./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0234-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0234-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU --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 2e40f9e7b474ba5b84186650c7060a1f3eed5394bab52ac2eaa493135efa417c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 23:12:30,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 23:12:30,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 23:12:30,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 23:12:30,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 23:12:30,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 23:12:30,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 23:12:30,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 23:12:30,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 23:12:30,440 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 23:12:30,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 23:12:30,444 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 23:12:30,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 23:12:30,446 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 23:12:30,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 23:12:30,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 23:12:30,452 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 23:12:30,454 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 23:12:30,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 23:12:30,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 23:12:30,463 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 23:12:30,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 23:12:30,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 23:12:30,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 23:12:30,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 23:12:30,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 23:12:30,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 23:12:30,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 23:12:30,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 23:12:30,479 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 23:12:30,479 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 23:12:30,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 23:12:30,482 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 23:12:30,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 23:12:30,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 23:12:30,487 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 23:12:30,488 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 23:12:30,489 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 23:12:30,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 23:12:30,495 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 23:12:30,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 23:12:30,499 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-02 23:12:30,551 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 23:12:30,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 23:12:30,553 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 23:12:30,561 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 23:12:30,564 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 23:12:30,565 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 23:12:30,565 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 23:12:30,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 23:12:30,566 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 23:12:30,566 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 23:12:30,567 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 23:12:30,568 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 23:12:30,568 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 23:12:30,569 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-02 23:12:30,569 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-02 23:12:30,569 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-02 23:12:30,569 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 23:12:30,570 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-02 23:12:30,570 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 23:12:30,570 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 23:12:30,571 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 23:12:30,571 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 23:12:30,571 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 23:12:30,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:12:30,572 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 23:12:30,572 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 23:12:30,572 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 23:12:30,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 23:12:30,573 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 23:12:30,575 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_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e40f9e7b474ba5b84186650c7060a1f3eed5394bab52ac2eaa493135efa417c [2021-11-02 23:12:30,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 23:12:30,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 23:12:30,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 23:12:30,988 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 23:12:30,989 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 23:12:30,991 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/memsafety/test-0234-1.i [2021-11-02 23:12:31,106 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/data/852ef7c37/92068b422e934945a2aec691fef6ff21/FLAG4518140e9 [2021-11-02 23:12:31,793 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 23:12:31,794 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/sv-benchmarks/c/memsafety/test-0234-1.i [2021-11-02 23:12:31,815 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/data/852ef7c37/92068b422e934945a2aec691fef6ff21/FLAG4518140e9 [2021-11-02 23:12:32,005 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/data/852ef7c37/92068b422e934945a2aec691fef6ff21 [2021-11-02 23:12:32,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 23:12:32,023 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-02 23:12:32,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 23:12:32,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 23:12:32,038 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 23:12:32,039 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:12:32" (1/1) ... [2021-11-02 23:12:32,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@310aba6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:12:32, skipping insertion in model container [2021-11-02 23:12:32,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:12:32" (1/1) ... [2021-11-02 23:12:32,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 23:12:32,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 23:12:32,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:12:32,570 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 23:12:32,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:12:32,717 INFO L208 MainTranslator]: Completed translation [2021-11-02 23:12:32,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:12:32 WrapperNode [2021-11-02 23:12:32,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 23:12:32,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 23:12:32,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 23:12:32,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 23:12:32,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:12:32" (1/1) ... [2021-11-02 23:12:32,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:12:32" (1/1) ... [2021-11-02 23:12:32,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:12:32" (1/1) ... [2021-11-02 23:12:32,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:12:32" (1/1) ... [2021-11-02 23:12:32,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:12:32" (1/1) ... [2021-11-02 23:12:32,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:12:32" (1/1) ... [2021-11-02 23:12:32,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:12:32" (1/1) ... [2021-11-02 23:12:32,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 23:12:32,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 23:12:32,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 23:12:32,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 23:12:32,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:12:32" (1/1) ... [2021-11-02 23:12:32,900 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:12:32,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:12:32,929 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 23:12:32,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 23:12:32,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-11-02 23:12:32,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 23:12:32,995 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-11-02 23:12:32,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-11-02 23:12:32,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-11-02 23:12:32,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-11-02 23:12:32,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-11-02 23:12:32,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-11-02 23:12:32,997 INFO L138 BoogieDeclarations]: Found implementation of procedure calloc_model [2021-11-02 23:12:32,997 INFO L138 BoogieDeclarations]: Found implementation of procedure zalloc_or_die [2021-11-02 23:12:32,997 INFO L138 BoogieDeclarations]: Found implementation of procedure l4_insert [2021-11-02 23:12:32,997 INFO L138 BoogieDeclarations]: Found implementation of procedure l3_insert [2021-11-02 23:12:32,997 INFO L138 BoogieDeclarations]: Found implementation of procedure l2_insert [2021-11-02 23:12:32,998 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_insert [2021-11-02 23:12:32,998 INFO L138 BoogieDeclarations]: Found implementation of procedure l0_insert [2021-11-02 23:12:32,998 INFO L138 BoogieDeclarations]: Found implementation of procedure l4_destroy [2021-11-02 23:12:32,998 INFO L138 BoogieDeclarations]: Found implementation of procedure l3_destroy [2021-11-02 23:12:32,999 INFO L138 BoogieDeclarations]: Found implementation of procedure l2_destroy [2021-11-02 23:12:32,999 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_destroy [2021-11-02 23:12:32,999 INFO L138 BoogieDeclarations]: Found implementation of procedure l0_destroy [2021-11-02 23:12:32,999 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-11-02 23:12:32,999 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-02 23:12:33,000 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-11-02 23:12:33,000 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-11-02 23:12:33,000 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-11-02 23:12:33,000 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-11-02 23:12:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-11-02 23:12:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 23:12:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-11-02 23:12:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-11-02 23:12:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-11-02 23:12:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-11-02 23:12:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-11-02 23:12:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-11-02 23:12:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-11-02 23:12:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-11-02 23:12:33,003 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-11-02 23:12:33,003 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-11-02 23:12:33,003 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-11-02 23:12:33,003 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-11-02 23:12:33,003 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-11-02 23:12:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-11-02 23:12:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-11-02 23:12:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-11-02 23:12:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-11-02 23:12:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-11-02 23:12:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-11-02 23:12:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-11-02 23:12:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-11-02 23:12:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-11-02 23:12:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-11-02 23:12:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-11-02 23:12:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-11-02 23:12:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-11-02 23:12:33,007 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-11-02 23:12:33,007 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-11-02 23:12:33,007 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-11-02 23:12:33,007 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-11-02 23:12:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-11-02 23:12:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-11-02 23:12:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-11-02 23:12:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-11-02 23:12:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-11-02 23:12:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-11-02 23:12:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-11-02 23:12:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-11-02 23:12:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-11-02 23:12:33,010 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-11-02 23:12:33,010 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-11-02 23:12:33,010 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-11-02 23:12:33,010 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-11-02 23:12:33,011 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-11-02 23:12:33,011 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-11-02 23:12:33,011 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-11-02 23:12:33,011 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-11-02 23:12:33,012 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-11-02 23:12:33,012 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-11-02 23:12:33,012 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-11-02 23:12:33,012 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-11-02 23:12:33,012 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-11-02 23:12:33,013 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-11-02 23:12:33,013 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-11-02 23:12:33,013 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-11-02 23:12:33,013 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-11-02 23:12:33,014 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-11-02 23:12:33,014 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-11-02 23:12:33,014 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-11-02 23:12:33,014 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-11-02 23:12:33,014 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-11-02 23:12:33,015 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-11-02 23:12:33,015 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-11-02 23:12:33,015 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-11-02 23:12:33,015 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-11-02 23:12:33,016 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-11-02 23:12:33,016 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-11-02 23:12:33,016 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-11-02 23:12:33,016 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-11-02 23:12:33,016 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-11-02 23:12:33,017 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-11-02 23:12:33,017 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-11-02 23:12:33,017 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-11-02 23:12:33,017 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-11-02 23:12:33,018 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-11-02 23:12:33,018 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-11-02 23:12:33,018 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-11-02 23:12:33,018 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-11-02 23:12:33,018 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-11-02 23:12:33,019 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-11-02 23:12:33,019 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-11-02 23:12:33,019 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-11-02 23:12:33,019 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-11-02 23:12:33,020 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-11-02 23:12:33,020 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-11-02 23:12:33,020 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-11-02 23:12:33,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-11-02 23:12:33,021 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-11-02 23:12:33,021 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-11-02 23:12:33,021 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-11-02 23:12:33,021 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-11-02 23:12:33,021 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-11-02 23:12:33,022 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-11-02 23:12:33,022 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-11-02 23:12:33,022 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-11-02 23:12:33,022 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-11-02 23:12:33,023 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-11-02 23:12:33,023 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-11-02 23:12:33,023 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-11-02 23:12:33,023 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-11-02 23:12:33,023 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-11-02 23:12:33,024 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-11-02 23:12:33,024 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-11-02 23:12:33,024 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-11-02 23:12:33,024 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-11-02 23:12:33,025 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-11-02 23:12:33,025 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-11-02 23:12:33,025 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2021-11-02 23:12:33,025 INFO L130 BoogieDeclarations]: Found specification of procedure memccpy [2021-11-02 23:12:33,026 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-11-02 23:12:33,026 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-02 23:12:33,026 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2021-11-02 23:12:33,026 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2021-11-02 23:12:33,027 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-02 23:12:33,027 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-11-02 23:12:33,027 INFO L130 BoogieDeclarations]: Found specification of procedure strncat [2021-11-02 23:12:33,027 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2021-11-02 23:12:33,027 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-02 23:12:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll [2021-11-02 23:12:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm [2021-11-02 23:12:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll_l [2021-11-02 23:12:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm_l [2021-11-02 23:12:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure strdup [2021-11-02 23:12:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure strndup [2021-11-02 23:12:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2021-11-02 23:12:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2021-11-02 23:12:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2021-11-02 23:12:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure strspn [2021-11-02 23:12:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure strpbrk [2021-11-02 23:12:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-11-02 