./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/tee-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/tee-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 64bit --witnessprinter.graph.data.programhash bab52eb5923c15e4bc9c70f58b3e07f531d9c2f4fa12be32117f6f5f5ee2181e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:42:04,773 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:42:04,837 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf [2023-12-02 14:42:04,841 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:42:04,842 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:42:04,866 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:42:04,867 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:42:04,868 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:42:04,869 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:42:04,869 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:42:04,870 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:42:04,870 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:42:04,871 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:42:04,871 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 14:42:04,872 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:42:04,872 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:42:04,873 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 14:42:04,873 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 14:42:04,874 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:42:04,874 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 14:42:04,875 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 14:42:04,876 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 14:42:04,876 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 14:42:04,877 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 14:42:04,877 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:42:04,878 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 14:42:04,878 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:42:04,879 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 14:42:04,879 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 14:42:04,880 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-12-02 14:42:04,880 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:42:04,880 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 14:42:04,881 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 14:42:04,881 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:42:04,881 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:42:04,881 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 14:42:04,882 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:42:04,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:42:04,882 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:42:04,882 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:42:04,883 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 14:42:04,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 14:42:04,883 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:42:04,883 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:42:04,884 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:42:04,884 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_891b5424-bd4a-47da-b3e1-9c076d0f369f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bab52eb5923c15e4bc9c70f58b3e07f531d9c2f4fa12be32117f6f5f5ee2181e [2023-12-02 14:42:05,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:42:05,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:42:05,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:42:05,141 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:42:05,141 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:42:05,142 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/busybox-1.22.0/tee-2.i [2023-12-02 14:42:07,873 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:42:08,227 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:42:08,227 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/sv-benchmarks/c/busybox-1.22.0/tee-2.i [2023-12-02 14:42:08,253 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/data/d5d466af7/ca0dc4837b8f407297efa952f350ae29/FLAG78657229c [2023-12-02 14:42:08,265 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/data/d5d466af7/ca0dc4837b8f407297efa952f350ae29 [2023-12-02 14:42:08,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:42:08,270 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:42:08,271 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:42:08,271 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:42:08,275 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:42:08,276 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:42:08" (1/1) ... [2023-12-02 14:42:08,277 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b13016e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:08, skipping insertion in model container [2023-12-02 14:42:08,277 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:42:08" (1/1) ... [2023-12-02 14:42:08,356 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:42:09,395 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:42:09,421 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 14:42:09,422 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2f52f7f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:09, skipping insertion in model container [2023-12-02 14:42:09,422 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:42:09,423 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-12-02 14:42:09,424 INFO L158 Benchmark]: Toolchain (without parser) took 1153.96ms. Allocated memory is still 169.9MB. Free memory was 128.1MB in the beginning and 89.7MB in the end (delta: 38.4MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-12-02 14:42:09,425 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 111.1MB. Free memory is still 87.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:42:09,425 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1151.52ms. Allocated memory is still 169.9MB. Free memory was 127.4MB in the beginning and 89.7MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-12-02 14:42:09,427 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 111.1MB. Free memory is still 87.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1151.52ms. Allocated memory is still 169.9MB. Free memory was 127.4MB in the beginning and 89.7MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2217]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/tee-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 64bit --witnessprinter.graph.data.programhash bab52eb5923c15e4bc9c70f58b3e07f531d9c2f4fa12be32117f6f5f5ee2181e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:42:11,176 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:42:11,253 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf [2023-12-02 14:42:11,260 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:42:11,260 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:42:11,288 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:42:11,289 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:42:11,290 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:42:11,290 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:42:11,291 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:42:11,291 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:42:11,292 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:42:11,293 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:42:11,293 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:42:11,294 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:42:11,294 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:42:11,295 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 14:42:11,296 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 14:42:11,296 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:42:11,297 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 14:42:11,297 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:42:11,299 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 14:42:11,300 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 14:42:11,300 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-12-02 14:42:11,301 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:42:11,301 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 14:42:11,302 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 14:42:11,302 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 14:42:11,302 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 14:42:11,303 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:42:11,303 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:42:11,304 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 14:42:11,304 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 14:42:11,304 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:42:11,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:42:11,305 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:42:11,305 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:42:11,305 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 14:42:11,305 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 14:42:11,306 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:42:11,306 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:42:11,306 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:42:11,306 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_891b5424-bd4a-47da-b3e1-9c076d0f369f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bab52eb5923c15e4bc9c70f58b3e07f531d9c2f4fa12be32117f6f5f5ee2181e [2023-12-02 14:42:11,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:42:11,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:42:11,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:42:11,601 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:42:11,602 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:42:11,603 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/busybox-1.22.0/tee-2.i [2023-12-02 14:42:14,313 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:42:14,659 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:42:14,660 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/sv-benchmarks/c/busybox-1.22.0/tee-2.i [2023-12-02 14:42:14,684 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/data/cb6b02bb5/11a5502927b24bdd80afe7caa6cf6e71/FLAG68cf24df6 [2023-12-02 14:42:14,699 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/data/cb6b02bb5/11a5502927b24bdd80afe7caa6cf6e71 [2023-12-02 14:42:14,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:42:14,704 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:42:14,705 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:42:14,705 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:42:14,710 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:42:14,711 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:42:14" (1/1) ... [2023-12-02 14:42:14,712 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@549b31b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:14, skipping insertion in model container [2023-12-02 14:42:14,713 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:42:14" (1/1) ... [2023-12-02 14:42:14,799 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:42:15,864 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:42:15,893 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-02 14:42:15,917 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:42:16,032 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:42:16,042 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 14:42:16,141 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:42:16,272 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:42:16,272 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:42:16,273 WARN L675 CHandler]: The function fopen is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:42:16,273 WARN L675 CHandler]: The function ferror is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:42:16,273 WARN L675 CHandler]: The function setbuf is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:42:16,273 WARN L675 CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:42:16,273 WARN L675 CHandler]: The function fwrite is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:42:16,279 INFO L206 MainTranslator]: Completed translation [2023-12-02 14:42:16,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:16 WrapperNode [2023-12-02 14:42:16,280 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:42:16,281 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 14:42:16,281 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 14:42:16,281 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 14:42:16,287 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:16" (1/1) ... [2023-12-02 14:42:16,362 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:16" (1/1) ... [2023-12-02 14:42:16,436 INFO L138 Inliner]: procedures = 589, calls = 420, calls flagged for inlining = 28, calls inlined = 26, statements flattened = 1530 [2023-12-02 14:42:16,437 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 14:42:16,437 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 14:42:16,438 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 14:42:16,438 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 14:42:16,447 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:16" (1/1) ... [2023-12-02 14:42:16,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:16" (1/1) ... [2023-12-02 14:42:16,462 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:16" (1/1) ... [2023-12-02 14:42:16,462 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:16" (1/1) ... [2023-12-02 14:42:16,518 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:16" (1/1) ... [2023-12-02 14:42:16,530 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:16" (1/1) ... [2023-12-02 14:42:16,547 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:16" (1/1) ... [2023-12-02 14:42:16,557 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:16" (1/1) ... [2023-12-02 14:42:16,572 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 14:42:16,573 