59:11,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1817 treesize of output 1655 [2023-12-02 17:59:11,078 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:59:11,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1655 treesize of output 1574 [2023-12-02 17:59:11,134 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:59:11,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1574 treesize of output 1412 [2023-12-02 17:59:11,248 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:59:11,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1412 treesize of output 1331 [2023-12-02 17:59:11,340 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:59:11,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1331 treesize of output 1223 [2023-12-02 17:59:11,402 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:59:11,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1223 treesize of output 1007 [2023-12-02 17:59:11,469 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:59:11,470 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1007 treesize of output 899 [2023-12-02 17:59:11,529 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 17:59:11,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 899 treesize of output 845 [2023-12-02 17:59:33,803 WARN L293 SmtUtils]: Spent 8.70s on a formula simplification that was a NOOP. DAG size: 591 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:00:00,791 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse28 (bvmul (_ bv4 32) c_~M~0))) (let ((.cse0 (= |c_ULTIMATE.start_main_~#t3~0#1.base| c_~A~0.base)) (.cse12 (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_38) v_arrayElimCell_42) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32))))) (.cse5 (= .cse28 (_ bv0 32))) (.cse25 (= c_~A~0.base |c_ULTIMATE.start_main_~#t2~0#1.base|))) (let ((.cse24 (forall ((v_arrayElimCell_70 (_ BitVec 8)) (v_arrayElimCell_72 (_ BitVec 8)) (v_arrayElimCell_71 (_ BitVec 8)) (v_arrayElimCell_73 (_ BitVec 8))) (let ((.cse147 (concat (concat (concat v_arrayElimCell_70 v_arrayElimCell_71) v_arrayElimCell_73) v_arrayElimCell_72))) (or (not (bvslt (_ bv0 32) (bvadd .cse147 c_~mts2~0 c_~sum~0))) (not (bvslt (bvadd .cse147 c_~mts3~0) (_ bv0 32))))))) (.cse27 (not .cse25)) (.cse22 (and (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (not (bvslt (bvadd c_~mts1~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))) (or .cse5 (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32))))) (or .cse5 (and (forall ((v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_42) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) .cse12 (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (not (bvslt (bvadd c_~mts1~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_42) v_arrayElimCell_39)) (_ bv0 32)))) (forall ((v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) (forall ((v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_42) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) (forall ((v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd c_~mts1~0 (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_39)) (_ bv0 32)))))) (or (and (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_38) v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32))))) .cse5) (or (and (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32))))) .cse5))) (.cse23 (not .cse0))) (and (or (and (or .cse0 (and (or (and (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse1 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (or (not (bvslt (_ bv0 32) (bvadd c_~mts2~0 c_~sum~0 .cse1))) (not (bvslt (bvadd c_~mts3~0 .cse1) (_ bv0 32))) (forall ((v_arrayElimCell_38 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32))))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse2 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (or (not (bvslt (_ bv0 32) (bvadd c_~mts2~0 c_~sum~0 .cse2))) (not (bvslt (bvadd c_~mts3~0 .cse2) (_ bv0 32))) (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32))))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse3 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (or (not (bvslt (_ bv0 32) (bvadd c_~mts2~0 c_~sum~0 .cse3))) (forall ((v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (not (bvslt (bvadd c_~mts3~0 .cse3) (_ bv0 32)))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse4 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (or (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_38) v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (not (bvslt (_ bv0 32) (bvadd c_~mts2~0 c_~sum~0 .cse4))) (not (bvslt (bvadd c_~mts3~0 .cse4) (_ bv0 32))))))) .cse5) (or .cse5 (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse7 (concat v_arrayElimCell_40 v_arrayElimCell_41))) (let ((.cse6 (concat (concat .cse7 v_arrayElimCell_45) v_arrayElimCell_43))) (or (not (bvslt (_ bv0 32) (bvadd c_~mts2~0 c_~sum~0 .cse6))) (not (bvslt (bvadd c_~mts3~0 .cse6) (_ bv0 32))) (not (bvslt (bvadd (concat (concat .cse7 v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse8 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (or (not (bvslt (bvadd c_~mts1~0 .cse8) (_ bv0 32))) (not (bvslt (_ bv0 32) (bvadd c_~mts2~0 c_~sum~0 .cse8))) (not (bvslt (bvadd c_~mts3~0 .cse8) (_ bv0 32)))))) (or (and (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse9 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (or (not (bvslt (_ bv0 32) (bvadd c_~mts2~0 c_~sum~0 .cse9))) (not (bvslt (bvadd c_~mts3~0 .cse9) (_ bv0 32))) (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_44 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32))))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse10 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (or (not (bvslt (_ bv0 32) (bvadd c_~mts2~0 c_~sum~0 .cse10))) (not (bvslt (bvadd c_~mts3~0 .cse10) (_ bv0 32))) (forall ((v_arrayElimCell_44 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))))))) .cse5) (or .cse5 (and (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse11 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (or (not (bvslt (_ bv0 32) (bvadd c_~mts2~0 c_~sum~0 .cse11))) (forall ((v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd c_~mts1~0 (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_39)) (_ bv0 32)))) (not (bvslt (bvadd c_~mts3~0 .cse11) (_ bv0 32)))))) (or .cse12 (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse13 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (or (not (bvslt (_ bv0 32) (bvadd c_~mts2~0 c_~sum~0 .cse13))) (not (bvslt (bvadd c_~mts3~0 .cse13) (_ bv0 32))))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse15 (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45))) (let ((.cse14 (concat .cse15 v_arrayElimCell_43))) (or (not (bvslt (_ bv0 32) (bvadd c_~mts2~0 c_~sum~0 .cse14))) (forall ((v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat .cse15 v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) (not (bvslt (bvadd c_~mts3~0 .cse14) (_ bv0 32))))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse16 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (or (not (bvslt (_ bv0 32) (bvadd c_~mts2~0 c_~sum~0 .cse16))) (forall ((v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) (not (bvslt (bvadd c_~mts3~0 .cse16) (_ bv0 32)))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse17 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (or (forall ((v_arrayElimCell_38 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) (not (bvslt (_ bv0 32) (bvadd c_~mts2~0 c_~sum~0 .cse17))) (not (bvslt (bvadd c_~mts3~0 .cse17) (_ bv0 