23:12:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure strtok [2021-11-02 23:12:33,031 INFO L130 BoogieDeclarations]: Found specification of procedure __strtok_r [2021-11-02 23:12:33,031 INFO L130 BoogieDeclarations]: Found specification of procedure strtok_r [2021-11-02 23:12:33,031 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2021-11-02 23:12:33,031 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2021-11-02 23:12:33,031 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2021-11-02 23:12:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_r [2021-11-02 23:12:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_l [2021-11-02 23:12:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure bcmp [2021-11-02 23:12:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure bcopy [2021-11-02 23:12:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure bzero [2021-11-02 23:12:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure index [2021-11-02 23:12:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure rindex [2021-11-02 23:12:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2021-11-02 23:12:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure ffsl [2021-11-02 23:12:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure ffsll [2021-11-02 23:12:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2021-11-02 23:12:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp [2021-11-02 23:12:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp_l [2021-11-02 23:12:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp_l [2021-11-02 23:12:33,035 INFO L130 BoogieDeclarations]: Found specification of procedure explicit_bzero [2021-11-02 23:12:33,035 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2021-11-02 23:12:33,035 INFO L130 BoogieDeclarations]: Found specification of procedure strsignal [2021-11-02 23:12:33,035 INFO L130 BoogieDeclarations]: Found specification of procedure __stpcpy [2021-11-02 23:12:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure stpcpy [2021-11-02 23:12:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure __stpncpy [2021-11-02 23:12:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure stpncpy [2021-11-02 23:12:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure calloc_model [2021-11-02 23:12:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 23:12:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-02 23:12:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-11-02 23:12:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure zalloc_or_die [2021-11-02 23:12:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure l4_insert [2021-11-02 23:12:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 23:12:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 23:12:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure l3_insert [2021-11-02 23:12:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure l2_insert [2021-11-02 23:12:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure l1_insert [2021-11-02 23:12:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure l0_insert [2021-11-02 23:12:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure l4_destroy [2021-11-02 23:12:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 23:12:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure l3_destroy [2021-11-02 23:12:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure l2_destroy [2021-11-02 23:12:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure l1_destroy [2021-11-02 23:12:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure l0_destroy [2021-11-02 23:12:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-11-02 23:12:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-11-02 23:12:33,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 23:12:33,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 23:12:33,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 23:12:33,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 23:12:33,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 23:12:33,836 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-02 23:12:34,209 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 23:12:34,209 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-11-02 23:12:34,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:12:34 BoogieIcfgContainer [2021-11-02 23:12:34,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 23:12:34,219 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 23:12:34,219 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 23:12:34,224 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 23:12:34,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:12:32" (1/3) ... [2021-11-02 23:12:34,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@209b1118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:12:34, skipping insertion in model container [2021-11-02 23:12:34,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:12:32" (2/3) ... [2021-11-02 23:12:34,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@209b1118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:12:34, skipping insertion in model container [2021-11-02 23:12:34,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:12:34" (3/3) ... [2021-11-02 23:12:34,228 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0234-1.i [2021-11-02 23:12:34,236 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 23:12:34,242 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 75 error locations. [2021-11-02 23:12:34,305 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 23:12:34,322 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 [2021-11-02 23:12:34,323 INFO L340 AbstractCegarLoop]: Starting to check reachability of 75 error locations. [2021-11-02 23:12:34,350 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 122 states have (on average 1.7459016393442623) internal successors, (213), 192 states have internal predecessors, (213), 20 states have call successors, (20), 15 states have call predecessors, (20), 15 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-02 23:12:34,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-02 23:12:34,359 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:12:34,360 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:12:34,360 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 71 more)] === [2021-11-02 23:12:34,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:12:34,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1439172705, now seen corresponding path program 1 times [2021-11-02 23:12:34,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:12:34,379 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442935877] [2021-11-02 23:12:34,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:12:34,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:12:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:12:34,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-02 23:12:34,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:12:34,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:12:34,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:12:34,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442935877] [2021-11-02 23:12:34,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442935877] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:12:34,725 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:12:34,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:12:34,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326703687] [2021-11-02 23:12:34,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:12:34,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:12:34,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:12:34,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:12:34,756 INFO L87 Difference]: Start difference. First operand has 227 states, 122 states have (on average 1.7459016393442623) internal successors, (213), 192 states have internal predecessors, (213), 20 states have call successors, (20), 15 states have call predecessors, (20), 15 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 23:12:35,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:12:35,491 INFO L93 Difference]: Finished difference Result 253 states and 273 transitions. [2021-11-02 23:12:35,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:12:35,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2021-11-02 23:12:35,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:12:35,514 INFO L225 Difference]: With dead ends: 253 [2021-11-02 23:12:35,514 INFO L226 Difference]: Without dead ends: 250 [2021-11-02 23:12:35,516 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:12:35,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-11-02 23:12:35,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 224. [2021-11-02 23:12:35,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 116 states have (on average 1.7241379310344827) internal successors, (200), 190 states have internal predecessors, (200), 20 states have call successors, (20), 15 states have call predecessors, (20), 14 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-02 23:12:35,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 239 transitions. [2021-11-02 23:12:35,587 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 239 transitions. Word has length 7 [2021-11-02 23:12:35,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:12:35,587 INFO L470 AbstractCegarLoop]: Abstraction has 224 states and 239 transitions. [2021-11-02 23:12:35,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 23:12:35,588 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 239 transitions. [2021-11-02 23:12:35,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-02 23:12:35,589 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:12:35,589 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:12:35,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 23:12:35,590 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting calloc_modelErr0REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 71 more)] === [2021-11-02 23:12:35,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:12:35,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1247502059, now seen corresponding path program 1 times [2021-11-02 23:12:35,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:12:35,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036596289] [2021-11-02 23:12:35,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:12:35,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:12:35,629 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 23:12:35,630 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [332732757] [2021-11-02 23:12:35,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:12:35,630 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:12:35,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:12:35,633 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:12:35,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-02 23:12:35,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:12:35,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 23:12:35,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:12:35,970 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 [2021-11-02 23:12:35,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:12:35,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:12:35,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036596289] [2021-11-02 23:12:35,982 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 23:12:35,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332732757] [2021-11-02 23:12:35,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [332732757] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:12:35,983 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:12:35,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 23:12:35,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022387198] [2021-11-02 23:12:35,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:12:35,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:12:35,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:12:35,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:12:35,987 INFO L87 Difference]: Start difference. First operand 224 states and 239 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 23:12:36,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:12:36,187 INFO L93 Difference]: Finished difference Result 223 states and 238 transitions. [2021-11-02 23:12:36,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:12:36,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-11-02 23:12:36,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:12:36,197 INFO L225 Difference]: With dead ends: 223 [2021-11-02 23:12:36,198 INFO L226 Difference]: Without dead ends: 223 [2021-11-02 23:12:36,200 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:12:36,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2021-11-02 23:12:36,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2021-11-02 23:12:36,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 116 states have (on average 1.7155172413793103) internal successors, (199), 189 states have internal predecessors, (199), 20 states have call successors, (20), 15 states have call predecessors, (20), 14 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-02 23:12:36,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 238 transitions. [2021-11-02 23:12:36,250 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 238 transitions. Word has length 12 [2021-11-02 23:12:36,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:12:36,251 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 238 transitions. [2021-11-02 23:12:36,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 23:12:36,252 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 238 transitions. [2021-11-02 23:12:36,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-02 23:12:36,253 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:12:36,253 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:12:36,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-02 23:12:36,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:12:36,467 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting calloc_modelErr1REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 71 more)] === [2021-11-02 23:12:36,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:12:36,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1247502060, now seen corresponding path program 1 times [2021-11-02 23:12:36,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:12:36,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98199894] [2021-11-02 23:12:36,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:12:36,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:12:36,497 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 23:12:36,498 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1936551497] [2021-11-02 23:12:36,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:12:36,498 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:12:36,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:12:36,500 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:12:36,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-02 23:12:36,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:12:36,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-02 23:12:36,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:12:36,786 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 8 treesize of output 7 [2021-11-02 23:12:36,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:12:36,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:12:36,814 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98199894] [2021-11-02 23:12:36,814 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 23:12:36,815 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936551497] [2021-11-02 23:12:36,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936551497] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:12:36,815 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:12:36,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 23:12:36,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979707857] [2021-11-02 23:12:36,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:12:36,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:12:36,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:12:36,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:12:36,818 INFO L87 Difference]: Start difference. First operand 223 states and 238 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 23:12:36,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:12:36,936 INFO L93 Difference]: Finished difference Result 222 states and 237 transitions. [2021-11-02 23:12:36,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:12:36,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-11-02 23:12:36,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:12:36,939 INFO L225 Difference]: With dead ends: 222 [2021-11-02 23:12:36,940 INFO L226 Difference]: Without dead ends: 222 [2021-11-02 23:12:36,940 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:12:36,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-11-02 23:12:36,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2021-11-02 23:12:36,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 115 states have (on average 1.7217391304347827) internal successors, (198), 188 states have internal predecessors, (198), 20 states have call successors, (20), 15 states have call predecessors, (20), 14 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-02 23:12:36,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 237 transitions. [2021-11-02 23:12:36,956 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 237 transitions. Word has length 12 [2021-11-02 23:12:36,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:12:36,957 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 237 transitions. [2021-11-02 23:12:36,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 23:12:36,958 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 237 transitions. [2021-11-02 23:12:36,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-02 23:12:36,964 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:12:36,965 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2021-11-02 23:12:37,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-02 23:12:37,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:12:37,180 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting l4_insertErr0REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 71 more)] === [2021-11-02 23:12:37,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:12:37,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1165065815, now seen corresponding path program 1 times [2021-11-02 23:12:37,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:12:37,181 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896371695] [2021-11-02 23:12:37,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:12:37,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:12:37,247 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 23:12:37,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2102452582] [2021-11-02 23:12:37,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:12:37,248 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:12:37,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:12:37,252 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:12:37,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-02 23:12:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:12:37,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 748 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-02 23:12:37,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:12:38,133 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 [2021-11-02 23:12:38,343 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-02 23:12:38,344 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 12 treesize of output 14 [2021-11-02 23:12:38,368 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 113 proven. 