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 14:42:16,573 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 14:42:16,573 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 14:42:16,574 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:16" (1/1) ... [2023-12-02 14:42:16,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:42:16,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:42:16,605 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 14:42:16,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 14:42:16,644 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-12-02 14:42:16,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 14:42:16,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 14:42:16,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-12-02 14:42:16,645 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2023-12-02 14:42:16,645 INFO L130 BoogieDeclarations]: Found specification of procedure xzalloc [2023-12-02 14:42:16,645 INFO L138 BoogieDeclarations]: Found implementation of procedure xzalloc [2023-12-02 14:42:16,645 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-12-02 14:42:16,646 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-12-02 14:42:16,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 14:42:16,646 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-12-02 14:42:16,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 14:42:16,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 14:42:16,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2023-12-02 14:42:16,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2023-12-02 14:42:16,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2023-12-02 14:42:16,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2023-12-02 14:42:16,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 14:42:16,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 14:42:16,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-02 14:42:16,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-12-02 14:42:16,647 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-12-02 14:42:16,647 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2023-12-02 14:42:16,647 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2023-12-02 14:42:16,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 14:42:16,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 14:42:16,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 14:42:16,648 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2023-12-02 14:42:16,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 14:42:16,648 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 14:42:16,648 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 14:42:16,648 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 14:42:16,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 14:42:16,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 14:42:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2023-12-02 14:42:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-12-02 14:42:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-12-02 14:42:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 14:42:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 14:42:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-12-02 14:42:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2023-12-02 14:42:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-12-02 14:42:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2023-12-02 14:42:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-12-02 14:42:16,650 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-12-02 14:42:16,650 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-12-02 14:42:16,650 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2023-12-02 14:42:17,063 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 14:42:17,066 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 14:42:17,267 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 14:42:25,853 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 14:42:26,044 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 14:42:26,044 INFO L309 CfgBuilder]: Removed 30 assume(true) statements. [2023-12-02 14:42:26,045 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:42:26 BoogieIcfgContainer [2023-12-02 14:42:26,045 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 14:42:26,048 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 14:42:26,048 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 14:42:26,050 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 14:42:26,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:42:14" (1/3) ... [2023-12-02 14:42:26,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@633aeb17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:42:26, skipping insertion in model container [2023-12-02 14:42:26,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:16" (2/3) ... [2023-12-02 14:42:26,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@633aeb17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:42:26, skipping insertion in model container [2023-12-02 14:42:26,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:42:26" (3/3) ... [2023-12-02 14:42:26,053 INFO L112 eAbstractionObserver]: Analyzing ICFG tee-2.i [2023-12-02 14:42:26,067 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 14:42:26,067 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 467 error locations. [2023-12-02 14:42:26,119 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:42:26,124 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;@70b05329, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:42:26,124 INFO L358 AbstractCegarLoop]: Starting to check reachability of 467 error locations. [2023-12-02 14:42:26,132 INFO L276 IsEmpty]: Start isEmpty. Operand has 1001 states, 504 states have (on average 2.2718253968253967) internal successors, (1145), 968 states have internal predecessors, (1145), 25 states have call successors, (25), 7 states have call predecessors, (25), 7 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-02 14:42:26,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-12-02 14:42:26,138 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:42:26,139 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-12-02 14:42:26,139 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 464 more)] === [2023-12-02 14:42:26,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:42:26,145 INFO L85 PathProgramCache]: Analyzing trace with hash 67777, now seen corresponding path program 1 times [2023-12-02 14:42:26,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:42:26,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [751561617] [2023-12-02 14:42:26,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:42:26,157 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 14:42:26,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:42:26,159 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:42:26,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:42:26,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:42:26,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 14:42:26,520 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:42:26,583 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 7 [2023-12-02 14:42:26,601 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 14:42:26,601 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:42:26,601 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:42:26,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [751561617] [2023-12-02 14:42:26,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [751561617] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:42:26,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:42:26,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 14:42:26,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873327954] [2023-12-02 14:42:26,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:42:26,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:42:26,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:42:26,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:42:26,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:42:26,646 INFO L87 Difference]: Start difference. First operand has 1001 states, 504 states have (on average 2.2718253968253967) internal successors, (1145), 968 states have internal predecessors, (1145), 25 states have call successors, (25), 7 states have call predecessors, (25), 7 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) 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 14:42:29,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:42:29,996 INFO L93 Difference]: Finished difference Result 1145 states and 1327 transitions. [2023-12-02 14:42:29,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:42:29,998 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 14:42:29,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:42:30,018 INFO L225 Difference]: With dead ends: 1145 [2023-12-02 14:42:30,018 INFO L226 Difference]: Without dead ends: 1144 [2023-12-02 14:42:30,019 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 14:42:30,022 INFO L413 NwaCegarLoop]: 893 mSDtfsCounter, 367 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-02 14:42:30,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 1424 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-02 14:42:30,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2023-12-02 14:42:30,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 989. [2023-12-02 14:42:30,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 499 states have (on average 2.19438877755511) internal successors, (1095), 961 states have internal predecessors, (1095), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 14:42:30,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1140 transitions. [2023-12-02 14:42:30,100 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1140 transitions. Word has length 2 [2023-12-02 14:42:30,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:42:30,100 INFO L495 AbstractCegarLoop]: Abstraction has 989 states and 1140 transitions. [2023-12-02 14:42:30,100 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 14:42:30,100 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1140 transitions. [2023-12-02 14:42:30,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-12-02 14:42:30,101 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:42:30,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-12-02 14:42:30,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:42:30,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:42:30,302 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 464 more)] === [2023-12-02 14:42:30,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:42:30,302 INFO L85 PathProgramCache]: Analyzing trace with hash 67778, now seen corresponding path program 1 times [2023-12-02 14:42:30,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:42:30,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [585658775] [2023-12-02 14:42:30,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:42:30,304 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 14:42:30,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:42:30,305 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:42:30,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:42:30,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:42:30,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 14:42:30,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:42:30,604 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 14:42:30,620 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 14:42:30,621 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:42:30,621 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:42:30,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [585658775] [2023-12-02 14:42:30,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [585658775] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:42:30,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:42:30,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 14:42:30,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013485946] [2023-12-02 14:42:30,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:42:30,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:42:30,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:42:30,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:42:30,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:42:30,624 INFO L87 Difference]: Start difference. First operand 989 states and 1140 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 14:42:35,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:42:35,948 INFO L93 Difference]: Finished difference Result 988 states and 1139 transitions. [2023-12-02 14:42:35,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:42:35,949 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 14:42:35,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:42:35,954 INFO L225 Difference]: With dead ends: 988 [2023-12-02 14:42:35,954 INFO L226 Difference]: Without dead ends: 988 [2023-12-02 14:42:35,954 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 14:42:35,956 INFO L413 NwaCegarLoop]: 1023 mSDtfsCounter, 9 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1667 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-12-02 14:42:35,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1667 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-12-02 14:42:35,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2023-12-02 14:42:35,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 988. [2023-12-02 14:42:35,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 988 states, 499 states have (on average 2.1923847695390783) internal successors, (1094), 960 states have internal predecessors, (1094), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 14:42:35,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1139 transitions. [2023-12-02 14:42:35,986 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1139 transitions. Word has length 2 [2023-12-02 14:42:35,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:42:35,986 INFO L495 AbstractCegarLoop]: Abstraction has 988 states and 1139 transitions. [2023-12-02 14:42:35,986 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 14:42:35,986 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1139 transitions. [2023-12-02 14:42:35,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 14:42:35,987 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:42:35,987 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 14:42:35,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:42:36,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:42:36,188 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 464 more)] === [2023-12-02 14:42:36,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:42:36,188 INFO L85 PathProgramCache]: Analyzing trace with hash 66764631, now seen corresponding path program 1 times [2023-12-02 14:42:36,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:42:36,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [612247693] [2023-12-02 14:42:36,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:42:36,190 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 14:42:36,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:42:36,191 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:42:36,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:42:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:42:36,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 14:42:36,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:42:36,482 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 14:42:36,549 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 14:42:36,549 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:42:36,549 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:42:36,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [612247693] [2023-12-02 14:42:36,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [612247693] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:42:36,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:42:36,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:42:36,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843657869] [2023-12-02 14:42:36,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:42:36,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:42:36,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:42:36,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:42:36,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:42:36,551 INFO L87 Difference]: Start difference. First operand 988 states and 1139 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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 14:42:43,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:42:43,161 INFO L93 Difference]: Finished difference Result 990 states and 1141 transitions. [2023-12-02 14:42:43,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:42:43,162 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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 14:42:43,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:42:43,166 INFO L225 Difference]: With dead ends: 990 [2023-12-02 14:42:43,166 INFO L226 Difference]: Without dead ends: 990 [2023-12-02 14:42:43,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:42:43,168 INFO L413 NwaCegarLoop]: 1022 mSDtfsCounter, 9 mSDsluCounter, 1289 mSDsCounter, 0 mSdLazyCounter, 1094 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2311 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-12-02 14:42:43,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2311 Invalid, 1095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1094 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2023-12-02 14:42:43,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2023-12-02 14:42:43,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 990. [2023-12-02 14:42:43,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 990 states, 501 states have (on average 2.187624750499002) internal successors, (1096), 962 states have internal predecessors, (1096), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 14:42:43,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1141 transitions. [2023-12-02 14:42:43,201 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1141 transitions. Word has length 4 [2023-12-02 14:42:43,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:42:43,202 INFO L495 AbstractCegarLoop]: Abstraction has 990 states and 1141 transitions. [2023-12-02 14:42:43,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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 14:42:43,202 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1141 transitions. [2023-12-02 14:42:43,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 14:42:43,203 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:42:43,203 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-12-02 14:42:43,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:42:43,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:42:43,404 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 464 more)] === [2023-12-02 14:42:43,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:42:43,404 INFO L85 PathProgramCache]: Analyzing trace with hash -262075803, now seen corresponding path program 1 times [2023-12-02 14:42:43,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:42:43,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1288570877] [2023-12-02 14:42:43,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:42:43,405 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 14:42:43,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:42:43,407 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:42:43,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:42:43,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:42:43,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 14:42:43,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:42:43,671 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 14:42:43,791 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:42:43,791 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:42:44,371 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:42:44,372 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:42:44,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1288570877] [2023-12-02 14:42:44,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1288570877] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:42:44,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [37528670] [2023-12-02 14:42:44,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:42:44,373 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 14:42:44,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 14:42:44,374 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 14:42:44,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-02 14:42:44,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:42:44,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 14:42:44,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:42:44,986 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 14:42:45,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:42:45,045 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:42:45,244 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:42:45,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [37528670] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:42:45,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666855655] [2023-12-02 14:42:45,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:42:45,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:42:45,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:42:45,246 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:42:45,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 14:42:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:42:45,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 14:42:45,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:42:45,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-02 14:42:45,599 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:42:45,599 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:42:45,808 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:42:45,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666855655] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:42:45,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 14:42:45,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3, 3, 3, 3] total 6 [2023-12-02 14:42:45,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65132659] [2023-12-02 14:42:45,809 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 14:42:45,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 14:42:45,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:42:45,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 14:42:45,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 14:42:45,810 INFO L87 Difference]: Start difference. First operand 990 states and 1141 transitions. Second operand has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:43:13,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:43:13,401 INFO L93 Difference]: Finished difference Result 992 states and 1143 transitions. [2023-12-02 14:43:13,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 14:43:13,402 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-12-02 14:43:13,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:43:13,407 INFO L225 Difference]: With dead ends: 992 [2023-12-02 14:43:13,407 INFO L226 Difference]: Without dead ends: 992 [2023-12-02 14:43:13,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-12-02 14:43:13,408 INFO L413 NwaCegarLoop]: 1021 mSDtfsCounter, 10 mSDsluCounter, 2578 mSDsCounter, 0 mSdLazyCounter, 2073 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 3599 SdHoareTripleChecker+Invalid, 2077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.4s IncrementalHoareTripleChecker+Time [2023-12-02 14:43:13,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 3599 Invalid, 2077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2073 Invalid, 0 Unknown, 0 Unchecked, 27.4s Time] [2023-12-02 14:43:13,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2023-12-02 14:43:13,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 992. [2023-12-02 14:43:13,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 504 states have (on average 2.1785714285714284) internal successors, (1098), 964 states have internal predecessors, (1098), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 14:43:13,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1143 transitions. [2023-12-02 14:43:13,427 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1143 transitions. Word has length 6 [2023-12-02 14:43:13,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:43:13,427 INFO L495 AbstractCegarLoop]: Abstraction has 992 states and 1143 transitions. [2023-12-02 14:43:13,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:43:13,427 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1143 transitions. [2023-12-02 14:43:13,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 14:43:13,428 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:43:13,428 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1] [2023-12-02 14:43:13,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:43:13,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-02 14:43:13,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-02 14:43:14,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:43:14,029 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 464 more)] === [2023-12-02 14:43:14,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:43:14,029 INFO L85 PathProgramCache]: Analyzing trace with hash 644668714, now seen corresponding path program 1 times [2023-12-02 14:43:14,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:43:14,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1154195999] [2023-12-02 14:43:14,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:43:14,030 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 14:43:14,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:43:14,031 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:43:14,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-02 14:43:14,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:43:14,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 14:43:14,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:43:14,360 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:43:14,360 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:43:14,472 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:43:14,472 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:43:14,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1154195999] [2023-12-02 14:43:14,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1154195999] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:43:14,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2134776168] [2023-12-02 14:43:14,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:43:14,473 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 14:43:14,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 14:43:14,474 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 14:43:14,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-02 14:43:15,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:43:15,055 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 14:43:15,056 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:43:15,080 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:43:15,080 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:43:15,109 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:43:15,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2134776168] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:43:15,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2915444] [2023-12-02 14:43:15,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:43:15,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:43:15,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:43:15,111 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:43:15,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-02 