./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0134.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0134.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 554aa7448188134a862651a68c0992659f18748881f2b6912b6dbf17d440798c ................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0134.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 554aa7448188134a862651a68c0992659f18748881f2b6912b6dbf17d440798c .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:36:55,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:36:55,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:36:55,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:36:55,683 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:36:55,688 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:36:55,690 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:36:55,695 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:36:55,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:36:55,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:36:55,709 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:36:55,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:36:55,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:36:55,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:36:55,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:36:55,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:36:55,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:36:55,730 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:36:55,733 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:36:55,745 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:36:55,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:36:55,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:36:55,753 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:36:55,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:36:55,765 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:36:55,766 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:36:55,766 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:36:55,768 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:36:55,768 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:36:55,770 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:36:55,771 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:36:55,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:36:55,773 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:36:55,774 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:36:55,776 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:36:55,776 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:36:55,777 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:36:55,777 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:36:55,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:36:55,779 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:36:55,780 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:36:55,781 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 09:36:55,805 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:36:55,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:36:55,806 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:36:55,806 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:36:55,808 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:36:55,808 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:36:55,808 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:36:55,809 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:36:55,809 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:36:55,809 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:36:55,809 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:36:55,810 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:36:55,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:36:55,810 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:36:55,810 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:36:55,811 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 09:36:55,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:36:55,811 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:36:55,812 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:36:55,812 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:36:55,812 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:36:55,812 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:36:55,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:36:55,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:36:55,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:36:55,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:36:55,814 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:36:55,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:36:55,814 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:36:55,815 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 554aa7448188134a862651a68c0992659f18748881f2b6912b6dbf17d440798c [2021-10-28 09:36:56,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:36:56,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:36:56,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:36:56,176 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:36:56,177 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:36:56,178 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/memsafety/test-0134.i [2021-10-28 09:36:56,255 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/data/585aa37a6/28827a0a15b243488a8e831bc30349fb/FLAG191803016 [2021-10-28 09:36:56,849 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:36:56,850 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/sv-benchmarks/c/memsafety/test-0134.i [2021-10-28 09:36:56,878 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/data/585aa37a6/28827a0a15b243488a8e831bc30349fb/FLAG191803016 [2021-10-28 09:36:57,127 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/data/585aa37a6/28827a0a15b243488a8e831bc30349fb [2021-10-28 09:36:57,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:36:57,139 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:36:57,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:36:57,144 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:36:57,148 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:36:57,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:36:57" (1/1) ... [2021-10-28 09:36:57,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@140fb739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:57, skipping insertion in model container [2021-10-28 09:36:57,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:36:57" (1/1) ... [2021-10-28 09:36:57,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:36:57,225 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:36:57,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:36:57,662 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-28 09:36:57,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5b89f19e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:36:57, skipping insertion in model container [2021-10-28 09:36:57,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:36:57,664 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 09:36:57,667 INFO L168 Benchmark]: Toolchain (without parser) took 526.05 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 53.0 MB in the beginning and 80.6 MB in the end (delta: -27.6 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2021-10-28 09:36:57,668 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 88.1 MB. Free memory was 60.7 MB in the beginning and 60.6 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:36:57,669 INFO L168 Benchmark]: CACSL2BoogieTranslator took 520.71 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 52.7 MB in the beginning and 80.6 MB in the end (delta: -27.9 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:36:57,671 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 88.1 MB. Free memory was 60.7 MB in the beginning and 60.6 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 520.71 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 52.7 MB in the beginning and 80.6 MB in the end (delta: -27.9 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 585]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type 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... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:37:00,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:37:00,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:37:00,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:37:00,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:37:00,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:37:00,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:37:00,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:37:00,301 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:37:00,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:37:00,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:37:00,307 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:37:00,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:37:00,309 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:37:00,311 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:37:00,313 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:37:00,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:37:00,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:37:00,319 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:37:00,322 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:37:00,324 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:37:00,326 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:37:00,328 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:37:00,330 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:37:00,334 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:37:00,335 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:37:00,336 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:37:00,337 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:37:00,338 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:37:00,339 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:37:00,340 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:37:00,341 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:37:00,342 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:37:00,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:37:00,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:37:00,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:37:00,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:37:00,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:37:00,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:37:00,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:37:00,349 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:37:00,350 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 09:37:00,387 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:37:00,390 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:37:00,391 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:37:00,391 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:37:00,393 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:37:00,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:37:00,394 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:37:00,394 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:37:00,395 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:37:00,395 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:37:00,396 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:37:00,396 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:37:00,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:37:00,397 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:37:00,397 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:37:00,397 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 09:37:00,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:37:00,398 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:37:00,398 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 09:37:00,398 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 09:37:00,398 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:37:00,399 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:37:00,399 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:37:00,399 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:37:00,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:37:00,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:37:00,400 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:37:00,400 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:37:00,401 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 09:37:00,401 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 09:37:00,401 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:37:00,401 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 09:37:00,402 INFO L138 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_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 554aa7448188134a862651a68c0992659f18748881f2b6912b6dbf17d440798c [2021-10-28 09:37:00,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:37:00,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:37:00,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:37:00,863 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:37:00,864 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:37:00,865 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/memsafety/test-0134.i [2021-10-28 09:37:00,947 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/data/bf611d782/228219ce6e0242cf9348c1cdbf6d624d/FLAG9bfdf4545 [2021-10-28 09:37:01,557 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:37:01,558 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/sv-benchmarks/c/memsafety/test-0134.i [2021-10-28 09:37:01,578 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/data/bf611d782/228219ce6e0242cf9348c1cdbf6d624d/FLAG9bfdf4545 [2021-10-28 09:37:01,841 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/data/bf611d782/228219ce6e0242cf9348c1cdbf6d624d [2021-10-28 09:37:01,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:37:01,846 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:37:01,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:37:01,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:37:01,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:37:01,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:37:01" (1/1) ... [2021-10-28 