7 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-02 23:12:38,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:12:38,369 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896371695] [2021-11-02 23:12:38,369 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 23:12:38,369 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102452582] [2021-11-02 23:12:38,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2102452582] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:12:38,370 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-11-02 23:12:38,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-11-02 23:12:38,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629549525] [2021-11-02 23:12:38,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-02 23:12:38,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:12:38,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-02 23:12:38,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-11-02 23:12:38,374 INFO L87 Difference]: Start difference. First operand 222 states and 237 transitions. Second operand has 14 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 10 states have internal predecessors, (41), 4 states have call successors, (17), 3 states have call predecessors, (17), 5 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-02 23:12:39,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:12:39,613 INFO L93 Difference]: Finished difference Result 250 states and 274 transitions. [2021-11-02 23:12:39,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:12:39,614 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 10 states have internal predecessors, (41), 4 states have call successors, (17), 3 states have call predecessors, (17), 5 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) Word has length 123 [2021-11-02 23:12:39,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:12:39,618 INFO L225 Difference]: With dead ends: 250 [2021-11-02 23:12:39,618 INFO L226 Difference]: Without dead ends: 250 [2021-11-02 23:12:39,619 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 110 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:12:39,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-11-02 23:12:39,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 220. [2021-11-02 23:12:39,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 115 states have (on average 1.7043478260869565) internal successors, (196), 186 states have internal predecessors, (196), 20 states have call successors, (20), 15 states have call predecessors, (20), 14 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-02 23:12:39,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 235 transitions. [2021-11-02 23:12:39,635 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 235 transitions. Word has length 123 [2021-11-02 23:12:39,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:12:39,636 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 235 transitions. [2021-11-02 23:12:39,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 10 states have internal predecessors, (41), 4 states have call successors, (17), 3 states have call predecessors, (17), 5 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-02 23:12:39,637 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 235 transitions. [2021-11-02 23:12:39,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-02 23:12:39,643 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:12:39,643 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2021-11-02 23:12:39,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-02 23:12:39,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:12:39,858 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting l4_insertErr1REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 71 more)] === [2021-11-02 23:12:39,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:12:39,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1165065816, now seen corresponding path program 1 times [2021-11-02 23:12:39,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:12:39,859 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717506526] [2021-11-02 23:12:39,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:12:39,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:12:39,890 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 23:12:39,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [214629789] [2021-11-02 23:12:39,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:12:39,891 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:12:39,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:12:39,892 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:12:39,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-02 23:12:40,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:12:40,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 748 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-02 23:12:40,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:12:41,320 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-02 23:12:41,320 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:12:41,321 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717506526] [2021-11-02 23:12:41,321 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 23:12:41,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214629789] [2021-11-02 23:12:41,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214629789] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:12:41,324 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:12:41,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-02 23:12:41,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056430823] [2021-11-02 23:12:41,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-02 23:12:41,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:12:41,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-02 23:12:41,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-02 23:12:41,328 INFO L87 Difference]: Start difference. First operand 220 states and 235 transitions. Second operand has 8 states, 6 states have (on average 7.5) internal successors, (45), 8 states have internal predecessors, (45), 4 states have call successors, (19), 2 states have call predecessors, (19), 5 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-02 23:12:41,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:12:41,526 INFO L93 Difference]: Finished difference Result 230 states and 245 transitions. [2021-11-02 23:12:41,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-02 23:12:41,527 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 8 states have internal predecessors, (45), 4 states have call successors, (19), 2 states have call predecessors, (19), 5 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 123 [2021-11-02 23:12:41,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:12:41,529 INFO L225 Difference]: With dead ends: 230 [2021-11-02 23:12:41,530 INFO L226 Difference]: Without dead ends: 221 [2021-11-02 23:12:41,530 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:12:41,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2021-11-02 23:12:41,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2021-11-02 23:12:41,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 116 states have (on average 1.6982758620689655) internal successors, (197), 187 states have internal predecessors, (197), 20 states have call successors, (20), 15 states have call predecessors, (20), 14 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-02 23:12:41,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 236 transitions. [2021-11-02 23:12:41,544 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 236 transitions. Word has length 123 [2021-11-02 23:12:41,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:12:41,546 INFO L470 AbstractCegarLoop]: Abstraction has 221 states and 236 transitions. [2021-11-02 23:12:41,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 8 states have internal predecessors, (45), 4 states have call successors, (19), 2 states have call predecessors, (19), 5 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-02 23:12:41,546 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 236 transitions. [2021-11-02 23:12:41,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-02 23:12:41,560 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:12:41,560 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2021-11-02 23:12:41,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-02 23:12:41,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:12:41,761 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting l4_insertErr1REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 71 more)] === [2021-11-02 23:12:41,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:12:41,761 INFO L85 PathProgramCache]: Analyzing trace with hash 910813176, now seen corresponding path program 1 times [2021-11-02 23:12:41,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:12:41,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736761114] [2021-11-02 23:12:41,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:12:41,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:12:41,808 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 23:12:41,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1000391627] [2021-11-02 23:12:41,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:12:41,809 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:12:41,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:12:41,810 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:12:41,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-02 23:12:42,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:12:42,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-02 23:12:42,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:12:42,570 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 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-02 23:12:42,866 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 8 treesize of output 7 [2021-11-02 23:12:43,086 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 21 treesize of output 17 [2021-11-02 23:12:43,305 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 72 proven. 46 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2021-11-02 23:12:43,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:12:43,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736761114] [2021-11-02 23:12:43,306 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 23:12:43,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000391627] [2021-11-02 23:12:43,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000391627] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:12:43,313 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-11-02 23:12:43,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-11-02 23:12:43,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443175238] [2021-11-02 23:12:43,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-02 23:12:43,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:12:43,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-02 23:12:43,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-11-02 23:12:43,322 INFO L87 Difference]: Start difference. First operand 221 states and 236 transitions. Second operand has 13 states, 10 states have (on average 4.3) internal successors, (43), 12 states have internal predecessors, (43), 4 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-02 23:12:44,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:12:44,284 INFO L93 Difference]: Finished difference Result 246 states and 261 transitions. [2021-11-02 23:12:44,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-02 23:12:44,285 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 4.3) internal successors, (43), 12 states have internal predecessors, (43), 4 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 129 [2021-11-02 23:12:44,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:12:44,287 INFO L225 Difference]: With dead ends: 246 [2021-11-02 23:12:44,287 INFO L226 Difference]: Without dead ends: 237 [2021-11-02 23:12:44,288 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 116 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:12:44,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-11-02 23:12:44,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 222. [2021-11-02 23:12:44,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 117 states have (on average 1.6923076923076923) internal successors, (198), 188 states have internal predecessors, (198), 20 states have call successors, (20), 15 states have call predecessors, (20), 14 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-02 23:12:44,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 237 transitions. [2021-11-02 23:12:44,304 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 237 transitions. Word has length 129 [2021-11-02 23:12:44,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:12:44,305 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 237 transitions. [2021-11-02 23:12:44,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 4.3) internal successors, (43), 12 states have internal predecessors, (43), 4 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-02 23:12:44,305 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 237 transitions. [2021-11-02 23:12:44,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-02 23:12:44,310 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:12:44,310 INFO L513 BasicCegarLoop]: trace histogram [12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2021-11-02 23:12:44,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-02 23:12:44,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-02 23:12:44,538 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting l4_insertErr1REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 71 more)] === [2021-11-02 23:12:44,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:12:44,539 INFO L85 PathProgramCache]: Analyzing trace with hash 991278936, now seen corresponding path program 2 times [2021-11-02 23:12:44,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:12:44,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092898703] [2021-11-02 23:12:44,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:12:44,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:12:44,564 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 23:12:44,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [474610929] [2021-11-02 23:12:44,565 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 23:12:44,565 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:12:44,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:12:44,566 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:12:44,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-02 23:12:45,326 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 23:12:45,327 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:12:45,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 820 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-02 23:12:45,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:12:45,672 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 8 treesize of output 7 [2021-11-02 23:12:45,901 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 21 treesize of output 17 [2021-11-02 23:12:46,114 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 105 proven. 3 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2021-11-02 23:12:46,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:12:46,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092898703] [2021-11-02 23:12:46,114 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 23:12:46,115 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474610929] [2021-11-02 23:12:46,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474610929] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:12:46,115 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-11-02 23:12:46,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-11-02 23:12:46,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909153749] [2021-11-02 23:12:46,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 23:12:46,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:12:46,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:12:46,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:12:46,119 INFO L87 Difference]: Start difference. First operand 222 states and 237 transitions. Second operand has 11 states, 9 states have (on average 4.222222222222222) internal successors, (38), 11 states have internal predecessors, (38), 3 states have call successors, (17), 1 states have call predecessors, (17), 4 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-02 23:12:46,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:12:46,690 INFO L93 Difference]: Finished difference Result 232 states and 247 transitions. [2021-11-02 23:12:46,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-02 23:12:46,691 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.222222222222222) internal successors, (38), 11 states have internal predecessors, (38), 3 states have call successors, (17), 1 states have call predecessors, (17), 4 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 135 [2021-11-02 23:12:46,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:12:46,693 INFO L225 Difference]: With dead ends: 232 [2021-11-02 23:12:46,693 INFO L226 Difference]: Without dead ends: 223 [2021-11-02 23:12:46,694 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 124 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-11-02 23:12:46,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2021-11-02 23:12:46,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2021-11-02 23:12:46,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 118 states have (on average 1.6864406779661016) internal successors, (199), 189 states have internal predecessors, (199), 20 states have call successors, (20), 15 states have call predecessors, (20), 14 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-02 23:12:46,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 238 transitions. [2021-11-02 23:12:46,711 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 238 transitions. Word has length 135 [2021-11-02 23:12:46,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:12:46,711 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 238 transitions. [2021-11-02 23:12:46,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.222222222222222) internal successors, (38), 11 states have internal predecessors, (38), 3 states have call successors, (17), 1 states have call predecessors, (17), 4 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-02 23:12:46,712 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 238 transitions. [2021-11-02 23:12:46,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-02 23:12:46,716 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:12:46,716 INFO L513 BasicCegarLoop]: trace histogram [18, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2021-11-02 23:12:46,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-02 23:12:46,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-02 23:12:46,930 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting l4_insertErr1REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 71 more)] === [2021-11-02 23:12:46,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:12:46,931 INFO L85 PathProgramCache]: Analyzing trace with hash -203650568, now seen corresponding path program 3 times [2021-11-02 23:12:46,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:12:46,931 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438308154] [2021-11-02 23:12:46,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:12:46,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:12:46,987 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 23:12:46,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [576399869] [2021-11-02 23:12:46,987 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 23:12:46,988 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:12:46,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:12:46,994 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:12:47,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-02 23:12:47,544 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-02 23:12:47,544 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:12:47,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 59 conjunts are in the unsatisfiable core [2021-11-02 23:12:47,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:12:47,856 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 8 treesize of output 7 [2021-11-02 23:12:48,914 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 14 treesize of output 13 [2021-11-02 23:12:48,919 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 13 treesize of output 11 [2021-11-02 23:12:49,144 INFO L354 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2021-11-02 23:12:49,144 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 24 treesize of output 26 [2021-11-02 23:12:49,160 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-02 23:12:49,161 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 23 treesize of output 23 [2021-11-02 23:12:49,249 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 158 proven. 