32)))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse18 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (or (not (bvslt (_ bv0 32) (bvadd c_~mts2~0 c_~sum~0 .cse18))) (not (bvslt (bvadd c_~mts3~0 .cse18) (_ bv0 32))) (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_42) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32))))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse20 (concat v_arrayElimCell_40 v_arrayElimCell_41))) (let ((.cse19 (concat (concat .cse20 v_arrayElimCell_45) v_arrayElimCell_43))) (or (not (bvslt (_ bv0 32) (bvadd c_~mts2~0 c_~sum~0 .cse19))) (not (bvslt (bvadd c_~mts3~0 .cse19) (_ bv0 32))) (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd c_~mts1~0 (concat (concat .cse20 v_arrayElimCell_42) v_arrayElimCell_39)) (_ bv0 32)))))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse21 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (or (not (bvslt (_ bv0 32) (bvadd c_~mts2~0 c_~sum~0 .cse21))) (not (bvslt (bvadd c_~mts3~0 .cse21) (_ bv0 32))) (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_42) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32))))))))))) (or .cse22 .cse23 .cse24)) .cse25) (or .cse22 (and (or .cse23 .cse24) (or .cse0 (forall ((v_arrayElimCell_76 (_ BitVec 8)) (v_arrayElimCell_75 (_ BitVec 8)) (v_arrayElimCell_77 (_ BitVec 8)) (v_arrayElimCell_74 (_ BitVec 8))) (let ((.cse26 (concat (concat (concat v_arrayElimCell_74 v_arrayElimCell_75) v_arrayElimCell_77) v_arrayElimCell_76))) (or (not (bvslt (_ bv0 32) (bvadd .cse26 c_~mts2~0 c_~sum~0))) (not (bvslt (bvadd .cse26 c_~mts3~0) (_ bv0 32)))))))) .cse27) (or (not (bvule (bvadd .cse28 c_~A~0.offset) (bvadd .cse28 (_ bv4 32) c_~A~0.offset))) (let ((.cse31 (forall ((v_arrayElimCell_54 (_ BitVec 8)) (v_arrayElimCell_56 (_ BitVec 8)) (v_arrayElimCell_55 (_ BitVec 8)) (v_arrayElimCell_57 (_ BitVec 8))) (let ((.cse146 (concat (concat (concat v_arrayElimCell_54 v_arrayElimCell_55) v_arrayElimCell_57) v_arrayElimCell_56))) (let ((.cse145 (bvadd c_~mts3~0 .cse146))) (or (not (bvslt .cse145 (bvadd .cse146 c_~mts2~0 c_~sum~0))) (bvslt .cse145 (_ bv0 32))))))) (.cse30 (and (forall ((v_arrayElimCell_53 (_ BitVec 8)) (v_arrayElimCell_50 (_ BitVec 8)) (v_arrayElimCell_52 (_ BitVec 8)) (v_arrayElimCell_51 (_ BitVec 8))) (let ((.cse143 (concat (concat (concat v_arrayElimCell_50 v_arrayElimCell_51) v_arrayElimCell_53) v_arrayElimCell_52))) (let ((.cse144 (bvadd .cse143 c_~mts3~0))) (or (= (_ bv0 32) (bvadd .cse143 c_~mts2~0 c_~sum~0)) (= .cse144 (_ bv0 32)) (bvslt .cse144 (_ bv0 32)))))) .cse23)) (.cse29 (forall ((v_arrayElimCell_47 (_ BitVec 8)) (v_arrayElimCell_46 (_ BitVec 8)) (v_arrayElimCell_49 (_ BitVec 8)) (v_arrayElimCell_48 (_ BitVec 8))) (let ((.cse141 (concat (concat (concat v_arrayElimCell_46 v_arrayElimCell_47) v_arrayElimCell_49) v_arrayElimCell_48))) (let ((.cse142 (bvadd c_~mts3~0 .cse141))) (or (= (bvadd .cse141 c_~mts2~0 c_~sum~0) (_ bv0 32)) (= (_ bv0 32) .cse142) (bvslt .cse142 (_ bv0 32))))))) (.cse73 (or .cse22 .cse23))) (and (or (and .cse0 .cse29) .cse30 .cse22 .cse27) (or (and (or .cse22 .cse23 .cse31) (or .cse0 (and (or .cse5 (and (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse33 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse32 (bvadd c_~mts3~0 .cse33))) (or (forall ((v_arrayElimCell_44 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (not (bvslt .cse32 (bvadd c_~mts2~0 c_~sum~0 .cse33))) (bvslt .cse32 (_ bv0 32)))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse35 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse34 (bvadd c_~mts3~0 .cse35))) (or (not (bvslt .cse34 (bvadd c_~mts2~0 c_~sum~0 .cse35))) (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_44 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (bvslt .cse34 (_ bv0 32)))))))) (or (and (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse37 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse36 (bvadd c_~mts3~0 .cse37))) (or (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_38) v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (not (bvslt .cse36 (bvadd c_~mts2~0 c_~sum~0 .cse37))) (bvslt .cse36 (_ bv0 32)))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse39 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse38 (bvadd c_~mts3~0 .cse39))) (or (not (bvslt .cse38 (bvadd c_~mts2~0 c_~sum~0 .cse39))) (forall ((v_arrayElimCell_38 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (bvslt .cse38 (_ bv0 32)))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse41 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse40 (bvadd c_~mts3~0 .cse41))) (or (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (not (bvslt .cse40 (bvadd c_~mts2~0 c_~sum~0 .cse41))) (bvslt .cse40 (_ bv0 32)))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse43 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse42 (bvadd c_~mts3~0 .cse43))) (or (forall ((v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (not (bvslt .cse42 (bvadd c_~mts2~0 c_~sum~0 .cse43))) (bvslt .cse42 (_ bv0 32))))))) .cse5) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse44 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse45 (bvadd c_~mts3~0 .cse44))) (or (not (bvslt (bvadd c_~mts1~0 .cse44) (_ bv0 32))) (not (bvslt .cse45 (bvadd c_~mts2~0 c_~sum~0 .cse44))) (bvslt .cse45 (_ bv0 32)))))) (or .cse5 (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse46 (concat v_arrayElimCell_40 v_arrayElimCell_41))) (let ((.cse48 (concat (concat .cse46 v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse47 (bvadd c_~mts3~0 .cse48))) (or (not (bvslt (bvadd (concat (concat .cse46 v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32))) (not (bvslt .cse47 (bvadd c_~mts2~0 c_~sum~0 .cse48))) (bvslt .cse47 (_ bv0 32)))))))) (or .cse5 (and (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse50 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse49 (bvadd c_~mts3~0 .cse50))) (or (forall ((v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd c_~mts1~0 (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_39)) (_ bv0 32)))) (not (bvslt .cse49 (bvadd c_~mts2~0 c_~sum~0 .cse50))) (bvslt .cse49 (_ bv0 32)))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse53 (concat v_arrayElimCell_40 v_arrayElimCell_41))) (let ((.cse52 (concat (concat .cse53 v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse51 (bvadd c_~mts3~0 .cse52))) (or (not (bvslt .cse51 (bvadd c_~mts2~0 c_~sum~0 .cse52))) (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd c_~mts1~0 (concat (concat .cse53 v_arrayElimCell_42) v_arrayElimCell_39)) (_ bv0 32)))) (bvslt .cse51 (_ bv0 32))))))) (or .cse12 (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse55 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse54 (bvadd c_~mts3~0 .cse55))) (or (not (bvslt .cse54 (bvadd c_~mts2~0 c_~sum~0 .cse55))) (bvslt .cse54 (_ bv0 32))))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse57 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse56 (bvadd c_~mts3~0 .cse57))) (or (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_42) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) (not (bvslt .cse56 (bvadd c_~mts2~0 c_~sum~0 .cse57))) (bvslt .cse56 (_ bv0 32)))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse59 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse58 (bvadd c_~mts3~0 .cse59))) (or (forall ((v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) (not (bvslt .cse58 (bvadd c_~mts2~0 c_~sum~0 .cse59))) (bvslt .cse58 (_ bv0 32)))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse61 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse60 (bvadd c_~mts3~0 .cse61))) (or (not (bvslt .cse60 (bvadd c_~mts2~0 c_~sum~0 .cse61))) (bvslt .cse60 (_ bv0 32)) (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_42) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse62 (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45))) (let ((.cse64 (concat .cse62 v_arrayElimCell_43))) (let ((.cse63 (bvadd c_~mts3~0 .cse64))) (or (forall ((v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat .cse62 v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) (not (bvslt .cse63 (bvadd c_~mts2~0 c_~sum~0 .cse64))) (bvslt .cse63 (_ bv0 32))))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse66 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse65 (bvadd c_~mts3~0 .cse66))) (or (forall ((v_arrayElimCell_38 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) (not (bvslt .cse65 (bvadd c_~mts2~0 c_~sum~0 .cse66))) (bvslt .cse65 (_ bv0 32)))))))))) (or .cse23 .cse31 (and (or .cse5 (and (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse67 (concat v_arrayElimCell_40 v_arrayElimCell_41))) (or (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd c_~mts1~0 (concat (concat .cse67 v_arrayElimCell_42) v_arrayElimCell_39)) (_ bv0 32)))) (bvslt (bvadd c_~mts3~0 (concat (concat .cse67 v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (forall ((v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd c_~mts1~0 (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_39)) (_ bv0 32)))) (bvslt (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (bvslt (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)) (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_42) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))))) (or .cse12 (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (bvslt (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_42) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) (bvslt (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (forall ((v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) (bvslt (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (forall ((v_arrayElimCell_38 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) (bvslt (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse68 (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45))) (or (forall ((v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat .cse68 v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) (bvslt (bvadd c_~mts3~0 (concat .cse68 v_arrayElimCell_43)) (_ bv0 32))))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse69 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (or (not (bvslt (bvadd c_~mts1~0 .cse69) (_ bv0 32))) (bvslt (bvadd c_~mts3~0 .cse69) (_ bv0 32))))) (or .cse5 (and (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (forall ((v_arrayElimCell_38 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (bvslt (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_38) v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (bvslt (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (forall ((v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (bvslt (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (bvslt (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))))) (or .cse5 (and (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (forall ((v_arrayElimCell_44 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (bvslt (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_44 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (bvslt (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))))) (or .cse5 (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse70 (concat v_arrayElimCell_40 v_arrayElimCell_41))) (or (not (bvslt (bvadd (concat (concat .cse70 v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32))) (bvslt (bvadd c_~mts3~0 (concat (concat .cse70 v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32))))))))) .cse25) (or (and (or .cse0 (forall ((v_arrayElimCell_58 (_ BitVec 8)) (v_arrayElimCell_59 (_ BitVec 8)) (v_arrayElimCell_61 (_ BitVec 8)) (v_arrayElimCell_60 (_ BitVec 8))) (let ((.cse72 (concat (concat (concat v_arrayElimCell_58 v_arrayElimCell_59) v_arrayElimCell_61) v_arrayElimCell_60))) (let ((.cse71 (bvadd .cse72 c_~mts3~0))) (or (not (bvslt .cse71 (bvadd .cse72 c_~mts2~0 c_~sum~0))) (bvslt .cse71 (_ bv0 32))))))) (or .cse23 .cse31)) .cse22 .cse27) (or (and .cse73 (or .cse5 (and (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (= (bvadd c_~mts2~0 c_~sum~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)) (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_42) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (forall ((v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) (= (bvadd c_~mts2~0 c_~sum~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse74 (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45))) (or (forall ((v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat .cse74 v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) (= (bvadd c_~mts2~0 c_~sum~0 (concat .cse74 v_arrayElimCell_43)) (_ bv0 32))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (forall ((v_arrayElimCell_38 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) (= (bvadd c_~mts2~0 c_~sum~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))) (or .cse12 (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (= (bvadd c_~mts2~0 c_~sum~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse75 (concat v_arrayElimCell_40 v_arrayElimCell_41))) (or (= (bvadd c_~mts2~0 c_~sum~0 (concat (concat .cse75 v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)) (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd c_~mts1~0 (concat (concat .cse75 v_arrayElimCell_42) v_arrayElimCell_39)) (_ bv0 32))))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (forall ((v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd c_~mts1~0 (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_39)) (_ bv0 32)))) (= (bvadd c_~mts2~0 c_~sum~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (= (bvadd c_~mts2~0 c_~sum~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)) (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_42) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))))))) (or .cse5 (and (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (forall ((v_arrayElimCell_44 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (= (bvadd c_~mts2~0 c_~sum~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (= (bvadd c_~mts2~0 c_~sum~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)) (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_44 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse76 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (or (not (bvslt (bvadd c_~mts1~0 .cse76) (_ bv0 32))) (= (bvadd c_~mts2~0 c_~sum~0 .cse76) (_ bv0 32))))) (or .cse5 (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse77 (concat v_arrayElimCell_40 v_arrayElimCell_41))) (or (not (bvslt (bvadd (concat (concat .cse77 v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32))) (= (bvadd c_~mts2~0 c_~sum~0 (concat (concat .cse77 v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))))) (or (and (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (= (bvadd c_~mts2~0 c_~sum~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_38) v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (= (bvadd c_~mts2~0 c_~sum~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (= (bvadd c_~mts2~0 c_~sum~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)) (forall ((v_arrayElimCell_38 