./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ntdrivers/floppy.i.cil-3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers/floppy.i.cil-3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 13096ecc896a778cf08851ae14dc5c7b87ba00c42e74b90edd25cd2cb7c21f17 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:04:25,010 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:04:25,075 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-12-02 17:04:25,079 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:04:25,080 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:04:25,105 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:04:25,106 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:04:25,106 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:04:25,107 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:04:25,108 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:04:25,108 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:04:25,109 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:04:25,109 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:04:25,110 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 17:04:25,110 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:04:25,111 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:04:25,111 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 17:04:25,112 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 17:04:25,112 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:04:25,113 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 17:04:25,113 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 17:04:25,114 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 17:04:25,115 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 17:04:25,115 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 17:04:25,116 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:04:25,116 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 17:04:25,117 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 17:04:25,117 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 17:04:25,118 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:04:25,118 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 17:04:25,118 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 17:04:25,119 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-12-02 17:04:25,119 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:04:25,119 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 17:04:25,119 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 17:04:25,120 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 17:04:25,120 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:04:25,120 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:04:25,120 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:04:25,120 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:04:25,121 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:04:25,121 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:04:25,121 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:04:25,121 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 17:04:25,122 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 17:04:25,122 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:04:25,122 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:04:25,122 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:04:25,122 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_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13096ecc896a778cf08851ae14dc5c7b87ba00c42e74b90edd25cd2cb7c21f17 [2023-12-02 17:04:25,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:04:25,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:04:25,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:04:25,357 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:04:25,357 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:04:25,359 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ntdrivers/floppy.i.cil-3.c [2023-12-02 17:04:28,104 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:04:28,484 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:04:28,485 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/sv-benchmarks/c/ntdrivers/floppy.i.cil-3.c [2023-12-02 17:04:28,520 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/data/7fe3a4932/2d59ef02e6954a1594a25788a08c48c0/FLAG94040d1d1 [2023-12-02 17:04:28,656 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/data/7fe3a4932/2d59ef02e6954a1594a25788a08c48c0 [2023-12-02 17:04:28,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:04:28,659 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:04:28,661 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:04:28,661 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:04:28,665 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:04:28,666 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:04:28" (1/1) ... [2023-12-02 17:04:28,667 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4efbf003 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:04:28, skipping insertion in model container [2023-12-02 17:04:28,667 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:04:28" (1/1) ... [2023-12-02 17:04:28,811 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:04:29,660 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-12-02 17:04:29,971 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:04:30,009 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 17:04:30,010 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4e199379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:04:30, skipping insertion in model container [2023-12-02 17:04:30,010 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:04:30,010 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-12-02 17:04:30,012 INFO L158 Benchmark]: Toolchain (without parser) took 1351.75ms. Allocated memory is still 190.8MB. Free memory was 140.6MB in the beginning and 127.7MB in the end (delta: 12.9MB). Peak memory consumption was 79.9MB. Max. memory is 16.1GB. [2023-12-02 17:04:30,012 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 107.0MB. Free memory is still 59.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 17:04:30,013 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1349.51ms. Allocated memory is still 190.8MB. Free memory was 140.1MB in the beginning and 127.7MB in the end (delta: 12.4MB). Peak memory consumption was 79.9MB. Max. memory is 16.1GB. [2023-12-02 17:04:30,014 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 107.0MB. Free memory is still 59.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1349.51ms. Allocated memory is still 190.8MB. Free memory was 140.1MB in the beginning and 127.7MB in the end (delta: 12.4MB). Peak memory consumption was 79.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2246]: 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers/floppy.i.cil-3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 13096ecc896a778cf08851ae14dc5c7b87ba00c42e74b90edd25cd2cb7c21f17 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:04:31,698 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:04:31,767 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-12-02 17:04:31,773 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:04:31,773 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:04:31,807 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:04:31,808 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:04:31,808 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:04:31,809 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:04:31,809 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:04:31,810 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:04:31,811 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:04:31,811 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:04:31,812 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:04:31,812 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:04:31,813 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:04:31,813 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 17:04:31,814 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 17:04:31,814 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:04:31,815 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 17:04:31,815 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 17:04:31,816 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 17:04:31,817 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:04:31,817 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 17:04:31,817 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 17:04:31,818 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-12-02 17:04:31,818 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:04:31,819 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 17:04:31,819 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 17:04:31,819 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 17:04:31,820 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 17:04:31,820 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 17:04:31,820 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:04:31,821 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:04:31,821 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 17:04:31,821 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:04:31,822 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:04:31,822 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:04:31,822 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:04:31,822 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:04:31,822 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 17:04:31,823 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 17:04:31,823 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:04:31,823 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:04:31,823 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:04:31,824 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_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13096ecc896a778cf08851ae14dc5c7b87ba00c42e74b90edd25cd2cb7c21f17 [2023-12-02 17:04:32,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:04:32,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:04:32,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:04:32,127 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:04:32,128 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:04:32,129 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ntdrivers/floppy.i.cil-3.c [2023-12-02 17:04:34,900 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:04:35,309 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:04:35,310 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/sv-benchmarks/c/ntdrivers/floppy.i.cil-3.c [2023-12-02 17:04:35,341 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/data/24d7b3103/f4286fc13624449aa952c14a452845ea/FLAG07c3ee47c [2023-12-02 17:04:35,354 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/data/24d7b3103/f4286fc13624449aa952c14a452845ea [2023-12-02 17:04:35,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:04:35,357 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:04:35,358 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:04:35,358 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:04:35,362 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:04:35,363 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:04:35" (1/1) ... [2023-12-02 17:04:35,364 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4480fa98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:04:35, skipping insertion in model container [2023-12-02 17:04:35,364 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:04:35" (1/1) ... [2023-12-02 17:04:35,462 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:04:36,514 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:04:36,559 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-02 17:04:36,602 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:04:36,911 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:04:36,939 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:04:36,949 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,8) [21] [2023-12-02 17:04:36,951 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [24] [2023-12-02 17:04:36,951 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,8) [25] [2023-12-02 17:04:36,951 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [26] [2023-12-02 17:04:36,951 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [187] [2023-12-02 17:04:36,952 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [193] [2023-12-02 17:04:36,952 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [440] [2023-12-02 17:04:36,952 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [494] [2023-12-02 17:04:36,952 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,1) [514] [2023-12-02 17:04:36,952 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [515] [2023-12-02 17:04:36,953 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [1217] [2023-12-02 17:04:36,953 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1390] [2023-12-02 17:04:36,953 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,1) [1469] [2023-12-02 17:04:36,953 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1470] [2023-12-02 17:04:36,954 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,1) [1471] [2023-12-02 17:04:36,954 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1472] [2023-12-02 17:04:36,954 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,1) [1473] [2023-12-02 17:04:36,954 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1474] [2023-12-02 17:04:36,954 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,1) [1475] [2023-12-02 17:04:36,955 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1476] [2023-12-02 17:04:36,955 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,1) [1477] [2023-12-02 17:04:36,955 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1478] [2023-12-02 17:04:36,955 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,8) [1723] [2023-12-02 17:04:36,956 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1724] [2023-12-02 17:04:36,956 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [1727] [2023-12-02 17:04:36,956 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1728] [2023-12-02 17:04:36,956 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [1729] [2023-12-02 17:04:36,957 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1730] [2023-12-02 17:04:36,957 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,1) [1731] [2023-12-02 17:04:36,957 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1732] [2023-12-02 17:04:36,957 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [1739] [2023-12-02 17:04:36,957 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1740] [2023-12-02 17:04:36,958 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [1743] [2023-12-02 17:04:36,958 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [1744] [2023-12-02 17:04:36,958 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [1745] [2023-12-02 17:04:36,958 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1749] [2023-12-02 17:04:36,959 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1750] [2023-12-02 17:04:36,959 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [1772] [2023-12-02 17:04:36,959 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [1773] [2023-12-02 17:04:36,959 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [1774] [2023-12-02 17:04:36,959 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [1780] [2023-12-02 17:04:36,959 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [1781] [2023-12-02 17:04:36,960 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4164) [1782] [2023-12-02 17:04:36,960 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma function(_enable) [1783] [2023-12-02 17:04:36,960 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma function(_disable) [1784] [2023-12-02 17:04:36,960 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [1785] [2023-12-02 17:04:36,960 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1786] [2023-12-02 17:04:36,961 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1787] [2023-12-02 17:04:36,961 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1788] [2023-12-02 17:04:36,961 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1789] [2023-12-02 17:04:36,961 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1843] [2023-12-02 17:04:36,961 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1844] [2023-12-02 17:04:36,962 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4200) [1908] [2023-12-02 17:04:36,962 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(default:4200) [1909] [2023-12-02 17:04:36,962 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1921] [2023-12-02 17:04:36,962 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1922] [2023-12-02 17:04:36,963 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1923] [2023-12-02 17:04:36,963 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1924] [2023-12-02 17:04:36,963 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1925] [2023-12-02 17:04:36,963 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1926] [2023-12-02 17:04:36,964 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1927] [2023-12-02 17:04:36,964 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1928] [2023-12-02 17:04:36,964 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1929] [2023-12-02 17:04:36,964 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1930] [2023-12-02 17:04:36,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(INIT,DriverEntry) [2069] [2023-12-02 17:04:36,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FloppyAddDevice) [2070] [2023-12-02 17:04:36,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FloppyPnp) [2071] [2023-12-02 17:04:36,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FloppyPower) [2072] [2023-12-02 17:04:36,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlConfigCallBack) [2073] [2023-12-02 17:04:36,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlInitializeControllerHardware) [2074] [2023-12-02 17:04:36,966 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlInterpretError) [2075] [2023-12-02 17:04:36,966 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlDatarateSpecifyConfigure) [2076] [2023-12-02 17:04:36,966 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlRecalibrateDrive) [2077] [2023-12-02 17:04:36,966 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlDetermineMediaType) [2078] [2023-12-02 17:04:36,966 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlCheckBootSector) [2079] [2023-12-02 17:04:36,966 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlConsolidateMediaTypeWithBootSector) [2080] [2023-12-02 17:04:36,967 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlIssueCommand) [2081] [2023-12-02 17:04:36,967 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlReadWriteTrack) [2082] [2023-12-02 17:04:36,967 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlReadWrite) [2083] [2023-12-02 17:04:36,967 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlFormat) [2084] [2023-12-02 17:04:36,967 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlFinishOperation) [2085] [2023-12-02 17:04:36,967 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlStartDrive) [2086] [2023-12-02 17:04:36,968 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FloppyThread) [2087] [2023-12-02 17:04:36,968 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlAllocateIoBuffer) [2088] [2023-12-02 17:04:36,968 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlFreeIoBuffer) [2089] [2023-12-02 17:04:36,968 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FloppyCreateClose) [2090] [2023-12-02 17:04:36,969 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FloppyDeviceControl) [2091] [2023-12-02 17:04:36,969 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FloppyReadWrite) [2092] [2023-12-02 17:04:36,969 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlCheckFormatParameters) [2093] [2023-12-02 17:04:36,969 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlFdcDeviceIo) [2094] [2023-12-02 17:04:36,969 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlHdbit) [2095] [2023-12-02 17:04:36,970 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [7008] [2023-12-02 17:04:36,970 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [7009] [2023-12-02 17:04:36,970 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [7010] [2023-12-02 17:04:36,970 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7011] [2023-12-02 17:04:36,970 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7012] [2023-12-02 17:04:36,971 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [7013] [2023-12-02 17:04:36,971 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [7014] [2023-12-02 17:04:36,971 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [7015] [2023-12-02 17:04:36,971 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [7016] [2023-12-02 17:04:36,972 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [7017] [2023-12-02 17:04:36,972 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4164) [7018] [2023-12-02 17:04:36,972 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma function(_enable) [7019] [2023-12-02 17:04:36,972 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma function(_disable) [7020] [2023-12-02 17:04:36,972 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [7021] [2023-12-02 17:04:36,973 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7022] [2023-12-02 17:04:36,973 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7023] [2023-12-02 17:04:36,973 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7024] [2023-12-02 17:04:36,973 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7025] [2023-12-02 17:04:36,973 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7026] [2023-12-02 17:04:36,974 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7027] [2023-12-02 17:04:36,974 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4200) [7028] [2023-12-02 17:04:36,974 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(default:4200) [7029] [2023-12-02 17:04:37,215 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:04:37,262 WARN L675 CHandler]: The function swprintf is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:04:37,263 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:04:37,268 INFO L206 MainTranslator]: Completed translation [2023-12-02 17:04:37,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:04:37 WrapperNode [2023-12-02 17:04:37,269 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:04:37,270 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 17:04:37,270 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 17:04:37,270 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 17:04:37,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:04:37" (1/1) ... [2023-12-02 17:04:37,377 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:04:37" (1/1) ... [2023-12-02 