31 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-02 23:12:49,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:12:49,250 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438308154] [2021-11-02 23:12:49,250 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 23:12:49,250 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576399869] [2021-11-02 23:12:49,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576399869] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:12:49,250 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-11-02 23:12:49,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2021-11-02 23:12:49,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304008074] [2021-11-02 23:12:49,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-02 23:12:49,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:12:49,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-02 23:12:49,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2021-11-02 23:12:49,253 INFO L87 Difference]: Start difference. First operand 223 states and 238 transitions. Second operand has 17 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 6 states have call successors, (19), 2 states have call predecessors, (19), 5 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2021-11-02 23:13:01,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:13:01,242 INFO L93 Difference]: Finished difference Result 251 states and 275 transitions. [2021-11-02 23:13:01,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-02 23:13:01,243 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 6 states have call successors, (19), 2 states have call predecessors, (19), 5 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 141 [2021-11-02 23:13:01,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:13:01,247 INFO L225 Difference]: With dead ends: 251 [2021-11-02 23:13:01,247 INFO L226 Difference]: Without dead ends: 251 [2021-11-02 23:13:01,248 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 123 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=100, Invalid=712, Unknown=0, NotChecked=0, Total=812 [2021-11-02 23:13:01,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-11-02 23:13:01,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 221. [2021-11-02 23:13:01,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 118 states have (on average 1.6694915254237288) internal successors, (197), 187 states have internal predecessors, (197), 20 states have call successors, (20), 15 states have call predecessors, (20), 14 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-02 23:13:01,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 236 transitions. [2021-11-02 23:13:01,268 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 236 transitions. Word has length 141 [2021-11-02 23:13:01,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:13:01,270 INFO L470 AbstractCegarLoop]: Abstraction has 221 states and 236 transitions. [2021-11-02 23:13:01,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 6 states have call successors, (19), 2 states have call predecessors, (19), 5 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2021-11-02 23:13:01,271 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 236 transitions. [2021-11-02 23:13:01,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-02 23:13:01,273 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:13:01,274 INFO L513 BasicCegarLoop]: trace histogram [18, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:13:01,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-02 23:13:01,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:13:01,502 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting l4_insertErr2REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 71 more)] === [2021-11-02 23:13:01,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:13:01,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1860308408, now seen corresponding path program 1 times [2021-11-02 23:13:01,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:13:01,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732964558] [2021-11-02 23:13:01,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:13:01,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:13:01,537 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 23:13:01,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [390467019] [2021-11-02 23:13:01,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:13:01,539 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:13:01,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:13:01,540 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:13:01,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-02 23:13:02,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:13:02,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 38 conjunts are in the unsatisfiable core [2021-11-02 23:13:02,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:13:02,416 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 8 treesize of output 7 [2021-11-02 23:13:03,100 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 14 treesize of output 13 [2021-11-02 23:13:03,111 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 13 treesize of output 11 [2021-11-02 23:13:03,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:13:03,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732964558] [2021-11-02 23:13:03,309 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 23:13:03,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390467019] [2021-11-02 23:13:03,309 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [calloc_model_~nmemb] [2021-11-02 23:13:03,309 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:13:03,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-02 23:13:03,310 ERROR L172 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2021-11-02 23:13:03,313 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-11-02 23:13:03,321 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr2REQUIRES_VIOLATION [2021-11-02 23:13:03,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr0REQUIRES_VIOLATION [2021-11-02 23:13:03,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr1REQUIRES_VIOLATION [2021-11-02 23:13:03,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr2REQUIRES_VIOLATION [2021-11-02 23:13:03,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr3REQUIRES_VIOLATION [2021-11-02 23:13:03,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr4ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:13:03,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr5ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:13:03,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:13:03,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr0REQUIRES_VIOLATION [2021-11-02 23:13:03,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr1REQUIRES_VIOLATION [2021-11-02 23:13:03,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr2REQUIRES_VIOLATION [2021-11-02 23:13:03,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr3REQUIRES_VIOLATION [2021-11-02 23:13:03,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr4REQUIRES_VIOLATION [2021-11-02 23:13:03,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr5REQUIRES_VIOLATION [2021-11-02 23:13:03,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr0REQUIRES_VIOLATION [2021-11-02 23:13:03,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr1REQUIRES_VIOLATION [2021-11-02 23:13:03,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr2REQUIRES_VIOLATION [2021-11-02 23:13:03,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr3REQUIRES_VIOLATION [2021-11-02 23:13:03,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr4REQUIRES_VIOLATION [2021-11-02 23:13:03,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr5REQUIRES_VIOLATION [2021-11-02 23:13:03,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr0REQUIRES_VIOLATION [2021-11-02 23:13:03,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr1REQUIRES_VIOLATION [2021-11-02 23:13:03,329 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr2ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:13:03,329 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr3ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:13:03,329 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr4ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:13:03,329 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr5REQUIRES_VIOLATION [2021-11-02 23:13:03,329 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr6REQUIRES_VIOLATION [2021-11-02 23:13:03,330 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr7ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:13:03,330 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr8ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:13:03,330 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr9ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:13:03,330 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr0REQUIRES_VIOLATION [2021-11-02 23:13:03,330 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr1REQUIRES_VIOLATION [2021-11-02 23:13:03,331 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr2REQUIRES_VIOLATION [2021-11-02 23:13:03,331 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr3REQUIRES_VIOLATION [2021-11-02 23:13:03,331 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr4REQUIRES_VIOLATION [2021-11-02 23:13:03,331 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr5REQUIRES_VIOLATION [2021-11-02 23:13:03,331 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location calloc_modelErr0REQUIRES_VIOLATION [2021-11-02 23:13:03,332 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location calloc_modelErr1REQUIRES_VIOLATION [2021-11-02 23:13:03,332 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr0REQUIRES_VIOLATION [2021-11-02 23:13:03,333 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr1REQUIRES_VIOLATION [2021-11-02 23:13:03,333 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr2REQUIRES_VIOLATION [2021-11-02 23:13:03,333 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr3REQUIRES_VIOLATION [2021-11-02 23:13:03,333 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr4ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:13:03,333 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr5ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:13:03,334 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:13:03,334 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0REQUIRES_VIOLATION [2021-11-02 23:13:03,334 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1REQUIRES_VIOLATION [2021-11-02 23:13:03,334 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2ENSURES_VIOLATIONMEMORY_LEAK [2021-11-02 23:13:03,334 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr0REQUIRES_VIOLATION [2021-11-02 23:13:03,334 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr1REQUIRES_VIOLATION [2021-11-02 23:13:03,334 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr2REQUIRES_VIOLATION [2021-11-02 23:13:03,335 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr3REQUIRES_VIOLATION [2021-11-02 23:13:03,335 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr4ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:13:03,335 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr5ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:13:03,335 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:13:03,335 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr0REQUIRES_VIOLATION [2021-11-02 23:13:03,335 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr1REQUIRES_VIOLATION [2021-11-02 23:13:03,336 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr2REQUIRES_VIOLATION [2021-11-02 23:13:03,336 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr3REQUIRES_VIOLATION [2021-11-02 23:13:03,336 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr4ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:13:03,336 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr5ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:13:03,337 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:13:03,337 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr0REQUIRES_VIOLATION [2021-11-02 23:13:03,337 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr1REQUIRES_VIOLATION [2021-11-02 23:13:03,337 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr2REQUIRES_VIOLATION [2021-11-02 23:13:03,337 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr3REQUIRES_VIOLATION [2021-11-02 23:13:03,338 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr4REQUIRES_VIOLATION [2021-11-02 23:13:03,338 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr5REQUIRES_VIOLATION [2021-11-02 23:13:03,338 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr0REQUIRES_VIOLATION [2021-11-02 23:13:03,338 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr1REQUIRES_VIOLATION [2021-11-02 23:13:03,338 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr3REQUIRES_VIOLATION [2021-11-02 23:13:03,338 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr4REQUIRES_VIOLATION [2021-11-02 23:13:03,339 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr5REQUIRES_VIOLATION [2021-11-02 23:13:03,339 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr6REQUIRES_VIOLATION [2021-11-02 23:13:03,339 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr7REQUIRES_VIOLATION [2021-11-02 23:13:03,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-11-02 23:13:03,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:13:03,549 INFO L731 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1] [2021-11-02 23:13:03,551 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-02 23:13:03,558 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-11-02 23:13:03,559 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-11-02 23:13:03,559 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-11-02 23:13:03,559 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-11-02 23:13:03,560 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-11-02 23:13:03,560 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-11-02 23:13:03,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 11:13:03 BoogieIcfgContainer [2021-11-02 23:13:03,580 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-02 23:13:03,581 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 23:13:03,581 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 23:13:03,581 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 23:13:03,582 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:12:34" (3/4) ... [2021-11-02 23:13:03,589 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-02 23:13:03,589 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 23:13:03,590 INFO L168 Benchmark]: Toolchain (without parser) took 31566.32 ms. Allocated memory was 96.5 MB in the beginning and 182.5 MB in the end (delta: 86.0 MB). Free memory was 59.3 MB in the beginning and 83.1 MB in the end (delta: -23.8 MB). Peak memory consumption was 61.5 MB. Max. memory is 16.1 GB. [2021-11-02 23:13:03,591 INFO L168 Benchmark]: CDTParser took 0.70 ms. Allocated memory is still 96.5 MB. Free memory was 67.4 MB in the beginning and 67.4 MB in the end (delta: 29.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:13:03,592 INFO L168 Benchmark]: CACSL2BoogieTranslator took 693.40 ms. Allocated memory is still 96.5 MB. Free memory was 59.2 MB in the beginning and 58.6 MB in the end (delta: 536.7 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-02 23:13:03,592 INFO L168 Benchmark]: Boogie Preprocessor took 152.10 ms. Allocated memory is still 96.5 MB. Free memory was 58.6 MB in the beginning and 54.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-02 23:13:03,593 INFO L168 Benchmark]: RCFGBuilder took 1338.94 ms. Allocated memory was 96.5 MB in the beginning and 121.6 MB in the end (delta: 25.2 MB). Free memory was 54.8 MB in the beginning and 75.5 MB in the end (delta: -20.7 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. [2021-11-02 23:13:03,593 INFO L168 Benchmark]: TraceAbstraction took 29360.90 ms. Allocated memory was 121.6 MB in the beginning and 182.5 MB in the end (delta: 60.8 MB). Free memory was 74.7 MB in the beginning and 83.1 MB in the end (delta: -8.4 MB). Peak memory consumption was 52.8 MB. Max. memory is 16.1 GB. [2021-11-02 23:13:03,593 INFO L168 Benchmark]: Witness Printer took 8.25 ms. Allocated memory is still 182.5 MB. Free memory is still 83.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:13:03,595 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70 ms. Allocated memory is still 96.5 MB. Free memory was 67.4 MB in the beginning and 67.4 MB in the end (delta: 29.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 693.40 ms. Allocated memory is still 96.5 MB. Free memory was 59.2 MB in the beginning and 58.6 MB in the end (delta: 536.7 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 152.10 ms. Allocated memory is still 96.5 MB. Free memory was 58.6 MB in the beginning and 54.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1338.94 ms. Allocated memory was 96.5 MB in the beginning and 121.6 MB in the end (delta: 25.2 MB). Free memory was 54.8 MB in the beginning and 75.5 MB in the end (delta: -20.7 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 29360.90 ms. Allocated memory was 121.6 MB in the beginning and 182.5 MB in the end (delta: 60.8 MB). Free memory was 74.7 MB in the beginning and 83.1 MB in the end (delta: -8.4 MB). Peak memory consumption was 52.8 MB. Max. memory is 16.1 GB. * Witness Printer took 8.25 ms. Allocated memory is still 182.5 MB. Free memory is still 83.