14:43:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:43:15,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 14:43:15,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:43:15,382 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 14:43:15,582 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:43:15,582 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:43:16,132 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:43:16,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2915444] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:43:16,132 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 14:43:16,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 7] total 18 [2023-12-02 14:43:16,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579887742] [2023-12-02 14:43:16,133 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 14:43:16,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-02 14:43:16,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:43:16,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-02 14:43:16,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2023-12-02 14:43:16,134 INFO L87 Difference]: Start difference. First operand 992 states and 1143 transitions. Second operand has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 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 14:43:32,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:43:32,168 INFO L93 Difference]: Finished difference Result 1002 states and 1153 transitions. [2023-12-02 14:43:32,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 14:43:32,168 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-12-02 14:43:32,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:43:32,174 INFO L225 Difference]: With dead ends: 1002 [2023-12-02 14:43:32,174 INFO L226 Difference]: Without dead ends: 1002 [2023-12-02 14:43:32,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=179, Invalid=373, Unknown=0, NotChecked=0, Total=552 [2023-12-02 14:43:32,175 INFO L413 NwaCegarLoop]: 1022 mSDtfsCounter, 23 mSDsluCounter, 3600 mSDsCounter, 0 mSdLazyCounter, 2237 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 4622 SdHoareTripleChecker+Invalid, 2243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2023-12-02 14:43:32,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 4622 Invalid, 2243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2237 Invalid, 0 Unknown, 0 Unchecked, 15.6s Time] [2023-12-02 14:43:32,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2023-12-02 14:43:32,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 1002. [2023-12-02 14:43:32,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1002 states, 514 states have (on average 2.1556420233463034) internal successors, (1108), 974 states have internal predecessors, (1108), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-02 14:43:32,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1153 transitions. [2023-12-02 14:43:32,195 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1153 transitions. Word has length 11 [2023-12-02 14:43:32,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:43:32,195 INFO L495 AbstractCegarLoop]: Abstraction has 1002 states and 1153 transitions. [2023-12-02 14:43:32,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 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 14:43:32,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1153 transitions. [2023-12-02 14:43:32,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 14:43:32,196 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:43:32,196 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1] [2023-12-02 14:43:32,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-12-02 14:43:32,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-02 14:43:32,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-12-02 14:43:32,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:43:32,797 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 464 more)] === [2023-12-02 14:43:32,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:43:32,797 INFO L85 PathProgramCache]: Analyzing trace with hash 27516452, now seen corresponding path program 2 times [2023-12-02 14:43:32,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:43:32,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596099682] [2023-12-02 14:43:32,798 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 14:43:32,798 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 14:43:32,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:43:32,799 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:43:32,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:43:33,127 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-02 14:43:33,127 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 14:43:33,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 14:43:33,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:43:33,167 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 14:43:33,167 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 14:43:33,469 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-02 14:43:33,470 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:43:33,470 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:43:33,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1596099682] [2023-12-02 14:43:33,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1596099682] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:43:33,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:43:33,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 14:43:33,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293488370] [2023-12-02 14:43:33,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:43:33,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:43:33,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:43:33,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:43:33,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:43:33,471 INFO L87 Difference]: Start difference. First operand 1002 states and 1153 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 14:43:41,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:43:41,188 INFO L93 Difference]: Finished difference Result 1356 states and 1567 transitions. [2023-12-02 14:43:41,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:43:41,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-12-02 14:43:41,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:43:41,195 INFO L225 Difference]: With dead ends: 1356 [2023-12-02 14:43:41,195 INFO L226 Difference]: Without dead ends: 1356 [2023-12-02 14:43:41,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 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 14:43:41,196 INFO L413 NwaCegarLoop]: 870 mSDtfsCounter, 586 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 1403 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-12-02 14:43:41,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 1403 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2023-12-02 14:43:41,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1356 states. [2023-12-02 14:43:41,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1356 to 1182. [2023-12-02 14:43:41,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1182 states, 684 states have (on average 2.16812865497076) internal successors, (1483), 1143 states have internal predecessors, (1483), 33 states have call successors, (33), 12 states have call predecessors, (33), 9 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-02 14:43:41,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1182 states to 1182 states and 1543 transitions. [2023-12-02 14:43:41,228 INFO L78 Accepts]: Start accepts. Automaton has 1182 states and 1543 transitions. Word has length 21 [2023-12-02 14:43:41,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:43:41,228 INFO L495 AbstractCegarLoop]: Abstraction has 1182 states and 1543 transitions. [2023-12-02 14:43:41,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 14:43:41,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1182 states and 1543 transitions. [2023-12-02 14:43:41,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 14:43:41,229 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:43:41,229 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1] [2023-12-02 14:43:41,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:43:41,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:43:41,430 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 464 more)] === [2023-12-02 14:43:41,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:43:41,430 INFO L85 PathProgramCache]: Analyzing trace with hash 27516453, now seen corresponding path program 1 times [2023-12-02 14:43:41,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:43:41,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [723654305] [2023-12-02 14:43:41,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:43:41,431 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 14:43:41,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:43:41,432 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:43:41,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-02 14:43:41,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:43:41,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 14:43:41,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:43:41,880 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:43:41,880 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:43:42,259 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:43:42,259 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:43:42,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [723654305] [2023-12-02 14:43:42,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [723654305] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:43:42,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1115378941] [2023-12-02 14:43:42,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:43:42,260 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 14:43:42,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 14:43:42,261 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 14:43:42,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-02 14:43:42,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:43:42,941 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 14:43:42,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:43:43,000 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:43:43,001 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:43:43,071 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:43:43,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1115378941] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:43:43,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946846030] [2023-12-02 14:43:43,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:43:43,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:43:43,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:43:43,073 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:43:43,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-02 14:43:43,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:43:43,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 14:43:43,427 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:43:43,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-02 14:43:44,218 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:43:44,219 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:43:50,071 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:43:50,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946846030] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:43:50,071 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 14:43:50,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11, 11, 11, 12] total 38 [2023-12-02 14:43:50,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273864848] [2023-12-02 14:43:50,072 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 14:43:50,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-12-02 14:43:50,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:43:50,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-12-02 14:43:50,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=371, Invalid=1035, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 14:43:50,074 INFO L87 Difference]: Start difference. First operand 1182 states and 1543 transitions. Second operand has 38 states, 38 states have (on average 1.9473684210526316) internal successors, (74), 38 states have internal predecessors, (74), 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 14:44:51,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:44:51,137 INFO L93 Difference]: Finished difference Result 1202 states and 1564 transitions. [2023-12-02 14:44:51,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-02 14:44:51,139 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 1.9473684210526316) internal successors, (74), 38 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-12-02 14:44:51,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:44:51,144 INFO L225 Difference]: With dead ends: 1202 [2023-12-02 14:44:51,144 INFO L226 Difference]: Without dead ends: 1202 [2023-12-02 14:44:51,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 563 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=601, Invalid=1849, Unknown=0, NotChecked=0, Total=2450 [2023-12-02 14:44:51,146 INFO L413 NwaCegarLoop]: 1020 mSDtfsCounter, 43 mSDsluCounter, 8104 mSDsCounter, 0 mSdLazyCounter, 5809 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 9124 SdHoareTripleChecker+Invalid, 5828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 5809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58.2s IncrementalHoareTripleChecker+Time [2023-12-02 14:44:51,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 9124 Invalid, 5828 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 5809 Invalid, 0 Unknown, 0 Unchecked, 58.2s Time] [2023-12-02 14:44:51,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2023-12-02 14:44:51,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 1202. [2023-12-02 14:44:51,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1202 