17:04:37,485 INFO L138 Inliner]: procedures = 142, calls = 2898, calls flagged for inlining = 38, calls inlined = 27, statements flattened = 3055 [2023-12-02 17:04:37,485 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 17:04:37,486 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 17:04:37,486 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 17:04:37,486 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 17:04:37,493 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:04:37" (1/1) ... [2023-12-02 17:04:37,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:04:37" (1/1) ... [2023-12-02 17:04:37,515 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:04:37" (1/1) ... [2023-12-02 17:04:37,516 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:04:37" (1/1) ... [2023-12-02 17:04:37,584 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:04:37" (1/1) ... [2023-12-02 17:04:37,598 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:04:37" (1/1) ... [2023-12-02 17:04:37,614 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:04:37" (1/1) ... [2023-12-02 17:04:37,627 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:04:37" (1/1) ... [2023-12-02 17:04:37,642 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 17:04:37,643 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 17:04:37,643 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 17:04:37,643 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 17:04:37,644 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:04:37" (1/1) ... [2023-12-02 17:04:37,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:04:37,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:04:37,705 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 17:04:37,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 17:04:37,737 INFO L130 BoogieDeclarations]: Found specification of procedure IoGetConfigurationInformation [2023-12-02 17:04:37,737 INFO L138 BoogieDeclarations]: Found implementation of procedure IoGetConfigurationInformation [2023-12-02 17:04:37,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-02 17:04:37,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 17:04:37,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 17:04:37,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-12-02 17:04:37,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 17:04:37,738 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2023-12-02 17:04:37,738 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2023-12-02 17:04:37,738 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2023-12-02 17:04:37,738 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2023-12-02 17:04:37,738 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCreateClose [2023-12-02 17:04:37,738 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCreateClose [2023-12-02 17:04:37,738 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnpComplete [2023-12-02 17:04:37,738 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnpComplete [2023-12-02 17:04:37,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-12-02 17:04:37,738 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2023-12-02 17:04:37,738 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2023-12-02 17:04:37,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2023-12-02 17:04:37,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-12-02 17:04:37,739 INFO L130 BoogieDeclarations]: Found specification of procedure InterlockedExchange [2023-12-02 17:04:37,739 INFO L138 BoogieDeclarations]: Found implementation of procedure InterlockedExchange [2023-12-02 17:04:37,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2023-12-02 17:04:37,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 17:04:37,739 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 17:04:37,739 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2023-12-02 17:04:37,739 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2023-12-02 17:04:37,739 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2023-12-02 17:04:37,740 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2023-12-02 17:04:37,740 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyDeviceControl [2023-12-02 17:04:37,740 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyDeviceControl [2023-12-02 17:04:37,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 17:04:37,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 17:04:37,740 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyProcessQueuedRequests [2023-12-02 17:04:37,740 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyProcessQueuedRequests [2023-12-02 17:04:37,740 INFO L130 BoogieDeclarations]: Found specification of procedure ExfInterlockedInsertTailList [2023-12-02 17:04:37,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ExfInterlockedInsertTailList [2023-12-02 17:04:37,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 17:04:37,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 17:04:37,741 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2023-12-02 17:04:37,741 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2023-12-02 17:04:37,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2023-12-02 17:04:37,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2023-12-02 17:04:37,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2023-12-02 17:04:37,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 17:04:37,741 INFO L130 BoogieDeclarations]: Found specification of procedure FlFdcDeviceIo [2023-12-02 17:04:37,741 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFdcDeviceIo [2023-12-02 17:04:37,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-12-02 17:04:37,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-12-02 17:04:37,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 17:04:37,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 17:04:37,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-12-02 17:04:37,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 17:04:37,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-12-02 17:04:37,742 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2023-12-02 17:04:37,742 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2023-12-02 17:04:37,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2023-12-02 17:04:37,743 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2023-12-02 17:04:37,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2023-12-02 17:04:37,743 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_guard [2023-12-02 17:04:37,743 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_guard [2023-12-02 17:04:37,743 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyQueueRequest [2023-12-02 17:04:37,743 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyQueueRequest [2023-12-02 17:04:37,743 INFO L130 BoogieDeclarations]: Found specification of procedure ExAllocatePoolWithTag [2023-12-02 17:04:37,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ExAllocatePoolWithTag [2023-12-02 17:04:37,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 17:04:37,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 17:04:38,156 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 17:04:38,158 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 17:04:38,216 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 17:04:38,229 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-12-02 17:04:38,229 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-12-02 17:04:38,236 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 17:04:38,801 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !false; [2023-12-02 17:04:38,802 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume false; [2023-12-02 17:04:38,859 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 17:04:38,877 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2023-12-02 17:04:38,877 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2023-12-02 17:04:38,884 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 17:04:40,998 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 17:04:41,023 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 17:04:41,075 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2023-12-02 17:04:41,075 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2023-12-02 17:04:41,078 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 17:04:41,079 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 17:04:41,080 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 17:04:41,502 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume !false; [2023-12-02 17:04:41,503 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !false; [2023-12-02 17:04:41,503 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume false; [2023-12-02 17:04:41,503 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume false; [2023-12-02 17:04:41,503 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2023-12-02 17:04:41,503 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2023-12-02 17:04:41,521 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 17:04:41,534 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 17:04:41,536 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 17:04:45,978 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2023-12-02 17:04:45,979 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2023-12-02 17:04:45,979 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##139: assume false; [2023-12-02 17:04:45,979 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##140: assume !false; [2023-12-02 17:04:45,979 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##124: assume !false; [2023-12-02 17:04:45,979 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##123: assume false; [2023-12-02 17:04:46,123 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 17:04:46,232 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-12-02 17:04:46,232 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-12-02 17:04:46,242 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 17:04:46,244 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 17:04:46,247 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 17:04:46,253 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 17:04:46,254 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 17:04:46,260 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 17:04:46,262 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 17:04:46,264 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 17:04:50,675 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##210: assume false; [2023-12-02 17:04:50,676 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##211: assume !false; [2023-12-02 17:04:50,676 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##97: assume !false; [2023-12-02 17:04:50,676 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##96: assume false; [2023-12-02 17:04:50,676 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##76: assume false; [2023-12-02 17:04:50,676 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##177: assume !false; [2023-12-02 17:04:50,676 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##176: assume false; [2023-12-02 17:04:50,676 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##77: assume !false; [2023-12-02 17:04:50,676 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##48: assume !false; [2023-12-02 17:04:50,676 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##47: assume false; [2023-12-02 17:04:50,676 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume !false; [2023-12-02 17:04:50,676 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume false; [2023-12-02 17:04:50,677 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##162: assume false; [2023-12-02 17:04:50,677 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##163: assume !false; [2023-12-02 17:04:50,677 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##108: assume !false; [2023-12-02 17:04:50,677 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##107: assume false; [2023-12-02 17:04:50,691 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 17:04:50,951 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 17:04:50,951 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-02 17:04:50,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:04:50 BoogieIcfgContainer [2023-12-02 17:04:50,952 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 17:04:50,954 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 17:04:50,954 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 17:04:50,956 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 17:04:50,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:04:35" (1/3) ... [2023-12-02 17:04:50,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f4e54f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:04:50, skipping insertion in model container [2023-12-02 17:04:50,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:04:37" (2/3) ... [2023-12-02 17:04:50,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f4e54f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:04:50, skipping insertion in model container [2023-12-02 17:04:50,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:04:50" (3/3) ... [2023-12-02 17:04:50,959 INFO L112 eAbstractionObserver]: Analyzing ICFG floppy.i.cil-3.c [2023-12-02 17:04:50,977 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 17:04:50,977 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 954 error locations. [2023-12-02 17:04:51,056 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 17:04:51,063 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;@15c31a51, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 17:04:51,063 INFO L358 AbstractCegarLoop]: Starting to check reachability of 954 error locations. [2023-12-02 17:04:51,074 INFO L276 IsEmpty]: Start isEmpty. Operand has 1883 states, 821 states have (on average 2.4323995127892815) internal successors, (1997), 1799 states have internal predecessors, (1997), 95 states have call successors, (95), 20 states have call predecessors, (95), 20 states have return successors, (95), 89 states have call predecessors, (95), 95 states have call successors, (95) [2023-12-02 17:04:51,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-12-02 17:04:51,080 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:04:51,081 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-12-02 17:04:51,081 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [FloppyProcessQueuedRequestsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, FloppyProcessQueuedRequestsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 952 more)] === [2023-12-02 17:04:51,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:04:51,087 INFO L85 PathProgramCache]: Analyzing trace with hash 113506, now seen corresponding path program 1 times [2023-12-02 17:04:51,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:04:51,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [909888139] [2023-12-02 17:04:51,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:04:51,106 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 17:04:51,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:04:51,108 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:04:51,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:04:52,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:04:52,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 17:04:52,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:04:53,090 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:53,091 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 17:04:53,133 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:53,134 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 17:04:53,186 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:53,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:04:53,239 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:53,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:04:53,283 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:53,283 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 17:04:53,323 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:53,324 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 17:04:53,378 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:53,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:04:53,433 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:53,433 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 17:04:53,485 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:53,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:04:53,533 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:53,533 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 1 case distinctions, treesize of input 14 treesize of output 15 [2023-12-02 17:04:53,570 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:53,571 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 17:04:53,610 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:53,611 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 17:04:53,697 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:53,697 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 17:04:53,750 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:53,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:04:53,799 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:53,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:04:53,839 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:53,839 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 17:04:53,875 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:53,875 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 17:04:53,916 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:53,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:04:53,957 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:53,957 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 17:04:54,003 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:54,004 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 1 case distinctions, treesize of input 14 treesize of output 15 [2023-12-02 17:04:54,041 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:54,041 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 17:04:54,078 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:54,078 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 17:04:54,110 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:54,111 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 17:04:54,156 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:54,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:04:54,197 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:54,198 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 17:04:54,233 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:54,233 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 17:04:54,277 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:54,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:04:54,313 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:54,313 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 17:04:54,348 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:54,348 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 17:04:54,391 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:54,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:04:54,447 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:54,447 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 17:04:54,505 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:54,505 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 17:04:54,544 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:54,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:04:54,581 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:54,581 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 17:04:54,617 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:54,618 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 17:04:54,658 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:54,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:04:54,705 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:54,705 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 1 case distinctions, treesize of input 14 treesize of output 15 [2023-12-02 17:04:54,746 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:54,747 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 1 case distinctions, treesize of input 14 treesize of output 15 [2023-12-02 17:04:54,795 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:54,796 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 17:04:54,846 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:54,846 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 17:04:54,889 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:54,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:04:54,930 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:54,931 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 1 case distinctions, treesize of input 14 treesize of output 15 [2023-12-02 17:04:54,983 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:54,983 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 17:04:55,026 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:55,027 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 1 case distinctions, treesize of input 14 treesize of output 15 [2023-12-02 17:04:55,068 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:55,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:04:55,121 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:55,121 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 17:04:55,176 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:55,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 15 [2023-12-02 17:04:55,227 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:55,227 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 17:04:55,262 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:55,263 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 17:04:55,304 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:55,305 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 17:04:55,341 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:55,342 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:04:55,379 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:55,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:04:55,405 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:55,406 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 17:04:55,432 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:55,432 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 17:04:55,474 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:55,474 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 17:04:55,509 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:55,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:04:55,537 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:55,537 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 17:04:55,583 