09:37:01,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67cd7246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:01, skipping insertion in model container [2021-10-28 09:37:01,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:37:01" (1/1) ... [2021-10-28 09:37:01,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:37:01,930 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:37:02,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:37:02,411 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 09:37:02,434 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:37:02,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:37:02,527 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:37:02,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:37:02,667 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:37:02,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:02 WrapperNode [2021-10-28 09:37:02,669 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:37:02,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:37:02,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:37:02,671 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:37:02,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:02" (1/1) ... [2021-10-28 09:37:02,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:02" (1/1) ... [2021-10-28 09:37:02,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:02" (1/1) ... [2021-10-28 09:37:02,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:02" (1/1) ... [2021-10-28 09:37:02,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:02" (1/1) ... [2021-10-28 09:37:02,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:02" (1/1) ... [2021-10-28 09:37:02,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:02" (1/1) ... [2021-10-28 09:37:02,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:37:02,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:37:02,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:37:02,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:37:02,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:02" (1/1) ... [2021-10-28 09:37:02,802 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:37:02,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:37:02,825 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:37:02,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:37:02,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 09:37:02,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:37:02,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 09:37:02,881 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-28 09:37:02,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 09:37:02,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 09:37:02,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 09:37:02,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 09:37:02,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 09:37:02,881 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-10-28 09:37:02,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-10-28 09:37:02,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2021-10-28 09:37:02,882 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-10-28 09:37:02,882 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-10-28 09:37:02,882 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2021-10-28 09:37:02,882 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2021-10-28 09:37:02,882 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2021-10-28 09:37:02,882 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2021-10-28 09:37:02,883 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2021-10-28 09:37:02,883 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_seek_max [2021-10-28 09:37:02,883 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2021-10-28 09:37:02,883 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 09:37:02,883 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 09:37:02,883 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-28 09:37:02,883 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-10-28 09:37:02,883 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-10-28 09:37:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-28 09:37:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:37:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 09:37:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 09:37:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 09:37:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 09:37:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 09:37:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 09:37:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 09:37:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 09:37:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 09:37:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 09:37:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 09:37:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 09:37:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 09:37:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 09:37:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 09:37:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 09:37:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 09:37:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 09:37:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 09:37:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 09:37:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 09:37:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 09:37:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 09:37:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 09:37:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 09:37:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 09:37:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 09:37:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 09:37:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 09:37:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 09:37:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 09:37:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 09:37:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 09:37:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 09:37:02,892 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 09:37:02,892 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 09:37:02,892 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 09:37:02,893 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 09:37:02,893 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 09:37:02,893 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 09:37:02,893 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 09:37:02,894 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 09:37:02,894 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 09:37:02,894 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 09:37:02,894 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 09:37:02,894 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 09:37:02,894 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 09:37:02,894 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 09:37:02,895 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 09:37:02,895 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 09:37:02,895 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 09:37:02,896 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 09:37:02,896 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 09:37:02,896 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 09:37:02,896 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 09:37:02,896 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 09:37:02,896 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 09:37:02,897 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 09:37:02,897 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 09:37:02,897 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 09:37:02,897 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 09:37:02,897 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 09:37:02,897 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 09:37:02,897 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 09:37:02,897 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 09:37:02,898 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 09:37:02,898 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 09:37:02,898 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 09:37:02,898 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 09:37:02,898 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 09:37:02,898 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 09:37:02,898 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 09:37:02,898 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 09:37:02,899 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 09:37:02,899 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 09:37:02,899 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 09:37:02,900 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 09:37:02,900 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 09:37:02,901 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 09:37:02,901 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 09:37:02,901 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 09:37:02,901 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 09:37:02,901 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 09:37:02,901 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 09:37:02,902 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 09:37:02,902 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 09:37:02,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 09:37:02,902 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 09:37:02,902 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 09:37:02,902 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 09:37:02,902 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 09:37:02,903 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 09:37:02,903 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 09:37:02,903 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 09:37:02,904 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 09:37:02,905 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 09:37:02,907 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 09:37:02,908 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 09:37:02,908 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 09:37:02,908 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 09:37:02,909 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 09:37:02,910 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 09:37:02,911 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 09:37:02,911 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 09:37:02,911 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 09:37:02,916 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 09:37:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 09:37:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-10-28 09:37:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 09:37:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-10-28 09:37:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 09:37:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2021-10-28 09:37:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-10-28 09:37:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-10-28 09:37:02,918 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2021-10-28 09:37:02,918 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2021-10-28 09:37:02,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 09:37:02,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 09:37:02,918 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2021-10-28 09:37:02,918 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2021-10-28 09:37:02,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:37:02,918 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2021-10-28 09:37:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 09:37:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure gl_seek_max [2021-10-28 09:37:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2021-10-28 09:37:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 09:37:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 09:37:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 09:37:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 09:37:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:37:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 09:37:02,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-28 09:37:02,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-28 09:37:04,073 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:37:04,074 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-28 09:37:04,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:37:04 BoogieIcfgContainer [2021-10-28 09:37:04,077 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:37:04,079 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:37:04,079 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:37:04,083 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:37:04,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:37:01" (1/3) ... [2021-10-28 09:37:04,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62dc1662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:37:04, skipping insertion in model container [2021-10-28 09:37:04,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:37:02" (2/3) ... [2021-10-28 09:37:04,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62dc1662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:37:04, skipping insertion in model container [2021-10-28 09:37:04,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:37:04" (3/3) ... [2021-10-28 09:37:04,086 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0134.i [2021-10-28 09:37:04,092 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:37:04,092 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2021-10-28 09:37:04,154 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:37:04,167 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 09:37:04,167 