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (forall ((v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (= (bvadd c_~mts2~0 c_~sum~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32))))) .cse5)) (and (or .cse30 (and (or .cse0 .cse27) (or .cse23 .cse29))) (or .cse23 .cse25 .cse29))) (or (and (or (and (forall ((v_arrayElimCell_65 (_ BitVec 8)) (v_arrayElimCell_64 (_ BitVec 8)) (v_arrayElimCell_63 (_ BitVec 8)) (v_arrayElimCell_62 (_ BitVec 8))) (let ((.cse79 (concat (concat (concat v_arrayElimCell_62 v_arrayElimCell_63) v_arrayElimCell_65) v_arrayElimCell_64))) (let ((.cse78 (bvadd c_~mts3~0 .cse79))) (or (= (_ bv0 32) .cse78) (bvslt .cse78 (bvadd .cse79 c_~mts2~0 c_~sum~0)) (bvslt .cse78 (_ bv0 32)))))) .cse25) (and (or .cse5 (and (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse80 (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45))) (let ((.cse82 (concat .cse80 v_arrayElimCell_43))) (let ((.cse81 (bvadd c_~mts3~0 .cse82))) (or (forall ((v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat .cse80 v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) (bvslt .cse81 (bvadd c_~mts2~0 c_~sum~0 .cse82)) (= .cse81 (_ bv0 32)) (bvslt .cse81 (_ bv0 32))))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse84 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse83 (bvadd c_~mts3~0 .cse84))) (or (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_42) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) (bvslt .cse83 (bvadd c_~mts2~0 c_~sum~0 .cse84)) (= .cse83 (_ bv0 32)) (bvslt .cse83 (_ bv0 32)))))) (or .cse12 (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse86 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse85 (bvadd c_~mts3~0 .cse86))) (or (bvslt .cse85 (bvadd c_~mts2~0 c_~sum~0 .cse86)) (= .cse85 (_ bv0 32)) (bvslt .cse85 (_ bv0 32))))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse88 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse87 (bvadd c_~mts3~0 .cse88))) (or (forall ((v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd c_~mts1~0 (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_39)) (_ bv0 32)))) (bvslt .cse87 (bvadd c_~mts2~0 c_~sum~0 .cse88)) (= .cse87 (_ bv0 32)) (bvslt .cse87 (_ bv0 32)))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse89 (concat v_arrayElimCell_40 v_arrayElimCell_41))) (let ((.cse91 (concat (concat .cse89 v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse90 (bvadd c_~mts3~0 .cse91))) (or (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd c_~mts1~0 (concat (concat .cse89 v_arrayElimCell_42) v_arrayElimCell_39)) (_ bv0 32)))) (bvslt .cse90 (bvadd c_~mts2~0 c_~sum~0 .cse91)) (= .cse90 (_ bv0 32)) (bvslt .cse90 (_ bv0 32))))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse93 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse92 (bvadd c_~mts3~0 .cse93))) (or (bvslt .cse92 (bvadd c_~mts2~0 c_~sum~0 .cse93)) (= .cse92 (_ bv0 32)) (bvslt .cse92 (_ bv0 32)) (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_42) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse95 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse94 (bvadd c_~mts3~0 .cse95))) (or (forall ((v_arrayElimCell_38 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) (bvslt .cse94 (bvadd c_~mts2~0 c_~sum~0 .cse95)) (= .cse94 (_ bv0 32)) (bvslt .cse94 (_ bv0 32)))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse97 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse96 (bvadd c_~mts3~0 .cse97))) (or (forall ((v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) (bvslt .cse96 (bvadd c_~mts2~0 c_~sum~0 .cse97)) (= .cse96 (_ bv0 32)) (bvslt .cse96 (_ bv0 32)))))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse98 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse99 (bvadd c_~mts3~0 .cse98))) (or (not (bvslt (bvadd c_~mts1~0 .cse98) (_ bv0 32))) (bvslt .cse99 (bvadd c_~mts2~0 c_~sum~0 .cse98)) (= .cse99 (_ bv0 32)) (bvslt .cse99 (_ bv0 32)))))) (or (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse100 (concat v_arrayElimCell_40 v_arrayElimCell_41))) (let ((.cse102 (concat (concat .cse100 v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse101 (bvadd c_~mts3~0 .cse102))) (or (not (bvslt (bvadd (concat (concat .cse100 v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32))) (bvslt .cse101 (bvadd c_~mts2~0 c_~sum~0 .cse102)) (= .cse101 (_ bv0 32)) (bvslt .cse101 (_ bv0 32))))))) .cse5) (or (and (or .cse5 (and (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (forall ((v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (= (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (forall ((v_arrayElimCell_38 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (= (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_38) v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (= (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (= (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))))) (or .cse5 (and (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse103 (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45))) (or (forall ((v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat .cse103 v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) (= (bvadd c_~mts3~0 (concat .cse103 v_arrayElimCell_43)) (_ bv0 32))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse104 (concat v_arrayElimCell_40 v_arrayElimCell_41))) (or (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd c_~mts1~0 (concat (concat .cse104 v_arrayElimCell_42) v_arrayElimCell_39)) (_ bv0 32)))) (= (bvadd c_~mts3~0 (concat (concat .cse104 v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (forall ((v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd c_~mts1~0 (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_39)) (_ bv0 32)))) (= (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (forall ((v_arrayElimCell_38 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) (= (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_42) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) (= (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))) (or .cse12 (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (= (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (forall ((v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) (= (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (= (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)) (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_42) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))))))) (or (and (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (forall ((v_arrayElimCell_44 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (= (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (or (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_44 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (= (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32))))) .cse5) (or .cse5 (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse105 (concat v_arrayElimCell_40 v_arrayElimCell_41))) (or (not (bvslt (bvadd (concat (concat .cse105 v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32))) (= (bvadd c_~mts3~0 (concat (concat .cse105 v_arrayElimCell_45) v_arrayElimCell_43)) (_ bv0 32)))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse106 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (or (not (bvslt (bvadd c_~mts1~0 .cse106) (_ bv0 32))) (= (bvadd c_~mts3~0 .cse106) (_ bv0 32)))))) .cse27) (or .cse22 .cse27) (or .cse5 (and (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse108 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse107 (bvadd c_~mts3~0 .cse108))) (or (forall ((v_arrayElimCell_44 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (bvslt .cse107 (bvadd c_~mts2~0 c_~sum~0 .cse108)) (= .cse107 (_ bv0 32)) (bvslt .cse107 (_ bv0 32)))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse110 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse109 (bvadd c_~mts3~0 .cse110))) (or (bvslt .cse109 (bvadd c_~mts2~0 c_~sum~0 .cse110)) (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_44 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (= .cse109 (_ bv0 32)) (bvslt .cse109 (_ bv0 32)))))))) (or .cse5 (and (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse112 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse111 (bvadd c_~mts3~0 .cse112))) (or (forall ((v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (bvslt .cse111 (bvadd c_~mts2~0 c_~sum~0 .cse112)) (= .cse111 (_ bv0 32)) (bvslt .cse111 (_ bv0 32)))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse114 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse113 (bvadd c_~mts3~0 .cse114))) (or (forall ((v_arrayElimCell_38 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (bvslt .cse113 (bvadd c_~mts2~0 c_~sum~0 .cse114)) (= .cse113 (_ bv0 32)) (bvslt .cse113 (_ bv0 32)))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse116 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse115 (bvadd c_~mts3~0 .cse116))) (or (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (bvslt .cse115 (bvadd c_~mts2~0 c_~sum~0 .cse116)) (= .cse115 (_ bv0 32)) (bvslt .cse115 (_ bv0 32)))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse118 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse117 (bvadd c_~mts3~0 .cse118))) (or (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_38) v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (bvslt .cse117 (bvadd c_~mts2~0 c_~sum~0 .cse118)) (= .cse117 (_ bv0 32)) (bvslt .cse117 (_ bv0 32)))))))) (or .cse27 (and (or .cse5 (and (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse119 (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)))) (or (forall ((v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) (= .cse119 (_ bv0 32)) (bvslt .cse119 (_ bv0 32))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse120 (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)))) (or (= .cse120 (_ bv0 32)) (bvslt .cse120 (_ bv0 32)) (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_42) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32))))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse121 (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)))) (or (forall ((v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd c_~mts1~0 (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_39)) (_ bv0 32)))) (= .cse121 (_ bv0 32)) (bvslt .cse121 (_ bv0 32))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse122 (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)))) (or (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_42) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) (= .cse122 (_ bv0 32)) (bvslt .cse122 (_ bv0 32))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse123 (concat v_arrayElimCell_40 v_arrayElimCell_41))) (let ((.cse124 (bvadd c_~mts3~0 (concat (concat .cse123 v_arrayElimCell_45) v_arrayElimCell_43)))) (or (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd c_~mts1~0 (concat (concat .cse123 v_arrayElimCell_42) v_arrayElimCell_39)) (_ bv0 32)))) (= .cse124 (_ bv0 32)) (bvslt .cse124 (_ bv0 32)))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse125 (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45))) (let ((.cse126 (bvadd c_~mts3~0 (concat .cse125 v_arrayElimCell_43)))) (or (forall ((v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat .cse125 v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) (= .cse126 (_ bv0 32)) (bvslt .cse126 (_ bv0 32)))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse127 (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)))) (or (forall ((v_arrayElimCell_38 (_ BitVec 8)) (v_arrayElimCell_39 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_39) c_~mts1~0) (_ bv0 32)))) (= .cse127 (_ bv0 32)) (bvslt .cse127 (_ bv0 32))))) (or .cse12 (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse128 (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)))) (or (= .cse128 (_ bv0 32)) (bvslt .cse128 (_ bv0 32)))))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse129 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43))) (let ((.cse130 (bvadd c_~mts3~0 .cse129))) (or (not (bvslt (bvadd c_~mts1~0 .cse129) (_ bv0 32))) (= .cse130 (_ bv0 32)) (bvslt .cse130 (_ bv0 32)))))) (or (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse131 (concat v_arrayElimCell_40 v_arrayElimCell_41))) (let ((.cse132 (bvadd c_~mts3~0 (concat (concat .cse131 v_arrayElimCell_45) v_arrayElimCell_43)))) (or (not (bvslt (bvadd (concat (concat .cse131 v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32))) (= .cse132 (_ bv0 32)) (bvslt .cse132 (_ bv0 32)))))) .cse5) (or .cse5 (and (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse133 (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)))) (or (forall ((v_arrayElimCell_44 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (= .cse133 (_ bv0 32)) (bvslt .cse133 (_ bv0 32))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse134 (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)))) (or (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_44 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_41) v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (= .cse134 (_ bv0 32)) (bvslt .cse134 (_ bv0 32))))))) (or .cse5 (and (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse135 (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)))) (or (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (= .cse135 (_ bv0 32)) (bvslt .cse135 (_ bv0 32))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse136 (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)))) (or (forall ((v_arrayElimCell_42 (_ BitVec 8)) (v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_38) v_arrayElimCell_42) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (= .cse136 (_ bv0 32)) (bvslt .cse136 (_ bv0 32))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse137 (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)))) (or (forall ((v_arrayElimCell_38 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (= .cse137 (_ bv0 32)) (bvslt .cse137 (_ bv0 32))))) (forall ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_45 (_ BitVec 8)) (v_arrayElimCell_41 (_ BitVec 8)) (v_arrayElimCell_40 (_ BitVec 8))) (let ((.cse138 (bvadd c_~mts3~0 (concat (concat (concat v_arrayElimCell_40 v_arrayElimCell_41) v_arrayElimCell_45) v_arrayElimCell_43)))) (or (forall ((v_arrayElimCell_44 (_ BitVec 8)) (v_arrayElimCell_38 (_ BitVec 8))) (not (bvslt (bvadd (concat (concat (concat v_arrayElimCell_44 v_arrayElimCell_38) v_arrayElimCell_45) v_arrayElimCell_43) c_~mts1~0) (_ bv0 32)))) (= .cse138 (_ bv0 32)) (bvslt .cse138 (_ bv0 32))))))))))) .cse73) (and .cse0 (forall ((v_arrayElimCell_67 (_ BitVec 8)) (v_arrayElimCell_66 (_ BitVec 8)) (v_arrayElimCell_69 (_ BitVec 8)) (v_arrayElimCell_68 (_ BitVec 8))) (let ((.cse140 (concat (concat (concat v_arrayElimCell_66 v_arrayElimCell_67) v_arrayElimCell_69) v_arrayElimCell_68))) (let ((.cse139 (bvadd .cse140 c_~mts3~0))) (or (bvslt .cse139 (bvadd .cse140 c_~mts2~0 c_~sum~0)) (bvslt .cse139 (_ bv0 32)) (= .cse139 (_ bv0 32))))))))))))))) is different from true [2023-12-02 