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:55,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:04:55,617 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:55,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:04:55,663 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:04:55,664 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 17:04:55,731 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 17:04:55,731 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:04:55,732 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:04:55,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [909888139] [2023-12-02 17:04:55,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [909888139] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:04:55,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:04:55,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 17:04:55,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143159927] [2023-12-02 17:04:55,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:04:55,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:04:55,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:04:55,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:04:55,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:04:55,772 INFO L87 Difference]: Start difference. First operand has 1883 states, 821 states have (on average 2.4323995127892815) internal successors, (1997), 1799 states have internal predecessors, (1997), 95 states have call successors, (95), 20 states have call predecessors, (95), 20 states have return successors, (95), 89 states have call predecessors, (95), 95 states have call successors, (95) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 17:05:08,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:05:08,523 INFO L93 Difference]: Finished difference Result 1880 states and 2152 transitions. [2023-12-02 17:05:08,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:05:08,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2023-12-02 17:05:08,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:05:08,546 INFO L225 Difference]: With dead ends: 1880 [2023-12-02 17:05:08,546 INFO L226 Difference]: Without dead ends: 1879 [2023-12-02 17:05:08,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:05:08,550 INFO L413 NwaCegarLoop]: 1928 mSDtfsCounter, 50 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 3039 SdHoareTripleChecker+Invalid, 1214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2023-12-02 17:05:08,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 3039 Invalid, 1214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1211 Invalid, 0 Unknown, 0 Unchecked, 12.6s Time] [2023-12-02 17:05:08,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1879 states. [2023-12-02 17:05:08,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1879 to 1879. [2023-12-02 17:05:08,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1879 states, 821 states have (on average 2.4165651644336177) internal successors, (1984), 1795 states have internal predecessors, (1984), 95 states have call successors, (95), 20 states have call predecessors, (95), 19 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2023-12-02 17:05:08,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1879 states to 1879 states and 2151 transitions. [2023-12-02 17:05:08,656 INFO L78 Accepts]: Start accepts. Automaton has 1879 states and 2151 transitions. Word has length 2 [2023-12-02 17:05:08,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:05:08,656 INFO L495 AbstractCegarLoop]: Abstraction has 1879 states and 2151 transitions. [2023-12-02 17:05:08,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 17:05:08,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1879 states and 2151 transitions. [2023-12-02 17:05:08,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-12-02 17:05:08,656 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:05:08,657 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-12-02 17:05:08,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:05:08,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:05:08,857 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [FloppyProcessQueuedRequestsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, FloppyProcessQueuedRequestsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 952 more)] === [2023-12-02 17:05:08,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:05:08,858 INFO L85 PathProgramCache]: Analyzing trace with hash 113507, now seen corresponding path program 1 times [2023-12-02 17:05:08,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:05:08,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1532116598] [2023-12-02 17:05:08,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:05:08,860 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 17:05:08,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:05:08,861 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:05:08,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:05:10,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:05:10,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 17:05:10,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:05:10,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:10,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,523 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 16 treesize of output 1 [2023-12-02 17:05:10,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:10,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:10,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,581 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 17:05:10,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:10,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:10,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:10,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,632 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:05:10,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,650 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:05:10,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,678 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 17:05:10,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,700 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:05:10,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:10,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,742 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 16 treesize of output 1 [2023-12-02 17:05:10,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,756 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 11 treesize of output 1 [2023-12-02 17:05:10,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:10,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,794 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 17:05:10,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:10,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,825 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 11 treesize of output 1 [2023-12-02 17:05:10,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,840 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 11 treesize of output 1 [2023-12-02 17:05:10,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,846 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:05:10,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,865 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:05:10,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,896 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 17:05:10,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,905 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:05:10,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,926 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 11 treesize of output 1 [2023-12-02 17:05:10,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,950 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 16 treesize of output 1 [2023-12-02 17:05:10,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:10,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:10,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:10,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,003 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 16 treesize of output 1 [2023-12-02 17:05:11,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:11,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,034 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 11 treesize of output 1 [2023-12-02 17:05:11,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,049 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 11 treesize of output 1 [2023-12-02 17:05:11,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,055 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:05:11,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,069 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:05:11,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,094 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 17:05:11,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,102 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:05:11,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,135 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 17:05:11,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,146 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:05:11,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,155 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:05:11,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,185 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 17:05:11,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,197 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:05:11,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,205 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:05:11,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,218 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:05:11,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,227 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:05:11,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,239 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:05:11,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,260 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:05:11,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,277 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:05:11,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,291 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:05:11,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,303 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:05:11,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:11,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:11,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,340 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:05:11,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:11,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:11,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:11,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:11,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,413 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:05:11,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,424 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:05:11,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,433 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:05:11,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:11,447 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:05:11,462 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 17:05:11,462 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:05:11,463 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:05:11,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1532116598] [2023-12-02 17:05:11,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1532116598] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:05:11,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:05:11,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 17:05:11,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449803862] [2023-12-02 17:05:11,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:05:11,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:05:11,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:05:11,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:05:11,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:05:11,466 INFO L87 Difference]: Start difference. First operand 1879 states and 2151 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 17:05:17,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:05:17,134 INFO L93 Difference]: Finished difference Result 1877 states and 2149 transitions. [2023-12-02 17:05:17,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:05:17,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2023-12-02 17:05:17,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:05:17,164 INFO L225 Difference]: With dead ends: 1877 [2023-12-02 17:05:17,164 INFO L226 Difference]: Without dead ends: 1877 [2023-12-02 17:05:17,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 17:05:17,165 INFO L413 NwaCegarLoop]: 1953 mSDtfsCounter, 4 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 1196 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 3096 SdHoareTripleChecker+Invalid, 1197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-12-02 17:05:17,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 3096 Invalid, 1197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1196 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-12-02 17:05:17,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1877 states. [2023-12-02 17:05:17,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1877 to 1877. [2023-12-02 17:05:17,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 821 states have (on average 2.4141291108404386) internal successors, (1982), 1793 states have internal predecessors, (1982), 95 states have call successors, (95), 20 states have call predecessors, (95), 19 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2023-12-02 17:05:17,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 2149 transitions. [2023-12-02 17:05:17,219 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 2149 transitions. Word has length 2 [2023-12-02 17:05:17,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:05:17,219 INFO L495 AbstractCegarLoop]: Abstraction has 1877 states and 2149 transitions. [2023-12-02 17:05:17,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 17:05:17,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 2149 transitions. [2023-12-02 17:05:17,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 17:05:17,219 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:05:17,220 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 17:05:17,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:05:17,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:05:17,420 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [FloppyProcessQueuedRequestsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, FloppyProcessQueuedRequestsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 952 more)] === [2023-12-02 17:05:17,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:05:17,421 INFO L85 PathProgramCache]: Analyzing trace with hash 110935289, now seen corresponding path program 1 times [2023-12-02 17:05:17,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:05:17,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [105377904] [2023-12-02 17:05:17,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:05:17,422 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 17:05:17,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:05:17,423 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:05:17,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:05:18,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:05:18,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 17:05:18,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:05:18,294 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 16 treesize of output 7 [2023-12-02 17:05:18,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:18,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:18,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:18,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:18,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:18,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,376 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 17:05:18,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:18,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:18,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:18,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:18,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:18,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,449 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 17:05:18,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:18,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,495 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 17:05:18,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:18,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,537 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 17:05:18,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,557 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 17:05:18,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,575 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 17:05:18,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,588 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 11 treesize of output 1 [2023-12-02 17:05:18,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:18,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:18,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,621 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 11 treesize of output 1 [2023-12-02 17:05:18,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:18,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,652 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 17:05:18,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,667 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 11 treesize of output 1 [2023-12-02 17:05:18,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:18,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:18,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:18,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:18,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:18,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:18,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:18,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:18,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:18,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,781 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 17:05:18,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,801 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 17:05:18,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:18,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,825 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 11 treesize of output 1 [2023-12-02 17:05:18,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:18,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:18,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:18,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,870 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 11 treesize of output 1 [2023-12-02 17:05:18,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,889 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 16 treesize of output 1 [2023-12-02 17:05:18,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:18,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,927 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 17:05:18,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,951 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 17:05:18,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:18,979 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 17:05:19,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,017 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 17:05:19,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,041 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 1 [2023-12-02 17:05:19,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:19,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,073 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 16 treesize of output 1 [2023-12-02 17:05:19,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:19,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,106 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 17:05:19,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:19,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,140 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 17:05:19,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:19,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,176 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 17:05:19,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,200 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 17:05:19,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,229 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 17:05:19,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,245 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 11 treesize of output 1 [2023-12-02 17:05:19,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,262 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 17:05:19,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:19,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,291 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 17:05:19,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,313 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 17:05:19,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,341 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 17:05:19,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,376 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 17:05:19,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,397 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 17:05:19,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,428 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 17:05:19,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,449 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 17:05:19,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,485 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 17:05:19,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 1 [2023-12-02 17:05:19,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,555 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 17:05:19,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:19,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:19,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:19,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,597 