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * 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: 676]: 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: [L767] static struct L0 *list; [L769] CALL l0_insert(&list) [L708] CALL, EXPR zalloc_or_die(sizeof *item) [L667] CALL, EXPR calloc_model(1U, size) [L641] void *ptr = malloc(nmemb * size); [L642] EXPR, FCALL memset(ptr, 0, nmemb * size) [L642] return memset(ptr, 0, nmemb * size); [L667] RET, EXPR calloc_model(1U, size) [L667] void *ptr = calloc_model(1U, size); [L668] COND TRUE \read(*ptr) [L669] return ptr; [L708] RET, EXPR zalloc_or_die(sizeof *item) [L708] struct L0 *item = zalloc_or_die(sizeof *item); [L710] CALL l1_insert(&item->down) [L699] CALL, EXPR zalloc_or_die(sizeof *item) [L667] CALL, EXPR calloc_model(1U, size) [L641] void *ptr = malloc(nmemb * size); [L642] EXPR, FCALL memset(ptr, 0, nmemb * size) [L642] return memset(ptr, 0, nmemb * size); [L667] RET, EXPR calloc_model(1U, size) [L667] void *ptr = calloc_model(1U, size); [L668] COND TRUE \read(*ptr) [L669] return ptr; [L699] RET, EXPR zalloc_or_die(sizeof *item) [L699] struct L1 *item = zalloc_or_die(sizeof *item); [L701] CALL l2_insert(&item->down) [L690] CALL, EXPR zalloc_or_die(sizeof *item) [L667] CALL, EXPR calloc_model(1U, size) [L641] void *ptr = malloc(nmemb * size); [L642] EXPR, FCALL memset(ptr, 0, nmemb * size) [L642] return memset(ptr, 0, nmemb * size); [L667] RET, EXPR calloc_model(1U, size) [L667] void *ptr = calloc_model(1U, size); [L668] COND TRUE \read(*ptr) [L669] return ptr; [L690] RET, EXPR zalloc_or_die(sizeof *item) [L690] struct L2 *item = zalloc_or_die(sizeof *item); [L692] CALL l3_insert(&item->down) [L681] CALL, EXPR zalloc_or_die(sizeof *item) [L667] CALL, EXPR calloc_model(1U, size) [L641] void *ptr = malloc(nmemb * size); [L642] EXPR, FCALL memset(ptr, 0, nmemb * size) [L642] return memset(ptr, 0, nmemb * size); [L667] RET, EXPR calloc_model(1U, size) [L667] void *ptr = calloc_model(1U, size); [L668] COND TRUE \read(*ptr) [L669] return ptr; [L681] RET, EXPR zalloc_or_die(sizeof *item) [L681] struct L3 *item = zalloc_or_die(sizeof *item); [L683] CALL l4_insert(&item->down) [L674] CALL, EXPR zalloc_or_die(sizeof *item) [L667] CALL, EXPR calloc_model(1U, size) [L641] void *ptr = malloc(nmemb * size); [L642] EXPR, FCALL memset(ptr, 0, nmemb * size) [L642] return memset(ptr, 0, nmemb * size); [L667] RET, EXPR calloc_model(1U, size) [L667] void *ptr = calloc_model(1U, size); [L668] COND TRUE \read(*ptr) [L669] return ptr; [L674] RET, EXPR zalloc_or_die(sizeof *item) [L674] struct L4 *item = zalloc_or_die(sizeof *item); [L675] CALL, EXPR zalloc_or_die(119U) [L667] CALL, EXPR calloc_model(1U, size) [L641] void *ptr = malloc(nmemb * size); [L642] EXPR, FCALL memset(ptr, 0, nmemb * size) [L642] return memset(ptr, 0, nmemb * size); [L667] RET, EXPR calloc_model(1U, size) [L667] void *ptr = calloc_model(1U, size); [L668] COND TRUE \read(*ptr) [L669] return ptr; [L675] RET, EXPR zalloc_or_die(119U) [L675] item->down = zalloc_or_die(119U) [L676] \read(**list) - UnprovableResult [Line: 728]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 728]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 730]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 730]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 730]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 685]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 685]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 685]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 685]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 686]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 686]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 642]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 642]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 748]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 748]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 749]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 749]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 750]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 750]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 750]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 771]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 771]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 765]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 738]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 738]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 739]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 739]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 740]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 740]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 740]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 758]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 758]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 759]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 759]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 760]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 760]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 760]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 675]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 675]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 676]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 676]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 676]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 677]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 677]: 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, 245 locations, 75 error locations. Started 1 CEGAR loops. OverallTime: 29.2s, OverallIterations: 9, TraceHistogramMax: 18, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 16.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1683 SDtfs, 596 SDslu, 6914 SDs, 0 SdLazy, 4619 SolverSat, 222 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 708 GetRequests, 612 SyntacticMatches, 6 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 11.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=227occurred in iteration=0, InterpolantAutomatonStates: 72, 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, 8 MinimizatonAttempts, 101 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 6.6s InterpolantComputationTime, 825 NumberOfCodeBlocks, 752 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 674 ConstructedInterpolants, 30 QuantifiedInterpolants, 1780 SizeOfPredicates, 33 NumberOfNonLiveVariables, 4688 ConjunctsInSsa, 193 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 1563/1650 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 [2021-11-02 23:13:03,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0234-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU --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 2e40f9e7b474ba5b84186650c7060a1f3eed5394bab52ac2eaa493135efa417c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 23:13:06,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 23:13:06,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 23:13:06,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 23:13:06,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 23:13:06,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 23:13:06,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 23:13:06,103 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 23:13:06,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 23:13:06,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 23:13:06,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 23:13:06,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 23:13:06,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 23:13:06,120 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 23:13:06,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 23:13:06,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 23:13:06,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 23:13:06,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 23:13:06,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 23:13:06,142 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 23:13:06,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 23:13:06,146 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 23:13:06,148 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 23:13:06,151 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 23:13:06,157 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 23:13:06,158 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 23:13:06,158 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 23:13:06,159 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 23:13:06,160 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 23:13:06,161 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 23:13:06,162 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 23:13:06,163 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 23:13:06,164 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 23:13:06,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 23:13:06,166 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 23:13:06,167 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 23:13:06,168 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 23:13:06,168 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 23:13:06,174 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 23:13:06,175 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 23:13:06,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 23:13:06,182 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-11-02 23:13:06,230 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 23:13:06,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 23:13:06,231 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 23:13:06,231 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 23:13:06,234 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 23:13:06,234 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 23:13:06,235 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 23:13:06,235 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 23:13:06,235 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 23:13:06,235 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 23:13:06,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 23:13:06,237 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 23:13:06,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 23:13:06,237 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-02 23:13:06,238 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-02 23:13:06,238 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-02 23:13:06,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 23:13:06,239 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-02 23:13:06,239 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-02 23:13:06,239 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-02 23:13:06,239 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 23:13:06,240 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 23:13:06,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 23:13:06,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 23:13:06,241 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 23:13:06,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:13:06,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 23:13:06,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 23:13:06,242 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-02 23:13:06,242 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-02 23:13:06,242 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 23:13:06,243 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-02 23:13:06,243 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_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e40f9e7b474ba5b84186650c7060a1f3eed5394bab52ac2eaa493135efa417c [2021-11-02 23:13:06,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 23:13:06,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 23:13:06,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 23:13:06,692 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 23:13:06,694 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 23:13:06,695 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/memsafety/test-0234-1.i [2021-11-02 23:13:06,779 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/data/2fd413038/8147233d4c534ac8816acf5f48020c2c/FLAG2376ddd58 [2021-11-02 23:13:07,442 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 23:13:07,442 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/sv-benchmarks/c/memsafety/test-0234-1.i [2021-11-02 23:13:07,461 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/data/2fd413038/8147233d4c534ac8816acf5f48020c2c/FLAG2376ddd58 [2021-11-02 23:13:07,719 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/data/2fd413038/8147233d4c534ac8816acf5f48020c2c [2021-11-02 23:13:07,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 23:13:07,725 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-02 23:13:07,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 23:13:07,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 23:13:07,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 23:13:07,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:13:07" (1/1) ... [2021-11-02 23:13:07,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e5c9eee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:13:07, skipping insertion in model container [2021-11-02 23:13:07,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:13:07" (1/1) ... [2021-11-02 23:13:07,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 23:13:07,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 23:13:08,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:13:08,302 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 23:13:08,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:13:08,429 INFO L208 MainTranslator]: Completed translation [2021-11-02 23:13:08,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:13:08 WrapperNode [2021-11-02 23:13:08,430 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 23:13:08,431 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 23:13:08,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 23:13:08,431 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 23:13:08,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:13:08" (1/1) ... [2021-11-02 23:13:08,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:13:08" (1/1) ... [2021-11-02 23:13:08,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:13:08" (1/1) ... [2021-11-02 23:13:08,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:13:08" (1/1) ... [2021-11-02 23:13:08,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:13:08" (1/1) ... [2021-11-02 23:13:08,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:13:08" (1/1) ... [2021-11-02 23:13:08,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:13:08" (1/1) ... [2021-11-02 23:13:08,533 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 23:13:08,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 23:13:08,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 23:13:08,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 23:13:08,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:13:08" (1/1) ... [2021-11-02 23:13:08,546 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:13:08,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:13:08,570 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 23:13:08,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 23:13:08,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-11-02 23:13:08,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 23:13:08,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-11-02 23:13:08,627 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-11-02 23:13:08,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-11-02 23:13:08,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-11-02 23:13:08,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-11-02 23:13:08,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-11-02 23:13:08,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-11-02 23:13:08,628 INFO L138 BoogieDeclarations]: Found implementation of procedure calloc_model [2021-11-02 23:13:08,628 INFO L138 BoogieDeclarations]: Found implementation of procedure zalloc_or_die [2021-11-02 23:13:08,628 INFO L138 BoogieDeclarations]: Found implementation of procedure l4_insert [2021-11-02 23:13:08,628 INFO L138 BoogieDeclarations]: Found implementation of procedure l3_insert [2021-11-02 23:13:08,629 INFO L138 BoogieDeclarations]: Found implementation of procedure l2_insert [2021-11-02 23:13:08,629 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_insert [2021-11-02 23:13:08,629 INFO L138 BoogieDeclarations]: Found implementation of procedure l0_insert [2021-11-02 23:13:08,629 INFO L138 BoogieDeclarations]: Found implementation of procedure l4_destroy [2021-11-02 23:13:08,629 INFO L138 BoogieDeclarations]: Found implementation of procedure l3_destroy [2021-11-02 23:13:08,630 INFO L138 BoogieDeclarations]: Found implementation of procedure l2_destroy [2021-11-02 23:13:08,630 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_destroy [2021-11-02 23:13:08,630 INFO L138 BoogieDeclarations]: Found implementation of procedure l0_destroy [2021-11-02 23:13:08,630 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-11-02 23:13:08,630 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-02 23:13:08,630 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-11-02 23:13:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-11-02 23:13:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-11-02 23:13:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-11-02 23:13:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-11-02 23:13:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 23:13:08,632 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-11-02 23:13:08,632 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-11-02 23:13:08,632 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-11-02 23:13:08,632 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-11-02 23:13:08,632 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-11-02 23:13:08,633 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-11-02 23:13:08,633 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-11-02 23:13:08,633 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-11-02 23:13:08,633 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-11-02 23:13:08,633 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-11-02 23:13:08,633 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-11-02 23:13:08,634 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-11-02 23:13:08,634 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-11-02 23:13:08,634 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-11-02 23:13:08,634 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-11-02 23:13:08,634 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-11-02 23:13:08,634 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-11-02 23:13:08,635 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-11-02 23:13:08,635 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-11-02 23:13:08,635 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-11-02 23:13:08,635 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-11-02 23:13:08,635 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-11-02 23:13:08,635 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-11-02 23:13:08,636 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-11-02 23:13:08,636 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-11-02 23:13:08,636 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-11-02 23:13:08,636 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-11-02 23:13:08,636 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-11-02 23:13:08,636 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-11-02 23:13:08,637 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-11-02 23:13:08,637 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-11-02 23:13:08,637 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-11-02 23:13:08,637 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-11-02 23:13:08,637 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-11-02 23:13:08,638 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-11-02 23:13:08,638 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-11-02 23:13:08,638 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-11-02 23:13:08,638 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-11-02 23:13:08,638 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-11-02 23:13:08,639 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-11-02 23:13:08,639 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-11-02 23:13:08,639 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-11-02 23:13:08,639 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-11-02 23:13:08,639 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-11-02 23:13:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-11-02 23:13:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-11-02 23:13:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-11-02 23:13:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-11-02 23:13:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-11-02 23:13:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-11-02 23:13:08,641 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-11-02 23:13:08,641 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-11-02 23:13:08,641 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-11-02 23:13:08,641 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-11-02 23:13:08,641 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-11-02 23:13:08,641 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-11-02 23:13:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-11-02 23:13:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-11-02 23:13:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-11-02 23:13:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-11-02 23:13:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-11-02 