states, 704 states have (on average 2.1363636363636362) internal successors, (1504), 1163 states have internal predecessors, (1504), 33 states have call successors, (33), 12 states have call predecessors, (33), 9 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-02 14:44:51,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 1564 transitions. [2023-12-02 14:44:51,166 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 1564 transitions. Word has length 21 [2023-12-02 14:44:51,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:44:51,166 INFO L495 AbstractCegarLoop]: Abstraction has 1202 states and 1564 transitions. [2023-12-02 14:44:51,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 1.9473684210526316) internal successors, (74), 38 states have internal predecessors, (74), 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 14:44:51,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 1564 transitions. [2023-12-02 14:44:51,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-02 14:44:51,167 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:44:51,167 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1] [2023-12-02 14:44:51,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-12-02 14:44:51,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2023-12-02 14:44:51,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-02 14:44:51,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:44:51,768 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 464 more)] === [2023-12-02 14:44:51,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:44:51,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1035525897, now seen corresponding path program 2 times [2023-12-02 14:44:51,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:44:51,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [423866057] [2023-12-02 14:44:51,769 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 14:44:51,769 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 14:44:51,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:44:51,770 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:44:51,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:44:52,149 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-02 14:44:52,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 14:44:52,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 14:44:52,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:44:52,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 14:44:52,174 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 14:44:52,483 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-12-02 14:44:52,483 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:44:52,483 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:44:52,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [423866057] [2023-12-02 14:44:52,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [423866057] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:44:52,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:44:52,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 14:44:52,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435497279] [2023-12-02 14:44:52,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:44:52,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:44:52,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:44:52,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:44:52,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:44:52,485 INFO L87 Difference]: Start difference. First operand 1202 states and 1564 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 14:44:57,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:44:57,944 INFO L93 Difference]: Finished difference Result 1205 states and 1566 transitions. [2023-12-02 14:44:57,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:44:57,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 25 [2023-12-02 14:44:57,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:44:57,951 INFO L225 Difference]: With dead ends: 1205 [2023-12-02 14:44:57,951 INFO L226 Difference]: Without dead ends: 1205 [2023-12-02 14:44:57,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 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 14:44:57,952 INFO L413 NwaCegarLoop]: 1023 mSDtfsCounter, 6 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1673 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-02 14:44:57,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1673 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-12-02 14:44:57,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1205 states. [2023-12-02 14:44:57,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1205 to 1205. [2023-12-02 14:44:57,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1205 states, 707 states have (on average 2.13012729844413) internal successors, (1506), 1165 states have internal predecessors, (1506), 33 states have call successors, (33), 13 states have call predecessors, (33), 10 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-02 14:44:57,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 1205 states and 1566 transitions. [2023-12-02 14:44:57,980 INFO L78 Accepts]: Start accepts. Automaton has 1205 states and 1566 transitions. Word has length 25 [2023-12-02 14:44:57,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:44:57,980 INFO L495 AbstractCegarLoop]: Abstraction has 1205 states and 1566 transitions. [2023-12-02 14:44:57,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 14:44:57,981 INFO L276 IsEmpty]: Start isEmpty. Operand 1205 states and 1566 transitions. [2023-12-02 14:44:57,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-02 14:44:57,982 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:44:57,982 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:44:57,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:44:58,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:44:58,183 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 464 more)] === [2023-12-02 14:44:58,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:44:58,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1917741789, now seen corresponding path program 1 times [2023-12-02 14:44:58,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:44:58,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [995497327] [2023-12-02 14:44:58,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:44:58,184 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 14:44:58,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:44:58,185 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:44:58,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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)] Waiting until timeout for monitored process [2023-12-02 14:44:58,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:44:58,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 14:44:58,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:44:58,860 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 14:44:58,861 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 14:44:58,899 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-12-02 14:44:58,900 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:44:58,900 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:44:58,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [995497327] [2023-12-02 14:44:58,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [995497327] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:44:58,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:44:58,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:44:58,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126059803] [2023-12-02 14:44:58,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:44:58,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:44:58,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:44:58,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:44:58,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:44:58,903 INFO L87 Difference]: Start difference. First operand 1205 states and 1566 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 14:45:06,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:45:06,685 INFO L93 Difference]: Finished difference Result 1278 states and 1567 transitions. [2023-12-02 14:45:06,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:45:06,686 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 14:45:06,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:45:06,691 INFO L225 Difference]: With dead ends: 1278 [2023-12-02 14:45:06,691 INFO L226 Difference]: Without dead ends: 1278 [2023-12-02 14:45:06,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 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 14:45:06,692 INFO L413 NwaCegarLoop]: 889 mSDtfsCounter, 352 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 1425 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-12-02 14:45:06,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 1425 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2023-12-02 14:45:06,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states. [2023-12-02 14:45:06,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1278 to 1200. [2023-12-02 14:45:06,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1200 states, 707 states have (on average 2.123055162659123) internal successors, (1501), 1160 states have internal predecessors, (1501), 33 states have call successors, (33), 13 states have call predecessors, (33), 10 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-02 14:45:06,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1200 states to 1200 states and 1561 transitions. [2023-12-02 14:45:06,738 INFO L78 Accepts]: Start accepts. Automaton has 1200 states and 1561 transitions. Word has length 32 [2023-12-02 14:45:06,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:45:06,738 INFO L495 AbstractCegarLoop]: Abstraction has 1200 states and 1561 transitions. [2023-12-02 14:45:06,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 14:45:06,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1200 states and 1561 transitions. [2023-12-02 14:45:06,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-02 14:45:06,740 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:45:06,740 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:45:06,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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)] Forceful destruction successful, exit code 0 [2023-12-02 14:45:06,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:45:06,952 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 464 more)] === [2023-12-02 14:45:06,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:45:06,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1917741788, now seen corresponding path program 1 times [2023-12-02 14:45:06,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:45:06,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1889624285] [2023-12-02 14:45:06,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:45:06,954 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 14:45:06,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:45:06,955 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:45:06,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 (17)] Waiting until timeout for monitored process [2023-12-02 14:45:07,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:45:07,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 14:45:07,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:45:07,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 14:45:07,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2023-12-02 14:45:07,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-02 14:45:07,856 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-12-02 14:45:07,856 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:45:07,856 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:45:07,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1889624285] [2023-12-02 14:45:07,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1889624285] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:45:07,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:45:07,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 14:45:07,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862535108] [2023-12-02 14:45:07,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:45:07,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 14:45:07,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:45:07,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 14:45:07,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-02 14:45:07,857 INFO L87 Difference]: Start difference. First operand 1200 states and 1561 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 14:45:14,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:45:14,104 INFO L93 Difference]: Finished difference Result 1201 states and 1563 transitions. [2023-12-02 14:45:14,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 14:45:14,104 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 14:45:14,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:45:14,110 INFO L225 Difference]: With dead ends: 1201 [2023-12-02 14:45:14,111 INFO L226 Difference]: Without dead ends: 1201 [2023-12-02 14:45:14,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-02 14:45:14,112 INFO L413 NwaCegarLoop]: 1005 mSDtfsCounter, 853 mSDsluCounter, 2696 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 3701 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-12-02 14:45:14,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [863 Valid, 3701 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-12-02 14:45:14,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2023-12-02 14:45:14,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 1199. [2023-12-02 14:45:14,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1199 states, 707 states have (on average 2.1216407355021216) internal successors, (1500), 1159 states have internal predecessors, (1500), 33 states have call successors, (33), 13 states have call predecessors, (33), 10 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-02 