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 11 treesize of output 1 [2023-12-02 17:05:19,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:19,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,636 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 17:05:19,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:19,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:19,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,667 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 6 treesize of output 1 [2023-12-02 17:05:19,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:19,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:19,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,703 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 17:05:19,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:19,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,734 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 17:05:19,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:19,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,773 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 17:05:19,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,794 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 17:05:19,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,812 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 17:05:19,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:19,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:19,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:19,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,849 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 11 treesize of output 1 [2023-12-02 17:05:19,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:19,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,871 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 11 treesize of output 1 [2023-12-02 17:05:19,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:19,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:19,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,899 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 6 treesize of output 1 [2023-12-02 17:05:19,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,913 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 11 treesize of output 1 [2023-12-02 17:05:19,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,929 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 17:05:19,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,948 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 17:05:19,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,962 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 11 treesize of output 1 [2023-12-02 17:05:19,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,971 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:19,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:19,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:19,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:19,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:20,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:20,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:20,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:20,016 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 6 treesize of output 1 [2023-12-02 17:05:20,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:20,024 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 11 treesize of output 1 [2023-12-02 17:05:20,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:20,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:20,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:20,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:20,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:20,062 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 17:05:20,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:20,080 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 17:05:20,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:20,092 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 11 treesize of output 1 [2023-12-02 17:05:20,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:20,116 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 17:05:20,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:20,145 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 17:05:20,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:20,163 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 16 treesize of output 1 [2023-12-02 17:05:20,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:20,176 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 11 treesize of output 1 [2023-12-02 17:05:20,198 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-12-02 17:05:20,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 11 [2023-12-02 17:05:20,227 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 17:05:20,227 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:05:20,227 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:05:20,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [105377904] [2023-12-02 17:05:20,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [105377904] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:05:20,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:05:20,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:05:20,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394423828] [2023-12-02 17:05:20,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:05:20,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 17:05:20,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:05:20,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 17:05:20,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:05:20,229 INFO L87 Difference]: Start difference. First operand 1877 states and 2149 transitions. Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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 17:05:25,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:05:34,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:05:34,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:05:34,432 INFO L93 Difference]: Finished difference Result 1876 states and 2148 transitions. [2023-12-02 17:05:34,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 17:05:34,433 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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 4 [2023-12-02 17:05:34,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:05:34,442 INFO L225 Difference]: With dead ends: 1876 [2023-12-02 17:05:34,442 INFO L226 Difference]: Without dead ends: 1876 [2023-12-02 17:05:34,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-02 17:05:34,443 INFO L413 NwaCegarLoop]: 1952 mSDtfsCounter, 3 mSDsluCounter, 3379 mSDsCounter, 0 mSdLazyCounter, 3252 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 5331 SdHoareTripleChecker+Invalid, 3255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3252 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:05:34,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 5331 Invalid, 3255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3252 Invalid, 2 Unknown, 0 Unchecked, 14.0s Time] [2023-12-02 17:05:34,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1876 states. [2023-12-02 17:05:34,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1876 to 1876. [2023-12-02 17:05:34,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1876 states, 821 states have (on average 2.412911084043849) internal successors, (1981), 1792 states have internal predecessors, (1981), 95 states have call successors, (95), 20 states have call predecessors, (95), 19 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2023-12-02 17:05:34,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1876 states to 1876 states and 2148 transitions. [2023-12-02 17:05:34,494 INFO L78 Accepts]: Start accepts. Automaton has 1876 states and 2148 transitions. Word has length 4 [2023-12-02 17:05:34,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:05:34,494 INFO L495 AbstractCegarLoop]: Abstraction has 1876 states and 2148 transitions. [2023-12-02 17:05:34,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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 17:05:34,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1876 states and 2148 transitions. [2023-12-02 17:05:34,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 17:05:34,494 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:05:34,495 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 17:05:34,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:05:34,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:05:34,695 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [FloppyProcessQueuedRequestsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, FloppyProcessQueuedRequestsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 952 more)] === [2023-12-02 17:05:34,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:05:34,696 INFO L85 PathProgramCache]: Analyzing trace with hash 110935290, now seen corresponding path program 1 times [2023-12-02 17:05:34,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:05:34,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [226339660] [2023-12-02 17:05:34,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:05:34,697 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 17:05:34,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:05:34,698 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:05:34,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:05:35,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:05:35,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 17:05:35,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:05:35,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:35,622 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 6 treesize of output 5 [2023-12-02 17:05:35,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:35,647 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 17:05:35,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:35,664 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 11 treesize of output 1 [2023-12-02 17:05:35,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:35,676 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 11 treesize of output 1 [2023-12-02 17:05:35,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:35,688 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 6 treesize of output 1 [2023-12-02 17:05:35,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:35,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:35,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:35,714 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:35,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:35,739 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 16 treesize of output 1 [2023-12-02 17:05:35,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:35,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:35,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:35,769 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 11 treesize of output 1 [2023-12-02 17:05:35,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:35,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:35,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:35,807 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 17:05:35,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:35,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:35,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:35,861 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 17:05:35,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:35,888 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 17:05:35,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:35,913 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 16 treesize of output 1 [2023-12-02 17:05:35,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:35,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:35,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:35,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:35,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:35,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:35,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:35,977 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 17:05:35,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:35,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:36,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:36,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,014 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 6 treesize of output 1 [2023-12-02 17:05:36,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,066 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 17:05:36,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,089 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 17:05:36,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,107 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 17:05:36,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:36,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,139 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 17:05:36,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,153 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 11 treesize of output 1 [2023-12-02 17:05:36,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,174 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 17:05:36,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:36,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,211 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 17:05:36,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:36,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,262 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 17:05:36,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,287 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 16 treesize of output 1 [2023-12-02 17:05:36,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,331 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 17:05:36,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,355 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 17:05:36,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,394 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 17:05:36,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 1 [2023-12-02 17:05:36,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,495 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 17:05:36,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,522 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 17:05:36,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,565 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 17:05:36,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,591 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 17:05:36,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,611 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 17:05:36,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:36,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,648 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 17:05:36,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:36,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:36,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:36,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:36,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:36,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,731 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:36,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,748 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 17:05:36,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:36,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:36,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,781 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 11 treesize of output 1 [2023-12-02 17:05:36,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:36,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:36,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,828 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 17:05:36,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,868 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 17:05:36,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,891 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 17:05:36,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,912 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 17:05:36,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:36,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,947 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 17:05:36,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:36,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:36,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:36,988 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 6 treesize of output 1 [2023-12-02 17:05:37,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,013 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 17:05:37,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:37,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:37,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:37,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,073 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 16 treesize of output 1 [2023-12-02 17:05:37,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:37,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,106 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 17:05:37,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:37,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,149 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 16 treesize of output 1 [2023-12-02 17:05:37,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,185 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 17:05:37,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,196 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 11 treesize of output 1 [2023-12-02 17:05:37,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:37,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:37,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:37,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:37,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,263 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 17:05:37,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:37,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,286 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 6 treesize of output 1 [2023-12-02 17:05:37,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:37,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:37,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,326 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 11 treesize of output 1 [2023-12-02 17:05:37,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,342 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 17:05:37,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:37,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:37,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,387 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 17:05:37,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:37,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:37,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,424 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 6 treesize of output 1 [2023-12-02 17:05:37,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,448 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 17:05:37,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:37,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,485 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 17:05:37,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,500 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 11 treesize of output 1 [2023-12-02 17:05:37,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,526 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 17:05:37,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,561 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 17:05:37,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,572 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:37,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:37,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:37,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:37,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,621 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 11 treesize of output 1 [2023-12-02 17:05:37,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,641 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 17:05:37,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:37,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,665 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 6 treesize of output 1 [2023-12-02 17:05:37,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:37,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:37,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:37,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,727 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 17:05:37,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:37,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:37,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,773 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 17:05:37,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:37,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 17:05:37,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:05:37,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 17:05:37,838 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-12-02 17:05:37,844 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-12-02 17:05:37,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 21 treesize of output 9 [2023-12-02 17:05:37,922 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 17:05:37,922 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:05:37,923 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:05:37,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [226339660] [2023-12-02 17:05:37,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [226339660] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:05:37,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:05:37,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:05:37,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610838113] [2023-12-02 17:05:37,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:05:37,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 17:05:37,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:05:37,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 17:05:37,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:05:37,924 INFO L87 Difference]: Start difference. First operand 1876 states and 2148 transitions. Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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 17:05:44,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:05:53,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:05:53,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:05:53,929 INFO L93 Difference]: Finished difference Result 1875 states and 2147 transitions. [2023-12-02 17:05:53,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 17:05:53,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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 4 [2023-12-02 17:05:53,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:05:53,940 INFO L225 Difference]: With dead ends: 1875 [2023-12-02 17:05:53,940 INFO L226 Difference]: Without dead ends: 1875 [2023-12-02 17:05:53,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-02 17:05:53,941 INFO L413 NwaCegarLoop]: 1952 mSDtfsCounter, 1 mSDsluCounter, 3428 mSDsCounter, 0 mSdLazyCounter, 3201 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 5380 SdHoareTripleChecker+Invalid, 3204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3201 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2023-12-02 17:05:53,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 5380 Invalid, 3204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3201 Invalid, 2 Unknown, 0 Unchecked, 15.9s Time] [2023-12-02 17:05:53,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1875 states. [2023-12-02 17:05:53,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1875 to 1875. [2023-12-02 17:05:53,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1875 states, 820 states have (on average 2.4146341463414633) internal successors, (1980), 1791 states have internal predecessors, (1980), 95 states have call successors, (95), 20 states have call predecessors, (95), 19 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2023-12-02 17:05:54,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1875 states to 1875 states and 2147 transitions. [2023-12-02 17:05:54,002 INFO L78 Accepts]: Start accepts. Automaton has 1875 states and 2147 transitions. Word has length 4 [2023-12-02 17:05:54,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:05:54,002 INFO L495 AbstractCegarLoop]: Abstraction has 1875 states and 2147 transitions. [2023-12-02 17:05:54,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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 17:05:54,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1875 states and 2147 transitions. [2023-12-02 17:05:54,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 17:05:54,003 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:05:54,003 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:05:54,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:05:54,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:05:54,204 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [FloppyProcessQueuedRequestsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, FloppyProcessQueuedRequestsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 952 more)] === [2023-12-02 17:05:54,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:05:54,204 INFO L85 PathProgramCache]: Analyzing trace with hash -607184311, now seen corresponding path program 1 times [2023-12-02 17:05:54,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:05:54,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1100334313] [2023-12-02 17:05:54,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:05:54,206 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 17:05:54,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:05:54,207 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:05:54,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 (6)] Waiting until timeout for monitored process [2023-12-02 17:05:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:05:55,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 1269 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 17:05:55,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:05:55,122 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 17:05:55,122 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:05:55,122 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:05:55,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1100334313] [2023-12-02 17:05:55,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1100334313] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:05:55,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:05:55,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 17:05:55,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267689246] [2023-12-02 17:05:55,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:05:55,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 17:05:55,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:05:55,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 17:05:55,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:05:55,124 INFO L87 Difference]: Start difference. First operand 1875 states and 2147 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:05:58,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:05:58,252 INFO L93 Difference]: Finished difference Result 1877 states and 2149 transitions. [2023-12-02 17:05:58,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 17:05:58,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2023-12-02 17:05:58,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:05:58,263 INFO L225 Difference]: With dead ends: 1877 [2023-12-02 17:05:58,263 INFO L226 Difference]: Without dead ends: 1876 [2023-12-02 17:05:58,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:05:58,264 INFO L413 NwaCegarLoop]: 1953 mSDtfsCounter, 1 mSDsluCounter, 3903 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 5856 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:05:58,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 5856 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-02 17:05:58,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1876 states. [2023-12-02 17:05:58,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1876 to 1876. [2023-12-02 17:05:58,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1876 states, 821 states have (on average 2.412911084043849) internal successors, (1981), 1792 states have internal predecessors, (1981), 95 states have call successors, (95), 20 states have call predecessors, (95), 19 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2023-12-02 17:05:58,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1876 states to 1876 states and 2148 transitions. [2023-12-02 17:05:58,298 INFO L78 Accepts]: Start accepts. Automaton has 1876 states and 2148 transitions. Word has length 9 [2023-12-02 17:05:58,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:05:58,298 INFO L495 AbstractCegarLoop]: Abstraction has 1876 states and 2148 transitions. [2023-12-02 17:05:58,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:05:58,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1876 states and 2148 transitions. [2023-12-02 17:05:58,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 17:05:58,299 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:05:58,299 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:05:58,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 (6)] Ended with exit code 0 [2023-12-02 17:05:58,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:05:58,500 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [FloppyProcessQueuedRequestsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, FloppyProcessQueuedRequestsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 952 more)] === [2023-12-02 17:05:58,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:05:58,500 INFO L85 PathProgramCache]: Analyzing trace with hash -203590811, now seen corresponding path program 1 times [2023-12-02 17:05:58,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:05:58,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [371499582] [2023-12-02 17:05:58,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:05:58,501 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 17:05:58,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:05:58,502 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:05:58,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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)] Waiting until timeout for monitored process [2023-12-02 17:05:59,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:05:59,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 1280 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 17:05:59,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:05:59,511 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 17:05:59,511 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:05:59,602 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 17:05:59,602 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:05:59,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [371499582] [2023-12-02 17:05:59,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [371499582] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:05:59,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [784226241] [2023-12-02 17:05:59,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:05:59,603 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:05:59,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:05:59,604 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:05:59,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-02 17:06:01,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:06:01,141 INFO L262 TraceCheckSpWp]: Trace formula consists of 1280 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 17:06:01,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:06:01,153 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 17:06:01,153 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:06:01,192 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 17:06:01,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [784226241] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:06:01,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325857936] [2023-12-02 17:06:01,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:06:01,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:06:01,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:06:01,195 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:06:01,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-02 17:06:02,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:06:02,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 1280 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 17:06:02,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:06:02,546 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 17:06:02,546 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:06:02,583 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 17:06:02,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325857936] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:06:02,584 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 17:06:02,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 8 [2023-12-02 17:06:02,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656652687] [2023-12-02 17:06:02,584 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 17:06:02,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 17:06:02,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:06:02,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 17:06:02,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 17:06:02,586 INFO L87 Difference]: Start difference. First operand 1876 states and 2148 transitions. Second operand has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 8 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 17:06:07,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:06:07,689 INFO L93 Difference]: Finished difference Result 1885 states and 2160 transitions. [2023-12-02 17:06:07,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 17:06:07,690 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 8 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 10 [2023-12-02 17:06:07,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:06:07,700 INFO L225 Difference]: With dead ends: 1885 [2023-12-02 17:06:07,700 INFO L226 Difference]: Without dead ends: 1884 [2023-12-02 17:06:07,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2023-12-02 17:06:07,701 INFO L413 NwaCegarLoop]: 1951 mSDtfsCounter, 6 mSDsluCounter, 7798 mSDsCounter, 0 mSdLazyCounter, 1004 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 9749 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:06:07,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 9749 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1004 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-12-02 17:06:07,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1884 states. [2023-12-02 17:06:07,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1884 to 1884. [2023-12-02 17:06:07,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1884 states, 828 states have (on average 2.404589371980676) internal successors, (1991), 1799 states have internal predecessors, (1991), 95 states have call successors, (95), 21 states have call predecessors, (95), 20 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2023-12-02 17:06:07,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1884 states to 1884 states and 2158 transitions. [2023-12-02 17:06:07,734 INFO L78 Accepts]: Start accepts. Automaton has 1884 states and 2158 transitions. Word has length 10 [2023-12-02 17:06:07,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:06:07,734 INFO L495 AbstractCegarLoop]: Abstraction has 1884 states and 2158 transitions. [2023-12-02 17:06:07,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 8 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 17:06:07,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1884 states and 2158 transitions. [2023-12-02 17:06:07,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 17:06:07,735 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:06:07,735 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:06:07,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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)] Ended with exit code 0 [2023-12-02 17:06:07,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-02 17:06:08,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-02 17:06:08,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:06:08,338 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [FloppyProcessQueuedRequestsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, FloppyProcessQueuedRequestsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 952 more)] === [2023-12-02 17:06:08,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:06:08,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1725267639, now seen corresponding path program 2 times [2023-12-02 17:06:08,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:06:08,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641028634] [2023-12-02 17:06:08,340 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 17:06:08,340 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 17:06:08,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:06:08,341 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:06:08,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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)] Waiting until timeout for monitored process [2023-12-02 17:06:10,833 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-02 17:06:10,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:06:10,876 INFO L262 TraceCheckSpWp]: Trace formula consists of 1269 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 17:06:10,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:06:10,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:06:10,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:06:10,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:06:10,976 INFO L349 Elim1Store]: treesize reduction 94, result has 13.8 percent of original size [2023-12-02 17:06:10,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 51 treesize of output 40 [2023-12-02 17:06:11,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:06:11,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:06:11,105 INFO L349 Elim1Store]: treesize reduction 136, result has 12.3 percent of original size [2023-12-02 17:06:11,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 60 treesize of output 48 [2023-12-02 17:06:11,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:06:11,215 INFO L349 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2023-12-02 17:06:11,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 42 treesize of output 37 [2023-12-02 17:06:11,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:06:11,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:06:11,309 INFO L349 Elim1Store]: treesize reduction 44, result has 25.4 percent of original size [2023-12-02 17:06:11,309 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 33 treesize of output 29 [2023-12-02 17:06:11,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:06:11,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:06:11,393 INFO L349 Elim1Store]: treesize reduction 44, result has 25.4 percent of original size [2023-12-02 17:06:11,393 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 33 treesize of output 29 [2023-12-02 17:06:11,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:06:11,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:06:11,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:06:11,494 INFO L349 Elim1Store]: treesize reduction 94, result has 13.8 percent of original size [2023-12-02 17:06:11,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 51 treesize of output 40 [2023-12-02 17:06:13,713 INFO L349 Elim1Store]: treesize reduction 52, result has 66.0 percent of original size [2023-12-02 17:06:13,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 110 treesize of output 197 [2023-12-02 17:07:17,867 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 17:07:17,867 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:07:17,867 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:07:17,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641028634] [2023-12-02 17:07:17,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [641028634] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:07:17,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:07:17,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 17:07:17,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940923437] [2023-12-02 17:07:17,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:07:17,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 17:07:17,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:07:17,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 17:07:17,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:07:17,868 INFO L87 Difference]: Start difference. First operand 1884 states and 2158 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:07:45,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:07:47,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:07:47,559 INFO L93 Difference]: Finished difference Result 2195 states and 2548 transitions. [2023-12-02 17:07:47,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 17:07:47,560 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2023-12-02 17:07:47,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:07:47,570 INFO L225 Difference]: With dead ends: 2195 [2023-12-02 17:07:47,570 INFO L226 Difference]: Without dead ends: 2195 [2023-12-02 17:07:47,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:07:47,571 INFO L413 NwaCegarLoop]: 1331 mSDtfsCounter, 1729 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 2073 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1729 SdHoareTripleChecker+Valid, 2560 SdHoareTripleChecker+Invalid, 2089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2073 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.6s IncrementalHoareTripleChecker+Time [2023-12-02 17:07:47,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1729 Valid, 2560 Invalid, 2089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2073 Invalid, 1 Unknown, 0 Unchecked, 29.6s Time] [2023-12-02 17:07:47,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2195 states. [2023-12-02 17:07:47,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2195 to 2041. [2023-12-02 17:07:47,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2041 states, 959 states have (on average 2.367049009384776) internal successors, (2270), 1934 states have internal predecessors, (2270), 112 states have call successors, (112), 31 states have call predecessors, (112), 30 states have return successors, (91), 85 states have call predecessors, (91), 89 states have call successors, (91) [2023-12-02 17:07:47,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2041 states to 2041 states and 2473 transitions. [2023-12-02 17:07:47,610 INFO L78 Accepts]: Start accepts. Automaton has 2041 states and 2473 transitions. Word has length 13 [2023-12-02 17:07:47,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:07:47,610 INFO L495 AbstractCegarLoop]: Abstraction has 2041 states and 2473 transitions. [2023-12-02 17:07:47,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:07:47,610 INFO L276 IsEmpty]: Start isEmpty. Operand 2041 states and 2473 transitions. [2023-12-02 17:07:47,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 17:07:47,611 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:07:47,611 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:07:47,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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)] Ended with exit code 0 [2023-12-02 17:07:47,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:07:47,811 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [FloppyProcessQueuedRequestsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, FloppyProcessQueuedRequestsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 952 more)] === [2023-12-02 17:07:47,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:07:47,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1725267638, now seen corresponding path program 1 times [2023-12-02 17:07:47,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:07:47,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [51082665] [2023-12-02 17:07:47,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:07:47,821 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 17:07:47,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:07:47,823 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:07:47,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:07:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:07:48,820 INFO L262 TraceCheckSpWp]: Trace formula consists of 1313 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 