INFO L340 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2021-10-28 09:37:04,187 INFO L276 IsEmpty]: Start isEmpty. Operand has 157 states, 77 states have (on average 1.7532467532467533) internal successors, (135), 125 states have internal predecessors, (135), 19 states have call successors, (19), 14 states have call predecessors, (19), 14 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-10-28 09:37:04,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 09:37:04,231 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:04,231 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:37:04,232 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting gl_insertErr0REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 44 more)] === [2021-10-28 09:37:04,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:04,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1666329584, now seen corresponding path program 1 times [2021-10-28 09:37:04,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:37:04,266 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [15607516] [2021-10-28 09:37:04,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:04,267 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:37:04,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:37:04,273 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:37:04,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 09:37:04,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:04,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-28 09:37:04,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:37:04,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:04,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:37:04,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:04,647 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:37:04,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [15607516] [2021-10-28 09:37:04,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [15607516] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:04,648 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:04,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 09:37:04,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874466828] [2021-10-28 09:37:04,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 09:37:04,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:37:04,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 09:37:04,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:37:04,680 INFO L87 Difference]: Start difference. First operand has 157 states, 77 states have (on average 1.7532467532467533) internal successors, (135), 125 states have internal predecessors, (135), 19 states have call successors, (19), 14 states have call predecessors, (19), 14 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:37:04,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:04,727 INFO L93 Difference]: Finished difference Result 157 states and 168 transitions. [2021-10-28 09:37:04,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:37:04,729 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-10-28 09:37:04,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:04,745 INFO L225 Difference]: With dead ends: 157 [2021-10-28 09:37:04,745 INFO L226 Difference]: Without dead ends: 154 [2021-10-28 09:37:04,747 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:37:04,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-10-28 09:37:04,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2021-10-28 09:37:04,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 74 states have (on average 1.7297297297297298) internal successors, (128), 123 states have internal predecessors, (128), 19 states have call successors, (19), 14 states have call predecessors, (19), 13 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-10-28 09:37:04,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 165 transitions. [2021-10-28 09:37:04,834 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 165 transitions. Word has length 10 [2021-10-28 09:37:04,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:04,834 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 165 transitions. [2021-10-28 09:37:04,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:37:04,835 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 165 transitions. [2021-10-28 09:37:04,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 09:37:04,836 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:04,836 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:37:04,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:37:05,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:37:05,060 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting gl_insertErr0REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 44 more)] === [2021-10-28 09:37:05,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:05,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1666329522, now seen corresponding path program 1 times [2021-10-28 09:37:05,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:37:05,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1599309658] [2021-10-28 09:37:05,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:05,062 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:37:05,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:37:05,066 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:37:05,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 09:37:05,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:05,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:37:05,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:37:05,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-10-28 09:37:05,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:05,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:37:05,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:05,407 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:37:05,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1599309658] [2021-10-28 09:37:05,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1599309658] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:05,414 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:05,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 09:37:05,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585918751] [2021-10-28 09:37:05,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:37:05,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:37:05,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:37:05,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:37:05,422 INFO L87 Difference]: Start difference. First operand 154 states and 165 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:37:05,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:05,665 INFO L93 Difference]: Finished difference Result 153 states and 164 transitions. [2021-10-28 09:37:05,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:37:05,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-10-28 09:37:05,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:05,668 INFO L225 Difference]: With dead ends: 153 [2021-10-28 09:37:05,668 INFO L226 Difference]: Without dead ends: 153 [2021-10-28 09:37:05,668 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:37:05,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-10-28 09:37:05,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2021-10-28 09:37:05,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 74 states have (on average 1.7162162162162162) internal successors, (127), 122 states have internal predecessors, (127), 19 states have call successors, (19), 14 states have call predecessors, (19), 13 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-10-28 09:37:05,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 164 transitions. [2021-10-28 09:37:05,700 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 164 transitions. Word has length 10 [2021-10-28 09:37:05,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:05,700 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 164 transitions. [2021-10-28 09:37:05,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:37:05,701 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 164 transitions. [2021-10-28 09:37:05,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 09:37:05,702 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:05,702 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:37:05,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:37:05,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:37:05,911 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting gl_insertErr1REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 44 more)] === [2021-10-28 09:37:05,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:05,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1666329521, now seen corresponding path program 1 times [2021-10-28 09:37:05,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:37:05,912 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [687771638] [2021-10-28 09:37:05,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:05,913 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:37:05,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:37:05,914 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:37:05,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 09:37:06,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:06,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 09:37:06,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:37:06,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-10-28 09:37:06,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:06,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:37:06,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:06,251 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:37:06,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [687771638] [2021-10-28 09:37:06,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [687771638] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:06,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:06,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-28 09:37:06,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410755540] [2021-10-28 09:37:06,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:37:06,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:37:06,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:37:06,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:37:06,267 INFO L87 Difference]: Start difference. First operand 153 states and 164 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:37:06,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:06,697 INFO L93 Difference]: Finished difference Result 152 states and 163 transitions. [2021-10-28 09:37:06,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:37:06,699 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-10-28 09:37:06,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:06,701 INFO L225 Difference]: With dead ends: 152 [2021-10-28 09:37:06,701 INFO L226 Difference]: Without dead ends: 152 [2021-10-28 09:37:06,701 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:37:06,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-10-28 09:37:06,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2021-10-28 09:37:06,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 74 states have (on average 1.7027027027027026) internal successors, (126), 121 states have internal predecessors, (126), 19 states have call successors, (19), 14 states have call predecessors, (19), 13 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-10-28 09:37:06,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 163 transitions. [2021-10-28 09:37:06,715 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 163 transitions. Word has length 10 [2021-10-28 09:37:06,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:06,715 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 163 transitions. [2021-10-28 09:37:06,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:37:06,716 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 163 transitions. [2021-10-28 09:37:06,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-28 09:37:06,717 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:06,717 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:37:06,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:37:06,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:37:06,930 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting list_addErr0REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 44 more)] === [2021-10-28 09:37:06,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:06,931 INFO L85 PathProgramCache]: Analyzing trace with hash -390579196, now seen corresponding path program 1 times [2021-10-28 09:37:06,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:37:06,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1753086245] [2021-10-28 09:37:06,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:06,932 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:37:06,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:37:06,934 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:37:06,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 09:37:07,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:07,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 09:37:07,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:37:07,209 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-28 09:37:07,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-28 09:37:07,460 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-10-28 09:37:07,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2021-10-28 09:37:07,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:07,767 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:37:24,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:24,248 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:37:24,249 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1753086245] [2021-10-28 09:37:24,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1753086245] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:24,249 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:24,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-28 09:37:24,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077480010] [2021-10-28 09:37:24,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 