23:13:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-11-02 23:13:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-11-02 23:13:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-11-02 23:13:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-11-02 23:13:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-11-02 23:13:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-11-02 23:13:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-11-02 23:13:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-11-02 23:13:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-11-02 23:13:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-11-02 23:13:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-11-02 23:13:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-11-02 23:13:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-11-02 23:13:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-11-02 23:13:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-11-02 23:13:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-11-02 23:13:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-11-02 23:13:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-11-02 23:13:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-11-02 23:13:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-11-02 23:13:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-11-02 23:13:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-11-02 23:13:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-11-02 23:13:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-11-02 23:13:08,647 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-11-02 23:13:08,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-11-02 23:13:08,647 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-11-02 23:13:08,647 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-11-02 23:13:08,647 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-11-02 23:13:08,647 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-11-02 23:13:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-11-02 23:13:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-11-02 23:13:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-11-02 23:13:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-11-02 23:13:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-11-02 23:13:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-11-02 23:13:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-11-02 23:13:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-11-02 23:13:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-11-02 23:13:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-11-02 23:13:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-11-02 23:13:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-11-02 23:13:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-11-02 23:13:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-11-02 23:13:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-11-02 23:13:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-11-02 23:13:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2021-11-02 23:13:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure memccpy [2021-11-02 23:13:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-11-02 23:13:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-02 23:13:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2021-11-02 23:13:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2021-11-02 23:13:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-02 23:13:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-11-02 23:13:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure strncat [2021-11-02 23:13:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2021-11-02 23:13:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-02 23:13:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll [2021-11-02 23:13:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm [2021-11-02 23:13:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll_l [2021-11-02 23:13:08,653 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm_l [2021-11-02 23:13:08,653 INFO L130 BoogieDeclarations]: Found specification of procedure strdup [2021-11-02 23:13:08,653 INFO L130 BoogieDeclarations]: Found specification of procedure strndup [2021-11-02 23:13:08,653 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2021-11-02 23:13:08,653 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2021-11-02 23:13:08,653 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2021-11-02 23:13:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure strspn [2021-11-02 23:13:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure strpbrk [2021-11-02 23:13:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-11-02 23:13:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure strtok [2021-11-02 23:13:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure __strtok_r [2021-11-02 23:13:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure strtok_r [2021-11-02 23:13:08,655 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2021-11-02 23:13:08,655 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2021-11-02 23:13:08,655 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2021-11-02 23:13:08,655 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_r [2021-11-02 23:13:08,655 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_l [2021-11-02 23:13:08,655 INFO L130 BoogieDeclarations]: Found specification of procedure bcmp [2021-11-02 23:13:08,656 INFO L130 BoogieDeclarations]: Found specification of procedure bcopy [2021-11-02 23:13:08,656 INFO L130 BoogieDeclarations]: Found specification of procedure bzero [2021-11-02 23:13:08,656 INFO L130 BoogieDeclarations]: Found specification of procedure index [2021-11-02 23:13:08,656 INFO L130 BoogieDeclarations]: Found specification of procedure rindex [2021-11-02 23:13:08,656 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2021-11-02 23:13:08,656 INFO L130 BoogieDeclarations]: Found specification of procedure ffsl [2021-11-02 23:13:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure ffsll [2021-11-02 23:13:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2021-11-02 23:13:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp [2021-11-02 23:13:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp_l [2021-11-02 23:13:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp_l [2021-11-02 23:13:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure explicit_bzero [2021-11-02 23:13:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2021-11-02 23:13:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure strsignal [2021-11-02 23:13:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure __stpcpy [2021-11-02 23:13:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure stpcpy [2021-11-02 23:13:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure __stpncpy [2021-11-02 23:13:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure stpncpy [2021-11-02 23:13:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure calloc_model [2021-11-02 23:13:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 23:13:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-02 23:13:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-11-02 23:13:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure zalloc_or_die [2021-11-02 23:13:08,660 INFO L130 BoogieDeclarations]: Found specification of procedure l4_insert [2021-11-02 23:13:08,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 23:13:08,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 23:13:08,660 INFO L130 BoogieDeclarations]: Found specification of procedure l3_insert [2021-11-02 23:13:08,660 INFO L130 BoogieDeclarations]: Found specification of procedure l2_insert [2021-11-02 23:13:08,660 INFO L130 BoogieDeclarations]: Found specification of procedure l1_insert [2021-11-02 23:13:08,661 INFO L130 BoogieDeclarations]: Found specification of procedure l0_insert [2021-11-02 23:13:08,661 INFO L130 BoogieDeclarations]: Found specification of procedure l4_destroy [2021-11-02 23:13:08,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 23:13:08,661 INFO L130 BoogieDeclarations]: Found specification of procedure l3_destroy [2021-11-02 23:13:08,661 INFO L130 BoogieDeclarations]: Found specification of procedure l2_destroy [2021-11-02 23:13:08,661 INFO L130 BoogieDeclarations]: Found specification of procedure l1_destroy [2021-11-02 23:13:08,662 INFO L130 BoogieDeclarations]: Found specification of procedure l0_destroy [2021-11-02 23:13:08,662 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-11-02 23:13:08,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-11-02 23:13:08,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-02 23:13:08,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 23:13:08,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 23:13:08,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-11-02 23:13:08,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-02 23:13:08,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-02 23:13:09,552 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-02 23:13:10,057 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 23:13:10,058 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-11-02 23:13:10,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:13:10 BoogieIcfgContainer [2021-11-02 23:13:10,061 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 23:13:10,074 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 23:13:10,074 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 23:13:10,077 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 23:13:10,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:13:07" (1/3) ... [2021-11-02 23:13:10,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ae717c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:13:10, skipping insertion in model container [2021-11-02 23:13:10,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:13:08" (2/3) ... [2021-11-02 23:13:10,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ae717c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:13:10, skipping insertion in model container [2021-11-02 23:13:10,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:13:10" (3/3) ... [2021-11-02 23:13:10,079 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0234-1.i [2021-11-02 23:13:10,084 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 23:13:10,084 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 75 error locations. [2021-11-02 23:13:10,133 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 23:13:10,140 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 [2021-11-02 23:13:10,142 INFO L340 AbstractCegarLoop]: Starting to check reachability of 75 error locations. [2021-11-02 23:13:10,170 INFO L276 IsEmpty]: Start isEmpty. Operand has 222 states, 117 states have (on average 1.7777777777777777) internal successors, (208), 187 states have internal predecessors, (208), 20 states have call successors, (20), 15 states have call predecessors, (20), 15 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-02 23:13:10,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-02 23:13:10,193 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:13:10,193 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:13:10,193 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 71 more)] === [2021-11-02 23:13:10,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:13:10,199 INFO L85 PathProgramCache]: Analyzing trace with hash -91109774, now seen corresponding path program 1 times [2021-11-02 23:13:10,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 23:13:10,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1375349111] [2021-11-02 23:13:10,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:13:10,214 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 23:13:10,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 23:13:10,218 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 23:13:10,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-02 23:13:10,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:13:10,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-02 23:13:10,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:13:10,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:13:10,484 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 23:13:10,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:13:10,527 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 23:13:10,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1375349111] [2021-11-02 23:13:10,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1375349111] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-02 23:13:10,530 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:13:10,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-02 23:13:10,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70728237] [2021-11-02 23:13:10,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-02 23:13:10,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 23:13:10,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 23:13:10,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 23:13:10,574 INFO L87 Difference]: Start difference. First operand has 222 states, 117 states have (on average 1.7777777777777777) internal successors, (208), 187 states have internal predecessors, (208), 20 states have call successors, (20), 15 states have call predecessors, (20), 15 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 23:13:10,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:13:10,621 INFO L93 Difference]: Finished difference Result 222 states and 237 transitions. [2021-11-02 23:13:10,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 23:13:10,628 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2021-11-02 23:13:10,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:13:10,647 INFO L225 Difference]: With dead ends: 222 [2021-11-02 23:13:10,647 INFO L226 Difference]: Without dead ends: 219 [2021-11-02 23:13:10,650 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 23:13:10,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-11-02 23:13:10,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2021-11-02 23:13:10,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 111 states have (on average 1.7567567567567568) internal successors, (195), 185 states have internal predecessors, (195), 20 states have call successors, (20), 15 states have call predecessors, (20), 14 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-02 23:13:10,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 234 transitions. [2021-11-02 23:13:10,757 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 234 transitions. Word has length 7 [2021-11-02 23:13:10,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:13:10,758 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 234 transitions. [2021-11-02 23:13:10,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 23:13:10,759 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 234 transitions. [2021-11-02 23:13:10,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-02 23:13:10,760 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:13:10,760 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:13:10,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-02 23:13:10,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 23:13:10,973 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting calloc_modelErr0REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 71 more)] === [2021-11-02 23:13:10,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:13:10,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1561102505, now seen corresponding path program 1 times [2021-11-02 23:13:10,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 23:13:10,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1803185233] [2021-11-02 23:13:10,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:13:10,975 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 23:13:10,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 23:13:10,977 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 23:13:10,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-02 23:13:11,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:13:11,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 23:13:11,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:13:11,308 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 [2021-11-02 23:13:11,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:13:11,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 23:13:11,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:13:11,376 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 23:13:11,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1803185233] [2021-11-02 23:13:11,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1803185233] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-02 23:13:11,377 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:13:11,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-02 23:13:11,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464413056] [2021-11-02 23:13:11,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:13:11,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 23:13:11,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:13:11,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:13:11,391 INFO L87 Difference]: Start difference. First operand 219 states and 234 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 23:13:11,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:13:11,741 INFO L93 Difference]: Finished difference Result 218 states and 233 transitions. [2021-11-02 23:13:11,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:13:11,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-11-02 23:13:11,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:13:11,744 INFO L225 Difference]: With dead ends: 218 [2021-11-02 23:13:11,745 INFO L226 Difference]: Without dead ends: 218 [2021-11-02 23:13:11,745 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:13:11,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-11-02 23:13:11,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2021-11-02 23:13:11,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 111 states have (on average 1.7477477477477477) internal successors, (194), 184 states have internal predecessors, (194), 20 states have call successors, (20), 15 states have call predecessors, (20), 14 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-02 23:13:11,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 233 transitions. [2021-11-02 23:13:11,780 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 233 transitions. Word has length 12 [2021-11-02 23:13:11,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:13:11,780 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 233 transitions. [2021-11-02 23:13:11,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 23:13:11,781 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 233 transitions. [2021-11-02 23:13:11,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-02 23:13:11,781 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:13:11,782 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:13:11,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-02 23:13:12,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 23:13:12,004 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting calloc_modelErr1REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 71 more)] === [2021-11-02 23:13:12,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:13:12,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1561102506, now seen corresponding path program 1 times [2021-11-02 23:13:12,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 23:13:12,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [717662652] [2021-11-02 23:13:12,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:13:12,006 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 23:13:12,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 23:13:12,007 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 23:13:12,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-02 23:13:12,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:13:12,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-02 23:13:12,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:13:12,343 