18:00:48,918 WARN L293 SmtUtils]: Spent 17.64s on a formula simplification that was a NOOP. DAG size: 617 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:01:22,569 WARN L293 SmtUtils]: Spent 16.12s on a formula simplification that was a NOOP. DAG size: 619 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:02:03,396 WARN L293 SmtUtils]: Spent 19.65s on a formula simplification that was a NOOP. DAG size: 621 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:02:03,420 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2023-12-02 18:02:03,421 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 18:02:03,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1365822890] [2023-12-02 18:02:03,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1365822890] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:02:03,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1960061016] [2023-12-02 18:02:03,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:02:03,421 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 18:02:03,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 18:02:03,422 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 18:02:03,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44ce0368-50be-44fb-a380-54761cde01fc/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2023-12-02 18:02:03,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:02:03,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-02 18:02:04,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:02:05,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2023-12-02 18:02:07,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:02:07,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2023-12-02 18:02:11,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:02:11,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 41 [2023-12-02 18:02:14,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:02:14,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 41 [2023-12-02 18:02:16,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:02:16,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:02:16,359 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:02:16,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:02:16,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:02:16,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:02:16,372 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:02:16,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:02:16,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:02:16,381 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:02:16,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:02:16,386 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:02:16,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 219 treesize of output 83 [2023-12-02 18:02:16,876 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:02:16,877 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:02:17,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 195 treesize of output 193 [2023-12-02 18:02:17,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 191 [2023-12-02 18:02:41,793 WARN L854 $PredicateComparison]: unable to prove that (or (let ((.cse1 (bvmul (_ bv4 32) c_~M~0))) (let ((.cse6 (bvadd .cse1 (_ bv3 32) c_~A~0.offset)) (.cse7 (bvadd .cse1 (_ bv2 32) c_~A~0.offset)) (.cse8 (bvadd .cse1 c_~A~0.offset (_ bv1 32))) (.cse0 (bvadd .cse1 c_~A~0.offset))) (and (or (not (bvule .cse0 (bvadd .cse1 (_ bv4 32) c_~A~0.offset))) (and (forall ((v_ArrVal_1817 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse4 (let ((.cse5 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1817) c_~A~0.base))) (concat (concat (concat (select .cse5 .cse6) (select .cse5 .cse7)) (select .cse5 .cse8)) (select .cse5 .cse0))))) (let ((.cse3 (bvadd .cse4 c_~mts2~0 c_~sum~0)) (.cse2 (bvadd .cse4 c_~mts3~0))) (or (not (bvslt .cse2 .cse3)) (= .cse3 c_~mts1~0) (bvslt .cse2 (_ bv0 32)))))) (forall ((v_ArrVal_1817 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse10 (let ((.cse11 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1817) c_~A~0.base))) (concat (concat (concat (select .cse11 .cse6) (select .cse11 .cse7)) (select .cse11 .cse8)) (select .cse11 .cse0))))) (let ((.cse9 (bvadd .cse10 c_~mts3~0))) (or (bvslt .cse9 (bvadd .cse10 c_~mts2~0 c_~sum~0)) (bvslt .cse9 (_ bv0 32)) (= .cse9 c_~mts1~0))))) (forall ((v_ArrVal_1817 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse12 (let ((.cse14 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1817) c_~A~0.base))) (concat (concat (concat (select .cse14 .cse6) (select .cse14 .cse7)) (select .cse14 .cse8)) (select .cse14 .cse0))))) (let ((.cse13 (bvadd .cse12 c_~mts3~0))) (or (= (bvadd .cse12 c_~mts2~0 c_~sum~0) c_~mts1~0) (bvslt .cse13 (_ bv0 32)) (= .cse13 c_~mts1~0))))))) (forall ((v_ArrVal_1817 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse16 (let ((.cse17 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1817) c_~A~0.base))) (concat (concat (concat (select .cse17 .cse6) (select .cse17 .cse7)) (select .cse17 .cse8)) (select .cse17 .cse0))))) (let ((.cse15 (bvadd .cse16 c_~mts2~0 c_~sum~0))) (or (= .cse15 c_~mts1~0) (not (bvslt (bvadd .cse16 c_~mts3~0) (_ bv0 32))) (not (bvslt (_ bv0 32) .cse15)))))) (or (= c_~mts1~0 (_ bv0 32)) (and (forall ((v_ArrVal_1817 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse18 (let ((.cse19 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1817) c_~A~0.base))) (concat (concat (concat (select .cse19 .cse6) (select .cse19 .cse7)) (select .cse19 .cse8)) (select .cse19 .cse0))))) (or (= (bvadd .cse18 c_~mts2~0 c_~sum~0) c_~mts1~0) (not (bvslt (bvadd .cse18 c_~mts3~0) (_ bv0 32)))))) (forall ((v_ArrVal_1817 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse20 (let ((.cse21 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1817) c_~A~0.base))) (concat (concat (concat (select .cse21 .cse6) (select .cse21 .cse7)) (select .cse21 .cse8)) (select .cse21 .cse0))))) (or (bvslt (_ bv0 32) (bvadd .cse20 c_~mts2~0 c_~sum~0)) (not (bvslt (bvadd .cse20 c_~mts3~0) (_ bv0 32))))))))))) (bvslt |c_thread2Thread1of1ForFork0_~i~1#1| c_~M~0) (not (bvslt c_~M~0 c_~N~0))) is different from false [2023-12-02 18:03:13,767 WARN L854 $PredicateComparison]: unable to prove that (or (let ((.cse15 (bvmul (_ bv4 32) c_~M~0))) (let ((.cse2 (bvadd .cse15 (_ bv3 32) c_~A~0.offset)) (.cse3 (bvadd .cse15 (_ bv2 32) c_~A~0.offset)) (.cse4 (bvadd .cse15 c_~A~0.offset (_ bv1 32))) (.cse5 (bvadd .cse15 c_~A~0.offset))) (and (forall ((v_ArrVal_1817 (Array (_ BitVec 32) (_ BitVec 8))) (v_ArrVal_1816 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse0 (let ((.cse1 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1816) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1817) c_~A~0.base))) (concat (concat (concat (select .cse1 .cse2) (select .cse1 .cse3)) (select .cse1 .cse4)) (select .cse1 .cse5))))) (or (not (bvslt (_ bv0 32) (bvadd .cse0 c_~mts2~0 c_~sum~0))) (not (bvslt (bvadd .cse0 c_~mts3~0) (_ bv0 32)))))) (or (and (forall ((v_ArrVal_1817 (Array (_ BitVec 32) (_ BitVec 8))) (v_ArrVal_1816 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse7 (let ((.cse8 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1816) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1817) c_~A~0.base))) (concat (concat (concat (select .cse8 .cse2) (select .cse8 .cse3)) (select .cse8 .cse4)) (select .cse8 .cse5))))) (let ((.cse6 (bvadd .cse7 c_~mts3~0))) (or (= .cse6 (_ bv0 32)) (bvslt .cse6 (_ bv0 32)) (= (_ bv0 32) (bvadd .cse7 c_~mts2~0 