09:37:24,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:37:24,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 09:37:24,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=50, Unknown=2, NotChecked=0, Total=72 [2021-10-28 09:37:24,252 INFO L87 Difference]: Start difference. First operand 152 states and 163 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 09:37:26,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:26,061 INFO L93 Difference]: Finished difference Result 182 states and 194 transitions. [2021-10-28 09:37:26,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:37:26,062 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2021-10-28 09:37:26,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:26,066 INFO L225 Difference]: With dead ends: 182 [2021-10-28 09:37:26,066 INFO L226 Difference]: Without dead ends: 182 [2021-10-28 09:37:26,067 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 6 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 16.4s TimeCoverageRelationStatistics Valid=45, Invalid=85, Unknown=2, NotChecked=0, Total=132 [2021-10-28 09:37:26,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-10-28 09:37:26,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 165. [2021-10-28 09:37:26,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 84 states have (on average 1.630952380952381) internal successors, (137), 130 states have internal predecessors, (137), 21 states have call successors, (21), 16 states have call predecessors, (21), 16 states have return successors, (22), 20 states have call predecessors, (22), 20 states have call successors, (22) [2021-10-28 09:37:26,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 180 transitions. [2021-10-28 09:37:26,104 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 180 transitions. Word has length 13 [2021-10-28 09:37:26,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:26,105 INFO L470 AbstractCegarLoop]: Abstraction has 165 states and 180 transitions. [2021-10-28 09:37:26,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 09:37:26,105 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 180 transitions. [2021-10-28 09:37:26,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-28 09:37:26,106 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:26,106 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:37:26,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:37:26,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:37:26,307 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting list_addErr1REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 44 more)] === [2021-10-28 09:37:26,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:26,307 INFO L85 PathProgramCache]: Analyzing trace with hash -390579195, now seen corresponding path program 1 times [2021-10-28 09:37:26,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:37:26,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506936041] [2021-10-28 09:37:26,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:26,308 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:37:26,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:37:26,311 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:37:26,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 09:37:26,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:26,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 09:37:26,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:37:26,606 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-10-28 09:37:26,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 42 [2021-10-28 09:37:26,687 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-28 09:37:26,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 63 [2021-10-28 09:37:27,285 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-10-28 09:37:27,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 55 [2021-10-28 09:37:27,320 INFO L354 Elim1Store]: treesize reduction 2, result has 92.0 percent of original size [2021-10-28 09:37:27,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 68 [2021-10-28 09:37:27,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:27,870 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:37:38,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:38,741 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:37:38,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506936041] [2021-10-28 09:37:38,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [506936041] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:37:38,741 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:37:38,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-28 09:37:38,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550224537] [2021-10-28 09:37:38,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 09:37:38,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:37:38,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:37:38,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=66, Unknown=1, NotChecked=0, Total=90 [2021-10-28 09:37:38,744 INFO L87 Difference]: Start difference. First operand 165 states and 180 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 7 states have internal predecessors, (14), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 09:37:47,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:47,822 INFO L93 Difference]: Finished difference Result 220 states and 229 transitions. [2021-10-28 09:37:47,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:37:47,824 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 7 states have internal predecessors, (14), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2021-10-28 09:37:47,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:47,826 INFO L225 Difference]: With dead ends: 220 [2021-10-28 09:37:47,827 INFO L226 Difference]: Without dead ends: 220 [2021-10-28 09:37:47,828 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 16.7s TimeCoverageRelationStatistics Valid=67, Invalid=141, Unknown=2, NotChecked=0, Total=210 [2021-10-28 09:37:47,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-10-28 09:37:47,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 181. [2021-10-28 09:37:47,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 101 states have (on average 1.6336633663366336) internal successors, (165), 144 states have internal predecessors, (165), 21 states have call successors, (21), 18 states have call predecessors, (21), 18 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2021-10-28 09:37:47,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 207 transitions. [2021-10-28 09:37:47,858 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 207 transitions. Word has length 13 [2021-10-28 09:37:47,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:47,858 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 207 transitions. [2021-10-28 09:37:47,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 7 states have internal predecessors, (14), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 09:37:47,859 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 207 transitions. [2021-10-28 09:37:47,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 09:37:47,859 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:47,860 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:37:47,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:37:48,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:37:48,071 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __list_addErr0REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 44 more)] === [2021-10-28 09:37:48,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:48,071 INFO L85 PathProgramCache]: Analyzing trace with hash -678212586, now seen corresponding path program 1 times [2021-10-28 09:37:48,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:37:48,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [359439760] [2021-10-28 09:37:48,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:48,073 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:37:48,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:37:48,074 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:37:48,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 09:37:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:48,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-28 09:37:48,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:37:48,447 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-28 09:37:48,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-28 09:37:48,846 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-28 09:37:48,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 18 treesize of output 18 [2021-10-28 09:37:49,011 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-28 09:37:49,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 60 treesize of output 15 [2021-10-28 09:37:49,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 17 [2021-10-28 09:37:49,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:49,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:37:49,287 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-10-28 09:37:49,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 27 treesize of output 26 [2021-10-28 09:38:06,433 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~0.base_13 (_ BitVec 32)) (gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~0.base_13))))) (= (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_13 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_13) gl_insert_~node~0.offset v_DerPreprocessor_1) (bvadd gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) gl_insert_~node~0.offset) v_DerPreprocessor_3) (bvadd (_ bv3 32) gl_insert_~node~0.offset) v_DerPreprocessor_4)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) |c_~#gl_list~0.base|))) is different from false [2021-10-28 09:38:08,505 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~0.base_13 (_ BitVec 32)) (gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~0.base_13)))))) (= (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_13 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_13) gl_insert_~node~0.offset v_DerPreprocessor_1) (bvadd gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd (_ bv2 32) gl_insert_~node~0.offset) v_DerPreprocessor_3) (bvadd (_ bv3 32) gl_insert_~node~0.offset) v_DerPreprocessor_4)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) |c_~#gl_list~0.base|))) is different from false [2021-10-28 09:38:08,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:08,814 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:08,817 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [359439760] [2021-10-28 09:38:08,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [359439760] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:08,818 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:08,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 11] imperfect sequences [] total 13 [2021-10-28 09:38:08,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672232039] [2021-10-28 09:38:08,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 09:38:08,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:08,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 09:38:08,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=103, Unknown=7, NotChecked=42, Total=182 [2021-10-28 09:38:08,824 INFO L87 Difference]: Start difference. First operand 181 states and 207 transitions. Second operand has 14 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 6 states have call successors, (9), 7 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 09:38:12,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:12,731 INFO L93 Difference]: Finished difference Result 204 states and 232 transitions. [2021-10-28 09:38:12,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 09:38:12,732 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 6 states have call successors, (9), 7 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2021-10-28 09:38:12,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:12,734 INFO L225 Difference]: With dead ends: 204 [2021-10-28 09:38:12,735 INFO L226 Difference]: Without dead ends: 204 [2021-10-28 09:38:12,735 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 15 SyntacticMatches, 6 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 21.4s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=8, NotChecked=70, Total=420 [2021-10-28 09:38:12,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-10-28 09:38:12,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 196. [2021-10-28 09:38:12,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 112 states have (on average 1.6339285714285714) internal successors, (183), 155 states have internal predecessors, (183), 24 states have call successors, (24), 21 states have call predecessors, (24), 19 states have return successors, (24), 20 states have call predecessors, (24), 23 states have call successors, (24) [2021-10-28 09:38:12,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 231 transitions. [2021-10-28 09:38:12,749 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 231 transitions. Word has length 16 [2021-10-28 09:38:12,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:12,750 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 231 transitions. [2021-10-28 09:38:12,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 6 states have call successors, (9), 7 states have call predecessors, (9), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 09:38:12,750 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 231 transitions. [2021-10-28 09:38:12,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 09:38:12,751 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:12,751 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:38:12,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:12,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:12,968 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __list_addErr1REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 44 more)] === [2021-10-28 09:38:12,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:12,970 INFO L85 PathProgramCache]: Analyzing trace with hash -678212585, now seen corresponding path program 1 times [2021-10-28 09:38:12,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:12,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1678801204] [2021-10-28 09:38:12,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:12,974 