17:07:48,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:07:48,911 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:07:48,911 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:07:49,151 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:07:49,152 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:07:49,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [51082665] [2023-12-02 17:07:49,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [51082665] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:07:49,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1698337045] [2023-12-02 17:07:49,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:07:49,152 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:07:49,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:07:49,161 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:07:49,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-02 17:07:50,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:07:50,633 INFO L262 TraceCheckSpWp]: Trace formula consists of 1313 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 17:07:50,634 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:07:50,654 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:07:50,655 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:07:50,735 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:07:50,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1698337045] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:07:50,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572709645] [2023-12-02 17:07:50,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:07:50,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:07:50,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:07:50,737 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:07:50,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-02 17:07:52,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:07:52,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 1313 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 17:07:52,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:07:52,424 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:07:52,424 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:07:52,720 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:07:52,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572709645] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:07:52,721 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 17:07:52,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 20 [2023-12-02 17:07:52,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723128220] [2023-12-02 17:07:52,721 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 17:07:52,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-02 17:07:52,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:07:52,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-02 17:07:52,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=248, Unknown=0, NotChecked=0, Total=380 [2023-12-02 17:07:52,723 INFO L87 Difference]: Start difference. First operand 2041 states and 2473 transitions. Second operand has 20 states, 17 states have (on average 1.411764705882353) internal successors, (24), 20 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 17:08:01,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:08:01,707 INFO L93 Difference]: Finished difference Result 2055 states and 2491 transitions. [2023-12-02 17:08:01,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-02 17:08:01,709 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 1.411764705882353) internal successors, (24), 20 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 13 [2023-12-02 17:08:01,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:08:01,719 INFO L225 Difference]: With dead ends: 2055 [2023-12-02 17:08:01,719 INFO L226 Difference]: Without dead ends: 2050 [2023-12-02 17:08:01,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=376, Invalid=680, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 17:08:01,720 INFO L413 NwaCegarLoop]: 1949 mSDtfsCounter, 12 mSDsluCounter, 13633 mSDsCounter, 0 mSdLazyCounter, 1698 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 15582 SdHoareTripleChecker+Invalid, 1720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-12-02 17:08:01,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 15582 Invalid, 1720 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 1698 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2023-12-02 17:08:01,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050 states. [2023-12-02 17:08:01,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050 to 2050. [2023-12-02 17:08:01,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2050 states, 968 states have (on average 2.352272727272727) internal successors, (2277), 1943 states have internal predecessors, (2277), 112 states have call successors, (112), 31 states have call predecessors, (112), 30 states have return successors, (91), 85 states have call predecessors, (91), 89 states have call successors, (91) [2023-12-02 17:08:01,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2050 states to 2050 states and 2480 transitions. [2023-12-02 17:08:01,767 INFO L78 Accepts]: Start accepts. Automaton has 2050 states and 2480 transitions. Word has length 13 [2023-12-02 17:08:01,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:08:01,767 INFO L495 AbstractCegarLoop]: Abstraction has 2050 states and 2480 transitions. [2023-12-02 17:08:01,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 1.411764705882353) internal successors, (24), 20 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 17:08:01,768 INFO L276 IsEmpty]: Start isEmpty. Operand 2050 states and 2480 transitions. [2023-12-02 17:08:01,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 17:08:01,768 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:08:01,769 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:08:01,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-02 17:08:01,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:08:02,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-12-02 17:08:02,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:08:02,370 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [FloppyProcessQueuedRequestsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, FloppyProcessQueuedRequestsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 952 more)] === [2023-12-02 17:08:02,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:08:02,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1621756874, now seen corresponding path program 2 times [2023-12-02 17:08:02,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:08:02,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [324060919] [2023-12-02 17:08:02,371 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 17:08:02,372 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 17:08:02,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:08:02,372 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:08:02,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:08:05,801 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-02 17:08:05,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:08:05,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 1269 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 17:08:05,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:08:05,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:05,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:05,877 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 17:08:05,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:05,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:05,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-12-02 17:08:05,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:05,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:05,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:05,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:05,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2023-12-02 17:08:06,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,036 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 17:08:06,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,067 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:08:06,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,110 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 17:08:06,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,184 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 17:08:06,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,219 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 17:08:06,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2023-12-02 17:08:06,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,333 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 17:08:06,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,423 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 1 [2023-12-02 17:08:06,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2023-12-02 17:08:06,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,530 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 17:08:06,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,568 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 17:08:06,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,632 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 17:08:06,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,668 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 17:08:06,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:08:06,969 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 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-02 17:08:07,040 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 17:08:07,040 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:08:07,040 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:08:07,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [324060919] [2023-12-02 17:08:07,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [324060919] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:08:07,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:08:07,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:08:07,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91587854] [2023-12-02 17:08:07,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:08:07,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 17:08:07,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:08:07,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 17:08:07,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:08:07,042 INFO L87 Difference]: Start difference. First operand 2050 states and 2480 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:08:36,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:08:36,394 INFO L93 Difference]: Finished difference Result 2081 states and 2523 transitions. [2023-12-02 17:08:36,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 17:08:36,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2023-12-02 17:08:36,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:08:36,407 INFO L225 Difference]: With dead ends: 2081 [2023-12-02 17:08:36,407 INFO L226 Difference]: Without dead ends: 2081 [2023-12-02 17:08:36,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:08:36,408 INFO L413 NwaCegarLoop]: 1909 mSDtfsCounter, 144 mSDsluCounter, 3316 mSDsCounter, 0 mSdLazyCounter, 3149 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 5225 SdHoareTripleChecker+Invalid, 3153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:08:36,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 5225 Invalid, 3153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3149 Invalid, 0 Unknown, 0 Unchecked, 29.2s Time] [2023-12-02 17:08:36,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2081 states. [2023-12-02 17:08:36,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2081 to 2055. [2023-12-02 17:08:36,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2055 states, 972 states have (on average 2.346707818930041) internal successors, (2281), 1946 states have internal predecessors, (2281), 112 states have call successors, (112), 33 states have call predecessors, (112), 32 states have return successors, (91), 85 states have call predecessors, (91), 89 states have call successors, (91) [2023-12-02 17:08:36,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2055 states to 2055 states and 2484 transitions. [2023-12-02 17:08:36,456 INFO L78 Accepts]: Start accepts. Automaton has 2055 states and 2484 transitions. Word has length 19 [2023-12-02 17:08:36,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:08:36,457 INFO L495 AbstractCegarLoop]: Abstraction has 2055 states and 2484 transitions. [2023-12-02 17:08:36,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:08:36,457 INFO L276 IsEmpty]: Start isEmpty. Operand 2055 states and 2484 transitions. [2023-12-02 17:08:36,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-02 17:08:36,457 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:08:36,458 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:08:36,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:08:36,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:08:36,659 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [FloppyProcessQueuedRequestsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, FloppyProcessQueuedRequestsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 952 more)] === [2023-12-02 17:08:36,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:08:36,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1265084939, now seen corresponding path program 1 times [2023-12-02 17:08:36,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:08:36,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1886066812] [2023-12-02 17:08:36,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:08:36,662 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 17:08:36,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:08:36,663 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:08:36,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:08:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:08:37,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 1392 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 17:08:37,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:08:38,174 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:08:38,174 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:08:38,994 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:08:38,995 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:08:38,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1886066812] [2023-12-02 17:08:38,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1886066812] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:08:38,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1087133076] [2023-12-02 17:08:38,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:08:38,995 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:08:38,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:08:38,996 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:08:38,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-12-02 17:08:40,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:08:40,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 1392 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 17:08:40,801 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:08:40,842 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:08:40,842 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:08:41,002 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:08:41,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1087133076] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:08:41,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761569340] [2023-12-02 17:08:41,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:08:41,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:08:41,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:08:41,004 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:08:41,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-02 17:08:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:08:42,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 1392 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 17:08:42,753 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:08:42,914 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:08:42,914 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:08:44,152 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:08:44,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761569340] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:08:44,152 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 17:08:44,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14, 14, 14, 14] total 38 [2023-12-02 17:08:44,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726964390] [2023-12-02 17:08:44,153 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 17:08:44,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-12-02 17:08:44,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:08:44,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-12-02 17:08:44,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=447, Invalid=959, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 17:08:44,155 INFO L87 Difference]: Start difference. First operand 2055 states and 2484 transitions. Second operand has 38 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 38 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 17:09:03,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:09:03,525 INFO L93 Difference]: Finished difference Result 2081 states and 2520 transitions. [2023-12-02 17:09:03,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-12-02 17:09:03,526 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 38 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2023-12-02 17:09:03,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:09:03,534 INFO L225 Difference]: With dead ends: 2081 [2023-12-02 17:09:03,534 INFO L226 Difference]: Without dead ends: 2073 [2023-12-02 17:09:03,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1438, Invalid=2852, Unknown=0, NotChecked=0, Total=4290 [2023-12-02 17:09:03,536 INFO L413 NwaCegarLoop]: 1948 mSDtfsCounter, 21 mSDsluCounter, 25308 mSDsCounter, 0 mSdLazyCounter, 3144 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 27256 SdHoareTripleChecker+Invalid, 3199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 3144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2023-12-02 17:09:03,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 27256 Invalid, 3199 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [55 Valid, 3144 Invalid, 0 Unknown, 0 Unchecked, 17.3s Time] [2023-12-02 17:09:03,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2073 states. [2023-12-02 17:09:03,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2073 to 2073. [2023-12-02 17:09:03,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2073 states, 990 states have (on average 2.3222222222222224) internal successors, (2299), 1964 states have internal predecessors, (2299), 112 states have call successors, (112), 33 states have call predecessors, (112), 32 states have return successors, (91), 85 states have call predecessors, (91), 89 states have call successors, (91) [2023-12-02 17:09:03,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 2502 transitions. [2023-12-02 17:09:03,578 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 2502 transitions. Word has length 20 [2023-12-02 17:09:03,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:09:03,578 INFO L495 AbstractCegarLoop]: Abstraction has 2073 states and 2502 transitions. [2023-12-02 17:09:03,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 38 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 17:09:03,578 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 2502 transitions. [2023-12-02 17:09:03,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-02 17:09:03,579 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:09:03,580 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:09:03,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:09:03,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2023-12-02 17:09:04,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-12-02 17:09:04,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:09:04,181 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [FloppyProcessQueuedRequestsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, FloppyProcessQueuedRequestsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 952 more)] === [2023-12-02 17:09:04,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:09:04,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1082818315, now seen corresponding path program 2 times [2023-12-02 17:09:04,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:09:04,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [493593985] [2023-12-02 17:09:04,183 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 17:09:04,183 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 17:09:04,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:09:04,184 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:09:04,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:09:07,084 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-02 17:09:07,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:09:07,131 INFO L262 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 17:09:07,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:09:07,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:09:07,379 INFO L349 Elim1Store]: treesize reduction 410, result has 10.7 percent of original size [2023-12-02 17:09:07,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 91 treesize of output 105 [2023-12-02 17:09:07,638 INFO L349 Elim1Store]: treesize reduction 276, result has 14.0 percent of original size [2023-12-02 17:09:07,639 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 17 case distinctions, treesize of input 69 treesize of output 86 [2023-12-02 17:09:09,777 INFO L349 Elim1Store]: treesize reduction 64, result has 31.2 percent of original size [2023-12-02 17:09:09,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 56 [2023-12-02 17:09:09,946 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-02 17:09:09,946 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:09:09,946 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:09:09,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [493593985] [2023-12-02 17:09:09,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [493593985] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:09:09,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:09:09,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 17:09:09,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265218609] [2023-12-02 