c_~sum~0)))))) (forall ((v_ArrVal_1817 (Array (_ BitVec 32) (_ BitVec 8))) (v_ArrVal_1816 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse10 (let ((.cse11 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1816) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1817) c_~A~0.base))) (concat (concat (concat (select .cse11 .cse2) (select .cse11 .cse3)) (select .cse11 .cse4)) (select .cse11 .cse5))))) (let ((.cse9 (bvadd .cse10 c_~mts3~0))) (or (not (bvslt .cse9 (bvadd .cse10 c_~mts2~0 c_~sum~0))) (bvslt .cse9 (_ bv0 32)))))) (forall ((v_ArrVal_1817 (Array (_ BitVec 32) (_ BitVec 8))) (v_ArrVal_1816 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse13 (let ((.cse14 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1816) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1817) c_~A~0.base))) (concat (concat (concat (select .cse14 .cse2) (select .cse14 .cse3)) (select .cse14 .cse4)) (select .cse14 .cse5))))) (let ((.cse12 (bvadd .cse13 c_~mts3~0))) (or (= .cse12 (_ bv0 32)) (bvslt .cse12 (_ bv0 32)) (bvslt .cse12 (bvadd .cse13 c_~mts2~0 c_~sum~0))))))) (not (bvule .cse5 (bvadd .cse15 (_ bv4 32) c_~A~0.offset))))))) (bvslt (_ bv0 32) c_~M~0) (not (bvslt |c_thread1Thread1of1ForFork1_#t~ret3#1| (_ bv0 32))) (not (bvslt c_~M~0 c_~N~0))) is different from false [2023-12-02 18:03:34,760 WARN L854 $PredicateComparison]: unable to prove that (or (bvslt (_ bv0 32) c_~M~0) (let ((.cse11 (bvmul (_ bv4 32) c_~M~0))) (let ((.cse8 (bvadd (_ bv3 32) c_~A~0.offset)) (.cse9 (bvadd (_ bv2 32) c_~A~0.offset)) (.cse10 (bvadd c_~A~0.offset (_ bv1 32))) (.cse2 (bvadd .cse11 (_ bv3 32) c_~A~0.offset)) (.cse3 (bvadd .cse11 (_ bv2 32) c_~A~0.offset)) (.cse4 (bvadd .cse11 c_~A~0.offset (_ bv1 32))) (.cse5 (bvadd .cse11 c_~A~0.offset))) (and (forall ((v_ArrVal_1815 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse6 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1815))) (or (forall ((v_ArrVal_1817 (Array (_ BitVec 32) (_ BitVec 8))) (v_ArrVal_1816 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse0 (let ((.cse1 (select (store (store .cse6 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1816) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1817) c_~A~0.base))) (concat (concat (concat (select .cse1 .cse2) (select .cse1 .cse3)) (select .cse1 .cse4)) (select .cse1 .cse5))))) (or (not (bvslt (_ bv0 32) (bvadd c_~mts2~0 .cse0 c_~sum~0))) (not (bvslt (bvadd c_~mts3~0 .cse0) (_ bv0 32)))))) (not (bvslt (bvadd (let ((.cse7 (select .cse6 c_~A~0.base))) (concat (concat (concat (select .cse7 .cse8) (select .cse7 .cse9)) (select .cse7 .cse10)) (select .cse7 c_~A~0.offset))) c_~mts1~0) (_ bv0 32)))))) (or (not (bvule .cse5 (bvadd .cse11 (_ bv4 32) c_~A~0.offset))) (and (forall ((v_ArrVal_1815 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse15 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1815))) (or (forall ((v_ArrVal_1817 (Array (_ BitVec 32) (_ BitVec 8))) (v_ArrVal_1816 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse13 (let ((.cse14 (select (store (store .cse15 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1816) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1817) c_~A~0.base))) (concat (concat (concat (select .cse14 .cse2) (select .cse14 .cse3)) (select .cse14 .cse4)) (select .cse14 .cse5))))) (let ((.cse12 (bvadd c_~mts3~0 .cse13))) (or (bvslt .cse12 (bvadd c_~mts2~0 .cse13 c_~sum~0)) (bvslt .cse12 (_ bv0 32)) (= (_ bv0 32) .cse12))))) (not (bvslt (bvadd (let ((.cse16 (select .cse15 c_~A~0.base))) (concat (concat (concat (select .cse16 .cse8) (select .cse16 .cse9)) (select .cse16 .cse10)) (select .cse16 c_~A~0.offset))) c_~mts1~0) (_ bv0 32)))))) (forall ((v_ArrVal_1815 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse18 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1815))) (or (not (bvslt (bvadd (let ((.cse17 (select .cse18 c_~A~0.base))) (concat (concat (concat (select .cse17 .cse8) (select .cse17 .cse9)) (select .cse17 .cse10)) (select .cse17 c_~A~0.offset))) c_~mts1~0) (_ bv0 32))) (forall ((v_ArrVal_1817 (Array (_ BitVec 32) (_ BitVec 8))) (v_ArrVal_1816 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse20 (let ((.cse21 (select (store (store .cse18 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1816) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1817) c_~A~0.base))) (concat (concat (concat (select .cse21 .cse2) (select .cse21 .cse3)) (select .cse21 .cse4)) (select .cse21 .cse5))))) (let ((.cse19 (bvadd c_~mts3~0 .cse20))) (or (bvslt .cse19 (_ bv0 32)) (= (_ bv0 32) .cse19) (= (bvadd c_~mts2~0 .cse20 c_~sum~0) (_ bv0 32))))))))) (forall ((v_ArrVal_1815 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse23 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_1815))) (or (not (bvslt (bvadd (let ((.cse22 (select .cse23 c_~A~0.base))) (concat (concat (concat (select .cse22 .cse8) (select .cse22 .cse9)) (select .cse22 .cse10)) (select .cse22 c_~A~0.offset))) c_~mts1~0) (_ bv0 32))) (forall ((v_ArrVal_1817 (Array (_ BitVec 32) (_ BitVec 8))) (v_ArrVal_1816 (Array (_ BitVec 32) (_ BitVec 8)))) (let ((.cse25 (let ((.cse26 (select (store (store .cse23 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1816) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1817) c_~A~0.base))) (concat (concat (concat (select .cse26 .cse2) (select .cse26 .cse3)) (select .cse26 .cse4)) (select .cse26 .cse5))))) (let ((.cse24 (bvadd c_~mts3~0 .cse25))) (or (bvslt .cse24 (_ bv0 32)) (not (bvslt .cse24 (bvadd c_~mts2~0 .cse25 c_~sum~0))))))))))))))) (not (bvslt c_~M~0 c_~N~0))) is different from false [2023-12-02 18:03:46,958 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:03:46,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 682 treesize of output 268 [2023-12-02 18:03:47,858 INFO L349 Elim1Store]: treesize reduction 412, result has 11.0 percent of original size [2023-12-02 18:03:47,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 1708 treesize of output 1570 [2023-12-02 18:03:47,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 719 treesize of output 503 [2023-12-02 18:03:48,226 INFO L349 Elim1Store]: treesize reduction 156, result has 9.8 percent of original size [2023-12-02 18:03:48,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 551 treesize of output 499 [2023-12-02 18:03:48,281 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:03:48,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 449 treesize of output 341 [2023-12-02 18:03:52,091 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:03:52,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 916 treesize of output 346 [2023-12-02 18:03:52,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:03:52,114 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:52,121 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:52,122 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:52,123 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:52,124 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:52,131 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:52,133 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:52,140 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:52,141 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:52,142 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:52,142 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:52,143 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:52,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:03:52,147 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:52,149 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:52,150 