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:12,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:12,975 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:13,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 09:38:13,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:13,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-28 09:38:13,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:13,518 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-28 09:38:13,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 49 [2021-10-28 09:38:13,620 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-10-28 09:38:13,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 63 [2021-10-28 09:38:14,404 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-10-28 09:38:14,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 54 [2021-10-28 09:38:14,480 INFO L354 Elim1Store]: treesize reduction 2, result has 92.0 percent of original size [2021-10-28 09:38:14,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 67 [2021-10-28 09:38:15,116 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-28 09:38:15,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 116 treesize of output 71 [2021-10-28 09:38:15,187 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-28 09:38:15,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 68 treesize of output 23 [2021-10-28 09:38:15,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 26 [2021-10-28 09:38:15,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2021-10-28 09:38:15,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:15,641 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:39:35,682 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_gl_insert_~node~0.base_14 (_ BitVec 32))) (or (and (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse0 (bvadd gl_insert_~node~0.offset (_ bv1 32))) (.cse1 (bvadd (_ bv2 32) gl_insert_~node~0.offset)) (.cse2 (bvadd (_ bv3 32) gl_insert_~node~0.offset))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~0.base_14 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~0.base_14) gl_insert_~node~0.offset v_DerPreprocessor_9) .cse0 v_DerPreprocessor_10) .cse1 v_DerPreprocessor_11) .cse2 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (select (store |c_#length| v_gl_insert_~node~0.base_14 (_ bv12 32)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_14 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_14) gl_insert_~node~0.offset v_DerPreprocessor_5) .cse0 v_DerPreprocessor_6) .cse1 v_DerPreprocessor_7) .cse2 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))) (forall ((gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse3 (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~0.base_14 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~0.base_14) gl_insert_~node~0.offset v_DerPreprocessor_9) (bvadd gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) gl_insert_~node~0.offset) v_DerPreprocessor_11) (bvadd (_ bv3 32) gl_insert_~node~0.offset) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd (_ bv4 32) .cse3) (bvadd (_ bv8 32) .cse3))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~0.base_14))))))))))))))) is different from false [2021-10-28 09:39:36,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:39:36,240 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:39:36,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1678801204] [2021-10-28 09:39:36,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1678801204] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:39:36,241 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:39:36,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 11] imperfect sequences [] total 19 [2021-10-28 09:39:36,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764948350] [2021-10-28 09:39:36,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-28 09:39:36,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:39:36,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-28 09:39:36,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=277, Unknown=20, NotChecked=34, Total=380 [2021-10-28 09:39:36,245 INFO L87 Difference]: Start difference. First operand 196 states and 231 transitions. Second operand has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 states have internal predecessors, (18), 8 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 09:40:06,079 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (select (select |c_#memory_$Pointer$.offset| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (let ((.cse5 (bvadd .cse4 (_ bv8 32)))) (and (exists ((gl_insert_~node~0.base (_ BitVec 32))) (= (select |c_#length| gl_insert_~node~0.base) (_ bv12 32))) (= (_ bv8 32) (select |c_#length| |c___list_add_#in~next.base|)) (= (_ bv0 32) |c___list_add_#in~next.offset|) (forall ((v_gl_insert_~node~0.base_14 (_ BitVec 32))) (or (and (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse0 (bvadd gl_insert_~node~0.offset (_ bv1 32))) (.cse1 (bvadd (_ bv2 32) gl_insert_~node~0.offset)) (.cse2 (bvadd (_ bv3 32) gl_insert_~node~0.offset))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~0.base_14 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~0.base_14) gl_insert_~node~0.offset v_DerPreprocessor_9) .cse0 v_DerPreprocessor_10) .cse1 v_DerPreprocessor_11) .cse2 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (select (store |c_#length| v_gl_insert_~node~0.base_14 (_ bv12 32)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_14 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_14) gl_insert_~node~0.offset v_DerPreprocessor_5) .cse0 v_DerPreprocessor_6) .cse1 v_DerPreprocessor_7) .cse2 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))) (forall ((gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse3 (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~0.base_14 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~0.base_14) gl_insert_~node~0.offset v_DerPreprocessor_9) (bvadd gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) gl_insert_~node~0.offset) v_DerPreprocessor_11) (bvadd (_ bv3 32) gl_insert_~node~0.offset) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd (_ bv4 32) .cse3) (bvadd (_ bv8 32) .cse3))))) (not (= (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~0.base_14)))))))))) (_ bv0 1))))) (= c___list_add_~next.offset (_ bv0 32)) (= (_ bv8 32) (select |c_#length| c___list_add_~next.base)) (bvule (bvadd (_ bv4 32) .cse4) .cse5) (bvule .cse5 (select |c_#length| (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (forall ((v_gl_insert_~node~0.base_14 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| v_gl_insert_~node~0.base_14))))) (and (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse6 (bvadd gl_insert_~node~0.offset (_ bv1 32))) (.cse7 (bvadd (_ bv2 32) gl_insert_~node~0.offset)) (.cse8 (bvadd (_ bv3 32) gl_insert_~node~0.offset))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~0.base_14 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~0.base_14) gl_insert_~node~0.offset v_DerPreprocessor_9) .cse6 v_DerPreprocessor_10) .cse7 v_DerPreprocessor_11) .cse8 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (select (store |c_#length| v_gl_insert_~node~0.base_14 (_ bv12 32)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_14 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_14) gl_insert_~node~0.offset v_DerPreprocessor_5) .cse6 v_DerPreprocessor_6) .cse7 v_DerPreprocessor_7) .cse8 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))) (forall ((gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse9 (select (select (store |c_#memory_$Pointer$.offset| v_gl_insert_~node~0.base_14 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_gl_insert_~node~0.base_14) gl_insert_~node~0.offset v_DerPreprocessor_9) (bvadd gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd (_ bv2 32) gl_insert_~node~0.offset) v_DerPreprocessor_11) (bvadd (_ bv3 32) gl_insert_~node~0.offset) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd (_ bv4 32) .cse9) (bvadd (_ bv8 32) .cse9)))))))))) is different from false [2021-10-28 09:40:25,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:40:25,770 INFO L93 Difference]: Finished difference Result 203 states and 231 transitions. [2021-10-28 09:40:25,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 09:40:25,774 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 states have internal predecessors, (18), 8 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2021-10-28 09:40:25,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:40:25,777 INFO L225 Difference]: With dead ends: 203 [2021-10-28 09:40:25,777 INFO L226 Difference]: Without dead ends: 203 [2021-10-28 09:40:25,778 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 11 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 107.4s TimeCoverageRelationStatistics Valid=130, Invalid=499, Unknown=29, NotChecked=98, Total=756 [2021-10-28 09:40:25,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-10-28 09:40:25,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 196. [2021-10-28 09:40:25,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 112 states have (on average 1.625) internal successors, (182), 155 states have internal predecessors, (182), 24 states have call successors, (24), 21 states have call predecessors, (24), 19 states have return successors, (24), 20 states have call predecessors, (24), 23 states have call successors, (24) [2021-10-28 09:40:25,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 230 transitions. [2021-10-28 09:40:25,794 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 230 transitions. Word has length 16 [2021-10-28 09:40:25,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:40:25,794 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 230 transitions. [2021-10-28 09:40:25,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 states have internal predecessors, (18), 8 states have call successors, (11), 8 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 09:40:25,795 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 230 transitions. [2021-10-28 09:40:25,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 09:40:25,795 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:40:25,795 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:40:25,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:25,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:40:25,996 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __list_addErr2REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 44 more)] === [2021-10-28 09:40:25,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:25,997 INFO L85 PathProgramCache]: Analyzing trace with hash 450246382, now seen corresponding path program 1 times [2021-10-28 09:40:25,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:40:25,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1475283674] [2021-10-28 09:40:25,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:25,998 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:40:25,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:40:25,999 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:40:26,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 09:40:26,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:26,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:40:26,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:40:26,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-10-28 09:40:26,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:40:26,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:40:26,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:40:26,523 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:40:26,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1475283674] [2021-10-28 09:40:26,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1475283674] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:40:26,523 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:40:26,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-10-28 09:40:26,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785557266] [2021-10-28 09:40:26,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:40:26,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:40:26,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:40:26,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:40:26,525 INFO L87 Difference]: Start difference. First operand 196 states and 230 transitions. Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:40:27,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:40:27,393 INFO L93 Difference]: Finished difference Result 201 states and 225 transitions. [2021-10-28 09:40:27,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:40:27,394 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-10-28 09:40:27,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:40:27,396 INFO L225 Difference]: With dead ends: 201 [2021-10-28 09:40:27,396 INFO L226 Difference]: Without dead ends: 201 [2021-10-28 09:40:27,397 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:40:27,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-10-28 09:40:27,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 195. [2021-10-28 09:40:27,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 112 states have (on average 1.5803571428571428) internal successors, (177), 154 states have internal predecessors, (177), 24 states have call successors, (24), 21 states have call predecessors, (24), 19 states have return successors, (24), 20 states have call predecessors, (24), 23 states have call successors, (24) [2021-10-28 09:40:27,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 225 transitions. [2021-10-28 09:40:27,410 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 225 transitions. Word has length 17 [2021-10-28 09:40:27,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:40:27,410 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 225 transitions. [2021-10-28 09:40:27,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:40:27,411 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 225 transitions. [2021-10-28 09:40:27,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 09:40:27,412 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:40:27,412 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:40:27,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:27,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:40:27,627 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __list_addErr3REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 44 more)] === [2021-10-28 09:40:27,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:27,628 INFO L85 PathProgramCache]: Analyzing trace with hash 450246383, now seen corresponding path program 1 times [2021-10-28 09:40:27,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:40:27,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1629097431] [2021-10-28 09:40:27,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:27,629 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:40:27,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:40:27,630 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:40:27,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-28 09:40:27,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:27,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 09:40:27,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:40:27,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-10-28 09:40:28,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:40:28,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:40:28,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:40:28,754 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:40:28,754 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1629097431] [2021-10-28 09:40:28,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1629097431] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:40:28,754 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:40:28,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-10-28 09:40:28,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519079125] [2021-10-28 09:40:28,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 09:40:28,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:40:28,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 09:40:28,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:40:28,756 INFO L87 Difference]: Start difference. First operand 195 states and 225 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 8 states have internal predecessors, (18), 5 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:40:30,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:40:30,796 INFO L93 Difference]: Finished difference Result 199 states and 221 transitions. [2021-10-28 09:40:30,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:40:30,798 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 8 states have internal predecessors, (18), 5 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-10-28 09:40:30,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:40:30,800 INFO L225 Difference]: With dead ends: 199 [2021-10-28 09:40:30,800 INFO L226 Difference]: Without dead ends: 199 [2021-10-28 09:40:30,801 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:40:30,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-10-28 09:40:30,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 195. [2021-10-28 09:40:30,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 112 states have (on average 1.5446428571428572) internal successors, (173), 154 states have internal predecessors, (173), 24 states have call successors, (24), 21 states have call predecessors, (24), 19 states have return successors, (24), 20 states have call predecessors, (24), 23 states have call successors, (24) [2021-10-28 09:40:30,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 221 transitions. [2021-10-28 09:40:30,812 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 221 transitions. Word has length 17 [2021-10-28 09:40:30,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:40:30,812 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 221 transitions. [2021-10-28 09:40:30,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 8 states have internal predecessors, (18), 5 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:40:30,813 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 221 transitions. [2021-10-28 09:40:30,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 09:40:30,814 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:40:30,814 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:40:30,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:31,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:40:31,028 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __list_addErr6REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 44 more)] === [2021-10-28 09:40:31,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:31,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1104921519, now seen corresponding path program 1 times [2021-10-28 09:40:31,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:40:31,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1997204079] [2021-10-28 09:40:31,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:31,029 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:40:31,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:40:31,030 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:40:31,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-28 09:40:31,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:31,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:40:31,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:40:31,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:40:31,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:40:31,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:40:31,466 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:40:31,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1997204079] [2021-10-28 09:40:31,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1997204079] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:40:31,466 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:40:31,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-28 09:40:31,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164733998] [2021-10-28 09:40:31,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:40:31,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:40:31,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:40:31,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:40:31,468 INFO L87 Difference]: Start difference. First operand 195 states and 221 transitions. Second operand has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:40:31,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:40:31,959 INFO L93 Difference]: Finished difference Result 194 states and 218 transitions. [2021-10-28 09:40:31,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:40:31,960 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2021-10-28 09:40:31,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:40:31,962 INFO L225 Difference]: With dead ends: 194 [2021-10-28 09:40:31,963 INFO L226 Difference]: Without dead ends: 194 [2021-10-28 09:40:31,963 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:40:31,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-10-28 09:40:31,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2021-10-28 09:40:31,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 112 states have (on average 1.5178571428571428) internal successors, (170), 153 states have internal predecessors, (170), 24 states have call successors, (24), 21 states have call predecessors, (24), 19 states have return successors, (24), 20 states have call predecessors, (24), 23 states have call successors, (24) [2021-10-28 09:40:31,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 218 transitions. [2021-10-28 09:40:31,975 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 218 transitions. Word has length 19 [2021-10-28 09:40:31,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:40:31,976 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 218 transitions. [2021-10-28 09:40:31,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:40:31,976 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 218 transitions. [2021-10-28 09:40:31,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 09:40:31,977 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:40:31,977 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:40:31,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:32,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:40:32,192 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __list_addErr7REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 44 more)] === [2021-10-28 09:40:32,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:32,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1104921518, now seen corresponding path program 1 times [2021-10-28 09:40:32,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:40:32,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1111787459] [2021-10-28 09:40:32,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:32,193 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:40:32,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:40:32,195 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:40:32,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-28 09:40:32,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:32,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 09:40:32,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:40:32,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:40:32,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:40:33,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 8 treesize of output 6 [2021-10-28 09:40:33,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:40:33,575 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:40:33,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1111787459] [2021-10-28 09:40:33,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1111787459] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:40:33,576 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:40:33,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-28 09:40:33,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192645284] [2021-10-28 09:40:33,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 09:40:33,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:40:33,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 09:40:33,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:40:33,579 INFO L87 Difference]: Start difference. First operand 194 states and 218 transitions. Second operand has 14 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 9 states have internal predecessors, (24), 5 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 09:40:35,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:40:35,924 INFO L93 Difference]: Finished difference Result 195 states and 215 transitions. [2021-10-28 09:40:35,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 09:40:35,939 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 9 states have internal predecessors, (24), 5 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2021-10-28 09:40:35,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:40:35,941 INFO L225 Difference]: With dead ends: 195 [2021-10-28 09:40:35,942 INFO L226 Difference]: Without dead ends: 195 [2021-10-28 09:40:35,942 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2021-10-28 09:40:35,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-10-28 09:40:35,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 193. [2021-10-28 09:40:35,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 112 states have (on average 1.4910714285714286) internal successors, (167), 152 states have internal predecessors, (167), 24 states have call successors, (24), 21 states have call predecessors, (24), 19 states have return successors, (24), 20 states have call predecessors, (24), 23 states have call successors, (24) [2021-10-28 09:40:35,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 215 transitions. [2021-10-28 09:40:35,954 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 215 transitions. Word has length 19 [2021-10-28 09:40:35,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:40:35,955 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 215 transitions. [2021-10-28 09:40:35,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 9 states have internal predecessors, (24), 5 states have call successors, (11), 7 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 09:40:35,955 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 215 transitions. [2021-10-28 09:40:35,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-28 09:40:35,957 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:40:35,957 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:40:35,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:36,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:40:36,172 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting list_emptyErr0REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 44 more)] === [2021-10-28 09:40:36,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:36,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1290860317, now seen corresponding path program 1 times [2021-10-28 09:40:36,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:40:36,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [41068562] [2021-10-28 09:40:36,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:36,174 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:40:36,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:40:36,175 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:40:36,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-28 09:40:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:36,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 09:40:36,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:40:36,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:40:36,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:40:37,163 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-28 09:40:37,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2021-10-28 09:40:37,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:40:37,191 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:40:37,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [41068562] [2021-10-28 09:40:37,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [41068562] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:40:37,192 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:40:37,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 7 [2021-10-28 09:40:37,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734833369] [2021-10-28 