14:45:14,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1199 states to 1199 states and 1560 transitions. [2023-12-02 14:45:14,137 INFO L78 Accepts]: Start accepts. Automaton has 1199 states and 1560 transitions. Word has length 32 [2023-12-02 14:45:14,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:45:14,143 INFO L495 AbstractCegarLoop]: Abstraction has 1199 states and 1560 transitions. [2023-12-02 14:45:14,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 14:45:14,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1199 states and 1560 transitions. [2023-12-02 14:45:14,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-02 14:45:14,145 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:45:14,145 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:45:14,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 (17)] Ended with exit code 0 [2023-12-02 14:45:14,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:45:14,347 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 464 more)] === [2023-12-02 14:45:14,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:45:14,348 INFO L85 PathProgramCache]: Analyzing trace with hash -407265103, now seen corresponding path program 1 times [2023-12-02 14:45:14,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:45:14,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2118658657] [2023-12-02 14:45:14,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:45:14,349 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 14:45:14,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:45:14,350 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:45:14,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:45:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:45:15,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 14:45:15,173 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:45:15,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-12-02 14:45:15,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 14:45:15,438 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 19 treesize of output 14 [2023-12-02 14:45:15,481 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-12-02 14:45:15,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-12-02 14:45:15,587 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-12-02 14:45:15,587 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:45:15,588 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:45:15,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2118658657] [2023-12-02 14:45:15,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2118658657] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:45:15,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:45:15,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-02 14:45:15,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900948448] [2023-12-02 14:45:15,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:45:15,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 14:45:15,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:45:15,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 14:45:15,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-02 14:45:15,589 INFO L87 Difference]: Start difference. First operand 1199 states and 1560 transitions. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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 14:45:27,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:45:27,282 INFO L93 Difference]: Finished difference Result 1214 states and 1576 transitions. [2023-12-02 14:45:27,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 14:45:27,282 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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 34 [2023-12-02 14:45:27,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:45:27,287 INFO L225 Difference]: With dead ends: 1214 [2023-12-02 14:45:27,287 INFO L226 Difference]: Without dead ends: 1214 [2023-12-02 14:45:27,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-02 14:45:27,288 INFO L413 NwaCegarLoop]: 991 mSDtfsCounter, 1756 mSDsluCounter, 2832 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1766 SdHoareTripleChecker+Valid, 3823 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2023-12-02 14:45:27,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1766 Valid, 3823 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 960 Invalid, 0 Unknown, 0 Unchecked, 11.5s Time] [2023-12-02 14:45:27,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2023-12-02 14:45:27,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 1207. [2023-12-02 14:45:27,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 716 states have (on average 2.1159217877094973) internal successors, (1515), 1167 states have internal predecessors, (1515), 33 states have call successors, (33), 13 states have call predecessors, (33), 10 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-02 14:45:27,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1575 transitions. [2023-12-02 14:45:27,314 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1575 transitions. Word has length 34 [2023-12-02 14:45:27,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:45:27,314 INFO L495 AbstractCegarLoop]: Abstraction has 1207 states and 1575 transitions. [2023-12-02 14:45:27,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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 14:45:27,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1575 transitions. [2023-12-02 14:45:27,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 14:45:27,316 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:45:27,316 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:45:27,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:45:27,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:45:27,523 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 464 more)] === [2023-12-02 14:45:27,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:45:27,524 INFO L85 PathProgramCache]: Analyzing trace with hash -538121510, now seen corresponding path program 1 times [2023-12-02 14:45:27,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:45:27,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [831066585] [2023-12-02 14:45:27,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:45:27,525 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 14:45:27,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:45:27,526 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:45:27,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:45:28,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:45:28,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 14:45:28,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:45:28,242 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 7 [2023-12-02 14:45:28,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 14:45:28,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 14:45:28,293 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-12-02 14:45:28,293 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 14:45:28,323 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-12-02 14:45:28,323 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:45:28,323 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:45:28,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [831066585] [2023-12-02 14:45:28,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [831066585] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:45:28,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:45:28,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:45:28,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909004055] [2023-12-02 14:45:28,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:45:28,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:45:28,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:45:28,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:45:28,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:45:28,330 INFO L87 Difference]: Start difference. First operand 1207 states and 1575 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 14:45:31,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:45:31,482 INFO L93 Difference]: Finished difference Result 1284 states and 1579 transitions. [2023-12-02 14:45:31,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:45:31,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 36 [2023-12-02 14:45:31,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:45:31,488 INFO L225 Difference]: With dead ends: 1284 [2023-12-02 14:45:31,488 INFO L226 Difference]: Without dead ends: 1284 [2023-12-02 14:45:31,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 33 SyntacticMatches, 1 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 14:45:31,489 INFO L413 NwaCegarLoop]: 890 mSDtfsCounter, 352 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:45:31,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 1420 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-02 14:45:31,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1284 states. [2023-12-02 14:45:31,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1284 to 1206. [2023-12-02 14:45:31,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 716 states have (on average 2.113128491620112) internal successors, (1513), 1166 states have internal predecessors, (1513), 33 states have call successors, (33), 13 states have call predecessors, (33), 10 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-02 14:45:31,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 1573 transitions. [2023-12-02 14:45:31,510 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 1573 transitions. Word has length 36 [2023-12-02 14:45:31,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:45:31,511 INFO L495 AbstractCegarLoop]: Abstraction has 1206 states and 1573 transitions. [2023-12-02 14:45:31,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 14:45:31,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 1573 transitions. [2023-12-02 14:45:31,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 14:45:31,512 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:45:31,512 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:45:31,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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)] Forceful destruction successful, exit code 0 [2023-12-02 14:45:31,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:45:31,714 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 464 more)] === [2023-12-02 14:45:31,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:45:31,714 INFO L85 PathProgramCache]: Analyzing trace with hash -538121509, now seen corresponding path program 1 times [2023-12-02 14:45:31,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:45:31,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394117192] [2023-12-02 14:45:31,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:45:31,715 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 14:45:31,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:45:31,716 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:45:31,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 (20)] Waiting until timeout for monitored process [2023-12-02 14:45:32,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:45:32,485 INFO L262 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 14:45:32,487 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:45:32,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2023-12-02 14:45:32,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 14:45:32,590 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 7 [2023-12-02 14:45:32,601 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 11 treesize of output 10 [2023-12-02 14:45:32,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 14:45:32,862 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 19 treesize of output 14 [2023-12-02 14:45:32,879 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-12-02 14:45:32,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-12-02 14:45:33,050 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-12-02 14:45:33,050 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:45:33,051 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:45:33,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394117192] [2023-12-02 14:45:33,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [394117192] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:45:33,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:45:33,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-02 14:45:33,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954123314] [2023-12-02 14:45:33,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:45:33,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 14:45:33,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:45:33,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 14:45:33,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-02 14:45:33,052 INFO L87 Difference]: Start difference. First operand 1206 states and 1573 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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 14:46:00,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:46:00,361 INFO L93 Difference]: Finished difference Result 1289 states and 1579 transitions. [2023-12-02 14:46:00,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 14:46:00,362 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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 36 [2023-12-02 14:46:00,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:46:00,367 INFO L225 Difference]: With dead ends: 1289 [2023-12-02 14:46:00,367 INFO L226 Difference]: Without dead ends: 1289 [2023-12-02 14:46:00,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-12-02 14:46:00,368 INFO L413 NwaCegarLoop]: 803 mSDtfsCounter, 1423 mSDsluCounter, 2831 mSDsCounter, 0 mSdLazyCounter, 2455 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1431 SdHoareTripleChecker+Valid, 3634 SdHoareTripleChecker+Invalid, 2465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:46:00,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1431 Valid, 