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:52,151 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:52,153 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:52,154 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:52,155 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:52,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:03:52,165 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:52,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:03:52,630 INFO L349 Elim1Store]: treesize reduction 32, result has 61.4 percent of original size [2023-12-02 18:03:52,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 18 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 8795 treesize of output 7957 [2023-12-02 18:03:52,705 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:52,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:03:52,711 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:52,711 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:52,712 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:52,713 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:52,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:03:52,718 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:52,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:03:52,724 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:52,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:03:52,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 825 treesize of output 730 [2023-12-02 18:03:52,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 882 treesize of output 558 [2023-12-02 18:03:52,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 479 treesize of output 317 [2023-12-02 18:03:57,128 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:03:57,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 1153 treesize of output 427 [2023-12-02 18:03:57,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:03:57,157 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:57,164 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:57,165 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:57,166 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:57,167 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:57,176 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:57,177 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:57,185 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:57,186 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:57,187 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:57,188 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:57,189 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:57,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:03:57,193 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:57,194 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:57,196 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:57,197 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:57,199 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:57,200 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:57,201 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:57,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:03:57,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:03:57,216 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:57,722 INFO L349 Elim1Store]: treesize reduction 32, result has 61.4 percent of original size [2023-12-02 18:03:57,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 18 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 11855 treesize of output 10737 [2023-12-02 18:03:57,826 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:57,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:03:57,838 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:57,839 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:57,839 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:57,840 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:57,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:03:57,847 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:57,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:03:57,855 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:03:57,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:03:57,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 646 treesize of output 524 [2023-12-02 18:03:57,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 1192 treesize of output 760 [2023-12-02 18:03:57,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 487 treesize of output 271 [2023-12-02 18:04:26,207 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 18:04:26,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 918 treesize of output 348 [2023-12-02 18:04:26,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:04:26,232 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:04:26,238 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:04:26,239 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:04:26,240 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:04:26,241 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:04:26,248 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:04:26,250 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:04:26,257 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:04:26,258 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:04:26,259 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:04:26,260 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:04:26,260 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:04:26,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:04:26,265 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:04:26,267 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:04:26,268 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:04:26,269 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:04:26,271 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:04:26,272 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:04:26,273 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:04:26,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:04:26,285 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:04:26,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:04:26,701 INFO L349 Elim1Store]: treesize reduction 32, result has 61.4 percent of original size [2023-12-02 18:04:26,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 18 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 1263 treesize of output 1160 [2023-12-02 18:04:26,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 1047 treesize of output 723 [2023-12-02 18:04:26,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 723 treesize of output 561 [2023-12-02 18:04:26,848 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:04:26,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:04:26,854 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:04:26,855 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:04:26,856 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:04:26,857 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:04:26,857 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:04:26,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:04:26,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:04:26,869 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 18:04:26,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 18:04:26,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 368 treesize of output 273