09:40:37,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:40:37,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:40:37,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:40:37,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:40:37,193 INFO L87 Difference]: Start difference. First operand 193 states and 215 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 09:40:38,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:40:38,336 INFO L93 Difference]: Finished difference Result 192 states and 213 transitions. [2021-10-28 09:40:38,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:40:38,337 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 34 [2021-10-28 09:40:38,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:40:38,339 INFO L225 Difference]: With dead ends: 192 [2021-10-28 09:40:38,339 INFO L226 Difference]: Without dead ends: 192 [2021-10-28 09:40:38,340 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 58 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:40:38,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2021-10-28 09:40:38,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2021-10-28 09:40:38,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 112 states have (on average 1.4732142857142858) internal successors, (165), 151 states have internal predecessors, (165), 24 states have call successors, (24), 21 states have call predecessors, (24), 19 states have return successors, (24), 20 states have call predecessors, (24), 23 states have call successors, (24) [2021-10-28 09:40:38,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 213 transitions. [2021-10-28 09:40:38,357 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 213 transitions. Word has length 34 [2021-10-28 09:40:38,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:40:38,357 INFO L470 AbstractCegarLoop]: Abstraction has 192 states and 213 transitions. [2021-10-28 09:40:38,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-28 09:40:38,358 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 213 transitions. [2021-10-28 09:40:38,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-28 09:40:38,359 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:40:38,359 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:40:38,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:38,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:40:38,559 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting list_emptyErr1REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 44 more)] === [2021-10-28 09:40:38,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:38,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1290860316, now seen corresponding path program 1 times [2021-10-28 09:40:38,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:40:38,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1673244190] [2021-10-28 09:40:38,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:38,561 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:40:38,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:40:38,561 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:40:38,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-28 09:40:38,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:38,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 09:40:38,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:40:39,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:40:39,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:40:39,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 8 treesize of output 6 [2021-10-28 09:40:40,777 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 09:40:40,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 16 treesize of output 20 [2021-10-28 09:40:41,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:40:41,087 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:40:41,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1673244190] [2021-10-28 09:40:41,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1673244190] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:40:41,087 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:40:41,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 8] imperfect sequences [] total 14 [2021-10-28 09:40:41,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674309189] [2021-10-28 09:40:41,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 09:40:41,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:40:41,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 09:40:41,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:40:41,090 INFO L87 Difference]: Start difference. First operand 192 states and 213 transitions. Second operand has 15 states, 13 states have (on average 3.230769230769231) internal successors, (42), 12 states have internal predecessors, (42), 7 states have call successors, (15), 7 states have call predecessors, (15), 7 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2021-10-28 09:40:43,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:40:43,593 INFO L93 Difference]: Finished difference Result 191 states and 211 transitions. [2021-10-28 09:40:43,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:40:43,595 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 3.230769230769231) internal successors, (42), 12 states have internal predecessors, (42), 7 states have call successors, (15), 7 states have call predecessors, (15), 7 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) Word has length 34 [2021-10-28 09:40:43,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:40:43,596 INFO L225 Difference]: With dead ends: 191 [2021-10-28 09:40:43,596 INFO L226 Difference]: Without dead ends: 191 [2021-10-28 09:40:43,597 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2021-10-28 09:40:43,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2021-10-28 09:40:43,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2021-10-28 09:40:43,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 112 states have (on average 1.4553571428571428) internal successors, (163), 150 states have internal predecessors, (163), 24 states have call successors, (24), 21 states have call predecessors, (24), 19 states have return successors, (24), 20 states have call predecessors, (24), 23 states have call successors, (24) [2021-10-28 09:40:43,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 211 transitions. [2021-10-28 09:40:43,606 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 211 transitions. Word has length 34 [2021-10-28 09:40:43,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:40:43,607 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 211 transitions. [2021-10-28 09:40:43,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 3.230769230769231) internal successors, (42), 12 states have internal predecessors, (42), 7 states have call successors, (15), 7 states have call predecessors, (15), 7 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2021-10-28 09:40:43,607 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 211 transitions. [2021-10-28 09:40:43,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-28 09:40:43,609 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:40:43,609 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:40:43,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-28 09:40:43,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:40:43,825 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __list_addErr0REQUIRES_VIOLATION === [list_emptyErr0REQUIRES_VIOLATION, list_emptyErr1REQUIRES_VIOLATION, __list_delErr0REQUIRES_VIOLATION, __list_delErr1REQUIRES_VIOLATION (and 44 more)] === [2021-10-28 09:40:43,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:40:43,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1952450521, now seen corresponding path program 1 times [2021-10-28 09:40:43,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:40:43,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534695688] [2021-10-28 09:40:43,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:43,827 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:40:43,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:40:43,828 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:40:43,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-28 09:40:44,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:44,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 32 conjunts are in the unsatisfiable core [2021-10-28 09:40:44,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:40:44,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-10-28 09:40:44,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 11 treesize of output 7 [2021-10-28 09:40:45,151 INFO L354 Elim1Store]: treesize reduction 54, result has 37.9 percent of original size [2021-10-28 09:40:45,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 40 treesize of output 61 [2021-10-28 09:40:45,434 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-28 09:40:45,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 84 treesize of output 35 [2021-10-28 09:40:45,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 64 treesize of output 52 [2021-10-28 09:40:46,447 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:40:46,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:40:57,874 WARN L838 $PredicateComparison]: unable to prove that (forall ((gl_insert_~node~0.offset (_ BitVec 32)) (v_gl_insert_~node~0.base_30 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| v_gl_insert_~node~0.base_30)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_gl_insert_~node~0.base_30 (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_30 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_30) gl_insert_~node~0.offset v_DerPreprocessor_13) (bvadd gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_14) (bvadd (_ bv2 32) gl_insert_~node~0.offset) v_DerPreprocessor_15) (bvadd (_ bv3 32) gl_insert_~node~0.offset) v_DerPreprocessor_16)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))))))))) (_ bv1 1))))) is different from false [2021-10-28 09:40:58,949 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:40:58,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534695688] [2021-10-28 09:40:58,951 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-28 09:40:58,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [870019147] [2021-10-28 09:40:58,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:40:58,951 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-28 09:40:58,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/cvc4 [2021-10-28 09:40:58,960 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-28 09:40:58,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-10-28 09:40:59,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:40:59,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-28 09:40:59,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:40:59,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 3 [2021-10-28 09:40:59,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-10-28 09:41:00,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 11 treesize of output 7 [2021-10-28 09:41:01,657 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-10-28 09:41:01,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 36 [2021-10-28 09:41:02,014 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-28 09:41:02,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 87 treesize of output 38 [2021-10-28 09:41:02,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 56 treesize of output 44 [2021-10-28 09:41:04,264 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:04,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:41:15,030 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 09:41:15,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 13737 treesize of output 13335 [2021-10-28 09:41:15,609 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-28 09:41:15,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458138557] [2021-10-28 09:41:15,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:41:15,609 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:41:15,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:41:15,622 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:41:15,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-28 09:41:16,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:41:16,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-28 09:41:16,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:41:16,242 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-28 09:41:16,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-28 09:41:18,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 8 treesize of output 6 [2021-10-28 09:41:18,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-10-28 09:41:19,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 11 treesize of output 7 [2021-10-28 09:41:19,487 INFO L354 Elim1Store]: treesize reduction 20, result has 28.6 percent of original size [2021-10-28 09:41:19,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 24 [2021-10-28 09:41:19,702 INFO L354 Elim1Store]: treesize reduction 54, result has 37.9 percent of original size [2021-10-28 09:41:19,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 40 treesize of output 61 [2021-10-28 09:41:19,923 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-28 09:41:19,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 83 treesize of output 34 [2021-10-28 09:41:20,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 64 treesize of output 52 [2021-10-28 09:41:20,441 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:41:20,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:41:22,596 WARN L838 $PredicateComparison]: unable to prove that (forall ((gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_21 (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| c_gl_insert_~node~0.base (store (store (store (store (select |c_#memory_$Pointer$.base| c_gl_insert_~node~0.base) gl_insert_~node~0.offset v_DerPreprocessor_21) (bvadd gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_22) (bvadd (_ bv2 32) gl_insert_~node~0.offset) v_DerPreprocessor_23) (bvadd (_ bv3 32) gl_insert_~node~0.offset) v_DerPreprocessor_24)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))))))))) (_ bv1 1)))) is different from false [2021-10-28 09:41:24,664 WARN L838 $PredicateComparison]: unable to prove that (forall ((gl_insert_~node~0.offset (_ BitVec 32)) (v_gl_insert_~node~0.base_41 (_ BitVec 32)) (v_DerPreprocessor_21 (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| v_gl_insert_~node~0.base_41)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_gl_insert_~node~0.base_41 (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_41 (store (store (store (store (select |c_#memory_$Pointer$.base| v_gl_insert_~node~0.base_41) gl_insert_~node~0.offset v_DerPreprocessor_21) (bvadd gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_22) (bvadd (_ bv2 32) gl_insert_~node~0.offset) v_DerPreprocessor_23) (bvadd (_ bv3 32) gl_insert_~node~0.offset) v_DerPreprocessor_24)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))))))))) (_ bv1 1))))) is different from false [2021-10-28 09:41:25,221 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-28 09:41:25,222 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:41:25,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-28 09:41:25,222 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-28 09:41:25,222 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-28 09:41:25,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr0REQUIRES_VIOLATION [2021-10-28 09:41:25,231 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_emptyErr0REQUIRES_VIOLATION [2021-10-28 09:41:25,232 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_emptyErr1REQUIRES_VIOLATION [2021-10-28 09:41:25,232 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr0REQUIRES_VIOLATION [2021-10-28 09:41:25,232 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr1REQUIRES_VIOLATION [2021-10-28 09:41:25,232 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr2REQUIRES_VIOLATION [2021-10-28 09:41:25,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_delErr3REQUIRES_VIOLATION [2021-10-28 09:41:25,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr0REQUIRES_VIOLATION [2021-10-28 09:41:25,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_insertErr1REQUIRES_VIOLATION [2021-10-28 09:41:25,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr0REQUIRES_VIOLATION [2021-10-28 09:41:25,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr1REQUIRES_VIOLATION [2021-10-28 09:41:25,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr2REQUIRES_VIOLATION [2021-10-28 09:41:25,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr3REQUIRES_VIOLATION [2021-10-28 09:41:25,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr4REQUIRES_VIOLATION [2021-10-28 09:41:25,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr5REQUIRES_VIOLATION [2021-10-28 09:41:25,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:41:25,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:41:25,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_destroyErr8ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:41:25,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr1REQUIRES_VIOLATION [2021-10-28 09:41:25,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr2REQUIRES_VIOLATION [2021-10-28 09:41:25,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr3REQUIRES_VIOLATION [2021-10-28 09:41:25,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr4REQUIRES_VIOLATION [2021-10-28 09:41:25,235 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr5REQUIRES_VIOLATION [2021-10-28 09:41:25,236 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr6REQUIRES_VIOLATION [2021-10-28 09:41:25,236 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __list_addErr7REQUIRES_VIOLATION [2021-10-28 09:41:25,236 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 09:41:25,236 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr0REQUIRES_VIOLATION [2021-10-28 09:41:25,236 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_addErr1REQUIRES_VIOLATION [2021-10-28 09:41:25,237 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_delErr0REQUIRES_VIOLATION [2021-10-28 09:41:25,237 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_delErr1REQUIRES_VIOLATION [2021-10-28 09:41:25,237 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_delErr2REQUIRES_VIOLATION [2021-10-28 09:41:25,237 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_delErr3REQUIRES_VIOLATION [2021-10-28 09:41:25,238 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_delErr4REQUIRES_VIOLATION [2021-10-28 09:41:25,238 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_delErr5REQUIRES_VIOLATION [2021-10-28 09:41:25,238 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_delErr6REQUIRES_VIOLATION [2021-10-28 09:41:25,238 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_delErr7REQUIRES_VIOLATION [2021-10-28 09:41:25,238 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr0REQUIRES_VIOLATION [2021-10-28 09:41:25,238 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr1REQUIRES_VIOLATION [2021-10-28 09:41:25,239 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr2REQUIRES_VIOLATION [2021-10-28 09:41:25,239 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location list_moveErr3REQUIRES_VIOLATION [2021-10-28 09:41:25,239 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location val_from_nodeErr0REQUIRES_VIOLATION [2021-10-28 09:41:25,239 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location val_from_nodeErr1REQUIRES_VIOLATION [2021-10-28 09:41:25,239 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_seek_maxErr0REQUIRES_VIOLATION [2021-10-28 09:41:25,239 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_seek_maxErr1REQUIRES_VIOLATION [2021-10-28 09:41:25,239 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_seek_maxErr2REQUIRES_VIOLATION [2021-10-28 09:41:25,239 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_seek_maxErr3REQUIRES_VIOLATION [2021-10-28 09:41:25,240 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_seek_maxErr4REQUIRES_VIOLATION [2021-10-28 09:41:25,240 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location gl_seek_maxErr5REQUIRES_VIOLATION [2021-10-28 09:41:25,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-28 09:41:25,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-10-28 09:41:25,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-28 09:41:25,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:41:25,844 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:41:25,848 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:41:25,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:41:25 BoogieIcfgContainer [2021-10-28 09:41:25,861 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:41:25,862 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:41:25,862 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:41:25,863 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:41:25,868 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:37:04" (3/4) ... [2021-10-28 09:41:25,872 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:41:25,872 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:41:25,876 INFO L168 Benchmark]: Toolchain (without parser) took 264027.64 ms. Allocated memory was 77.6 MB in the beginning and 186.6 MB in the end (delta: 109.1 MB). Free memory was 54.2 MB in the beginning and 108.1 MB in the end (delta: -53.9 MB). Peak memory consumption was 53.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:25,876 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 54.5 MB. Free memory was 35.0 MB in the beginning and 35.0 MB in the end (delta: 38.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:41:25,877 INFO L168 Benchmark]: CACSL2BoogieTranslator took 816.85 ms. Allocated memory is still 77.6 MB. Free memory was 54.0 MB in the beginning and 47.8 MB in the end (delta: 6.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:25,877 INFO L168 Benchmark]: Boogie Preprocessor took 108.15 ms. Allocated memory is still 77.6 MB. Free memory was 47.8 MB in the beginning and 44.2 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:25,878 INFO L168 Benchmark]: RCFGBuilder took 1297.65 ms. Allocated memory is still 77.6 MB. Free memory was 44.2 MB in the beginning and 36.8 MB in the end (delta: 7.4 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:25,882 INFO L168 Benchmark]: TraceAbstraction took 261782.67 ms. Allocated memory was 77.6 MB in the beginning and 186.6 MB in the end (delta: 109.1 MB). Free memory was 36.1 MB in the beginning and 108.8 MB in the end (delta: -72.7 MB). Peak memory consumption was 36.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:41:25,883 INFO L168 Benchmark]: Witness Printer took 10.28 ms. Allocated memory is still 186.6 MB. Free memory was 108.8 MB in the beginning and 108.1 MB in the end (delta: 629.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:41:25,886 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 54.5 MB. Free memory was 35.0 MB in the beginning and 35.0 MB in the end (delta: 38.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 816.85 ms. Allocated memory is still 77.6 MB. Free memory was 54.0 MB in the beginning and 47.8 MB in the end (delta: 6.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 108.15 ms. Allocated memory is still 77.6 MB. Free memory was 47.8 MB in the beginning and 44.2 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1297.65 ms. Allocated memory is still 77.6 MB. Free memory was 44.2 MB in the beginning and 36.8 MB in the end (delta: 7.4 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 261782.67 ms. Allocated memory was 77.6 MB in the beginning and 186.6 MB in the end (delta: 109.1 MB). Free memory was 36.1 MB in the beginning and 108.8 MB in the end (delta: -72.7 MB). Peak memory consumption was 36.8 MB. Max. memory is 16.1 GB. * Witness Printer took 10.28 ms. Allocated memory is still 186.6 MB. Free memory was 108.8 MB in the beginning and 108.1 MB in the end (delta: 629.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 535]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L564] struct list_head gl_list = { &(gl_list), &(gl_list) }; [L620] CALL gl_read() [L576] CALL gl_insert(__VERIFIER_nondet_int()) [L567] struct node *node = malloc(sizeof *node); [L568] COND FALSE !(!node) [L570] node->value = value [L571] CALL list_add(&node->linkage, &gl_list) [L547] EXPR head->next [L547] CALL __list_add(new, head, head->next) [L535] next->prev = new [L536] new->next = next [L537] new->prev = prev [L538] prev->next = new [L547] RET __list_add(new, head, head->next) [L571] RET list_add(&node->linkage, &gl_list) [L576] RET gl_insert(__VERIFIER_nondet_int()) [L578] COND TRUE __VERIFIER_nondet_int() [L576] CALL gl_insert(__VERIFIER_nondet_int()) [L567] struct node *node = malloc(sizeof *node); [L568] COND FALSE !(!node) [L570] node->value = value [L571] CALL list_add(&node->linkage, &gl_list) [L547] EXPR head->next [L547] CALL __list_add(new, head, head->next) [L535] next->prev = new - UnprovableResult [Line: 529]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 529]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 542]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 542]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 543]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 543]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 570]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 570]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 583]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 583]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 584]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 584]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 584]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 584]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 585]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 585]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 585]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 535]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 536]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 536]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 537]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 537]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 618]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 551]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 551]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 551]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 551]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 552]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 552]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 553]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 553]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 557]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 557]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 557]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 557]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 590]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 590]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 596]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 596]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 598]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 598]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 598]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 598]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 22 procedures, 181 locations, 48 error locations. Started 1 CEGAR loops. OverallTime: 261.6s, OverallIterations: 14, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 74.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1744 SDtfs, 1642 SDslu, 6005 SDs, 0 SdLazy, 4189 SolverSat, 314 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 32.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 492 GetRequests, 319 SyntacticMatches, 30 SemanticMatches, 143 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 165.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=196occurred in iteration=6, InterpolantAutomatonStates: 97, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 83 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 153.1s InterpolantComputationTime, 266 NumberOfCodeBlocks, 266 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 467 ConstructedInterpolants, 68 QuantifiedInterpolants, 5807 SizeOfPredicates, 138 NumberOfNonLiveVariables, 2018 ConjunctsInSsa, 198 ConjunctsInUnsatCore, 27 InterpolantComputations, 26 PerfectInterpolantSequences, 6/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 09:41:25,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e420348-4019-47d8-a778-cb80bd997692/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...