17:09:09,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:09:09,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:09:09,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:09:09,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:09:09,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:09:09,947 INFO L87 Difference]: Start difference. First operand 2073 states and 2502 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:09:24,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:09:24,856 INFO L93 Difference]: Finished difference Result 2945 states and 3431 transitions. [2023-12-02 17:09:24,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:09:24,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2023-12-02 17:09:24,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:09:24,867 INFO L225 Difference]: With dead ends: 2945 [2023-12-02 17:09:24,867 INFO L226 Difference]: Without dead ends: 2945 [2023-12-02 17:09:24,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:09:24,868 INFO L413 NwaCegarLoop]: 1338 mSDtfsCounter, 1679 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 1571 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1679 SdHoareTripleChecker+Valid, 2141 SdHoareTripleChecker+Invalid, 1587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2023-12-02 17:09:24,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1679 Valid, 2141 Invalid, 1587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1571 Invalid, 0 Unknown, 0 Unchecked, 14.8s Time] [2023-12-02 17:09:24,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2945 states. [2023-12-02 17:09:24,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2945 to 2438. [2023-12-02 17:09:24,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2438 states, 1326 states have (on average 2.330316742081448) internal successors, (3090), 2301 states have internal predecessors, (3090), 138 states have call successors, (138), 46 states have call predecessors, (138), 43 states have return successors, (117), 101 states have call predecessors, (117), 115 states have call successors, (117) [2023-12-02 17:09:24,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2438 states to 2438 states and 3345 transitions. [2023-12-02 17:09:24,921 INFO L78 Accepts]: Start accepts. Automaton has 2438 states and 3345 transitions. Word has length 32 [2023-12-02 17:09:24,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:09:24,922 INFO L495 AbstractCegarLoop]: Abstraction has 2438 states and 3345 transitions. [2023-12-02 17:09:24,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:09:24,922 INFO L276 IsEmpty]: Start isEmpty. Operand 2438 states and 3345 transitions. [2023-12-02 17:09:24,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-02 17:09:24,923 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:09:24,923 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:09:24,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:09:25,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:09:25,124 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [FloppyProcessQueuedRequestsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, FloppyProcessQueuedRequestsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 952 more)] === [2023-12-02 17:09:25,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:09:25,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1082818314, now seen corresponding path program 1 times [2023-12-02 17:09:25,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:09:25,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1221300609] [2023-12-02 17:09:25,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:09:25,125 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 17:09:25,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:09:25,126 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:09:25,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 (19)] Waiting until timeout for monitored process [2023-12-02 17:09:26,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:09:26,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 1524 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-02 17:09:26,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:09:27,189 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:09:27,189 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:09:29,914 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:09:29,915 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:09:29,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1221300609] [2023-12-02 17:09:29,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1221300609] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:09:29,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [400270058] [2023-12-02 17:09:29,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:09:29,915 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:09:29,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:09:29,916 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:09:29,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-12-02 17:09:31,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:09:31,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 1524 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-02 17:09:31,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:09:31,958 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:09:31,959 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:09:32,351 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:09:32,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [400270058] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:09:32,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319328281] [2023-12-02 17:09:32,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:09:32,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:09:32,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:09:32,353 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:09:32,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-02 17:09:33,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:09:34,141 INFO L262 TraceCheckSpWp]: Trace formula consists of 1524 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-02 17:09:34,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:09:34,362 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:09:34,363 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:09:38,762 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:09:38,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319328281] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:09:38,762 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 17:09:38,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 26, 26, 26, 26] total 74 [2023-12-02 17:09:38,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399303294] [2023-12-02 17:09:38,763 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 17:09:38,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2023-12-02 17:09:38,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:09:38,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2023-12-02 17:09:38,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1617, Invalid=3785, Unknown=0, NotChecked=0, Total=5402 [2023-12-02 17:09:38,768 INFO L87 Difference]: Start difference. First operand 2438 states and 3345 transitions. Second operand has 74 states, 71 states have (on average 1.1126760563380282) internal successors, (79), 74 states have internal predecessors, (79), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 17:10:20,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:10:20,733 INFO L93 Difference]: Finished difference Result 2512 states and 3441 transitions. [2023-12-02 17:10:20,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2023-12-02 17:10:20,735 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 71 states have (on average 1.1126760563380282) internal successors, (79), 74 states have internal predecessors, (79), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 32 [2023-12-02 17:10:20,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:10:20,747 INFO L225 Difference]: With dead ends: 2512 [2023-12-02 17:10:20,748 INFO L226 Difference]: Without dead ends: 2486 [2023-12-02 17:10:20,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1447 ImplicationChecksByTransitivity, 15.2s TimeCoverageRelationStatistics Valid=5614, Invalid=11678, Unknown=0, NotChecked=0, Total=17292 [2023-12-02 17:10:20,753 INFO L413 NwaCegarLoop]: 1945 mSDtfsCounter, 38 mSDsluCounter, 50538 mSDsCounter, 0 mSdLazyCounter, 6840 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 52483 SdHoareTripleChecker+Invalid, 6911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 6840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.4s IncrementalHoareTripleChecker+Time [2023-12-02 17:10:20,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 52483 Invalid, 6911 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [71 Valid, 6840 Invalid, 0 Unknown, 0 Unchecked, 33.4s Time] [2023-12-02 17:10:20,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2486 states. [2023-12-02 17:10:20,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2486 to 2486. [2023-12-02 17:10:20,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2486 states, 1374 states have (on average 2.2838427947598254) internal successors, (3138), 2349 states have internal predecessors, (3138), 138 states have call successors, (138), 46 states have call predecessors, (138), 43 states have return successors, (117), 101 states have call predecessors, (117), 115 states have call successors, (117) [2023-12-02 17:10:20,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2486 states to 2486 states and 3393 transitions. [2023-12-02 17:10:20,789 INFO L78 Accepts]: Start accepts. Automaton has 2486 states and 3393 transitions. Word has length 32 [2023-12-02 17:10:20,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:10:20,789 INFO L495 AbstractCegarLoop]: Abstraction has 2486 states and 3393 transitions. [2023-12-02 17:10:20,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 71 states have (on average 1.1126760563380282) internal successors, (79), 74 states have internal predecessors, (79), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 17:10:20,789 INFO L276 IsEmpty]: Start isEmpty. Operand 2486 states and 3393 transitions. [2023-12-02 17:10:20,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-02 17:10:20,791 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:10:20,791 INFO L195 NwaCegarLoop]: trace histogram [46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:10:20,802 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2023-12-02 17:10:21,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 (19)] Ended with exit code 0 [2023-12-02 17:10:21,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-12-02 17:10:21,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:10:21,392 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [FloppyProcessQueuedRequestsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, FloppyProcessQueuedRequestsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 952 more)] === [2023-12-02 17:10:21,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:10:21,392 INFO L85 PathProgramCache]: Analyzing trace with hash 162944758, now seen corresponding path program 2 times [2023-12-02 17:10:21,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:10:21,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [71197888] [2023-12-02 17:10:21,394 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 17:10:21,394 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 17:10:21,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:10:21,395 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:10:21,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:10:25,991 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-02 17:10:25,991 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:10:26,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 17:10:26,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:10:26,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:26,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:26,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:26,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:26,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:26,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:26,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:26,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:26,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:26,218 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 17:10:26,230 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 17:10:26,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:26,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:26,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:26,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:26,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:26,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:26,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:26,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:26,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:26,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:26,583 INFO L349 Elim1Store]: treesize reduction 140, result has 16.7 percent of original size [2023-12-02 17:10:26,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 69 [2023-12-02 17:10:26,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 9 [2023-12-02 17:10:26,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:26,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:26,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:26,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:26,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:26,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:26,937 INFO L349 Elim1Store]: treesize reduction 105, result has 18.6 percent of original size [2023-12-02 17:10:26,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 45 treesize of output 62 [2023-12-02 17:10:26,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 9 [2023-12-02 17:10:27,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:27,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:27,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:27,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:27,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:27,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:27,093 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 17:10:27,101 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 17:10:27,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:27,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:27,146 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 17:10:27,154 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 17:10:27,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:27,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:27,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:27,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:27,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:27,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:27,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:27,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:27,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:27,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:27,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:27,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:27,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:27,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:27,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:27,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:27,312 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 17:10:27,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:27,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:27,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:27,356 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 17:10:27,379 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 17:10:27,396 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 17:10:27,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:31,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:10:31,589 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 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-02 17:10:31,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1081 trivial. 0 not checked. [2023-12-02 17:10:31,632 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:10:31,632 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:10:31,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [71197888] [2023-12-02 17:10:31,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [71197888] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:10:31,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:10:31,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 17:10:31,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346757513] [2023-12-02 17:10:31,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:10:31,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 17:10:31,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:10:31,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 17:10:31,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:10:31,634 INFO L87 Difference]: Start difference. First operand 2486 states and 3393 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:10:55,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:10:55,955 INFO L93 Difference]: Finished difference Result 3296 states and 3857 transitions. [2023-12-02 17:10:55,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 17:10:55,956 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2023-12-02 17:10:55,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:10:55,965 INFO L225 Difference]: With dead ends: 3296 [2023-12-02 17:10:55,965 INFO L226 Difference]: Without dead ends: 3296 [2023-12-02 17:10:55,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:10:55,966 INFO L413 NwaCegarLoop]: 785 mSDtfsCounter, 2489 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 3042 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2489 SdHoareTripleChecker+Valid, 1871 SdHoareTripleChecker+Invalid, 3060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:10:55,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2489 Valid, 1871 Invalid, 3060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3042 Invalid, 0 Unknown, 0 Unchecked, 24.2s Time] [2023-12-02 17:10:55,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3296 states. [2023-12-02 17:10:55,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3296 to 2644. [2023-12-02 17:10:55,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2644 states, 1509 states have (on average 2.263088137839629) internal successors, (3415), 2479 states have internal predecessors, (3415), 155 states have call successors, (155), 53 states have call predecessors, (155), 53 states have return successors, (137), 126 states have call predecessors, (137), 132 states have call successors, (137) [2023-12-02 17:10:56,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2644 states to 2644 states and 3707 transitions. [2023-12-02 17:10:56,003 INFO L78 Accepts]: Start accepts. Automaton has 2644 states and 3707 transitions. Word has length 56 [2023-12-02 17:10:56,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:10:56,003 INFO L495 AbstractCegarLoop]: Abstraction has 2644 states and 3707 transitions. [2023-12-02 17:10:56,003 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:10:56,003 INFO L276 IsEmpty]: Start isEmpty. Operand 2644 states and 3707 transitions. [2023-12-02 17:10:56,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-02 17:10:56,004 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:10:56,005 INFO L195 NwaCegarLoop]: trace histogram [46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:10:56,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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)] Ended with exit code 0 [2023-12-02 17:10:56,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:10:56,205 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [FloppyProcessQueuedRequestsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, FloppyProcessQueuedRequestsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 952 more)] === [2023-12-02 17:10:56,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:10:56,206 INFO L85 PathProgramCache]: Analyzing trace with hash 756379632, now seen corresponding path program 1 times [2023-12-02 17:10:56,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:10:56,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [714641777] [2023-12-02 17:10:56,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:10:56,208 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 17:10:56,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:10:56,209 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:10:56,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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)] Waiting until timeout for monitored process [2023-12-02 17:10:57,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:10:57,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 1818 conjuncts, 49 conjunts are in the unsatisfiable core [2023-12-02 17:10:57,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:11:00,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:11:00,610 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:11:10,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:11:10,786 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:11:10,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [714641777] [2023-12-02 17:11:10,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [714641777] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:11:10,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [912387316] [2023-12-02 17:11:10,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:11:10,787 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:11:10,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:11:10,788 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:11:10,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-12-02 17:11:12,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:11:13,063 INFO L262 TraceCheckSpWp]: Trace formula consists of 1818 conjuncts, 49 conjunts are in the unsatisfiable core [2023-12-02 17:11:13,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:11:13,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:11:13,236 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:11:14,401 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:11:14,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [912387316] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:11:14,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866024236] [2023-12-02 17:11:14,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:11:14,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:11:14,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:11:14,403 