3634 Invalid, 2465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 2455 Invalid, 0 Unknown, 0 Unchecked, 27.0s Time] [2023-12-02 14:46:00,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2023-12-02 14:46:00,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1206. [2023-12-02 14:46:00,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 716 states have (on average 2.111731843575419) internal successors, (1512), 1166 states have internal predecessors, (1512), 33 states have call successors, (33), 13 states have call predecessors, (33), 10 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-02 14:46:00,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 1572 transitions. [2023-12-02 14:46:00,383 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 1572 transitions. Word has length 36 [2023-12-02 14:46:00,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:46:00,383 INFO L495 AbstractCegarLoop]: Abstraction has 1206 states and 1572 transitions. [2023-12-02 14:46:00,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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 14:46:00,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 1572 transitions. [2023-12-02 14:46:00,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 14:46:00,385 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:46:00,385 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:46:00,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 (20)] Ended with exit code 0 [2023-12-02 14:46:00,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:46:00,586 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 464 more)] === [2023-12-02 14:46:00,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:46:00,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1737080673, now seen corresponding path program 1 times [2023-12-02 14:46:00,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:46:00,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [54467607] [2023-12-02 14:46:00,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:46:00,588 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 14:46:00,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:46:00,589 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:46:00,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-02 14:46:01,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:46:01,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 14:46:01,430 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:46:01,464 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 7 [2023-12-02 14:46:01,497 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 21 treesize of output 1 [2023-12-02 14:46:01,643 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-12-02 14:46:01,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 36 treesize of output 28 [2023-12-02 14:46:01,727 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-02 14:46:01,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 14 [2023-12-02 14:46:01,757 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-12-02 14:46:01,757 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:46:01,757 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:46:01,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [54467607] [2023-12-02 14:46:01,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [54467607] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:46:01,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:46:01,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-02 14:46:01,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781836733] [2023-12-02 14:46:01,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:46:01,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 14:46:01,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:46:01,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 14:46:01,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-02 14:46:01,759 INFO L87 Difference]: Start difference. First operand 1206 states and 1572 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 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 14:46:11,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 14:46:15,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:46:15,277 INFO L93 Difference]: Finished difference Result 1204 states and 1569 transitions. [2023-12-02 14:46:15,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 14:46:15,278 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 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 38 [2023-12-02 14:46:15,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:46:15,282 INFO L225 Difference]: With dead ends: 1204 [2023-12-02 14:46:15,282 INFO L226 Difference]: Without dead ends: 1204 [2023-12-02 14:46:15,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-02 14:46:15,283 INFO L413 NwaCegarLoop]: 1001 mSDtfsCounter, 850 mSDsluCounter, 1919 mSDsCounter, 0 mSdLazyCounter, 1577 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 2920 SdHoareTripleChecker+Invalid, 1580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1577 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2023-12-02 14:46:15,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 2920 Invalid, 1580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1577 Invalid, 1 Unknown, 0 Unchecked, 13.4s Time] [2023-12-02 14:46:15,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states. [2023-12-02 14:46:15,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 1204. [2023-12-02 14:46:15,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1204 states, 716 states have (on average 2.107541899441341) internal successors, (1509), 1164 states have internal predecessors, (1509), 33 states have call successors, (33), 13 states have call predecessors, (33), 10 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-02 14:46:15,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 1569 transitions. [2023-12-02 14:46:15,304 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 1569 transitions. Word has length 38 [2023-12-02 14:46:15,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:46:15,305 INFO L495 AbstractCegarLoop]: Abstraction has 1204 states and 1569 transitions. [2023-12-02 14:46:15,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 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 14:46:15,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 1569 transitions. [2023-12-02 14:46:15,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 14:46:15,306 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:46:15,306 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:46:15,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2023-12-02 14:46:15,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:46:15,507 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 464 more)] === [2023-12-02 14:46:15,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:46:15,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1737080672, now seen corresponding path program 1 times [2023-12-02 14:46:15,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:46:15,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1442623985] [2023-12-02 14:46:15,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:46:15,508 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 14:46:15,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:46:15,509 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:46:15,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:46:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:46:16,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 14:46:16,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:46:16,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-02 14:46:16,477 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 14:46:16,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2023-12-02 14:46:16,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2023-12-02 14:46:16,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2023-12-02 14:46:16,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2023-12-02 14:46:16,726 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 27 treesize of output 9 [2023-12-02 14:46:16,765 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-12-02 14:46:16,765 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:46:16,765 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:46:16,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1442623985] [2023-12-02 14:46:16,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1442623985] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:46:16,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:46:16,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 14:46:16,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512227896] [2023-12-02 14:46:16,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:46:16,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 14:46:16,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:46:16,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 14:46:16,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-02 14:46:16,767 INFO L87 Difference]: Start difference. First operand 1204 states and 1569 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 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 14:46:25,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:46:29,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:46:29,898 INFO L93 Difference]: Finished difference Result 1203 states and 1567 transitions. [2023-12-02 14:46:29,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 14:46:29,899 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 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 38 [2023-12-02 14:46:29,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:46:29,905 INFO L225 Difference]: With dead ends: 1203 [2023-12-02 14:46:29,906 INFO L226 Difference]: Without dead ends: 1203 [2023-12-02 14:46:29,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-02 14:46:29,907 INFO L413 NwaCegarLoop]: 994 mSDtfsCounter, 846 mSDsluCounter, 1961 mSDsCounter, 0 mSdLazyCounter, 1534 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 2955 SdHoareTripleChecker+Invalid, 1536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1534 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:46:29,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [856 Valid, 2955 Invalid, 1536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1534 Invalid, 1 Unknown, 0 Unchecked, 13.0s Time] [2023-12-02 14:46:29,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2023-12-02 14:46:29,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 1203. [2023-12-02 14:46:29,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1203 states, 716 states have (on average 2.1047486033519553) internal successors, (1507), 1163 states have internal predecessors, (1507), 33 states have call successors, (33), 13 states have call predecessors, (33), 10 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-02 14:46:29,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 1567 transitions. [2023-12-02 14:46:29,927 INFO L78 Accepts]: Start accepts. Automaton has 1203 states and 1567 transitions. Word has length 38 [2023-12-02 14:46:29,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:46:29,927 INFO L495 AbstractCegarLoop]: Abstraction has 1203 states and 1567 transitions. [2023-12-02 14:46:29,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 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 14:46:29,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states and 1567 transitions. [2023-12-02 14:46:29,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 14:46:29,928 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:46:29,928 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:46:29,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:46:30,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:46:30,129 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 464 more)] === [2023-12-02 14:46:30,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:46:30,129 INFO L85 PathProgramCache]: Analyzing trace with hash 740629039, now seen corresponding path program 1 times [2023-12-02 14:46:30,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:46:30,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1528989328] [2023-12-02 14:46:30,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:46:30,130 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 14:46:30,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:46:30,131 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:46:30,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:46:31,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:46:31,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 14:46:31,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:46:31,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-02 14:46:31,188 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-12-02 14:46:31,188 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 2 case distinctions, treesize of input 19 treesize of output 27 [2023-12-02 14:46:31,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2023-12-02 14:46:31,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 31 [2023-12-02 14:46:31,643 INFO L349 Elim1Store]: treesize reduction 24, result has 17.2 percent of original size [2023-12-02 14:46:31,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 55 [2023-12-02 14:46:31,708 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 42 treesize of output 15 [2023-12-02 14:46:31,847 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-12-02 14:46:31,847 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:46:31,847 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:46:31,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1528989328] [2023-12-02 14:46:31,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1528989328] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:46:31,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:46:31,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-02 14:46:31,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691920998] [2023-12-02 