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 8 treesize of output 7 [2021-11-02 23:13:12,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:13:12,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 23:13:12,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:13:12,879 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 23:13:12,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [717662652] [2021-11-02 23:13:12,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [717662652] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-02 23:13:12,880 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:13:12,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 2] imperfect sequences [] total 6 [2021-11-02 23:13:12,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787666050] [2021-11-02 23:13:12,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-02 23:13:12,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 23:13:12,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-02 23:13:12,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-02 23:13:12,883 INFO L87 Difference]: Start difference. First operand 218 states and 233 transitions. Second operand has 7 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 23:13:15,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:13:15,559 INFO L93 Difference]: Finished difference Result 228 states and 243 transitions. [2021-11-02 23:13:15,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-02 23:13:15,562 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-11-02 23:13:15,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:13:15,567 INFO L225 Difference]: With dead ends: 228 [2021-11-02 23:13:15,567 INFO L226 Difference]: Without dead ends: 228 [2021-11-02 23:13:15,572 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:13:15,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-11-02 23:13:15,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2021-11-02 23:13:15,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 117 states have (on average 1.7094017094017093) internal successors, (200), 190 states have internal predecessors, (200), 22 states have call successors, (22), 17 states have call predecessors, (22), 16 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2021-11-02 23:13:15,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 243 transitions. [2021-11-02 23:13:15,611 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 243 transitions. Word has length 12 [2021-11-02 23:13:15,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:13:15,612 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 243 transitions. [2021-11-02 23:13:15,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-02 23:13:15,613 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 243 transitions. [2021-11-02 23:13:15,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-02 23:13:15,621 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:13:15,622 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2021-11-02 23:13:15,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-02 23:13:15,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 23:13:15,837 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting l4_insertErr0REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 71 more)] === [2021-11-02 23:13:15,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:13:15,838 INFO L85 PathProgramCache]: Analyzing trace with hash -394862790, now seen corresponding path program 1 times [2021-11-02 23:13:15,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 23:13:15,839 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1590854839] [2021-11-02 23:13:15,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:13:15,840 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 23:13:15,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 23:13:15,841 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 23:13:15,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-02 23:13:16,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:13:16,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-02 23:13:16,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:13:17,033 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-11-02 23:13:17,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 23:13:19,377 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-02 23:13:19,377 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 23:13:19,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1590854839] [2021-11-02 23:13:19,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1590854839] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-02 23:13:19,377 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-02 23:13:19,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 13 [2021-11-02 23:13:19,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598597056] [2021-11-02 23:13:19,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-02 23:13:19,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 23:13:19,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-02 23:13:19,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-02 23:13:19,380 INFO L87 Difference]: Start difference. First operand 228 states and 243 transitions. Second operand has 8 states, 6 states have (on average 5.833333333333333) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2021-11-02 23:13:19,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:13:19,931 INFO L93 Difference]: Finished difference Result 245 states and 260 transitions. [2021-11-02 23:13:19,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-02 23:13:19,932 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 5.833333333333333) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 123 [2021-11-02 23:13:19,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:13:19,934 INFO L225 Difference]: With dead ends: 245 [2021-11-02 23:13:19,934 INFO L226 Difference]: Without dead ends: 229 [2021-11-02 23:13:19,935 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 233 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2021-11-02 23:13:19,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-11-02 23:13:19,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2021-11-02 23:13:19,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 118 states have (on average 1.7033898305084745) internal successors, (201), 191 states have internal predecessors, (201), 22 states have call successors, (22), 17 states have call predecessors, (22), 16 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2021-11-02 23:13:19,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 244 transitions. [2021-11-02 23:13:19,947 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 244 transitions. Word has length 123 [2021-11-02 23:13:19,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:13:19,948 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 244 transitions. [2021-11-02 23:13:19,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 5.833333333333333) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2021-11-02 23:13:19,948 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 244 transitions. [2021-11-02 23:13:19,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-02 23:13:19,952 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:13:19,952 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2021-11-02 23:13:19,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-02 23:13:20,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 23:13:20,167 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting l4_insertErr0REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 71 more)] === [2021-11-02 23:13:20,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:13:20,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1060945400, now seen corresponding path program 1 times [2021-11-02 23:13:20,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 23:13:20,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [317354188] [2021-11-02 23:13:20,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:13:20,170 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 23:13:20,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 23:13:20,171 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 23:13:20,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-02 23:13:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:13:20,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-02 23:13:20,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:13:21,375 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 95 proven. 1 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-11-02 23:13:21,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 23:13:23,754 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2021-11-02 23:13:23,754 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 23:13:23,754 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [317354188] [2021-11-02 23:13:23,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [317354188] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-02 23:13:23,754 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:13:23,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2021-11-02 23:13:23,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101580654] [2021-11-02 23:13:23,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-02 23:13:23,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 23:13:23,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-02 23:13:23,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2021-11-02 23:13:23,757 INFO L87 Difference]: Start difference. First operand 229 states and 244 transitions. Second operand has 15 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 15 states have internal predecessors, (58), 6 states have call successors, (26), 2 states have call predecessors, (26), 7 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) [2021-11-02 23:13:24,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:13:24,644 INFO L93 Difference]: Finished difference Result 246 states and 261 transitions. [2021-11-02 23:13:24,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-02 23:13:24,645 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 15 states have internal predecessors, (58), 6 states have call successors, (26), 2 states have call predecessors, (26), 7 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) Word has length 129 [2021-11-02 23:13:24,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:13:24,647 INFO L225 Difference]: With dead ends: 246 [2021-11-02 23:13:24,648 INFO L226 Difference]: Without dead ends: 230 [2021-11-02 23:13:24,648 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 243 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2021-11-02 23:13:24,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-11-02 23:13:24,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2021-11-02 23:13:24,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 119 states have (on average 1.6974789915966386) internal successors, (202), 192 states have internal predecessors, (202), 22 states have call successors, (22), 17 states have call predecessors, (22), 16 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2021-11-02 23:13:24,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 245 transitions. [2021-11-02 23:13:24,659 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 245 transitions. Word has length 129 [2021-11-02 23:13:24,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:13:24,659 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 245 transitions. [2021-11-02 23:13:24,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 15 states have internal predecessors, (58), 6 states have call successors, (26), 2 states have call predecessors, (26), 7 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) [2021-11-02 23:13:24,660 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 245 transitions. [2021-11-02 23:13:24,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-02 23:13:24,662 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:13:24,662 INFO L513 BasicCegarLoop]: trace histogram [12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2021-11-02 23:13:24,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-02 23:13:24,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 23:13:24,878 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting l4_insertErr0REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 71 more)] === [2021-11-02 23:13:24,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:13:24,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1927428730, now seen corresponding path program 2 times [2021-11-02 23:13:24,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 23:13:24,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1141648741] [2021-11-02 23:13:24,880 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 23:13:24,880 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 23:13:24,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 23:13:24,884 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 23:13:24,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-02 23:13:25,369 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 23:13:25,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:13:25,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-02 23:13:25,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:13:26,155 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 120 proven. 3 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-11-02 23:13:26,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 23:13:28,630 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2021-11-02 23:13:28,630 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 23:13:28,630 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1141648741] [2021-11-02 23:13:28,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1141648741] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-02 23:13:28,630 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:13:28,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-11-02 23:13:28,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602607534] [2021-11-02 23:13:28,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-02 23:13:28,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-02 23:13:28,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-02 23:13:28,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2021-11-02 23:13:28,633 INFO L87 Difference]: Start difference. First operand 230 states and 245 transitions. Second operand has 17 states, 13 states have (on average 4.615384615384615) internal successors, (60), 17 states have internal predecessors, (60), 6 states have call successors, (26), 2 states have call predecessors, (26), 7 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) [2021-11-02 23:13:29,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:13:29,755 INFO L93 Difference]: Finished difference Result 247 states and 262 transitions. [2021-11-02 23:13:29,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-02 23:13:29,756 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 4.615384615384615) internal successors, (60), 17 states have internal predecessors, (60), 6 states have call successors, (26), 2 states have call predecessors, (26), 7 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) Word has length 135 [2021-11-02 23:13:29,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:13:29,758 INFO L225 Difference]: With dead ends: 247 [2021-11-02 23:13:29,758 INFO L226 Difference]: Without dead ends: 231 [2021-11-02 23:13:29,759 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 253 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:13:29,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-11-02 23:13:29,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2021-11-02 23:13:29,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 120 states have (on average 1.6916666666666667) internal successors, (203), 193 states have internal predecessors, (203), 22 states have call successors, (22), 17 states have call predecessors, (22), 16 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2021-11-02 23:13:29,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 246 transitions. [2021-11-02 23:13:29,771 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 246 transitions. Word has length 135 [2021-11-02 23:13:29,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:13:29,771 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 246 transitions. [2021-11-02 23:13:29,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 4.615384615384615) internal successors, (60), 17 states have internal predecessors, (60), 6 states have call successors, (26), 2 states have call predecessors, (26), 7 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) [2021-11-02 23:13:29,772 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 246 transitions. [2021-11-02 23:13:29,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-02 23:13:29,775 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:13:29,775 INFO L513 BasicCegarLoop]: trace histogram [18, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2021-11-02 23:13:29,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-02 23:13:29,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 [2021-11-02 23:13:29,996 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting l4_insertErr0REQUIRES_VIOLATION === [l3_destroyErr0REQUIRES_VIOLATION, l3_destroyErr1REQUIRES_VIOLATION, l3_destroyErr2REQUIRES_VIOLATION, l3_destroyErr3REQUIRES_VIOLATION (and 71 more)] === [2021-11-02 23:13:29,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:13:29,996 INFO L85 PathProgramCache]: Analyzing trace with hash -2017574712, now seen corresponding path program 3 times [2021-11-02 23:13:29,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-02 23:13:29,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1128991089] [2021-11-02 23:13:29,997 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 23:13:29,998 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-02 23:13:29,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat [2021-11-02 23:13:29,999 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-02 23:13:30,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-02 23:13:30,504 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-02 23:13:30,504 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:13:30,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-02 23:13:30,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:13:30,784 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 [2021-11-02 23:13:31,081 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 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-02 23:13:31,343 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-02 23:13:31,343 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 32 [2021-11-02 23:13:31,418 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 239 proven. 8 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2021-11-02 23:13:31,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 23:13:46,351 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-02 23:13:46,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1128991089] [2021-11-02 23:13:46,352 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [v_l4_insert_~item~0.base_BEFORE_CALL_2] [2021-11-02 23:13:46,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [877724588] [2021-11-02 23:13:46,352 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 23:13:46,352 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-02 23:13:46,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/cvc4 [2021-11-02 23:13:46,364 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-02 23:13:46,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-02 23:13:47,350 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-02 23:13:47,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:13:47,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-02 23:13:47,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:13:47,736 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 [2021-11-02 23:13:49,934 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 [2021-11-02 23:13:54,278 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-02 23:13:54,279 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 [2021-11-02 23:13:54,317 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 259 proven. 