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:11:14,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-12-02 17:11:16,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:11:16,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 1818 conjuncts, 50 conjunts are in the unsatisfiable core [2023-12-02 17:11:16,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:11:16,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:11:16,782 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:11:33,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:11:33,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866024236] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:11:33,767 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 17:11:33,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50, 50, 50, 50, 50] total 146 [2023-12-02 17:11:33,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973418867] [2023-12-02 17:11:33,767 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 17:11:33,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 146 states [2023-12-02 17:11:33,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:11:33,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 146 interpolants. [2023-12-02 17:11:33,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6117, Invalid=15053, Unknown=0, NotChecked=0, Total=21170 [2023-12-02 17:11:33,788 INFO L87 Difference]: Start difference. First operand 2644 states and 3707 transitions. Second operand has 146 states, 143 states have (on average 1.062937062937063) internal successors, (152), 146 states have internal predecessors, (152), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 17:13:27,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:13:27,058 INFO L93 Difference]: Finished difference Result 2790 states and 3899 transitions. [2023-12-02 17:13:27,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2023-12-02 17:13:27,060 INFO L78 Accepts]: Start accepts. Automaton has has 146 states, 143 states have (on average 1.062937062937063) internal successors, (152), 146 states have internal predecessors, (152), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 57 [2023-12-02 17:13:27,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:13:27,065 INFO L225 Difference]: With dead ends: 2790 [2023-12-02 17:13:27,065 INFO L226 Difference]: Without dead ends: 2740 [2023-12-02 17:13:27,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 262 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5353 ImplicationChecksByTransitivity, 71.3s TimeCoverageRelationStatistics Valid=22174, Invalid=47258, Unknown=0, NotChecked=0, Total=69432 [2023-12-02 17:13:27,077 INFO L413 NwaCegarLoop]: 1941 mSDtfsCounter, 74 mSDsluCounter, 93119 mSDsCounter, 0 mSdLazyCounter, 15646 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 95060 SdHoareTripleChecker+Invalid, 15860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 15646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.9s IncrementalHoareTripleChecker+Time [2023-12-02 17:13:27,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 95060 Invalid, 15860 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [214 Valid, 15646 Invalid, 0 Unknown, 0 Unchecked, 67.9s Time] [2023-12-02 17:13:27,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states. [2023-12-02 17:13:27,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 2740. [2023-12-02 17:13:27,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2740 states, 1605 states have (on average 2.187538940809969) internal successors, (3511), 2575 states have internal predecessors, (3511), 155 states have call successors, (155), 53 states have call predecessors, (155), 53 states have return successors, (137), 126 states have call predecessors, (137), 132 states have call successors, (137) [2023-12-02 17:13:27,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2740 states to 2740 states and 3803 transitions. [2023-12-02 17:13:27,123 INFO L78 Accepts]: Start accepts. Automaton has 2740 states and 3803 transitions. Word has length 57 [2023-12-02 17:13:27,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:13:27,123 INFO L495 AbstractCegarLoop]: Abstraction has 2740 states and 3803 transitions. [2023-12-02 17:13:27,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 146 states, 143 states have (on average 1.062937062937063) internal successors, (152), 146 states have internal predecessors, (152), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 17:13:27,124 INFO L276 IsEmpty]: Start isEmpty. Operand 2740 states and 3803 transitions. [2023-12-02 17:13:27,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-02 17:13:27,125 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:13:27,125 INFO L195 NwaCegarLoop]: trace histogram [94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:13:27,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-12-02 17:13:27,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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)] Ended with exit code 0 [2023-12-02 17:13:27,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2023-12-02 17:13:27,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 17:13:27,726 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [FloppyProcessQueuedRequestsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, FloppyProcessQueuedRequestsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 952 more)] === [2023-12-02 17:13:27,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:13:27,726 INFO L85 PathProgramCache]: Analyzing trace with hash -454081552, now seen corresponding path program 2 times [2023-12-02 17:13:27,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:13:27,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1830986361] [2023-12-02 17:13:27,728 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 17:13:27,728 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 17:13:27,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:13:27,729 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:13:27,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 (26)] Waiting until timeout for monitored process [2023-12-02 17:13:29,743 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-02 17:13:29,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 17:13:29,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 1312 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 17:13:29,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:13:29,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:29,845 INFO L349 Elim1Store]: treesize reduction 19, result has 26.9 percent of original size [2023-12-02 17:13:29,845 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 26 treesize of output 15 [2023-12-02 17:13:29,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:29,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:29,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:29,880 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 0 case distinctions, treesize of input 17 treesize of output 1 [2023-12-02 17:13:29,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:29,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:29,933 INFO L349 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2023-12-02 17:13:29,933 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 24 treesize of output 1 [2023-12-02 17:13:29,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:29,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:29,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:29,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-02 17:13:29,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:29,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:29,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:29,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-02 17:13:29,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,033 INFO L349 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2023-12-02 17:13:30,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 1 [2023-12-02 17:13:30,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,073 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 0 case distinctions, treesize of input 22 treesize of output 1 [2023-12-02 17:13:30,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,145 INFO L349 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2023-12-02 17:13:30,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 1 [2023-12-02 17:13:30,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,188 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 0 case distinctions, treesize of input 22 treesize of output 1 [2023-12-02 17:13:30,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,264 INFO L349 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2023-12-02 17:13:30,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 1 [2023-12-02 17:13:30,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,293 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 15 treesize of output 1 [2023-12-02 17:13:30,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,347 INFO L349 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2023-12-02 17:13:30,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 1 [2023-12-02 17:13:30,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,402 INFO L349 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2023-12-02 17:13:30,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 1 [2023-12-02 17:13:30,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,432 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 0 case distinctions, treesize of input 17 treesize of output 1 [2023-12-02 17:13:30,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,485 INFO L349 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2023-12-02 17:13:30,485 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 24 treesize of output 1 [2023-12-02 17:13:30,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-02 17:13:30,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,559 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 0 case distinctions, treesize of input 22 treesize of output 1 [2023-12-02 17:13:30,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,631 INFO L349 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2023-12-02 17:13:30,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 1 [2023-12-02 17:13:30,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,677 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 20 treesize of output 1 [2023-12-02 17:13:30,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,757 INFO L349 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2023-12-02 17:13:30,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 1 [2023-12-02 17:13:30,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,802 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 20 treesize of output 1 [2023-12-02 17:13:30,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,872 INFO L349 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2023-12-02 17:13:30,873 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 29 treesize of output 1 [2023-12-02 17:13:30,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:30,998 INFO L349 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2023-12-02 17:13:30,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 1 [2023-12-02 17:13:31,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2023-12-02 17:13:31,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,120 INFO L349 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2023-12-02 17:13:31,120 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 24 treesize of output 1 [2023-12-02 17:13:31,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-02 17:13:31,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,201 INFO L349 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2023-12-02 17:13:31,201 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 24 treesize of output 1 [2023-12-02 17:13:31,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,229 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 15 treesize of output 1 [2023-12-02 17:13:31,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-02 17:13:31,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,311 INFO L349 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2023-12-02 17:13:31,312 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 24 treesize of output 1 [2023-12-02 17:13:31,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,387 INFO L349 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2023-12-02 17:13:31,387 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 29 treesize of output 1 [2023-12-02 17:13:31,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,429 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 20 treesize of output 1 [2023-12-02 17:13:31,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,461 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 15 treesize of output 1 [2023-12-02 17:13:31,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,517 INFO L349 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2023-12-02 17:13:31,517 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 24 treesize of output 1 [2023-12-02 17:13:31,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-02 17:13:31,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,601 INFO L349 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2023-12-02 17:13:31,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 1 [2023-12-02 17:13:31,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,643 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 20 treesize of output 1 [2023-12-02 17:13:31,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,717 INFO L349 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2023-12-02 17:13:31,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 1 [2023-12-02 17:13:31,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,771 INFO L349 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2023-12-02 17:13:31,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 1 [2023-12-02 17:13:31,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:31,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-02 17:13:33,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:13:33,220 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 0 case distinctions, treesize of input 16 treesize of output 13 [2023-12-02 17:13:33,330 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 17:13:33,330 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 14 treesize of output 20 [2023-12-02 17:13:33,383 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4465 trivial. 0 not checked. [2023-12-02 17:13:33,383 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:13:33,383 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:13:33,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1830986361] [2023-12-02 17:13:33,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1830986361] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:13:33,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:13:33,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:13:33,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169428913] [2023-12-02 17:13:33,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:13:33,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 17:13:33,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:13:33,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 17:13:33,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:13:33,385 INFO L87 Difference]: Start difference. First operand 2740 states and 3803 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:13:58,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:13:58,037 INFO L93 Difference]: Finished difference Result 3239 states and 3881 transitions. [2023-12-02 17:13:58,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 17:13:58,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 105 [2023-12-02 17:13:58,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:13:58,046 INFO L225 Difference]: With dead ends: 3239 [2023-12-02 17:13:58,047 INFO L226 Difference]: Without dead ends: 3239 [2023-12-02 17:13:58,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 99 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:13:58,047 INFO L413 NwaCegarLoop]: 1336 mSDtfsCounter, 1743 mSDsluCounter, 1783 mSDsCounter, 0 mSdLazyCounter, 2695 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1743 SdHoareTripleChecker+Valid, 3119 SdHoareTripleChecker+Invalid, 2712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.5s IncrementalHoareTripleChecker+Time [2023-12-02 17:13:58,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1743 Valid, 3119 Invalid, 2712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2695 Invalid, 0 Unknown, 0 Unchecked, 24.5s Time] [2023-12-02 17:13:58,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3239 states. [2023-12-02 17:13:58,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3239 to 2737. [2023-12-02 17:13:58,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2737 states, 1605 states have (on average 2.1856697819314643) internal successors, (3508), 2572 states have internal predecessors, (3508), 155 states have call successors, (155), 53 states have call predecessors, (155), 53 states have return successors, (137), 126 states have call predecessors, (137), 132 states have call successors, (137) [2023-12-02 17:13:58,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2737 states to 2737 states and 3800 transitions. [2023-12-02 17:13:58,093 INFO L78 Accepts]: Start accepts. Automaton has 2737 states and 3800 transitions. Word has length 105 [2023-12-02 17:13:58,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:13:58,094 INFO L495 AbstractCegarLoop]: Abstraction has 2737 states and 3800 transitions. [2023-12-02 17:13:58,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 17:13:58,094 INFO L276 IsEmpty]: Start isEmpty. Operand 2737 states and 3800 transitions. [2023-12-02 17:13:58,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-02 17:13:58,095 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:13:58,095 INFO L195 NwaCegarLoop]: trace histogram [94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:13:58,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 (26)] Forceful destruction successful, exit code 0 [2023-12-02 17:13:58,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:13:58,296 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [FloppyProcessQueuedRequestsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, FloppyProcessQueuedRequestsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 952 more)] === [2023-12-02 17:13:58,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:13:58,296 INFO L85 PathProgramCache]: Analyzing trace with hash -454081551, now seen corresponding path program 1 times [2023-12-02 17:13:58,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:13:58,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1282235755] [2023-12-02 17:13:58,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:13:58,298 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 17:13:58,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:13:58,299 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:13:58,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/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 17:13:59,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:13:59,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 2346 conjuncts, 97 conjunts are in the unsatisfiable core [2023-12-02 17:13:59,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:14:11,754 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:14:11,754 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:14:51,995 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:14:51,995 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:14:51,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1282235755] [2023-12-02 17:14:51,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1282235755] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:14:51,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1746414078] [2023-12-02 17:14:51,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:14:51,996 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:14:51,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:14:51,997 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:14:51,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-12-02 17:14:55,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:14:55,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 2346 conjuncts, 97 conjunts are in the unsatisfiable core [2023-12-02 17:14:55,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:14:55,459 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:14:55,459 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:14:59,912 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:14:59,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1746414078] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:14:59,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032920121] [2023-12-02 17:14:59,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:14:59,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:14:59,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:14:59,913 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:14:59,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc1da61-0d22-41ae-bdff-cf49aef8a7f2/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-12-02 17:15:01,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:15:02,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 2346 conjuncts, 98 conjunts are in the unsatisfiable core [2023-12-02 17:15:02,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:15:03,024 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:15:03,024 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:16:10,729 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 17:16:10,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032920121] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:16:10,729 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 17:16:10,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [98, 98, 98, 98, 98, 98] total 290 [2023-12-02 17:16:10,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532584967] [2023-12-02 17:16:10,730 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 17:16:10,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 290 states [2023-12-02 17:16:10,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:16:10,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 290 interpolants. [2023-12-02 17:16:10,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23757, Invalid=60053, Unknown=0, NotChecked=0, Total=83810 [2023-12-02 17:16:10,753 INFO L87 Difference]: Start difference. First operand 2737 states and 3800 transitions. Second operand has 290 states, 287 states have (on average 1.0313588850174216) internal successors, (296), 290 states have internal predecessors, (296), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)