14:46:31,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:46:31,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 14:46:31,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:46:31,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 14:46:31,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-02 14:46:31,849 INFO L87 Difference]: Start difference. First operand 1203 states and 1567 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 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 14:46:44,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:46:46,391 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 14:46:53,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:46:53,322 INFO L93 Difference]: Finished difference Result 1290 states and 1585 transitions. [2023-12-02 14:46:53,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 14:46:53,323 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 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 41 [2023-12-02 14:46:53,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:46:53,328 INFO L225 Difference]: With dead ends: 1290 [2023-12-02 14:46:53,328 INFO L226 Difference]: Without dead ends: 1290 [2023-12-02 14:46:53,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-02 14:46:53,329 INFO L413 NwaCegarLoop]: 873 mSDtfsCounter, 1397 mSDsluCounter, 2429 mSDsCounter, 0 mSdLazyCounter, 2153 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1407 SdHoareTripleChecker+Valid, 3302 SdHoareTripleChecker+Invalid, 2163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2153 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.2s IncrementalHoareTripleChecker+Time [2023-12-02 14:46:53,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1407 Valid, 3302 Invalid, 2163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2153 Invalid, 2 Unknown, 0 Unchecked, 21.2s Time] [2023-12-02 14:46:53,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1290 states. [2023-12-02 14:46:53,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1290 to 1209. [2023-12-02 14:46:53,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1209 states, 722 states have (on average 2.102493074792244) internal successors, (1518), 1169 states have internal predecessors, (1518), 33 states have call successors, (33), 13 states have call predecessors, (33), 10 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-02 14:46:53,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 1578 transitions. [2023-12-02 14:46:53,344 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 1578 transitions. Word has length 41 [2023-12-02 14:46:53,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:46:53,344 INFO L495 AbstractCegarLoop]: Abstraction has 1209 states and 1578 transitions. [2023-12-02 14:46:53,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 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 14:46:53,344 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 1578 transitions. [2023-12-02 14:46:53,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 14:46:53,345 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:46:53,345 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:46:53,356 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:46:53,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:46:53,546 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 464 more)] === [2023-12-02 14:46:53,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:46:53,546 INFO L85 PathProgramCache]: Analyzing trace with hash 740629040, now seen corresponding path program 1 times [2023-12-02 14:46:53,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:46:53,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2073303002] [2023-12-02 14:46:53,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:46:53,547 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 14:46:53,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:46:53,548 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:46:53,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-02 14:46:54,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:46:54,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 14:46:54,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:46:54,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-02 14:46:54,725 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-12-02 14:46:54,725 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 1 case distinctions, treesize of input 13 treesize of output 13 [2023-12-02 14:46:54,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-02 14:46:54,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2023-12-02 14:46:54,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2023-12-02 14:46:55,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2023-12-02 14:46:55,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2023-12-02 14:46:55,296 INFO L349 Elim1Store]: treesize reduction 24, result has 17.2 percent of original size [2023-12-02 14:46:55,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 75 [2023-12-02 14:46:55,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 16 [2023-12-02 14:46:55,501 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 40 treesize of output 13 [2023-12-02 14:46:55,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2023-12-02 14:46:55,582 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-12-02 14:46:55,582 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:46:55,583 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:46:55,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2073303002] [2023-12-02 14:46:55,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2073303002] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:46:55,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:46:55,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-02 14:46:55,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411030815] [2023-12-02 14:46:55,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:46:55,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 14:46:55,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:46:55,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 14:46:55,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-12-02 14:46:55,585 INFO L87 Difference]: Start difference. First operand 1209 states and 1578 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 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 14:47:13,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:47:15,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:47:17,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:47:27,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:47:27,485 INFO L93 Difference]: Finished difference Result 1288 states and 1580 transitions. [2023-12-02 14:47:27,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 14:47:27,485 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 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 41 [2023-12-02 14:47:27,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:47:27,490 INFO L225 Difference]: With dead ends: 1288 [2023-12-02 14:47:27,490 INFO L226 Difference]: Without dead ends: 1288 [2023-12-02 14:47:27,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2023-12-02 14:47:27,490 INFO L413 NwaCegarLoop]: 873 mSDtfsCounter, 1386 mSDsluCounter, 3739 mSDsCounter, 0 mSdLazyCounter, 3921 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1396 SdHoareTripleChecker+Valid, 4612 SdHoareTripleChecker+Invalid, 3934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3921 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.4s IncrementalHoareTripleChecker+Time [2023-12-02 14:47:27,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1396 Valid, 4612 Invalid, 3934 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 3921 Invalid, 3 Unknown, 0 Unchecked, 31.4s Time] [2023-12-02 14:47:27,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1288 states. [2023-12-02 14:47:27,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1288 to 1209. [2023-12-02 14:47:27,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1209 states, 722 states have (on average 2.096952908587258) internal successors, (1514), 1169 states have internal predecessors, (1514), 33 states have call successors, (33), 13 states have call predecessors, (33), 10 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-02 14:47:27,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 1574 transitions. [2023-12-02 14:47:27,504 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 1574 transitions. Word has length 41 [2023-12-02 14:47:27,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:47:27,504 INFO L495 AbstractCegarLoop]: Abstraction has 1209 states and 1574 transitions. [2023-12-02 14:47:27,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 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 14:47:27,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 1574 transitions. [2023-12-02 14:47:27,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-02 14:47:27,505 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:47:27,505 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:47:27,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2023-12-02 14:47:27,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:47:27,706 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 464 more)] === [2023-12-02 14:47:27,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:47:27,706 INFO L85 PathProgramCache]: Analyzing trace with hash 882442056, now seen corresponding path program 1 times [2023-12-02 14:47:27,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:47:27,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1500119878] [2023-12-02 14:47:27,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:47:27,707 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 14:47:27,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:47:27,708 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/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 14:47:27,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_891b5424-bd4a-47da-b3e1-9c076d0f369f/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-02 14:47:28,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:47:28,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 14:47:28,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:47:28,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-02 14:47:28,818 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-12-02 14:47:28,818 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 2 case distinctions, treesize of input 19 treesize of output 27 [2023-12-02 14:47:28,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2023-12-02 14:47:29,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 31 [2023-12-02 14:47:29,218 INFO L349 Elim1Store]: treesize reduction 24, result has 17.2 percent of original size [2023-12-02 14:47:29,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 55 [2023-12-02 14:47:29,416 INFO L349 Elim1Store]: treesize reduction 24, result has 17.2 percent of original size [2023-12-02 14:47:29,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 55 [2023-12-02 14:47:29,461 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 42 treesize of output 15 [2023-12-02 14:47:29,598 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-12-02 14:47:29,598 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:47:29,770 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1581 (Array (_ BitVec 64) (_ BitVec 64)))) (= (_ bv0 1) (bvadd (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem285#1.base| v_ArrVal_1581) |c_ULTIMATE.start_main_~argv~0#1.base|) (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~5#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (_ bv1 1)))) is different from false [2023-12-02 14:47:31,996 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1581 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1580 (Array (_ BitVec 64) (_ BitVec 64)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~5#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem283#1.base| v_ArrVal_1580))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_1581)) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-12-02 14:47:32,030 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1581 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1580 (Array (_ BitVec 64) (_ BitVec 64)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~5#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_1580))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_1581)) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-12-02 14:47:32,069 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1579 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1581 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1580 (Array (_ BitVec 64) (_ BitVec 64)))) (= (bvadd (select |c_#valid| (let ((.cse1 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~5#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~mem_track~0#1.base| v_ArrVal_1579))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_1580)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_1581)) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1))) (_ bv1 1)) (_ bv0 1))) is different from false [2023-12-02 14:47:32,110 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 14:47:32,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 116 treesize of output 78 [2023-12-02 14:47:32,118 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 5269 treesize of output 4180 [2023-12-02 14:47:32,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 661 treesize of output 521 [2023-12-02 14:47:32,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 521 treesize of output 465 [2023-12-02 14:47:32,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 465 treesize of output 367 [2023-12-02 14:47:53,228 WARN L293 SmtUtils]: Spent 18.58s on a formula simplification that was a NOOP. DAG size: 803 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-12-02 14:47:53,229 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 14:47:53,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 0 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 153 case distinctions, treesize of input 243 treesize of output 1737