7 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-02 23:13:54,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 23:14:02,805 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [v_l4_insert_~item~0.base_BEFORE_CALL_4] [2021-11-02 23:14:02,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145548789] [2021-11-02 23:14:02,807 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 23:14:02,808 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:14:02,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:14:02,809 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:14:02,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-02 23:14:03,417 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-02 23:14:03,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:14:03,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-02 23:14:03,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:14:03,721 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 [2021-11-02 23:14:03,983 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 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-02 23:14:04,229 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-02 23:14:04,229 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 26 treesize of output 33 [2021-11-02 23:14:04,294 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 239 proven. 8 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2021-11-02 23:14:04,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-02 23:14:17,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [v_l4_insert_~item~0.base_BEFORE_CALL_2] [2021-11-02 23:14:17,124 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:14:17,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-02 23:14:17,124 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-11-02 23:14:17,124 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-11-02 23:14:17,132 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr0REQUIRES_VIOLATION [2021-11-02 23:14:17,134 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr0REQUIRES_VIOLATION [2021-11-02 23:14:17,134 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr1REQUIRES_VIOLATION [2021-11-02 23:14:17,134 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr2REQUIRES_VIOLATION [2021-11-02 23:14:17,135 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr3REQUIRES_VIOLATION [2021-11-02 23:14:17,135 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr4ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:14:17,135 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr5ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:14:17,135 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:14:17,136 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr0REQUIRES_VIOLATION [2021-11-02 23:14:17,136 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr1REQUIRES_VIOLATION [2021-11-02 23:14:17,136 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr2REQUIRES_VIOLATION [2021-11-02 23:14:17,136 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr3REQUIRES_VIOLATION [2021-11-02 23:14:17,136 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr4REQUIRES_VIOLATION [2021-11-02 23:14:17,137 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l3_insertErr5REQUIRES_VIOLATION [2021-11-02 23:14:17,137 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr0REQUIRES_VIOLATION [2021-11-02 23:14:17,137 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr1REQUIRES_VIOLATION [2021-11-02 23:14:17,137 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr2REQUIRES_VIOLATION [2021-11-02 23:14:17,137 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr3REQUIRES_VIOLATION [2021-11-02 23:14:17,138 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr4REQUIRES_VIOLATION [2021-11-02 23:14:17,138 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_insertErr5REQUIRES_VIOLATION [2021-11-02 23:14:17,138 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr0REQUIRES_VIOLATION [2021-11-02 23:14:17,138 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr1REQUIRES_VIOLATION [2021-11-02 23:14:17,138 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr2ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:14:17,139 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr3ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:14:17,139 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr4ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:14:17,139 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr5REQUIRES_VIOLATION [2021-11-02 23:14:17,139 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr6REQUIRES_VIOLATION [2021-11-02 23:14:17,139 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr7ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:14:17,140 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr8ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:14:17,140 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_destroyErr9ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:14:17,140 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr0REQUIRES_VIOLATION [2021-11-02 23:14:17,140 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr1REQUIRES_VIOLATION [2021-11-02 23:14:17,140 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr2REQUIRES_VIOLATION [2021-11-02 23:14:17,141 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr3REQUIRES_VIOLATION [2021-11-02 23:14:17,141 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr4REQUIRES_VIOLATION [2021-11-02 23:14:17,141 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_insertErr5REQUIRES_VIOLATION [2021-11-02 23:14:17,141 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location calloc_modelErr0REQUIRES_VIOLATION [2021-11-02 23:14:17,141 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location calloc_modelErr1REQUIRES_VIOLATION [2021-11-02 23:14:17,142 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr0REQUIRES_VIOLATION [2021-11-02 23:14:17,142 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr1REQUIRES_VIOLATION [2021-11-02 23:14:17,142 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr2REQUIRES_VIOLATION [2021-11-02 23:14:17,142 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr3REQUIRES_VIOLATION [2021-11-02 23:14:17,142 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr4ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:14:17,153 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr5ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:14:17,153 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l1_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:14:17,154 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0REQUIRES_VIOLATION [2021-11-02 23:14:17,154 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1REQUIRES_VIOLATION [2021-11-02 23:14:17,154 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2ENSURES_VIOLATIONMEMORY_LEAK [2021-11-02 23:14:17,154 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr0REQUIRES_VIOLATION [2021-11-02 23:14:17,154 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr1REQUIRES_VIOLATION [2021-11-02 23:14:17,155 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr2REQUIRES_VIOLATION [2021-11-02 23:14:17,155 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr3REQUIRES_VIOLATION [2021-11-02 23:14:17,155 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr4ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:14:17,155 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr5ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:14:17,155 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l2_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:14:17,156 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr0REQUIRES_VIOLATION [2021-11-02 23:14:17,156 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr1REQUIRES_VIOLATION [2021-11-02 23:14:17,156 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr2REQUIRES_VIOLATION [2021-11-02 23:14:17,156 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr3REQUIRES_VIOLATION [2021-11-02 23:14:17,156 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr4ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:14:17,157 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr5ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:14:17,157 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_destroyErr6ASSERT_VIOLATIONMEMORY_FREE [2021-11-02 23:14:17,157 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr0REQUIRES_VIOLATION [2021-11-02 23:14:17,157 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr1REQUIRES_VIOLATION [2021-11-02 23:14:17,157 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr2REQUIRES_VIOLATION [2021-11-02 23:14:17,157 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr3REQUIRES_VIOLATION [2021-11-02 23:14:17,158 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr4REQUIRES_VIOLATION [2021-11-02 23:14:17,158 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l0_insertErr5REQUIRES_VIOLATION [2021-11-02 23:14:17,158 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr1REQUIRES_VIOLATION [2021-11-02 23:14:17,158 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr2REQUIRES_VIOLATION [2021-11-02 23:14:17,158 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr3REQUIRES_VIOLATION [2021-11-02 23:14:17,159 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr4REQUIRES_VIOLATION [2021-11-02 23:14:17,159 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr5REQUIRES_VIOLATION [2021-11-02 23:14:17,159 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr6REQUIRES_VIOLATION [2021-11-02 23:14:17,159 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location l4_insertErr7REQUIRES_VIOLATION [2021-11-02 23:14:17,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-02 23:14:17,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-11-02 23:14:17,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-02 23:14:17,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:14:17,776 INFO L731 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2021-11-02 23:14:17,779 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-02 23:14:17,784 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-11-02 23:14:17,785 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-11-02 23:14:17,785 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-11-02 23:14:17,785 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-11-02 23:14:17,785 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-11-02 23:14:17,786 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-11-02 23:14:17,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 11:14:17 BoogieIcfgContainer [2021-11-02 23:14:17,797 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-02 23:14:17,798 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 23:14:17,798 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 23:14:17,798 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 23:14:17,801 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:13:10" (3/4) ... [2021-11-02 23:14:17,805 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-02 23:14:17,805 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 23:14:17,806 INFO L168 Benchmark]: Toolchain (without parser) took 70081.16 ms. Allocated memory was 60.8 MB in the beginning and 94.4 MB in the end (delta: 33.6 MB). Free memory was 38.7 MB in the beginning and 54.0 MB in the end (delta: -15.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. [2021-11-02 23:14:17,807 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 60.8 MB. Free memory is still 40.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:14:17,807 INFO L168 Benchmark]: CACSL2BoogieTranslator took 703.86 ms. Allocated memory is still 60.8 MB. Free memory was 38.5 MB in the beginning and 32.2 MB in the end (delta: 6.2 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. [2021-11-02 23:14:17,807 INFO L168 Benchmark]: Boogie Preprocessor took 102.95 ms. Allocated memory is still 60.8 MB. Free memory was 32.0 MB in the beginning and 27.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-02 23:14:17,808 INFO L168 Benchmark]: RCFGBuilder took 1526.12 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 27.9 MB in the beginning and 35.8 MB in the end (delta: -8.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2021-11-02 23:14:17,808 INFO L168 Benchmark]: TraceAbstraction took 67723.12 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 55.2 MB in the beginning and 54.8 MB in the end (delta: 392.8 kB). Peak memory consumption was 51.2 MB. Max. memory is 16.1 GB. [2021-11-02 23:14:17,809 INFO L168 Benchmark]: Witness Printer took 7.73 ms. Allocated memory is still 94.4 MB. Free memory was 54.8 MB in the beginning and 54.0 MB in the end (delta: 787.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 23:14:17,811 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 60.8 MB. Free memory is still 40.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 703.86 ms. Allocated memory is still 60.8 MB. Free memory was 38.5 MB in the beginning and 32.2 MB in the end (delta: 6.2 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 102.95 ms. Allocated memory is still 60.8 MB. Free memory was 32.0 MB in the beginning and 27.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1526.12 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 27.9 MB in the beginning and 35.8 MB in the end (delta: -8.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 67723.12 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 55.2 MB in the beginning and 54.8 MB in the end (delta: 392.8 kB). Peak memory consumption was 51.2 MB. Max. memory is 16.1 GB. * Witness Printer took 7.73 ms. Allocated memory is still 94.4 MB. Free memory was 54.8 MB in the beginning and 54.0 MB in the end (delta: 787.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * 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: 675]: 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: [L767] static struct L0 *list; [L769] CALL l0_insert(&list) [L708] CALL, EXPR zalloc_or_die(sizeof *item) [L667] CALL, EXPR calloc_model(1U, size) [L641] void *ptr = malloc(nmemb * size); [L642] EXPR, FCALL memset(ptr, 0, nmemb * size) [L642] return memset(ptr, 0, nmemb * size); [L667] RET, EXPR calloc_model(1U, size) [L667] void *ptr = calloc_model(1U, size); [L668] COND TRUE \read(*ptr) [L669] return ptr; [L708] RET, EXPR zalloc_or_die(sizeof *item) [L708] struct L0 *item = zalloc_or_die(sizeof *item); [L710] CALL l1_insert(&item->down) [L699] CALL, EXPR zalloc_or_die(sizeof *item) [L667] CALL, EXPR calloc_model(1U, size) [L641] void *ptr = malloc(nmemb * size); [L642] EXPR, FCALL memset(ptr, 0, nmemb * size) [L642] return memset(ptr, 0, nmemb * size); [L667] RET, EXPR calloc_model(1U, size) [L667] void *ptr = calloc_model(1U, size); [L668] COND TRUE \read(*ptr) [L669] return ptr; [L699] RET, EXPR zalloc_or_die(sizeof *item) [L699] struct L1 *item = zalloc_or_die(sizeof *item); [L701] CALL l2_insert(&item->down) [L690] CALL, EXPR zalloc_or_die(sizeof *item) [L667] CALL, EXPR calloc_model(1U, size) [L641] void *ptr = malloc(nmemb * size); [L642] EXPR, FCALL memset(ptr, 0, nmemb * size) [L642] return memset(ptr, 0, nmemb * size); [L667] RET, EXPR calloc_model(1U, size) [L667] void *ptr = calloc_model(1U, size); [L668] COND TRUE \read(*ptr) [L669] return ptr; [L690] RET, EXPR zalloc_or_die(sizeof *item) [L690] struct L2 *item = zalloc_or_die(sizeof *item); [L692] CALL l3_insert(&item->down) [L681] CALL, EXPR zalloc_or_die(sizeof *item) [L667] CALL, EXPR calloc_model(1U, size) [L641] void *ptr = malloc(nmemb * size); [L642] EXPR, FCALL memset(ptr, 0, nmemb * size) [L642] return memset(ptr, 0, nmemb * size); [L667] RET, EXPR calloc_model(1U, size) [L667] void *ptr = calloc_model(1U, size); [L668] COND TRUE \read(*ptr) [L669] return ptr; [L681] RET, EXPR zalloc_or_die(sizeof *item) [L681] struct L3 *item = zalloc_or_die(sizeof *item); [L683] CALL l4_insert(&item->down) [L674] CALL, EXPR zalloc_or_die(sizeof *item) [L667] CALL, EXPR calloc_model(1U, size) [L641] void *ptr = malloc(nmemb * size); [L642] EXPR, FCALL memset(ptr, 0, nmemb * size) [L642] return memset(ptr, 0, nmemb * size); [L667] RET, EXPR calloc_model(1U, size) [L667] void *ptr = calloc_model(1U, size); [L668] COND TRUE \read(*ptr) [L669] return ptr; [L674] RET, EXPR zalloc_or_die(sizeof *item) [L674] struct L4 *item = zalloc_or_die(sizeof *item); [L675] CALL, EXPR zalloc_or_die(119U) [L667] CALL, EXPR calloc_model(1U, size) [L641] void *ptr = malloc(nmemb * size); [L642] EXPR, FCALL memset(ptr, 0, nmemb * size) [L642] return memset(ptr, 0, nmemb * size); [L667] RET, EXPR calloc_model(1U, size) [L667] void *ptr = calloc_model(1U, size); [L668] COND TRUE \read(*ptr) [L669] return ptr; [L675] RET, EXPR zalloc_or_die(119U) [L675] item->down = zalloc_or_die(119U) - UnprovableResult [Line: 728]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 728]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 730]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 730]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 730]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 685]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 685]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 685]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 685]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 686]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 686]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 642]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 642]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 748]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 748]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 749]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 749]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 750]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 750]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 750]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 771]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 771]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 765]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 738]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 738]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 739]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 739]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 740]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 740]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 740]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 758]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 758]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 759]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 759]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 760]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 760]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 760]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 675]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 676]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 676]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 676]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 676]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 677]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 677]: 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 23 procedures, 246 locations, 75 error locations. Started 1 CEGAR loops. OverallTime: 67.6s, OverallIterations: 7, TraceHistogramMax: 18, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1361 SDtfs, 64 SDslu, 7065 SDs, 0 SdLazy, 683 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 844 GetRequests, 783 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=231occurred in iteration=6, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 26.3s InterpolantComputationTime, 559 NumberOfCodeBlocks, 463 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 964 ConstructedInterpolants, 25 QuantifiedInterpolants, 1756 SizeOfPredicates, 18 NumberOfNonLiveVariables, 2176 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 2068/2319 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 [2021-11-02 23:14:17,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875506b8-b26f-4b8c-b4de-32c72a45c969/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN