./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix017_power.opt_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix017_power.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8 --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 c394bf0b454616c76d3ba114fe7f9b161b2a3a1a85dec23beec05d3a021c1c91 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 11:07:17,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:07:17,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:07:17,644 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:07:17,644 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:07:17,645 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:07:17,646 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:07:17,648 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:07:17,649 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:07:17,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:07:17,651 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:07:17,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:07:17,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:07:17,654 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:07:17,655 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:07:17,656 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:07:17,657 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:07:17,658 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:07:17,660 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:07:17,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:07:17,663 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:07:17,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:07:17,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:07:17,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:07:17,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:07:17,670 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:07:17,670 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:07:17,671 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:07:17,672 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:07:17,673 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:07:17,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:07:17,674 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:07:17,675 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:07:17,675 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:07:17,689 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:07:17,689 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:07:17,690 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:07:17,690 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:07:17,690 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:07:17,691 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:07:17,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:07:17,692 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 11:07:17,721 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:07:17,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:07:17,722 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:07:17,722 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:07:17,723 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:07:17,723 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:07:17,724 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:07:17,724 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:07:17,724 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:07:17,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:07:17,724 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:07:17,724 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 11:07:17,725 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:07:17,725 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:07:17,725 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:07:17,725 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 11:07:17,725 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 11:07:17,725 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 11:07:17,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:07:17,726 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 11:07:17,726 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:07:17,726 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:07:17,726 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:07:17,726 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:07:17,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:07:17,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:07:17,727 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:07:17,727 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:07:17,727 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:07:17,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:07:17,728 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:07:17,728 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:07:17,728 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:07:17,728 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:07:17,728 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c394bf0b454616c76d3ba114fe7f9b161b2a3a1a85dec23beec05d3a021c1c91 [2022-12-13 11:07:17,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:07:17,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:07:17,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:07:17,936 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:07:17,936 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:07:17,937 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/mix017_power.opt_rmo.opt.i [2022-12-13 11:07:20,486 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:07:20,698 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:07:20,698 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/sv-benchmarks/c/pthread-wmm/mix017_power.opt_rmo.opt.i [2022-12-13 11:07:20,709 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/data/921c97d5e/3cc386466c1b4594a64ba449ce773963/FLAG624c0f443 [2022-12-13 11:07:20,724 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/data/921c97d5e/3cc386466c1b4594a64ba449ce773963 [2022-12-13 11:07:20,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:07:20,727 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:07:20,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:07:20,729 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:07:20,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:07:20,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:07:20" (1/1) ... [2022-12-13 11:07:20,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c1ca759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:20, skipping insertion in model container [2022-12-13 11:07:20,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:07:20" (1/1) ... [2022-12-13 11:07:20,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:07:20,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:07:20,936 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/sv-benchmarks/c/pthread-wmm/mix017_power.opt_rmo.opt.i[958,971] [2022-12-13 11:07:21,069 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,069 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,070 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,070 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,070 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,070 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,071 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,071 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,072 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,072 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,072 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,079 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,079 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,079 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,080 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,080 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,081 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,082 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,082 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,083 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,083 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,085 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,085 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,085 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,086 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,086 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,086 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,086 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,087 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,087 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,087 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,089 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,089 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,094 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,097 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,097 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,098 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:07:21,107 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:07:21,115 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/sv-benchmarks/c/pthread-wmm/mix017_power.opt_rmo.opt.i[958,971] [2022-12-13 11:07:21,129 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,129 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,129 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,130 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,130 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,130 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,130 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,130 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,131 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,131 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,131 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,136 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,136 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,137 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,137 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,137 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,138 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,138 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,139 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,139 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,139 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,141 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,141 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,141 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,142 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,142 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,142 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,142 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,143 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,143 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,143 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,145 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,145 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,145 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,148 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,148 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,148 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,150 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,150 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:21,150 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:21,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:07:21,173 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:07:21,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:21 WrapperNode [2022-12-13 11:07:21,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:07:21,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:07:21,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:07:21,174 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:07:21,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:21" (1/1) ... [2022-12-13 11:07:21,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:21" (1/1) ... [2022-12-13 11:07:21,215 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 146 [2022-12-13 11:07:21,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:07:21,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:07:21,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:07:21,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:07:21,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:21" (1/1) ... [2022-12-13 11:07:21,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:21" (1/1) ... [2022-12-13 11:07:21,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:21" (1/1) ... [2022-12-13 11:07:21,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:21" (1/1) ... [2022-12-13 11:07:21,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:21" (1/1) ... [2022-12-13 11:07:21,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:21" (1/1) ... [2022-12-13 11:07:21,234 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:21" (1/1) ... [2022-12-13 11:07:21,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:21" (1/1) ... [2022-12-13 11:07:21,238 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:07:21,238 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:07:21,238 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:07:21,238 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:07:21,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:21" (1/1) ... [2022-12-13 11:07:21,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:07:21,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:07:21,268 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:07:21,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:07:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 11:07:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 11:07:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:07:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:07:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:07:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 11:07:21,295 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 11:07:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 11:07:21,295 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 11:07:21,295 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 11:07:21,296 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 11:07:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-13 11:07:21,296 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-13 11:07:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:07:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 11:07:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:07:21,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:07:21,297 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 11:07:21,417 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:07:21,420 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:07:21,701 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:07:21,807 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:07:21,807 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 11:07:21,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:07:21 BoogieIcfgContainer [2022-12-13 11:07:21,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:07:21,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:07:21,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:07:21,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:07:21,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:07:20" (1/3) ... [2022-12-13 11:07:21,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8f119d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:07:21, skipping insertion in model container [2022-12-13 11:07:21,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:21" (2/3) ... [2022-12-13 11:07:21,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8f119d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:07:21, skipping insertion in model container [2022-12-13 11:07:21,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:07:21" (3/3) ... [2022-12-13 11:07:21,818 INFO L112 eAbstractionObserver]: Analyzing ICFG mix017_power.opt_rmo.opt.i [2022-12-13 11:07:21,836 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:07:21,836 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-12-13 11:07:21,836 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 11:07:21,882 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 11:07:21,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 149 transitions, 318 flow [2022-12-13 11:07:21,950 INFO L130 PetriNetUnfolder]: 2/145 cut-off events. [2022-12-13 11:07:21,950 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:07:21,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 145 events. 2/145 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 101 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-12-13 11:07:21,955 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 149 transitions, 318 flow [2022-12-13 11:07:21,959 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 145 transitions, 302 flow [2022-12-13 11:07:21,961 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 11:07:21,969 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 156 places, 145 transitions, 302 flow [2022-12-13 11:07:21,971 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 156 places, 145 transitions, 302 flow [2022-12-13 11:07:21,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 145 transitions, 302 flow [2022-12-13 11:07:21,993 INFO L130 PetriNetUnfolder]: 2/145 cut-off events. [2022-12-13 11:07:21,993 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:07:21,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 145 events. 2/145 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 101 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-12-13 11:07:21,995 INFO L119 LiptonReduction]: Number of co-enabled transitions 3396 [2022-12-13 11:07:25,247 INFO L134 LiptonReduction]: Checked pairs total: 8377 [2022-12-13 11:07:25,247 INFO L136 LiptonReduction]: Total number of compositions: 137 [2022-12-13 11:07:25,261 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:07:25,266 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@10a8c20, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:07:25,266 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-12-13 11:07:25,267 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 11:07:25,267 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:07:25,268 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:25,268 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 11:07:25,268 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 11:07:25,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:25,272 INFO L85 PathProgramCache]: Analyzing trace with hash 603, now seen corresponding path program 1 times [2022-12-13 11:07:25,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:07:25,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970697809] [2022-12-13 11:07:25,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:25,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:07:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:25,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:25,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:07:25,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970697809] [2022-12-13 11:07:25,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970697809] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:25,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:25,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 11:07:25,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109914013] [2022-12-13 11:07:25,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:25,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 11:07:25,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:07:25,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 11:07:25,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 11:07:25,389 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 286 [2022-12-13 11:07:25,391 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 39 transitions, 90 flow. Second operand has 2 states, 2 states have (on average 136.5) internal successors, (273), 2 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:25,392 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:25,392 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 286 [2022-12-13 11:07:25,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:26,192 INFO L130 PetriNetUnfolder]: 5049/7091 cut-off events. [2022-12-13 11:07:26,192 INFO L131 PetriNetUnfolder]: For 60/60 co-relation queries the response was YES. [2022-12-13 11:07:26,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14129 conditions, 7091 events. 5049/7091 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 388. Compared 37288 event pairs, 5049 based on Foata normal form. 0/6055 useless extension candidates. Maximal degree in co-relation 14117. Up to 6881 conditions per place. [2022-12-13 11:07:26,222 INFO L137 encePairwiseOnDemand]: 277/286 looper letters, 26 selfloop transitions, 0 changer transitions 0/30 dead transitions. [2022-12-13 11:07:26,223 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 30 transitions, 124 flow [2022-12-13 11:07:26,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 11:07:26,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 11:07:26,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 307 transitions. [2022-12-13 11:07:26,232 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5367132867132867 [2022-12-13 11:07:26,232 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 307 transitions. [2022-12-13 11:07:26,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 307 transitions. [2022-12-13 11:07:26,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:26,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 307 transitions. [2022-12-13 11:07:26,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 153.5) internal successors, (307), 2 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:26,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 286.0) internal successors, (858), 3 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:26,241 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 286.0) internal successors, (858), 3 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:26,242 INFO L175 Difference]: Start difference. First operand has 51 places, 39 transitions, 90 flow. Second operand 2 states and 307 transitions. [2022-12-13 11:07:26,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 30 transitions, 124 flow [2022-12-13 11:07:26,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 30 transitions, 120 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 11:07:26,247 INFO L231 Difference]: Finished difference. Result has 40 places, 30 transitions, 68 flow [2022-12-13 11:07:26,248 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=68, PETRI_PLACES=40, PETRI_TRANSITIONS=30} [2022-12-13 11:07:26,250 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -11 predicate places. [2022-12-13 11:07:26,250 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 30 transitions, 68 flow [2022-12-13 11:07:26,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 136.5) internal successors, (273), 2 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:26,251 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:26,251 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:26,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:07:26,251 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 11:07:26,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:26,251 INFO L85 PathProgramCache]: Analyzing trace with hash 901080194, now seen corresponding path program 1 times [2022-12-13 11:07:26,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:07:26,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976823484] [2022-12-13 11:07:26,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:26,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:07:26,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:26,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:26,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:07:26,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976823484] [2022-12-13 11:07:26,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976823484] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:26,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:26,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 11:07:26,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738311723] [2022-12-13 11:07:26,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:26,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:07:26,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:07:26,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:07:26,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:07:26,489 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 286 [2022-12-13 11:07:26,490 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 30 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:26,490 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:26,491 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 286 [2022-12-13 11:07:26,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:27,114 INFO L130 PetriNetUnfolder]: 3975/5687 cut-off events. [2022-12-13 11:07:27,114 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:07:27,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11264 conditions, 5687 events. 3975/5687 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 29770 event pairs, 1089 based on Foata normal form. 0/5254 useless extension candidates. Maximal degree in co-relation 11261. Up to 4303 conditions per place. [2022-12-13 11:07:27,143 INFO L137 encePairwiseOnDemand]: 283/286 looper letters, 37 selfloop transitions, 2 changer transitions 2/45 dead transitions. [2022-12-13 11:07:27,143 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 45 transitions, 182 flow [2022-12-13 11:07:27,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:07:27,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:07:27,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 447 transitions. [2022-12-13 11:07:27,146 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5209790209790209 [2022-12-13 11:07:27,146 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 447 transitions. [2022-12-13 11:07:27,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 447 transitions. [2022-12-13 11:07:27,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:27,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 447 transitions. [2022-12-13 11:07:27,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:27,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:27,152 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:27,152 INFO L175 Difference]: Start difference. First operand has 40 places, 30 transitions, 68 flow. Second operand 3 states and 447 transitions. [2022-12-13 11:07:27,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 45 transitions, 182 flow [2022-12-13 11:07:27,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 45 transitions, 182 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 11:07:27,153 INFO L231 Difference]: Finished difference. Result has 41 places, 28 transitions, 68 flow [2022-12-13 11:07:27,154 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=41, PETRI_TRANSITIONS=28} [2022-12-13 11:07:27,154 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -10 predicate places. [2022-12-13 11:07:27,154 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 28 transitions, 68 flow [2022-12-13 11:07:27,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:27,155 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:27,155 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:27,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 11:07:27,155 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 11:07:27,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:27,156 INFO L85 PathProgramCache]: Analyzing trace with hash -528010189, now seen corresponding path program 1 times [2022-12-13 11:07:27,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:07:27,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406035568] [2022-12-13 11:07:27,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:27,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:07:27,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:27,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:27,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:07:27,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406035568] [2022-12-13 11:07:27,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406035568] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:27,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:27,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 11:07:27,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649668831] [2022-12-13 11:07:27,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:27,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:07:27,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:07:27,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:07:27,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:07:27,379 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 286 [2022-12-13 11:07:27,380 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 28 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:27,380 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:27,380 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 286 [2022-12-13 11:07:27,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:28,541 INFO L130 PetriNetUnfolder]: 11319/15312 cut-off events. [2022-12-13 11:07:28,541 INFO L131 PetriNetUnfolder]: For 772/772 co-relation queries the response was YES. [2022-12-13 11:07:28,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31607 conditions, 15312 events. 11319/15312 cut-off events. For 772/772 co-relation queries the response was YES. Maximal size of possible extension queue 518. Compared 75591 event pairs, 4475 based on Foata normal form. 0/14848 useless extension candidates. Maximal degree in co-relation 31603. Up to 12145 conditions per place. [2022-12-13 11:07:28,589 INFO L137 encePairwiseOnDemand]: 278/286 looper letters, 46 selfloop transitions, 7 changer transitions 0/53 dead transitions. [2022-12-13 11:07:28,589 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 53 transitions, 232 flow [2022-12-13 11:07:28,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:07:28,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:07:28,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 435 transitions. [2022-12-13 11:07:28,591 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.506993006993007 [2022-12-13 11:07:28,591 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 435 transitions. [2022-12-13 11:07:28,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 435 transitions. [2022-12-13 11:07:28,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:28,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 435 transitions. [2022-12-13 11:07:28,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:28,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:28,594 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:28,594 INFO L175 Difference]: Start difference. First operand has 41 places, 28 transitions, 68 flow. Second operand 3 states and 435 transitions. [2022-12-13 11:07:28,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 53 transitions, 232 flow [2022-12-13 11:07:28,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 53 transitions, 226 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 11:07:28,596 INFO L231 Difference]: Finished difference. Result has 42 places, 34 transitions, 118 flow [2022-12-13 11:07:28,596 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=42, PETRI_TRANSITIONS=34} [2022-12-13 11:07:28,596 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -9 predicate places. [2022-12-13 11:07:28,596 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 34 transitions, 118 flow [2022-12-13 11:07:28,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:28,597 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:28,597 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:28,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 11:07:28,597 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 11:07:28,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:28,598 INFO L85 PathProgramCache]: Analyzing trace with hash 811554241, now seen corresponding path program 1 times [2022-12-13 11:07:28,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:07:28,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329745672] [2022-12-13 11:07:28,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:28,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:07:28,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:29,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:29,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:07:29,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329745672] [2022-12-13 11:07:29,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329745672] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:29,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:29,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 11:07:29,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730255298] [2022-12-13 11:07:29,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:29,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 11:07:29,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:07:29,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 11:07:29,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 11:07:29,291 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 286 [2022-12-13 11:07:29,293 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 34 transitions, 118 flow. Second operand has 7 states, 7 states have (on average 120.71428571428571) internal successors, (845), 7 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:29,293 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:29,293 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 286 [2022-12-13 11:07:29,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:30,646 INFO L130 PetriNetUnfolder]: 8162/11838 cut-off events. [2022-12-13 11:07:30,646 INFO L131 PetriNetUnfolder]: For 2615/2627 co-relation queries the response was YES. [2022-12-13 11:07:30,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27135 conditions, 11838 events. 8162/11838 cut-off events. For 2615/2627 co-relation queries the response was YES. Maximal size of possible extension queue 500. Compared 66313 event pairs, 1436 based on Foata normal form. 618/12344 useless extension candidates. Maximal degree in co-relation 27130. Up to 7221 conditions per place. [2022-12-13 11:07:30,682 INFO L137 encePairwiseOnDemand]: 278/286 looper letters, 49 selfloop transitions, 6 changer transitions 16/77 dead transitions. [2022-12-13 11:07:30,682 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 77 transitions, 380 flow [2022-12-13 11:07:30,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 11:07:30,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 11:07:30,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 898 transitions. [2022-12-13 11:07:30,684 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4485514485514486 [2022-12-13 11:07:30,684 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 898 transitions. [2022-12-13 11:07:30,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 898 transitions. [2022-12-13 11:07:30,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:30,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 898 transitions. [2022-12-13 11:07:30,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 128.28571428571428) internal successors, (898), 7 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:30,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 286.0) internal successors, (2288), 8 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:30,689 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 286.0) internal successors, (2288), 8 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:30,689 INFO L175 Difference]: Start difference. First operand has 42 places, 34 transitions, 118 flow. Second operand 7 states and 898 transitions. [2022-12-13 11:07:30,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 77 transitions, 380 flow [2022-12-13 11:07:30,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 77 transitions, 354 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 11:07:30,713 INFO L231 Difference]: Finished difference. Result has 48 places, 33 transitions, 121 flow [2022-12-13 11:07:30,713 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=121, PETRI_PLACES=48, PETRI_TRANSITIONS=33} [2022-12-13 11:07:30,713 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -3 predicate places. [2022-12-13 11:07:30,713 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 33 transitions, 121 flow [2022-12-13 11:07:30,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 120.71428571428571) internal successors, (845), 7 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:30,714 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:30,714 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:30,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 11:07:30,714 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 11:07:30,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:30,714 INFO L85 PathProgramCache]: Analyzing trace with hash -614677672, now seen corresponding path program 1 times [2022-12-13 11:07:30,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:07:30,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765489691] [2022-12-13 11:07:30,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:30,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:07:30,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:30,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:30,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:07:30,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765489691] [2022-12-13 11:07:30,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765489691] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:30,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:30,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:07:30,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988481931] [2022-12-13 11:07:30,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:30,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:07:30,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:07:30,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:07:30,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:07:30,880 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 286 [2022-12-13 11:07:30,880 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 33 transitions, 121 flow. Second operand has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:30,881 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:30,881 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 286 [2022-12-13 11:07:30,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:31,490 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([424] L834-->L841: Formula: (let ((.cse3 (not (= (mod v_~y$r_buff1_thd4~0_20 256) 0))) (.cse4 (not (= (mod v_~y$w_buff0_used~0_119 256) 0))) (.cse5 (not (= 0 (mod v_~y$r_buff0_thd4~0_22 256))))) (let ((.cse0 (and .cse5 (not (= (mod v_~y$w_buff0_used~0_120 256) 0)))) (.cse2 (and .cse4 .cse5)) (.cse1 (and (not (= (mod v_~y$w_buff1_used~0_105 256) 0)) .cse3))) (and (= (ite .cse0 v_~y$w_buff0~0_50 (ite .cse1 v_~y$w_buff1~0_39 v_~y~0_71)) v_~y~0_70) (= v_~y$r_buff0_thd4~0_21 (ite .cse2 0 v_~y$r_buff0_thd4~0_22)) (= (ite (or (and (not (= (mod v_~y$w_buff1_used~0_104 256) 0)) .cse3) (and .cse4 (not (= (mod v_~y$r_buff0_thd4~0_21 256) 0)))) 0 v_~y$r_buff1_thd4~0_20) v_~y$r_buff1_thd4~0_19) (= v_~y$w_buff0_used~0_119 (ite .cse0 0 v_~y$w_buff0_used~0_120)) (= (ite (or .cse2 .cse1) 0 v_~y$w_buff1_used~0_105) v_~y$w_buff1_used~0_104)))) InVars {~y$r_buff0_thd4~0=v_~y$r_buff0_thd4~0_22, ~y$r_buff1_thd4~0=v_~y$r_buff1_thd4~0_20, ~y$w_buff0_used~0=v_~y$w_buff0_used~0_120, ~y$w_buff1~0=v_~y$w_buff1~0_39, ~y$w_buff0~0=v_~y$w_buff0~0_50, ~y~0=v_~y~0_71, ~y$w_buff1_used~0=v_~y$w_buff1_used~0_105} OutVars{~y$r_buff0_thd4~0=v_~y$r_buff0_thd4~0_21, ~y$r_buff1_thd4~0=v_~y$r_buff1_thd4~0_19, ~y$w_buff0_used~0=v_~y$w_buff0_used~0_119, ~y$w_buff1~0=v_~y$w_buff1~0_39, ~y$w_buff0~0=v_~y$w_buff0~0_50, ~y~0=v_~y~0_70, ~y$w_buff1_used~0=v_~y$w_buff1_used~0_104} AuxVars[] AssignedVars[~y$r_buff0_thd4~0, ~y$r_buff1_thd4~0, ~y$w_buff0_used~0, ~y~0, ~y$w_buff1_used~0][63], [P3Thread1of1ForFork2InUse, 111#L876true, 186#true, Black: 172#(or (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0))), 119#L811true, 69#L786true, Black: 182#(= |ULTIMATE.start_main_old_#valid#1| (store |#valid| |ULTIMATE.start_main_~#t440~0#1.base| 0)), 31#L841true, 128#P0EXITtrue, Black: 181#(and (not (= ~__unbuffered_p3_EAX~0 1)) (not (= |ULTIMATE.start_main_~#t440~0#1.base| |ULTIMATE.start_main_~#t438~0#1.base|)) (not (= |ULTIMATE.start_main_~#t440~0#1.base| |ULTIMATE.start_main_~#t439~0#1.base|)) (not (= |ULTIMATE.start_main_~#t439~0#1.base| |ULTIMATE.start_main_~#t437~0#1.base|)) (not (= |ULTIMATE.start_main_~#t438~0#1.base| |ULTIMATE.start_main_~#t437~0#1.base|)) (not (= |ULTIMATE.start_main_~#t440~0#1.base| |ULTIMATE.start_main_~#t437~0#1.base|)) (not (= |ULTIMATE.start_main_~#t439~0#1.base| |ULTIMATE.start_main_~#t438~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t437~0#1.base| 0) |ULTIMATE.start_main_~#t438~0#1.base| 0) |ULTIMATE.start_main_~#t440~0#1.base| 0) |ULTIMATE.start_main_~#t439~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|)), P1Thread1of1ForFork1InUse, 176#true, P2Thread1of1ForFork0InUse, 163#true, P0Thread1of1ForFork3InUse]) [2022-12-13 11:07:31,490 INFO L383 tUnfolder$Statistics]: this new event has 21 ancestors and is cut-off event [2022-12-13 11:07:31,490 INFO L386 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2022-12-13 11:07:31,490 INFO L386 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2022-12-13 11:07:31,490 INFO L386 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2022-12-13 11:07:31,491 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([551] L876-->ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_17| |v_ULTIMATE.start___VERIFIER_assert_~expression#1_27|) (= v_~main$tmp_guard1~0_16 (ite (= (ite (not (and (= v_~__unbuffered_p3_EAX~0_14 1) (= v_~__unbuffered_p1_EAX~0_24 0) (= 0 v_~__unbuffered_p3_EBX~0_16) (= v_~__unbuffered_p2_EAX~0_16 0) (= v_~__unbuffered_p0_EAX~0_16 0))) 1 0) 0) 0 1)) (= (mod v_~main$tmp_guard1~0_16 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_17|) (= |v_ULTIMATE.start___VERIFIER_assert_~expression#1_27| 0)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_16, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_24, ~__unbuffered_p3_EAX~0=v_~__unbuffered_p3_EAX~0_14, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_16, ~__unbuffered_p3_EBX~0=v_~__unbuffered_p3_EBX~0_16} OutVars{ULTIMATE.start___VERIFIER_assert_~expression#1=|v_ULTIMATE.start___VERIFIER_assert_~expression#1_27|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_16, ULTIMATE.start___VERIFIER_assert_#in~expression#1=|v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_17|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_24, ~__unbuffered_p3_EAX~0=v_~__unbuffered_p3_EAX~0_14, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_16, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_16, ~__unbuffered_p3_EBX~0=v_~__unbuffered_p3_EBX~0_16} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression#1, ULTIMATE.start___VERIFIER_assert_#in~expression#1, ~main$tmp_guard1~0][66], [P3Thread1of1ForFork2InUse, 72#ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAKtrue, 99#L834true, 186#true, Black: 172#(or (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0))), 119#L811true, 69#L786true, Black: 182#(= |ULTIMATE.start_main_old_#valid#1| (store |#valid| |ULTIMATE.start_main_~#t440~0#1.base| 0)), 128#P0EXITtrue, Black: 181#(and (not (= ~__unbuffered_p3_EAX~0 1)) (not (= |ULTIMATE.start_main_~#t440~0#1.base| |ULTIMATE.start_main_~#t438~0#1.base|)) (not (= |ULTIMATE.start_main_~#t440~0#1.base| |ULTIMATE.start_main_~#t439~0#1.base|)) (not (= |ULTIMATE.start_main_~#t439~0#1.base| |ULTIMATE.start_main_~#t437~0#1.base|)) (not (= |ULTIMATE.start_main_~#t438~0#1.base| |ULTIMATE.start_main_~#t437~0#1.base|)) (not (= |ULTIMATE.start_main_~#t440~0#1.base| |ULTIMATE.start_main_~#t437~0#1.base|)) (not (= |ULTIMATE.start_main_~#t439~0#1.base| |ULTIMATE.start_main_~#t438~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t437~0#1.base| 0) |ULTIMATE.start_main_~#t438~0#1.base| 0) |ULTIMATE.start_main_~#t440~0#1.base| 0) |ULTIMATE.start_main_~#t439~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|)), P1Thread1of1ForFork1InUse, 176#true, P2Thread1of1ForFork0InUse, 163#true, P0Thread1of1ForFork3InUse]) [2022-12-13 11:07:31,491 INFO L383 tUnfolder$Statistics]: this new event has 21 ancestors and is cut-off event [2022-12-13 11:07:31,491 INFO L386 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2022-12-13 11:07:31,491 INFO L386 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2022-12-13 11:07:31,491 INFO L386 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2022-12-13 11:07:31,561 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([564] L876-->L862-3: Formula: (and (= (mod v_~main$tmp_guard1~0_24 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_23|) (not (= |v_ULTIMATE.start___VERIFIER_assert_~expression#1_37| 0)) (= (ite (= (ite (not (and (= v_~__unbuffered_p1_EAX~0_30 0) (= v_~__unbuffered_p3_EAX~0_20 1) (= v_~__unbuffered_p0_EAX~0_22 0) (= 0 v_~__unbuffered_p3_EBX~0_22) (= v_~__unbuffered_p2_EAX~0_22 0))) 1 0) 0) 0 1) v_~main$tmp_guard1~0_24) (= |v_#valid_202| (store (store (store |v_#valid_204| |v_ULTIMATE.start_main_~#t437~0#1.base_39| 0) |v_ULTIMATE.start_main_~#t438~0#1.base_49| 0) |v_ULTIMATE.start_main_~#t439~0#1.base_50| 0)) (= |v_ULTIMATE.start_main_#res#1_32| 0) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_23| |v_ULTIMATE.start___VERIFIER_assert_~expression#1_37|)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_22, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_30, ULTIMATE.start_main_~#t439~0#1.base=|v_ULTIMATE.start_main_~#t439~0#1.base_50|, #valid=|v_#valid_204|, ULTIMATE.start_main_~#t438~0#1.base=|v_ULTIMATE.start_main_~#t438~0#1.base_49|, ULTIMATE.start_main_~#t437~0#1.base=|v_ULTIMATE.start_main_~#t437~0#1.base_39|, ~__unbuffered_p3_EAX~0=v_~__unbuffered_p3_EAX~0_20, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_22, ~__unbuffered_p3_EBX~0=v_~__unbuffered_p3_EBX~0_22} OutVars{ULTIMATE.start___VERIFIER_assert_~expression#1=|v_ULTIMATE.start___VERIFIER_assert_~expression#1_37|, ULTIMATE.start_main_~#t439~0#1.base=|v_ULTIMATE.start_main_~#t439~0#1.base_50|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_32|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_24, ~__unbuffered_p3_EBX~0=v_~__unbuffered_p3_EBX~0_22, ULTIMATE.start_main_~#t438~0#1.offset=|v_ULTIMATE.start_main_~#t438~0#1.offset_39|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_22, ULTIMATE.start___VERIFIER_assert_#in~expression#1=|v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_23|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_30, ULTIMATE.start_main_~#t437~0#1.offset=|v_ULTIMATE.start_main_~#t437~0#1.offset_27|, #valid=|v_#valid_202|, ~__unbuffered_p3_EAX~0=v_~__unbuffered_p3_EAX~0_20, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_22} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t438~0#1.offset, ULTIMATE.start___VERIFIER_assert_~expression#1, ULTIMATE.start___VERIFIER_assert_#in~expression#1, ULTIMATE.start_main_~#t437~0#1.offset, ULTIMATE.start_main_#res#1, #valid, ULTIMATE.start_main_~#t438~0#1.base, ULTIMATE.start_main_~#t437~0#1.base, ~main$tmp_guard1~0][65], [P3Thread1of1ForFork2InUse, 99#L834true, 186#true, 87#L862-3true, Black: 170#true, 119#L811true, 69#L786true, Black: 182#(= |ULTIMATE.start_main_old_#valid#1| (store |#valid| |ULTIMATE.start_main_~#t440~0#1.base| 0)), Black: 181#(and (not (= ~__unbuffered_p3_EAX~0 1)) (not (= |ULTIMATE.start_main_~#t440~0#1.base| |ULTIMATE.start_main_~#t438~0#1.base|)) (not (= |ULTIMATE.start_main_~#t440~0#1.base| |ULTIMATE.start_main_~#t439~0#1.base|)) (not (= |ULTIMATE.start_main_~#t439~0#1.base| |ULTIMATE.start_main_~#t437~0#1.base|)) (not (= |ULTIMATE.start_main_~#t438~0#1.base| |ULTIMATE.start_main_~#t437~0#1.base|)) (not (= |ULTIMATE.start_main_~#t440~0#1.base| |ULTIMATE.start_main_~#t437~0#1.base|)) (not (= |ULTIMATE.start_main_~#t439~0#1.base| |ULTIMATE.start_main_~#t438~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t437~0#1.base| 0) |ULTIMATE.start_main_~#t438~0#1.base| 0) |ULTIMATE.start_main_~#t440~0#1.base| 0) |ULTIMATE.start_main_~#t439~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|)), 128#P0EXITtrue, P1Thread1of1ForFork1InUse, 176#true, P2Thread1of1ForFork0InUse, 163#true, P0Thread1of1ForFork3InUse]) [2022-12-13 11:07:31,561 INFO L383 tUnfolder$Statistics]: this new event has 21 ancestors and is not cut-off event [2022-12-13 11:07:31,562 INFO L386 tUnfolder$Statistics]: existing Event has 21 ancestors and is not cut-off event [2022-12-13 11:07:31,562 INFO L386 tUnfolder$Statistics]: existing Event has 21 ancestors and is not cut-off event [2022-12-13 11:07:31,562 INFO L386 tUnfolder$Statistics]: existing Event has 21 ancestors and is not cut-off event [2022-12-13 11:07:31,568 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([424] L834-->L841: Formula: (let ((.cse3 (not (= (mod v_~y$r_buff1_thd4~0_20 256) 0))) (.cse4 (not (= (mod v_~y$w_buff0_used~0_119 256) 0))) (.cse5 (not (= 0 (mod v_~y$r_buff0_thd4~0_22 256))))) (let ((.cse0 (and .cse5 (not (= (mod v_~y$w_buff0_used~0_120 256) 0)))) (.cse2 (and .cse4 .cse5)) (.cse1 (and (not (= (mod v_~y$w_buff1_used~0_105 256) 0)) .cse3))) (and (= (ite .cse0 v_~y$w_buff0~0_50 (ite .cse1 v_~y$w_buff1~0_39 v_~y~0_71)) v_~y~0_70) (= v_~y$r_buff0_thd4~0_21 (ite .cse2 0 v_~y$r_buff0_thd4~0_22)) (= (ite (or (and (not (= (mod v_~y$w_buff1_used~0_104 256) 0)) .cse3) (and .cse4 (not (= (mod v_~y$r_buff0_thd4~0_21 256) 0)))) 0 v_~y$r_buff1_thd4~0_20) v_~y$r_buff1_thd4~0_19) (= v_~y$w_buff0_used~0_119 (ite .cse0 0 v_~y$w_buff0_used~0_120)) (= (ite (or .cse2 .cse1) 0 v_~y$w_buff1_used~0_105) v_~y$w_buff1_used~0_104)))) InVars {~y$r_buff0_thd4~0=v_~y$r_buff0_thd4~0_22, ~y$r_buff1_thd4~0=v_~y$r_buff1_thd4~0_20, ~y$w_buff0_used~0=v_~y$w_buff0_used~0_120, ~y$w_buff1~0=v_~y$w_buff1~0_39, ~y$w_buff0~0=v_~y$w_buff0~0_50, ~y~0=v_~y~0_71, ~y$w_buff1_used~0=v_~y$w_buff1_used~0_105} OutVars{~y$r_buff0_thd4~0=v_~y$r_buff0_thd4~0_21, ~y$r_buff1_thd4~0=v_~y$r_buff1_thd4~0_19, ~y$w_buff0_used~0=v_~y$w_buff0_used~0_119, ~y$w_buff1~0=v_~y$w_buff1~0_39, ~y$w_buff0~0=v_~y$w_buff0~0_50, ~y~0=v_~y~0_70, ~y$w_buff1_used~0=v_~y$w_buff1_used~0_104} AuxVars[] AssignedVars[~y$r_buff0_thd4~0, ~y$r_buff1_thd4~0, ~y$w_buff0_used~0, ~y~0, ~y$w_buff1_used~0][63], [P3Thread1of1ForFork2InUse, 111#L876true, 186#true, Black: 172#(or (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0))), 119#L811true, 112#P1EXITtrue, Black: 182#(= |ULTIMATE.start_main_old_#valid#1| (store |#valid| |ULTIMATE.start_main_~#t440~0#1.base| 0)), 128#P0EXITtrue, Black: 181#(and (not (= ~__unbuffered_p3_EAX~0 1)) (not (= |ULTIMATE.start_main_~#t440~0#1.base| |ULTIMATE.start_main_~#t438~0#1.base|)) (not (= |ULTIMATE.start_main_~#t440~0#1.base| |ULTIMATE.start_main_~#t439~0#1.base|)) (not (= |ULTIMATE.start_main_~#t439~0#1.base| |ULTIMATE.start_main_~#t437~0#1.base|)) (not (= |ULTIMATE.start_main_~#t438~0#1.base| |ULTIMATE.start_main_~#t437~0#1.base|)) (not (= |ULTIMATE.start_main_~#t440~0#1.base| |ULTIMATE.start_main_~#t437~0#1.base|)) (not (= |ULTIMATE.start_main_~#t439~0#1.base| |ULTIMATE.start_main_~#t438~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t437~0#1.base| 0) |ULTIMATE.start_main_~#t438~0#1.base| 0) |ULTIMATE.start_main_~#t440~0#1.base| 0) |ULTIMATE.start_main_~#t439~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|)), 31#L841true, P1Thread1of1ForFork1InUse, 176#true, P2Thread1of1ForFork0InUse, 163#true, P0Thread1of1ForFork3InUse]) [2022-12-13 11:07:31,568 INFO L383 tUnfolder$Statistics]: this new event has 22 ancestors and is cut-off event [2022-12-13 11:07:31,568 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2022-12-13 11:07:31,568 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2022-12-13 11:07:31,568 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2022-12-13 11:07:31,568 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([551] L876-->ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_17| |v_ULTIMATE.start___VERIFIER_assert_~expression#1_27|) (= v_~main$tmp_guard1~0_16 (ite (= (ite (not (and (= v_~__unbuffered_p3_EAX~0_14 1) (= v_~__unbuffered_p1_EAX~0_24 0) (= 0 v_~__unbuffered_p3_EBX~0_16) (= v_~__unbuffered_p2_EAX~0_16 0) (= v_~__unbuffered_p0_EAX~0_16 0))) 1 0) 0) 0 1)) (= (mod v_~main$tmp_guard1~0_16 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_17|) (= |v_ULTIMATE.start___VERIFIER_assert_~expression#1_27| 0)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_16, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_24, ~__unbuffered_p3_EAX~0=v_~__unbuffered_p3_EAX~0_14, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_16, ~__unbuffered_p3_EBX~0=v_~__unbuffered_p3_EBX~0_16} OutVars{ULTIMATE.start___VERIFIER_assert_~expression#1=|v_ULTIMATE.start___VERIFIER_assert_~expression#1_27|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_16, ULTIMATE.start___VERIFIER_assert_#in~expression#1=|v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_17|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_24, ~__unbuffered_p3_EAX~0=v_~__unbuffered_p3_EAX~0_14, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_16, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_16, ~__unbuffered_p3_EBX~0=v_~__unbuffered_p3_EBX~0_16} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression#1, ULTIMATE.start___VERIFIER_assert_#in~expression#1, ~main$tmp_guard1~0][66], [72#ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAKtrue, P3Thread1of1ForFork2InUse, 99#L834true, 186#true, Black: 172#(or (not (= ~__unbuffered_p1_EAX~0 0)) (not (= ~__unbuffered_p3_EAX~0 1)) (not (= ~__unbuffered_p3_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 0)) (not (= ~__unbuffered_p0_EAX~0 0))), 119#L811true, 112#P1EXITtrue, Black: 182#(= |ULTIMATE.start_main_old_#valid#1| (store |#valid| |ULTIMATE.start_main_~#t440~0#1.base| 0)), Black: 181#(and (not (= ~__unbuffered_p3_EAX~0 1)) (not (= |ULTIMATE.start_main_~#t440~0#1.base| |ULTIMATE.start_main_~#t438~0#1.base|)) (not (= |ULTIMATE.start_main_~#t440~0#1.base| |ULTIMATE.start_main_~#t439~0#1.base|)) (not (= |ULTIMATE.start_main_~#t439~0#1.base| |ULTIMATE.start_main_~#t437~0#1.base|)) (not (= |ULTIMATE.start_main_~#t438~0#1.base| |ULTIMATE.start_main_~#t437~0#1.base|)) (not (= |ULTIMATE.start_main_~#t440~0#1.base| |ULTIMATE.start_main_~#t437~0#1.base|)) (not (= |ULTIMATE.start_main_~#t439~0#1.base| |ULTIMATE.start_main_~#t438~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t437~0#1.base| 0) |ULTIMATE.start_main_~#t438~0#1.base| 0) |ULTIMATE.start_main_~#t440~0#1.base| 0) |ULTIMATE.start_main_~#t439~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|)), 128#P0EXITtrue, P1Thread1of1ForFork1InUse, 176#true, P2Thread1of1ForFork0InUse, 163#true, P0Thread1of1ForFork3InUse]) [2022-12-13 11:07:31,569 INFO L383 tUnfolder$Statistics]: this new event has 22 ancestors and is cut-off event [2022-12-13 11:07:31,569 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2022-12-13 11:07:31,569 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2022-12-13 11:07:31,569 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2022-12-13 11:07:31,637 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([564] L876-->L862-3: Formula: (and (= (mod v_~main$tmp_guard1~0_24 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_23|) (not (= |v_ULTIMATE.start___VERIFIER_assert_~expression#1_37| 0)) (= (ite (= (ite (not (and (= v_~__unbuffered_p1_EAX~0_30 0) (= v_~__unbuffered_p3_EAX~0_20 1) (= v_~__unbuffered_p0_EAX~0_22 0) (= 0 v_~__unbuffered_p3_EBX~0_22) (= v_~__unbuffered_p2_EAX~0_22 0))) 1 0) 0) 0 1) v_~main$tmp_guard1~0_24) (= |v_#valid_202| (store (store (store |v_#valid_204| |v_ULTIMATE.start_main_~#t437~0#1.base_39| 0) |v_ULTIMATE.start_main_~#t438~0#1.base_49| 0) |v_ULTIMATE.start_main_~#t439~0#1.base_50| 0)) (= |v_ULTIMATE.start_main_#res#1_32| 0) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_23| |v_ULTIMATE.start___VERIFIER_assert_~expression#1_37|)) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_22, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_30, ULTIMATE.start_main_~#t439~0#1.base=|v_ULTIMATE.start_main_~#t439~0#1.base_50|, #valid=|v_#valid_204|, ULTIMATE.start_main_~#t438~0#1.base=|v_ULTIMATE.start_main_~#t438~0#1.base_49|, ULTIMATE.start_main_~#t437~0#1.base=|v_ULTIMATE.start_main_~#t437~0#1.base_39|, ~__unbuffered_p3_EAX~0=v_~__unbuffered_p3_EAX~0_20, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_22, ~__unbuffered_p3_EBX~0=v_~__unbuffered_p3_EBX~0_22} OutVars{ULTIMATE.start___VERIFIER_assert_~expression#1=|v_ULTIMATE.start___VERIFIER_assert_~expression#1_37|, ULTIMATE.start_main_~#t439~0#1.base=|v_ULTIMATE.start_main_~#t439~0#1.base_50|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_32|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_24, ~__unbuffered_p3_EBX~0=v_~__unbuffered_p3_EBX~0_22, ULTIMATE.start_main_~#t438~0#1.offset=|v_ULTIMATE.start_main_~#t438~0#1.offset_39|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_22, ULTIMATE.start___VERIFIER_assert_#in~expression#1=|v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_23|, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_30, ULTIMATE.start_main_~#t437~0#1.offset=|v_ULTIMATE.start_main_~#t437~0#1.offset_27|, #valid=|v_#valid_202|, ~__unbuffered_p3_EAX~0=v_~__unbuffered_p3_EAX~0_20, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_22} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t438~0#1.offset, ULTIMATE.start___VERIFIER_assert_~expression#1, ULTIMATE.start___VERIFIER_assert_#in~expression#1, ULTIMATE.start_main_~#t437~0#1.offset, ULTIMATE.start_main_#res#1, #valid, ULTIMATE.start_main_~#t438~0#1.base, ULTIMATE.start_main_~#t437~0#1.base, ~main$tmp_guard1~0][65], [P3Thread1of1ForFork2InUse, 99#L834true, 186#true, 87#L862-3true, Black: 170#true, 119#L811true, 112#P1EXITtrue, Black: 182#(= |ULTIMATE.start_main_old_#valid#1| (store |#valid| |ULTIMATE.start_main_~#t440~0#1.base| 0)), 128#P0EXITtrue, Black: 181#(and (not (= ~__unbuffered_p3_EAX~0 1)) (not (= |ULTIMATE.start_main_~#t440~0#1.base| |ULTIMATE.start_main_~#t438~0#1.base|)) (not (= |ULTIMATE.start_main_~#t440~0#1.base| |ULTIMATE.start_main_~#t439~0#1.base|)) (not (= |ULTIMATE.start_main_~#t439~0#1.base| |ULTIMATE.start_main_~#t437~0#1.base|)) (not (= |ULTIMATE.start_main_~#t438~0#1.base| |ULTIMATE.start_main_~#t437~0#1.base|)) (not (= |ULTIMATE.start_main_~#t440~0#1.base| |ULTIMATE.start_main_~#t437~0#1.base|)) (not (= |ULTIMATE.start_main_~#t439~0#1.base| |ULTIMATE.start_main_~#t438~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t437~0#1.base| 0) |ULTIMATE.start_main_~#t438~0#1.base| 0) |ULTIMATE.start_main_~#t440~0#1.base| 0) |ULTIMATE.start_main_~#t439~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|)), P1Thread1of1ForFork1InUse, 176#true, P2Thread1of1ForFork0InUse, 163#true, P0Thread1of1ForFork3InUse]) [2022-12-13 11:07:31,637 INFO L383 tUnfolder$Statistics]: this new event has 22 ancestors and is not cut-off event [2022-12-13 11:07:31,637 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is not cut-off event [2022-12-13 11:07:31,637 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is not cut-off event [2022-12-13 11:07:31,637 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is not cut-off event [2022-12-13 11:07:31,712 INFO L130 PetriNetUnfolder]: 5035/7482 cut-off events. [2022-12-13 11:07:31,712 INFO L131 PetriNetUnfolder]: For 1349/1422 co-relation queries the response was YES. [2022-12-13 11:07:31,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17293 conditions, 7482 events. 5035/7482 cut-off events. For 1349/1422 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 42942 event pairs, 1048 based on Foata normal form. 403/7318 useless extension candidates. Maximal degree in co-relation 17286. Up to 5446 conditions per place. [2022-12-13 11:07:31,735 INFO L137 encePairwiseOnDemand]: 279/286 looper letters, 57 selfloop transitions, 10 changer transitions 0/75 dead transitions. [2022-12-13 11:07:31,735 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 75 transitions, 362 flow [2022-12-13 11:07:31,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:07:31,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 11:07:31,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 716 transitions. [2022-12-13 11:07:31,736 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5006993006993007 [2022-12-13 11:07:31,736 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 716 transitions. [2022-12-13 11:07:31,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 716 transitions. [2022-12-13 11:07:31,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:31,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 716 transitions. [2022-12-13 11:07:31,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 143.2) internal successors, (716), 5 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:31,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 286.0) internal successors, (1716), 6 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:31,740 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 286.0) internal successors, (1716), 6 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:31,740 INFO L175 Difference]: Start difference. First operand has 48 places, 33 transitions, 121 flow. Second operand 5 states and 716 transitions. [2022-12-13 11:07:31,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 75 transitions, 362 flow [2022-12-13 11:07:31,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 75 transitions, 342 flow, removed 1 selfloop flow, removed 6 redundant places. [2022-12-13 11:07:31,751 INFO L231 Difference]: Finished difference. Result has 48 places, 42 transitions, 182 flow [2022-12-13 11:07:31,751 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=182, PETRI_PLACES=48, PETRI_TRANSITIONS=42} [2022-12-13 11:07:31,752 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -3 predicate places. [2022-12-13 11:07:31,752 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 42 transitions, 182 flow [2022-12-13 11:07:31,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:31,752 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:31,752 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:31,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 11:07:31,752 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 11:07:31,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:31,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1460646890, now seen corresponding path program 1 times [2022-12-13 11:07:31,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:07:31,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972159514] [2022-12-13 11:07:31,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:31,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:07:31,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:31,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:31,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:07:31,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972159514] [2022-12-13 11:07:31,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972159514] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:31,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:31,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:07:31,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831876446] [2022-12-13 11:07:31,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:31,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:07:31,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:07:31,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:07:31,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:07:31,940 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 286 [2022-12-13 11:07:31,941 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 42 transitions, 182 flow. Second operand has 5 states, 5 states have (on average 132.8) internal successors, (664), 5 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:31,941 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:31,941 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 286 [2022-12-13 11:07:31,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:32,505 INFO L130 PetriNetUnfolder]: 3113/4860 cut-off events. [2022-12-13 11:07:32,505 INFO L131 PetriNetUnfolder]: For 2709/2760 co-relation queries the response was YES. [2022-12-13 11:07:32,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14195 conditions, 4860 events. 3113/4860 cut-off events. For 2709/2760 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 27895 event pairs, 417 based on Foata normal form. 272/4881 useless extension candidates. Maximal degree in co-relation 14186. Up to 1650 conditions per place. [2022-12-13 11:07:32,521 INFO L137 encePairwiseOnDemand]: 279/286 looper letters, 75 selfloop transitions, 19 changer transitions 0/102 dead transitions. [2022-12-13 11:07:32,521 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 102 transitions, 566 flow [2022-12-13 11:07:32,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 11:07:32,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 11:07:32,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1003 transitions. [2022-12-13 11:07:32,523 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.500999000999001 [2022-12-13 11:07:32,523 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1003 transitions. [2022-12-13 11:07:32,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1003 transitions. [2022-12-13 11:07:32,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:32,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1003 transitions. [2022-12-13 11:07:32,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 143.28571428571428) internal successors, (1003), 7 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:32,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 286.0) internal successors, (2288), 8 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:32,527 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 286.0) internal successors, (2288), 8 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:32,527 INFO L175 Difference]: Start difference. First operand has 48 places, 42 transitions, 182 flow. Second operand 7 states and 1003 transitions. [2022-12-13 11:07:32,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 102 transitions, 566 flow [2022-12-13 11:07:32,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 102 transitions, 561 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:07:32,535 INFO L231 Difference]: Finished difference. Result has 56 places, 51 transitions, 311 flow [2022-12-13 11:07:32,535 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=311, PETRI_PLACES=56, PETRI_TRANSITIONS=51} [2022-12-13 11:07:32,535 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, 5 predicate places. [2022-12-13 11:07:32,536 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 51 transitions, 311 flow [2022-12-13 11:07:32,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 132.8) internal successors, (664), 5 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:32,536 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:32,536 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:32,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 11:07:32,536 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 11:07:32,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:32,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1406327132, now seen corresponding path program 1 times [2022-12-13 11:07:32,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:07:32,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172748559] [2022-12-13 11:07:32,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:32,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:07:32,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:32,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:32,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:07:32,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172748559] [2022-12-13 11:07:32,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172748559] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:32,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:32,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:07:32,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912570178] [2022-12-13 11:07:32,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:32,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:07:32,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:07:32,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:07:32,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:07:32,680 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 286 [2022-12-13 11:07:32,681 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 51 transitions, 311 flow. Second operand has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:32,681 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:32,681 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 286 [2022-12-13 11:07:32,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:33,538 INFO L130 PetriNetUnfolder]: 5842/8734 cut-off events. [2022-12-13 11:07:33,538 INFO L131 PetriNetUnfolder]: For 17961/17961 co-relation queries the response was YES. [2022-12-13 11:07:33,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31597 conditions, 8734 events. 5842/8734 cut-off events. For 17961/17961 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 48230 event pairs, 770 based on Foata normal form. 0/8657 useless extension candidates. Maximal degree in co-relation 31585. Up to 4485 conditions per place. [2022-12-13 11:07:33,564 INFO L137 encePairwiseOnDemand]: 277/286 looper letters, 118 selfloop transitions, 15 changer transitions 30/163 dead transitions. [2022-12-13 11:07:33,564 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 163 transitions, 1289 flow [2022-12-13 11:07:33,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:07:33,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 11:07:33,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 861 transitions. [2022-12-13 11:07:33,566 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5017482517482518 [2022-12-13 11:07:33,566 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 861 transitions. [2022-12-13 11:07:33,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 861 transitions. [2022-12-13 11:07:33,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:33,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 861 transitions. [2022-12-13 11:07:33,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:33,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:33,569 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:33,569 INFO L175 Difference]: Start difference. First operand has 56 places, 51 transitions, 311 flow. Second operand 6 states and 861 transitions. [2022-12-13 11:07:33,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 163 transitions, 1289 flow [2022-12-13 11:07:33,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 163 transitions, 1150 flow, removed 47 selfloop flow, removed 3 redundant places. [2022-12-13 11:07:33,713 INFO L231 Difference]: Finished difference. Result has 61 places, 52 transitions, 298 flow [2022-12-13 11:07:33,714 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=298, PETRI_PLACES=61, PETRI_TRANSITIONS=52} [2022-12-13 11:07:33,714 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, 10 predicate places. [2022-12-13 11:07:33,714 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 52 transitions, 298 flow [2022-12-13 11:07:33,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:33,715 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:33,715 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:33,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 11:07:33,715 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 11:07:33,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:33,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1058377265, now seen corresponding path program 1 times [2022-12-13 11:07:33,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:07:33,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601399991] [2022-12-13 11:07:33,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:33,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:07:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:33,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:33,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:07:33,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601399991] [2022-12-13 11:07:33,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601399991] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:33,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:33,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 11:07:33,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542736995] [2022-12-13 11:07:33,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:33,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:07:33,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:07:33,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:07:33,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:07:33,921 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 286 [2022-12-13 11:07:33,922 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 52 transitions, 298 flow. Second operand has 6 states, 6 states have (on average 132.83333333333334) internal successors, (797), 6 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:33,923 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:33,923 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 286 [2022-12-13 11:07:33,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:34,448 INFO L130 PetriNetUnfolder]: 1770/2892 cut-off events. [2022-12-13 11:07:34,448 INFO L131 PetriNetUnfolder]: For 4349/4407 co-relation queries the response was YES. [2022-12-13 11:07:34,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9230 conditions, 2892 events. 1770/2892 cut-off events. For 4349/4407 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 15660 event pairs, 316 based on Foata normal form. 193/2976 useless extension candidates. Maximal degree in co-relation 9215. Up to 891 conditions per place. [2022-12-13 11:07:34,458 INFO L137 encePairwiseOnDemand]: 279/286 looper letters, 73 selfloop transitions, 18 changer transitions 8/113 dead transitions. [2022-12-13 11:07:34,458 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 113 transitions, 763 flow [2022-12-13 11:07:34,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 11:07:34,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 11:07:34,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1004 transitions. [2022-12-13 11:07:34,461 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5014985014985015 [2022-12-13 11:07:34,461 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1004 transitions. [2022-12-13 11:07:34,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1004 transitions. [2022-12-13 11:07:34,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:34,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1004 transitions. [2022-12-13 11:07:34,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 143.42857142857142) internal successors, (1004), 7 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:34,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 286.0) internal successors, (2288), 8 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:34,464 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 286.0) internal successors, (2288), 8 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:34,465 INFO L175 Difference]: Start difference. First operand has 61 places, 52 transitions, 298 flow. Second operand 7 states and 1004 transitions. [2022-12-13 11:07:34,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 113 transitions, 763 flow [2022-12-13 11:07:34,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 113 transitions, 725 flow, removed 19 selfloop flow, removed 3 redundant places. [2022-12-13 11:07:34,471 INFO L231 Difference]: Finished difference. Result has 63 places, 60 transitions, 416 flow [2022-12-13 11:07:34,471 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=416, PETRI_PLACES=63, PETRI_TRANSITIONS=60} [2022-12-13 11:07:34,472 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, 12 predicate places. [2022-12-13 11:07:34,472 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 60 transitions, 416 flow [2022-12-13 11:07:34,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.83333333333334) internal successors, (797), 6 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:34,473 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:34,473 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:34,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 11:07:34,473 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 11:07:34,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:34,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1889735319, now seen corresponding path program 1 times [2022-12-13 11:07:34,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:07:34,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358522325] [2022-12-13 11:07:34,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:34,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:07:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:34,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:34,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:07:34,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358522325] [2022-12-13 11:07:34,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358522325] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:34,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:34,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:07:34,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745970153] [2022-12-13 11:07:34,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:34,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:07:34,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:07:34,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:07:34,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:07:34,672 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 286 [2022-12-13 11:07:34,673 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 60 transitions, 416 flow. Second operand has 4 states, 4 states have (on average 130.5) internal successors, (522), 4 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:34,673 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:34,673 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 286 [2022-12-13 11:07:34,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:35,218 INFO L130 PetriNetUnfolder]: 2961/4616 cut-off events. [2022-12-13 11:07:35,218 INFO L131 PetriNetUnfolder]: For 10329/10329 co-relation queries the response was YES. [2022-12-13 11:07:35,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17262 conditions, 4616 events. 2961/4616 cut-off events. For 10329/10329 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 23844 event pairs, 598 based on Foata normal form. 12/4628 useless extension candidates. Maximal degree in co-relation 17246. Up to 3060 conditions per place. [2022-12-13 11:07:35,243 INFO L137 encePairwiseOnDemand]: 277/286 looper letters, 108 selfloop transitions, 26 changer transitions 14/148 dead transitions. [2022-12-13 11:07:35,243 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 148 transitions, 1283 flow [2022-12-13 11:07:35,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:07:35,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 11:07:35,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 712 transitions. [2022-12-13 11:07:35,245 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4979020979020979 [2022-12-13 11:07:35,245 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 712 transitions. [2022-12-13 11:07:35,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 712 transitions. [2022-12-13 11:07:35,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:35,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 712 transitions. [2022-12-13 11:07:35,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 142.4) internal successors, (712), 5 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:35,247 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 286.0) internal successors, (1716), 6 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:35,248 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 286.0) internal successors, (1716), 6 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:35,248 INFO L175 Difference]: Start difference. First operand has 63 places, 60 transitions, 416 flow. Second operand 5 states and 712 transitions. [2022-12-13 11:07:35,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 148 transitions, 1283 flow [2022-12-13 11:07:35,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 148 transitions, 1105 flow, removed 72 selfloop flow, removed 2 redundant places. [2022-12-13 11:07:35,298 INFO L231 Difference]: Finished difference. Result has 67 places, 70 transitions, 529 flow [2022-12-13 11:07:35,298 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=529, PETRI_PLACES=67, PETRI_TRANSITIONS=70} [2022-12-13 11:07:35,299 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, 16 predicate places. [2022-12-13 11:07:35,299 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 70 transitions, 529 flow [2022-12-13 11:07:35,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 130.5) internal successors, (522), 4 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:35,299 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:35,299 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:35,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 11:07:35,299 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 11:07:35,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:35,299 INFO L85 PathProgramCache]: Analyzing trace with hash -220316621, now seen corresponding path program 2 times [2022-12-13 11:07:35,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:07:35,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933521004] [2022-12-13 11:07:35,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:35,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:07:35,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:35,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:35,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:07:35,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933521004] [2022-12-13 11:07:35,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933521004] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:35,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:35,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:07:35,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939966412] [2022-12-13 11:07:35,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:35,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:07:35,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:07:35,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:07:35,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:07:35,403 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 286 [2022-12-13 11:07:35,404 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 70 transitions, 529 flow. Second operand has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:35,404 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:35,404 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 286 [2022-12-13 11:07:35,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:35,907 INFO L130 PetriNetUnfolder]: 2453/4106 cut-off events. [2022-12-13 11:07:35,907 INFO L131 PetriNetUnfolder]: For 8449/8572 co-relation queries the response was YES. [2022-12-13 11:07:35,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14893 conditions, 4106 events. 2453/4106 cut-off events. For 8449/8572 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 24041 event pairs, 456 based on Foata normal form. 13/3984 useless extension candidates. Maximal degree in co-relation 14874. Up to 1822 conditions per place. [2022-12-13 11:07:35,924 INFO L137 encePairwiseOnDemand]: 283/286 looper letters, 103 selfloop transitions, 5 changer transitions 0/126 dead transitions. [2022-12-13 11:07:35,924 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 126 transitions, 1075 flow [2022-12-13 11:07:35,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 11:07:35,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 11:07:35,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 588 transitions. [2022-12-13 11:07:35,926 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.513986013986014 [2022-12-13 11:07:35,926 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 588 transitions. [2022-12-13 11:07:35,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 588 transitions. [2022-12-13 11:07:35,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:35,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 588 transitions. [2022-12-13 11:07:35,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:35,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 286.0) internal successors, (1430), 5 states have internal predecessors, (1430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:35,930 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 286.0) internal successors, (1430), 5 states have internal predecessors, (1430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:35,930 INFO L175 Difference]: Start difference. First operand has 67 places, 70 transitions, 529 flow. Second operand 4 states and 588 transitions. [2022-12-13 11:07:35,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 126 transitions, 1075 flow [2022-12-13 11:07:35,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 126 transitions, 1063 flow, removed 6 selfloop flow, removed 2 redundant places. [2022-12-13 11:07:35,982 INFO L231 Difference]: Finished difference. Result has 67 places, 70 transitions, 540 flow [2022-12-13 11:07:35,982 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=525, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=540, PETRI_PLACES=67, PETRI_TRANSITIONS=70} [2022-12-13 11:07:35,982 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, 16 predicate places. [2022-12-13 11:07:35,982 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 70 transitions, 540 flow [2022-12-13 11:07:35,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:35,983 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:35,983 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:35,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 11:07:35,983 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 11:07:35,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:35,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1884043753, now seen corresponding path program 1 times [2022-12-13 11:07:35,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:07:35,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633572048] [2022-12-13 11:07:35,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:35,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:07:36,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:36,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:36,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:07:36,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633572048] [2022-12-13 11:07:36,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633572048] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:36,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:36,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:07:36,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653304837] [2022-12-13 11:07:36,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:36,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:07:36,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:07:36,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:07:36,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:07:36,095 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 286 [2022-12-13 11:07:36,095 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 70 transitions, 540 flow. Second operand has 4 states, 4 states have (on average 137.25) internal successors, (549), 4 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:36,095 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:36,095 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 286 [2022-12-13 11:07:36,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:36,735 INFO L130 PetriNetUnfolder]: 3709/6232 cut-off events. [2022-12-13 11:07:36,735 INFO L131 PetriNetUnfolder]: For 14156/14327 co-relation queries the response was YES. [2022-12-13 11:07:36,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23041 conditions, 6232 events. 3709/6232 cut-off events. For 14156/14327 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 39593 event pairs, 903 based on Foata normal form. 40/6157 useless extension candidates. Maximal degree in co-relation 23022. Up to 2664 conditions per place. [2022-12-13 11:07:36,759 INFO L137 encePairwiseOnDemand]: 283/286 looper letters, 108 selfloop transitions, 8 changer transitions 0/131 dead transitions. [2022-12-13 11:07:36,759 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 131 transitions, 1205 flow [2022-12-13 11:07:36,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 11:07:36,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 11:07:36,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 578 transitions. [2022-12-13 11:07:36,760 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5052447552447552 [2022-12-13 11:07:36,760 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 578 transitions. [2022-12-13 11:07:36,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 578 transitions. [2022-12-13 11:07:36,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:36,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 578 transitions. [2022-12-13 11:07:36,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 144.5) internal successors, (578), 4 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:36,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 286.0) internal successors, (1430), 5 states have internal predecessors, (1430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:36,762 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 286.0) internal successors, (1430), 5 states have internal predecessors, (1430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:36,762 INFO L175 Difference]: Start difference. First operand has 67 places, 70 transitions, 540 flow. Second operand 4 states and 578 transitions. [2022-12-13 11:07:36,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 131 transitions, 1205 flow [2022-12-13 11:07:36,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 131 transitions, 1199 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:07:36,831 INFO L231 Difference]: Finished difference. Result has 71 places, 75 transitions, 627 flow [2022-12-13 11:07:36,831 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=627, PETRI_PLACES=71, PETRI_TRANSITIONS=75} [2022-12-13 11:07:36,832 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, 20 predicate places. [2022-12-13 11:07:36,832 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 75 transitions, 627 flow [2022-12-13 11:07:36,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 137.25) internal successors, (549), 4 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:36,832 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:36,832 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:36,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 11:07:36,833 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 11:07:36,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:36,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1819980693, now seen corresponding path program 3 times [2022-12-13 11:07:36,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:07:36,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025619634] [2022-12-13 11:07:36,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:36,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:07:36,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:36,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:36,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:07:36,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025619634] [2022-12-13 11:07:36,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025619634] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:36,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:36,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 11:07:36,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497844132] [2022-12-13 11:07:36,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:36,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 11:07:36,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:07:36,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 11:07:36,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 11:07:37,009 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 286 [2022-12-13 11:07:37,010 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 75 transitions, 627 flow. Second operand has 7 states, 7 states have (on average 132.71428571428572) internal successors, (929), 7 states have internal predecessors, (929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:37,010 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:37,010 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 286 [2022-12-13 11:07:37,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:37,754 INFO L130 PetriNetUnfolder]: 3148/5123 cut-off events. [2022-12-13 11:07:37,754 INFO L131 PetriNetUnfolder]: For 8462/8688 co-relation queries the response was YES. [2022-12-13 11:07:37,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18224 conditions, 5123 events. 3148/5123 cut-off events. For 8462/8688 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 32363 event pairs, 351 based on Foata normal form. 194/5116 useless extension candidates. Maximal degree in co-relation 18203. Up to 1798 conditions per place. [2022-12-13 11:07:37,774 INFO L137 encePairwiseOnDemand]: 279/286 looper letters, 66 selfloop transitions, 18 changer transitions 9/117 dead transitions. [2022-12-13 11:07:37,774 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 117 transitions, 966 flow [2022-12-13 11:07:37,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:07:37,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 11:07:37,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1123 transitions. [2022-12-13 11:07:37,776 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49082167832167833 [2022-12-13 11:07:37,776 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1123 transitions. [2022-12-13 11:07:37,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1123 transitions. [2022-12-13 11:07:37,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:37,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1123 transitions. [2022-12-13 11:07:37,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 140.375) internal successors, (1123), 8 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:37,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 286.0) internal successors, (2574), 9 states have internal predecessors, (2574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:37,779 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 286.0) internal successors, (2574), 9 states have internal predecessors, (2574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:37,780 INFO L175 Difference]: Start difference. First operand has 71 places, 75 transitions, 627 flow. Second operand 8 states and 1123 transitions. [2022-12-13 11:07:37,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 117 transitions, 966 flow [2022-12-13 11:07:37,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 117 transitions, 891 flow, removed 14 selfloop flow, removed 4 redundant places. [2022-12-13 11:07:37,912 INFO L231 Difference]: Finished difference. Result has 77 places, 69 transitions, 549 flow [2022-12-13 11:07:37,913 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=549, PETRI_PLACES=77, PETRI_TRANSITIONS=69} [2022-12-13 11:07:37,913 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, 26 predicate places. [2022-12-13 11:07:37,913 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 69 transitions, 549 flow [2022-12-13 11:07:37,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 132.71428571428572) internal successors, (929), 7 states have internal predecessors, (929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:37,913 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:37,913 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:37,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 11:07:37,914 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 11:07:37,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:37,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1790652443, now seen corresponding path program 1 times [2022-12-13 11:07:37,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:07:37,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706313028] [2022-12-13 11:07:37,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:37,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:07:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:38,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:38,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:07:38,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706313028] [2022-12-13 11:07:38,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706313028] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:38,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:38,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:07:38,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386557409] [2022-12-13 11:07:38,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:38,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:07:38,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:07:38,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:07:38,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:07:38,169 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 286 [2022-12-13 11:07:38,170 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 69 transitions, 549 flow. Second operand has 6 states, 6 states have (on average 133.66666666666666) internal successors, (802), 6 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:38,170 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:38,170 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 286 [2022-12-13 11:07:38,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:39,056 INFO L130 PetriNetUnfolder]: 4101/7131 cut-off events. [2022-12-13 11:07:39,056 INFO L131 PetriNetUnfolder]: For 20096/20258 co-relation queries the response was YES. [2022-12-13 11:07:39,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29929 conditions, 7131 events. 4101/7131 cut-off events. For 20096/20258 co-relation queries the response was YES. Maximal size of possible extension queue 477. Compared 51177 event pairs, 581 based on Foata normal form. 18/6937 useless extension candidates. Maximal degree in co-relation 29907. Up to 2880 conditions per place. [2022-12-13 11:07:39,086 INFO L137 encePairwiseOnDemand]: 279/286 looper letters, 134 selfloop transitions, 10 changer transitions 0/168 dead transitions. [2022-12-13 11:07:39,086 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 168 transitions, 1595 flow [2022-12-13 11:07:39,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 11:07:39,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 11:07:39,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 980 transitions. [2022-12-13 11:07:39,088 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48951048951048953 [2022-12-13 11:07:39,088 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 980 transitions. [2022-12-13 11:07:39,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 980 transitions. [2022-12-13 11:07:39,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:39,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 980 transitions. [2022-12-13 11:07:39,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 140.0) internal successors, (980), 7 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:39,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 286.0) internal successors, (2288), 8 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:39,091 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 286.0) internal successors, (2288), 8 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:39,091 INFO L175 Difference]: Start difference. First operand has 77 places, 69 transitions, 549 flow. Second operand 7 states and 980 transitions. [2022-12-13 11:07:39,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 168 transitions, 1595 flow [2022-12-13 11:07:39,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 168 transitions, 1320 flow, removed 71 selfloop flow, removed 7 redundant places. [2022-12-13 11:07:39,262 INFO L231 Difference]: Finished difference. Result has 79 places, 77 transitions, 562 flow [2022-12-13 11:07:39,262 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=562, PETRI_PLACES=79, PETRI_TRANSITIONS=77} [2022-12-13 11:07:39,263 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, 28 predicate places. [2022-12-13 11:07:39,263 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 77 transitions, 562 flow [2022-12-13 11:07:39,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.66666666666666) internal successors, (802), 6 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:39,263 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:39,263 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:39,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 11:07:39,263 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 11:07:39,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:39,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1006493735, now seen corresponding path program 2 times [2022-12-13 11:07:39,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:07:39,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955210605] [2022-12-13 11:07:39,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:39,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:07:39,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:39,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:39,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:07:39,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955210605] [2022-12-13 11:07:39,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955210605] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:39,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:39,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 11:07:39,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462136092] [2022-12-13 11:07:39,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:39,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 11:07:39,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:07:39,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 11:07:39,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 11:07:39,686 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 286 [2022-12-13 11:07:39,687 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 77 transitions, 562 flow. Second operand has 7 states, 7 states have (on average 133.14285714285714) internal successors, (932), 7 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:39,687 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:39,687 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 286 [2022-12-13 11:07:39,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:40,616 INFO L130 PetriNetUnfolder]: 4295/7549 cut-off events. [2022-12-13 11:07:40,616 INFO L131 PetriNetUnfolder]: For 18332/18795 co-relation queries the response was YES. [2022-12-13 11:07:40,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30341 conditions, 7549 events. 4295/7549 cut-off events. For 18332/18795 co-relation queries the response was YES. Maximal size of possible extension queue 502. Compared 55256 event pairs, 543 based on Foata normal form. 197/7511 useless extension candidates. Maximal degree in co-relation 30318. Up to 2675 conditions per place. [2022-12-13 11:07:40,666 INFO L137 encePairwiseOnDemand]: 280/286 looper letters, 106 selfloop transitions, 12 changer transitions 1/143 dead transitions. [2022-12-13 11:07:40,666 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 143 transitions, 1190 flow [2022-12-13 11:07:40,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 11:07:40,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 11:07:40,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 970 transitions. [2022-12-13 11:07:40,670 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48451548451548454 [2022-12-13 11:07:40,670 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 970 transitions. [2022-12-13 11:07:40,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 970 transitions. [2022-12-13 11:07:40,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:40,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 970 transitions. [2022-12-13 11:07:40,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 138.57142857142858) internal successors, (970), 7 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:40,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 286.0) internal successors, (2288), 8 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:40,678 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 286.0) internal successors, (2288), 8 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:40,678 INFO L175 Difference]: Start difference. First operand has 79 places, 77 transitions, 562 flow. Second operand 7 states and 970 transitions. [2022-12-13 11:07:40,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 143 transitions, 1190 flow [2022-12-13 11:07:40,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 143 transitions, 1189 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:07:40,887 INFO L231 Difference]: Finished difference. Result has 86 places, 80 transitions, 627 flow [2022-12-13 11:07:40,887 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=561, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=627, PETRI_PLACES=86, PETRI_TRANSITIONS=80} [2022-12-13 11:07:40,887 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, 35 predicate places. [2022-12-13 11:07:40,887 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 80 transitions, 627 flow [2022-12-13 11:07:40,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 133.14285714285714) internal successors, (932), 7 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:40,888 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:40,888 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:40,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 11:07:40,888 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 11:07:40,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:40,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1090894297, now seen corresponding path program 3 times [2022-12-13 11:07:40,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:07:40,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807208233] [2022-12-13 11:07:40,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:40,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:07:40,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:07:40,911 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:07:40,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:07:40,952 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:07:40,952 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 11:07:40,953 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-12-13 11:07:40,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-12-13 11:07:40,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-12-13 11:07:40,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-12-13 11:07:40,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-12-13 11:07:40,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-12-13 11:07:40,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-12-13 11:07:40,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-12-13 11:07:40,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-12-13 11:07:40,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-12-13 11:07:40,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-12-13 11:07:40,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-12-13 11:07:40,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-12-13 11:07:40,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-12-13 11:07:40,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-12-13 11:07:40,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-12-13 11:07:40,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 11:07:40,955 INFO L445 BasicCegarLoop]: Path program histogram: [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:40,959 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 11:07:40,960 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:07:41,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:07:41 BasicIcfg [2022-12-13 11:07:41,004 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:07:41,004 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:07:41,004 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:07:41,005 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:07:41,005 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:07:21" (3/4) ... [2022-12-13 11:07:41,007 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 11:07:41,007 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:07:41,007 INFO L158 Benchmark]: Toolchain (without parser) took 20280.15ms. Allocated memory was 195.0MB in the beginning and 1.0GB in the end (delta: 830.5MB). Free memory was 165.7MB in the beginning and 677.0MB in the end (delta: -511.3MB). Peak memory consumption was 318.4MB. Max. memory is 16.1GB. [2022-12-13 11:07:41,007 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 111.1MB. Free memory is still 77.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:07:41,008 INFO L158 Benchmark]: CACSL2BoogieTranslator took 445.09ms. Allocated memory is still 195.0MB. Free memory was 165.5MB in the beginning and 141.4MB in the end (delta: 24.1MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. [2022-12-13 11:07:41,008 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.53ms. Allocated memory is still 195.0MB. Free memory was 141.4MB in the beginning and 139.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:07:41,008 INFO L158 Benchmark]: Boogie Preprocessor took 21.51ms. Allocated memory is still 195.0MB. Free memory was 138.6MB in the beginning and 137.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:07:41,008 INFO L158 Benchmark]: RCFGBuilder took 571.79ms. Allocated memory is still 195.0MB. Free memory was 137.2MB in the beginning and 156.6MB in the end (delta: -19.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-12-13 11:07:41,008 INFO L158 Benchmark]: TraceAbstraction took 19191.94ms. Allocated memory was 195.0MB in the beginning and 1.0GB in the end (delta: 830.5MB). Free memory was 156.6MB in the beginning and 677.0MB in the end (delta: -520.4MB). Peak memory consumption was 312.2MB. Max. memory is 16.1GB. [2022-12-13 11:07:41,008 INFO L158 Benchmark]: Witness Printer took 2.53ms. Allocated memory is still 1.0GB. Free memory is still 677.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:07:41,009 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 111.1MB. Free memory is still 77.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 445.09ms. Allocated memory is still 195.0MB. Free memory was 165.5MB in the beginning and 141.4MB in the end (delta: 24.1MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.53ms. Allocated memory is still 195.0MB. Free memory was 141.4MB in the beginning and 139.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.51ms. Allocated memory is still 195.0MB. Free memory was 138.6MB in the beginning and 137.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 571.79ms. Allocated memory is still 195.0MB. Free memory was 137.2MB in the beginning and 156.6MB in the end (delta: -19.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 19191.94ms. Allocated memory was 195.0MB in the beginning and 1.0GB in the end (delta: 830.5MB). Free memory was 156.6MB in the beginning and 677.0MB in the end (delta: -520.4MB). Peak memory consumption was 312.2MB. Max. memory is 16.1GB. * Witness Printer took 2.53ms. Allocated memory is still 1.0GB. Free memory is still 677.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 156 PlacesBefore, 51 PlacesAfterwards, 145 TransitionsBefore, 39 TransitionsAfterwards, 3396 CoEnabledTransitionPairs, 7 FixpointIterations, 54 TrivialSequentialCompositions, 76 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 137 TotalNumberOfCompositions, 8377 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4002, independent: 3789, independent conditional: 0, independent unconditional: 3789, dependent: 213, dependent conditional: 0, dependent unconditional: 213, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1798, independent: 1752, independent conditional: 0, independent unconditional: 1752, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4002, independent: 2037, independent conditional: 0, independent unconditional: 2037, dependent: 167, dependent conditional: 0, dependent unconditional: 167, unknown: 1798, unknown conditional: 0, unknown unconditional: 1798] , Statistics on independence cache: Total cache size (in pairs): 183, Positive cache size: 165, Positive conditional cache size: 0, Positive unconditional cache size: 165, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p1_EAX = 0; [L716] 0 int __unbuffered_p2_EAX = 0; [L718] 0 int __unbuffered_p3_EAX = 0; [L720] 0 int __unbuffered_p3_EBX = 0; [L722] 0 int a = 0; [L723] 0 _Bool main$tmp_guard0; [L724] 0 _Bool main$tmp_guard1; [L726] 0 int x = 0; [L728] 0 int y = 0; [L729] 0 _Bool y$flush_delayed; [L730] 0 int y$mem_tmp; [L731] 0 _Bool y$r_buff0_thd0; [L732] 0 _Bool y$r_buff0_thd1; [L733] 0 _Bool y$r_buff0_thd2; [L734] 0 _Bool y$r_buff0_thd3; [L735] 0 _Bool y$r_buff0_thd4; [L736] 0 _Bool y$r_buff1_thd0; [L737] 0 _Bool y$r_buff1_thd1; [L738] 0 _Bool y$r_buff1_thd2; [L739] 0 _Bool y$r_buff1_thd3; [L740] 0 _Bool y$r_buff1_thd4; [L741] 0 _Bool y$read_delayed; [L742] 0 int *y$read_delayed_var; [L743] 0 int y$w_buff0; [L744] 0 _Bool y$w_buff0_used; [L745] 0 int y$w_buff1; [L746] 0 _Bool y$w_buff1_used; [L748] 0 int z = 0; [L749] 0 _Bool weak$$choice0; [L750] 0 _Bool weak$$choice2; [L858] 0 pthread_t t437; [L859] FCALL, FORK 0 pthread_create(&t437, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t437, ((void *)0), P0, ((void *)0))=-3, t437={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L860] 0 pthread_t t438; [L861] FCALL, FORK 0 pthread_create(&t438, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t438, ((void *)0), P1, ((void *)0))=-2, t437={5:0}, t438={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L862] 0 pthread_t t439; [L863] FCALL, FORK 0 pthread_create(&t439, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t439, ((void *)0), P2, ((void *)0))=-1, t437={5:0}, t438={6:0}, t439={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L864] 0 pthread_t t440; [L865] FCALL, FORK 0 pthread_create(&t440, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t440, ((void *)0), P3, ((void *)0))=0, t437={5:0}, t438={6:0}, t439={7:0}, t440={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L797] 3 y$w_buff1 = y$w_buff0 [L798] 3 y$w_buff0 = 1 [L799] 3 y$w_buff1_used = y$w_buff0_used [L800] 3 y$w_buff0_used = (_Bool)1 [L801] CALL 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L801] RET 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L802] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L803] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L804] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L805] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L806] 3 y$r_buff1_thd4 = y$r_buff0_thd4 [L807] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L810] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L827] 4 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L830] 4 __unbuffered_p3_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L833] 4 __unbuffered_p3_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L754] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L757] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L769] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L762] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L764] 1 return 0; [L772] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L773] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L774] 2 y$flush_delayed = weak$$choice2 [L775] 2 y$mem_tmp = y [L776] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L777] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L778] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L779] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L780] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L781] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L782] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L783] 2 __unbuffered_p1_EAX = y [L784] 2 y = y$flush_delayed ? y$mem_tmp : y [L785] 2 y$flush_delayed = (_Bool)0 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L790] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L792] 2 return 0; [L813] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L814] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L815] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L816] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L817] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L836] 4 y = y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L837] 4 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L838] 4 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L839] 4 y$r_buff0_thd4 = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L840] 4 y$r_buff1_thd4 = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L820] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L822] 3 return 0; [L843] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L845] 4 return 0; [L867] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L869] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L869] RET 0 assume_abort_if_not(main$tmp_guard0) [L871] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L872] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L873] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L874] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L875] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t437={5:0}, t438={6:0}, t439={7:0}, t440={3:0}, weak$$choice0=49, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L878] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L880] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 856]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 861]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 863]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 859]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 865]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 184 locations, 16 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 19.1s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 12.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 853 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 716 mSDsluCounter, 166 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 124 mSDsCounter, 84 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2380 IncrementalHoareTripleChecker+Invalid, 2464 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 84 mSolverCounterUnsat, 42 mSDtfsCounter, 2380 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=627occurred in iteration=11, InterpolantAutomatonStates: 75, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 266 NumberOfCodeBlocks, 266 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 226 ConstructedInterpolants, 0 QuantifiedInterpolants, 1551 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 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 [2022-12-13 11:07:41,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix017_power.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8 --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 c394bf0b454616c76d3ba114fe7f9b161b2a3a1a85dec23beec05d3a021c1c91 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 11:07:42,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:07:42,792 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:07:42,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:07:42,813 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:07:42,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:07:42,816 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:07:42,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:07:42,820 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:07:42,821 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:07:42,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:07:42,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:07:42,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:07:42,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:07:42,825 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:07:42,826 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:07:42,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:07:42,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:07:42,830 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:07:42,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:07:42,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:07:42,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:07:42,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:07:42,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:07:42,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:07:42,841 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:07:42,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:07:42,842 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:07:42,842 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:07:42,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:07:42,844 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:07:42,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:07:42,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:07:42,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:07:42,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:07:42,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:07:42,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:07:42,848 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:07:42,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:07:42,849 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:07:42,849 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:07:42,850 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-12-13 11:07:42,873 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:07:42,873 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:07:42,874 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:07:42,874 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:07:42,875 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:07:42,875 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:07:42,875 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:07:42,875 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:07:42,876 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:07:42,876 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:07:42,876 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:07:42,876 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 11:07:42,876 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:07:42,876 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:07:42,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:07:42,877 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 11:07:42,877 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 11:07:42,877 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 11:07:42,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:07:42,877 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 11:07:42,878 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 11:07:42,878 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 11:07:42,878 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:07:42,878 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:07:42,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:07:42,878 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:07:42,879 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:07:42,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:07:42,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:07:42,879 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:07:42,879 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 11:07:42,879 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 11:07:42,880 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:07:42,880 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:07:42,880 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:07:42,880 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 11:07:42,880 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:07:42,880 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/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_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8 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 -> c394bf0b454616c76d3ba114fe7f9b161b2a3a1a85dec23beec05d3a021c1c91 [2022-12-13 11:07:43,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:07:43,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:07:43,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:07:43,136 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:07:43,136 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:07:43,137 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/mix017_power.opt_rmo.opt.i [2022-12-13 11:07:45,723 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:07:45,917 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:07:45,918 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/sv-benchmarks/c/pthread-wmm/mix017_power.opt_rmo.opt.i [2022-12-13 11:07:45,930 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/data/826c2bf0d/8279d5439941458e8aa99ff57a92350e/FLAG1d598194e [2022-12-13 11:07:45,941 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/data/826c2bf0d/8279d5439941458e8aa99ff57a92350e [2022-12-13 11:07:45,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:07:45,944 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:07:45,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:07:45,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:07:45,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:07:45,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:07:45" (1/1) ... [2022-12-13 11:07:45,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cc3f2b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:45, skipping insertion in model container [2022-12-13 11:07:45,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:07:45" (1/1) ... [2022-12-13 11:07:45,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:07:45,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:07:46,131 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/sv-benchmarks/c/pthread-wmm/mix017_power.opt_rmo.opt.i[958,971] [2022-12-13 11:07:46,214 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,215 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,215 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,215 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,216 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,216 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,216 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,216 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,217 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,217 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,217 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,222 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,222 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,223 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,223 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,223 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,224 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,225 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,225 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,225 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,227 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,227 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,227 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,230 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,240 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,240 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,241 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,242 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,242 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,243 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,244 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:07:46,254 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:07:46,262 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/sv-benchmarks/c/pthread-wmm/mix017_power.opt_rmo.opt.i[958,971] [2022-12-13 11:07:46,279 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,279 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,279 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,279 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,280 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,280 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,280 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,280 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,280 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,281 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,281 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,284 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,284 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,284 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,285 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,285 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,285 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,286 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,286 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,287 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,287 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,288 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,288 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,288 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,289 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,289 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,289 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,289 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,289 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,290 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,290 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,291 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,291 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,291 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,294 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,294 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,296 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,296 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:07:46,296 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:07:46,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:07:46,319 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:07:46,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:46 WrapperNode [2022-12-13 11:07:46,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:07:46,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:07:46,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:07:46,321 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:07:46,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:46" (1/1) ... [2022-12-13 11:07:46,337 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:46" (1/1) ... [2022-12-13 11:07:46,356 INFO L138 Inliner]: procedures = 180, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 147 [2022-12-13 11:07:46,357 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:07:46,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:07:46,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:07:46,357 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:07:46,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:46" (1/1) ... [2022-12-13 11:07:46,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:46" (1/1) ... [2022-12-13 11:07:46,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:46" (1/1) ... [2022-12-13 11:07:46,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:46" (1/1) ... [2022-12-13 11:07:46,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:46" (1/1) ... [2022-12-13 11:07:46,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:46" (1/1) ... [2022-12-13 11:07:46,376 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:46" (1/1) ... [2022-12-13 11:07:46,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:46" (1/1) ... [2022-12-13 11:07:46,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:07:46,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:07:46,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:07:46,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:07:46,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:46" (1/1) ... [2022-12-13 11:07:46,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:07:46,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:07:46,404 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:07:46,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:07:46,438 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 11:07:46,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:07:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:07:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:07:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 11:07:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 11:07:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 11:07:46,439 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 11:07:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 11:07:46,439 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 11:07:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 11:07:46,439 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 11:07:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-13 11:07:46,439 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-13 11:07:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 11:07:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:07:46,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:07:46,441 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 11:07:46,560 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:07:46,561 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:07:46,873 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:07:46,944 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:07:46,944 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 11:07:46,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:07:46 BoogieIcfgContainer [2022-12-13 11:07:46,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:07:46,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:07:46,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:07:46,952 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:07:46,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:07:45" (1/3) ... [2022-12-13 11:07:46,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228780f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:07:46, skipping insertion in model container [2022-12-13 11:07:46,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:46" (2/3) ... [2022-12-13 11:07:46,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228780f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:07:46, skipping insertion in model container [2022-12-13 11:07:46,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:07:46" (3/3) ... [2022-12-13 11:07:46,955 INFO L112 eAbstractionObserver]: Analyzing ICFG mix017_power.opt_rmo.opt.i [2022-12-13 11:07:46,984 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:07:46,984 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-12-13 11:07:46,985 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 11:07:47,038 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 11:07:47,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 150 transitions, 320 flow [2022-12-13 11:07:47,107 INFO L130 PetriNetUnfolder]: 2/146 cut-off events. [2022-12-13 11:07:47,107 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:07:47,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 146 events. 2/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 95 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-12-13 11:07:47,111 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 150 transitions, 320 flow [2022-12-13 11:07:47,114 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 157 places, 146 transitions, 304 flow [2022-12-13 11:07:47,117 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 11:07:47,125 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 146 transitions, 304 flow [2022-12-13 11:07:47,127 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 146 transitions, 304 flow [2022-12-13 11:07:47,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 146 transitions, 304 flow [2022-12-13 11:07:47,159 INFO L130 PetriNetUnfolder]: 2/146 cut-off events. [2022-12-13 11:07:47,159 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:07:47,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 146 events. 2/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 95 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-12-13 11:07:47,162 INFO L119 LiptonReduction]: Number of co-enabled transitions 3396 [2022-12-13 11:07:53,009 INFO L134 LiptonReduction]: Checked pairs total: 9243 [2022-12-13 11:07:53,009 INFO L136 LiptonReduction]: Total number of compositions: 141 [2022-12-13 11:07:53,019 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:07:53,025 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7aef0fa8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:07:53,025 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-12-13 11:07:53,027 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 11:07:53,027 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:07:53,027 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:53,028 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 11:07:53,028 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 11:07:53,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:53,033 INFO L85 PathProgramCache]: Analyzing trace with hash 607, now seen corresponding path program 1 times [2022-12-13 11:07:53,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:07:53,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1216319041] [2022-12-13 11:07:53,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:53,044 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:07:53,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:07:53,045 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:07:53,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 11:07:53,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:53,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 11:07:53,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:07:53,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:53,157 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:07:53,158 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:07:53,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1216319041] [2022-12-13 11:07:53,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1216319041] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:53,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:53,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 11:07:53,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495287934] [2022-12-13 11:07:53,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:53,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 11:07:53,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:07:53,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 11:07:53,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 11:07:53,184 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 291 [2022-12-13 11:07:53,186 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 40 transitions, 92 flow. Second operand has 2 states, 2 states have (on average 137.5) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:53,186 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:53,186 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 291 [2022-12-13 11:07:53,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:54,208 INFO L130 PetriNetUnfolder]: 5761/8139 cut-off events. [2022-12-13 11:07:54,208 INFO L131 PetriNetUnfolder]: For 60/60 co-relation queries the response was YES. [2022-12-13 11:07:54,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16129 conditions, 8139 events. 5761/8139 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 442. Compared 44125 event pairs, 5761 based on Foata normal form. 240/7091 useless extension candidates. Maximal degree in co-relation 16117. Up to 7833 conditions per place. [2022-12-13 11:07:54,253 INFO L137 encePairwiseOnDemand]: 282/291 looper letters, 27 selfloop transitions, 0 changer transitions 0/31 dead transitions. [2022-12-13 11:07:54,253 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 31 transitions, 128 flow [2022-12-13 11:07:54,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 11:07:54,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 11:07:54,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 310 transitions. [2022-12-13 11:07:54,267 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5326460481099656 [2022-12-13 11:07:54,268 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 310 transitions. [2022-12-13 11:07:54,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 310 transitions. [2022-12-13 11:07:54,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:54,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 310 transitions. [2022-12-13 11:07:54,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 155.0) internal successors, (310), 2 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:54,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:54,281 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:54,282 INFO L175 Difference]: Start difference. First operand has 52 places, 40 transitions, 92 flow. Second operand 2 states and 310 transitions. [2022-12-13 11:07:54,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 31 transitions, 128 flow [2022-12-13 11:07:54,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 31 transitions, 124 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 11:07:54,288 INFO L231 Difference]: Finished difference. Result has 41 places, 31 transitions, 70 flow [2022-12-13 11:07:54,290 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=70, PETRI_PLACES=41, PETRI_TRANSITIONS=31} [2022-12-13 11:07:54,294 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -11 predicate places. [2022-12-13 11:07:54,294 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 31 transitions, 70 flow [2022-12-13 11:07:54,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 137.5) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:54,295 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:54,295 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:54,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 11:07:54,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:07:54,496 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 11:07:54,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:54,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1599017457, now seen corresponding path program 1 times [2022-12-13 11:07:54,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:07:54,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1388257889] [2022-12-13 11:07:54,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:54,498 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:07:54,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:07:54,499 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:07:54,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 11:07:54,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:54,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 11:07:54,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:07:54,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:54,591 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:07:54,592 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:07:54,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1388257889] [2022-12-13 11:07:54,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1388257889] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:54,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:54,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 11:07:54,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653865550] [2022-12-13 11:07:54,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:54,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:07:54,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:07:54,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:07:54,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:07:54,599 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 291 [2022-12-13 11:07:54,600 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 31 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:54,600 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:54,600 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 291 [2022-12-13 11:07:54,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:55,355 INFO L130 PetriNetUnfolder]: 4535/6679 cut-off events. [2022-12-13 11:07:55,355 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:07:55,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13008 conditions, 6679 events. 4535/6679 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 38989 event pairs, 857 based on Foata normal form. 0/6066 useless extension candidates. Maximal degree in co-relation 13005. Up to 4903 conditions per place. [2022-12-13 11:07:55,382 INFO L137 encePairwiseOnDemand]: 288/291 looper letters, 37 selfloop transitions, 2 changer transitions 4/47 dead transitions. [2022-12-13 11:07:55,382 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 47 transitions, 190 flow [2022-12-13 11:07:55,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:07:55,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:07:55,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 452 transitions. [2022-12-13 11:07:55,385 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5177548682703322 [2022-12-13 11:07:55,386 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 452 transitions. [2022-12-13 11:07:55,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 452 transitions. [2022-12-13 11:07:55,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:55,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 452 transitions. [2022-12-13 11:07:55,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:55,390 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:55,390 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:55,391 INFO L175 Difference]: Start difference. First operand has 41 places, 31 transitions, 70 flow. Second operand 3 states and 452 transitions. [2022-12-13 11:07:55,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 47 transitions, 190 flow [2022-12-13 11:07:55,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 47 transitions, 190 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 11:07:55,392 INFO L231 Difference]: Finished difference. Result has 42 places, 28 transitions, 68 flow [2022-12-13 11:07:55,393 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=42, PETRI_TRANSITIONS=28} [2022-12-13 11:07:55,393 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -10 predicate places. [2022-12-13 11:07:55,394 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 28 transitions, 68 flow [2022-12-13 11:07:55,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:55,394 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:55,394 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:55,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 11:07:55,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:07:55,596 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 11:07:55,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:55,598 INFO L85 PathProgramCache]: Analyzing trace with hash 960349180, now seen corresponding path program 1 times [2022-12-13 11:07:55,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:07:55,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1672976238] [2022-12-13 11:07:55,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:55,601 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:07:55,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:07:55,604 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:07:55,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-13 11:07:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:55,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 11:07:55,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:07:55,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:55,783 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:07:55,783 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:07:55,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1672976238] [2022-12-13 11:07:55,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1672976238] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:55,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:55,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:07:55,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282339697] [2022-12-13 11:07:55,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:55,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:07:55,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:07:55,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:07:55,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:07:55,796 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 291 [2022-12-13 11:07:55,796 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 28 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:55,796 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:55,796 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 291 [2022-12-13 11:07:55,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:56,114 INFO L130 PetriNetUnfolder]: 2335/3393 cut-off events. [2022-12-13 11:07:56,114 INFO L131 PetriNetUnfolder]: For 218/218 co-relation queries the response was YES. [2022-12-13 11:07:56,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7092 conditions, 3393 events. 2335/3393 cut-off events. For 218/218 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 16812 event pairs, 529 based on Foata normal form. 54/3287 useless extension candidates. Maximal degree in co-relation 7088. Up to 3074 conditions per place. [2022-12-13 11:07:56,128 INFO L137 encePairwiseOnDemand]: 285/291 looper letters, 36 selfloop transitions, 5 changer transitions 0/45 dead transitions. [2022-12-13 11:07:56,128 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 45 transitions, 192 flow [2022-12-13 11:07:56,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:07:56,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:07:56,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 438 transitions. [2022-12-13 11:07:56,130 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5017182130584192 [2022-12-13 11:07:56,130 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 438 transitions. [2022-12-13 11:07:56,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 438 transitions. [2022-12-13 11:07:56,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:56,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 438 transitions. [2022-12-13 11:07:56,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:56,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:56,134 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:56,134 INFO L175 Difference]: Start difference. First operand has 42 places, 28 transitions, 68 flow. Second operand 3 states and 438 transitions. [2022-12-13 11:07:56,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 45 transitions, 192 flow [2022-12-13 11:07:56,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 45 transitions, 186 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 11:07:56,136 INFO L231 Difference]: Finished difference. Result has 41 places, 32 transitions, 97 flow [2022-12-13 11:07:56,136 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=97, PETRI_PLACES=41, PETRI_TRANSITIONS=32} [2022-12-13 11:07:56,136 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -11 predicate places. [2022-12-13 11:07:56,136 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 32 transitions, 97 flow [2022-12-13 11:07:56,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:56,137 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:56,137 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:56,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-12-13 11:07:56,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:07:56,339 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 11:07:56,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:56,340 INFO L85 PathProgramCache]: Analyzing trace with hash -794748081, now seen corresponding path program 1 times [2022-12-13 11:07:56,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:07:56,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1971319014] [2022-12-13 11:07:56,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:56,343 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:07:56,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:07:56,346 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:07:56,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-13 11:07:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:56,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 11:07:56,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:07:56,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:56,517 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:07:56,517 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:07:56,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1971319014] [2022-12-13 11:07:56,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1971319014] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:56,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:56,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:07:56,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034313891] [2022-12-13 11:07:56,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:56,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:07:56,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:07:56,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:07:56,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:07:56,534 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 291 [2022-12-13 11:07:56,535 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 32 transitions, 97 flow. Second operand has 4 states, 4 states have (on average 135.5) internal successors, (542), 4 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:56,535 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:56,535 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 291 [2022-12-13 11:07:56,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:56,786 INFO L130 PetriNetUnfolder]: 1120/1773 cut-off events. [2022-12-13 11:07:56,786 INFO L131 PetriNetUnfolder]: For 234/234 co-relation queries the response was YES. [2022-12-13 11:07:56,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4312 conditions, 1773 events. 1120/1773 cut-off events. For 234/234 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 8478 event pairs, 230 based on Foata normal form. 81/1783 useless extension candidates. Maximal degree in co-relation 4307. Up to 1054 conditions per place. [2022-12-13 11:07:56,792 INFO L137 encePairwiseOnDemand]: 285/291 looper letters, 47 selfloop transitions, 9 changer transitions 0/60 dead transitions. [2022-12-13 11:07:56,792 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 60 transitions, 283 flow [2022-12-13 11:07:56,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 11:07:56,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 11:07:56,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 585 transitions. [2022-12-13 11:07:56,794 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5025773195876289 [2022-12-13 11:07:56,794 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 585 transitions. [2022-12-13 11:07:56,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 585 transitions. [2022-12-13 11:07:56,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:56,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 585 transitions. [2022-12-13 11:07:56,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 146.25) internal successors, (585), 4 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:56,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 291.0) internal successors, (1455), 5 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:56,798 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 291.0) internal successors, (1455), 5 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:56,798 INFO L175 Difference]: Start difference. First operand has 41 places, 32 transitions, 97 flow. Second operand 4 states and 585 transitions. [2022-12-13 11:07:56,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 60 transitions, 283 flow [2022-12-13 11:07:56,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 60 transitions, 278 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:07:56,799 INFO L231 Difference]: Finished difference. Result has 44 places, 36 transitions, 144 flow [2022-12-13 11:07:56,799 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=144, PETRI_PLACES=44, PETRI_TRANSITIONS=36} [2022-12-13 11:07:56,800 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -8 predicate places. [2022-12-13 11:07:56,800 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 36 transitions, 144 flow [2022-12-13 11:07:56,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 135.5) internal successors, (542), 4 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:56,800 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:56,800 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:56,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-12-13 11:07:57,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:07:57,001 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 11:07:57,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:57,001 INFO L85 PathProgramCache]: Analyzing trace with hash 744501730, now seen corresponding path program 1 times [2022-12-13 11:07:57,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:07:57,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1664284171] [2022-12-13 11:07:57,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:57,002 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:07:57,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:07:57,003 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:07:57,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-13 11:07:57,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:57,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 11:07:57,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:07:57,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:57,164 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:07:57,165 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:07:57,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1664284171] [2022-12-13 11:07:57,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1664284171] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:57,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:57,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:07:57,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110160435] [2022-12-13 11:07:57,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:57,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:07:57,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:07:57,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:07:57,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:07:57,175 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 291 [2022-12-13 11:07:57,177 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 36 transitions, 144 flow. Second operand has 5 states, 5 states have (on average 135.4) internal successors, (677), 5 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:57,177 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:57,177 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 291 [2022-12-13 11:07:57,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:57,416 INFO L130 PetriNetUnfolder]: 670/1098 cut-off events. [2022-12-13 11:07:57,416 INFO L131 PetriNetUnfolder]: For 750/750 co-relation queries the response was YES. [2022-12-13 11:07:57,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3081 conditions, 1098 events. 670/1098 cut-off events. For 750/750 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 4828 event pairs, 169 based on Foata normal form. 45/1117 useless extension candidates. Maximal degree in co-relation 3075. Up to 400 conditions per place. [2022-12-13 11:07:57,419 INFO L137 encePairwiseOnDemand]: 285/291 looper letters, 56 selfloop transitions, 13 changer transitions 0/73 dead transitions. [2022-12-13 11:07:57,419 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 73 transitions, 384 flow [2022-12-13 11:07:57,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:07:57,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 11:07:57,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 730 transitions. [2022-12-13 11:07:57,421 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5017182130584192 [2022-12-13 11:07:57,421 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 730 transitions. [2022-12-13 11:07:57,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 730 transitions. [2022-12-13 11:07:57,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:57,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 730 transitions. [2022-12-13 11:07:57,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:57,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 291.0) internal successors, (1746), 6 states have internal predecessors, (1746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:57,424 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 291.0) internal successors, (1746), 6 states have internal predecessors, (1746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:57,424 INFO L175 Difference]: Start difference. First operand has 44 places, 36 transitions, 144 flow. Second operand 5 states and 730 transitions. [2022-12-13 11:07:57,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 73 transitions, 384 flow [2022-12-13 11:07:57,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 73 transitions, 366 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-12-13 11:07:57,427 INFO L231 Difference]: Finished difference. Result has 47 places, 40 transitions, 194 flow [2022-12-13 11:07:57,427 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=194, PETRI_PLACES=47, PETRI_TRANSITIONS=40} [2022-12-13 11:07:57,427 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -5 predicate places. [2022-12-13 11:07:57,427 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 40 transitions, 194 flow [2022-12-13 11:07:57,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 135.4) internal successors, (677), 5 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:57,428 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:57,428 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:57,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-13 11:07:57,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:07:57,629 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 11:07:57,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:57,630 INFO L85 PathProgramCache]: Analyzing trace with hash 614178776, now seen corresponding path program 1 times [2022-12-13 11:07:57,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:07:57,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [313579855] [2022-12-13 11:07:57,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:57,633 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:07:57,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:07:57,636 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:07:57,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-12-13 11:07:57,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:57,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 11:07:57,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:07:57,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:57,845 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:07:57,846 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:07:57,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [313579855] [2022-12-13 11:07:57,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [313579855] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:57,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:57,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 11:07:57,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262185745] [2022-12-13 11:07:57,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:57,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:07:57,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:07:57,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:07:57,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:07:57,862 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 291 [2022-12-13 11:07:57,863 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 40 transitions, 194 flow. Second operand has 6 states, 6 states have (on average 135.33333333333334) internal successors, (812), 6 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:57,863 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:57,864 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 291 [2022-12-13 11:07:57,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:58,186 INFO L130 PetriNetUnfolder]: 615/988 cut-off events. [2022-12-13 11:07:58,186 INFO L131 PetriNetUnfolder]: For 867/867 co-relation queries the response was YES. [2022-12-13 11:07:58,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2892 conditions, 988 events. 615/988 cut-off events. For 867/867 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 4333 event pairs, 164 based on Foata normal form. 11/984 useless extension candidates. Maximal degree in co-relation 2885. Up to 400 conditions per place. [2022-12-13 11:07:58,191 INFO L137 encePairwiseOnDemand]: 285/291 looper letters, 52 selfloop transitions, 17 changer transitions 0/73 dead transitions. [2022-12-13 11:07:58,191 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 73 transitions, 410 flow [2022-12-13 11:07:58,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:07:58,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 11:07:58,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 862 transitions. [2022-12-13 11:07:58,196 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4936998854524628 [2022-12-13 11:07:58,196 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 862 transitions. [2022-12-13 11:07:58,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 862 transitions. [2022-12-13 11:07:58,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:58,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 862 transitions. [2022-12-13 11:07:58,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 143.66666666666666) internal successors, (862), 6 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:58,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 291.0) internal successors, (2037), 7 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:58,205 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 291.0) internal successors, (2037), 7 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:58,205 INFO L175 Difference]: Start difference. First operand has 47 places, 40 transitions, 194 flow. Second operand 6 states and 862 transitions. [2022-12-13 11:07:58,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 73 transitions, 410 flow [2022-12-13 11:07:58,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 73 transitions, 376 flow, removed 8 selfloop flow, removed 3 redundant places. [2022-12-13 11:07:58,215 INFO L231 Difference]: Finished difference. Result has 50 places, 40 transitions, 204 flow [2022-12-13 11:07:58,215 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=204, PETRI_PLACES=50, PETRI_TRANSITIONS=40} [2022-12-13 11:07:58,216 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -2 predicate places. [2022-12-13 11:07:58,216 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 40 transitions, 204 flow [2022-12-13 11:07:58,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.33333333333334) internal successors, (812), 6 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:58,216 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:58,216 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:58,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-12-13 11:07:58,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:07:58,418 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 11:07:58,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:58,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1298305793, now seen corresponding path program 1 times [2022-12-13 11:07:58,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:07:58,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [208665175] [2022-12-13 11:07:58,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:58,421 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:07:58,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:07:58,424 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:07:58,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-12-13 11:07:58,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:58,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 11:07:58,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:07:58,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:58,623 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:07:58,623 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:07:58,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [208665175] [2022-12-13 11:07:58,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [208665175] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:58,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:58,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:07:58,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165587320] [2022-12-13 11:07:58,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:58,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:07:58,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:07:58,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:07:58,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:07:58,640 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 291 [2022-12-13 11:07:58,641 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 40 transitions, 204 flow. Second operand has 5 states, 5 states have (on average 136.8) internal successors, (684), 5 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:58,641 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:58,641 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 291 [2022-12-13 11:07:58,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:58,919 INFO L130 PetriNetUnfolder]: 879/1478 cut-off events. [2022-12-13 11:07:58,919 INFO L131 PetriNetUnfolder]: For 1991/1991 co-relation queries the response was YES. [2022-12-13 11:07:58,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4338 conditions, 1478 events. 879/1478 cut-off events. For 1991/1991 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 7577 event pairs, 145 based on Foata normal form. 0/1472 useless extension candidates. Maximal degree in co-relation 4330. Up to 777 conditions per place. [2022-12-13 11:07:58,924 INFO L137 encePairwiseOnDemand]: 287/291 looper letters, 81 selfloop transitions, 3 changer transitions 0/87 dead transitions. [2022-12-13 11:07:58,924 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 87 transitions, 635 flow [2022-12-13 11:07:58,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:07:58,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 11:07:58,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 715 transitions. [2022-12-13 11:07:58,926 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49140893470790376 [2022-12-13 11:07:58,926 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 715 transitions. [2022-12-13 11:07:58,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 715 transitions. [2022-12-13 11:07:58,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:58,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 715 transitions. [2022-12-13 11:07:58,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 143.0) internal successors, (715), 5 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:58,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 291.0) internal successors, (1746), 6 states have internal predecessors, (1746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:58,929 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 291.0) internal successors, (1746), 6 states have internal predecessors, (1746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:58,929 INFO L175 Difference]: Start difference. First operand has 50 places, 40 transitions, 204 flow. Second operand 5 states and 715 transitions. [2022-12-13 11:07:58,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 87 transitions, 635 flow [2022-12-13 11:07:58,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 87 transitions, 522 flow, removed 24 selfloop flow, removed 4 redundant places. [2022-12-13 11:07:58,938 INFO L231 Difference]: Finished difference. Result has 53 places, 42 transitions, 175 flow [2022-12-13 11:07:58,938 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=175, PETRI_PLACES=53, PETRI_TRANSITIONS=42} [2022-12-13 11:07:58,938 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 1 predicate places. [2022-12-13 11:07:58,938 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 42 transitions, 175 flow [2022-12-13 11:07:58,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 136.8) internal successors, (684), 5 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:58,939 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:58,939 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:58,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-12-13 11:07:59,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:07:59,140 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 11:07:59,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:59,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1037378211, now seen corresponding path program 2 times [2022-12-13 11:07:59,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:07:59,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1679954014] [2022-12-13 11:07:59,143 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 11:07:59,143 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:07:59,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:07:59,146 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:07:59,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-12-13 11:07:59,237 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 11:07:59,238 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:07:59,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 11:07:59,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:07:59,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:07:59,281 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:07:59,281 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:07:59,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1679954014] [2022-12-13 11:07:59,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1679954014] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:07:59,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:07:59,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:07:59,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567866533] [2022-12-13 11:07:59,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:07:59,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:07:59,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:07:59,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:07:59,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:07:59,293 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 291 [2022-12-13 11:07:59,294 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 42 transitions, 175 flow. Second operand has 5 states, 5 states have (on average 136.8) internal successors, (684), 5 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:59,294 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:07:59,294 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 291 [2022-12-13 11:07:59,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:07:59,609 INFO L130 PetriNetUnfolder]: 1515/2361 cut-off events. [2022-12-13 11:07:59,609 INFO L131 PetriNetUnfolder]: For 1703/1703 co-relation queries the response was YES. [2022-12-13 11:07:59,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6742 conditions, 2361 events. 1515/2361 cut-off events. For 1703/1703 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 11957 event pairs, 359 based on Foata normal form. 1/2335 useless extension candidates. Maximal degree in co-relation 6731. Up to 1266 conditions per place. [2022-12-13 11:07:59,615 INFO L137 encePairwiseOnDemand]: 287/291 looper letters, 83 selfloop transitions, 4 changer transitions 0/91 dead transitions. [2022-12-13 11:07:59,615 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 91 transitions, 564 flow [2022-12-13 11:07:59,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:07:59,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 11:07:59,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 716 transitions. [2022-12-13 11:07:59,617 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49209621993127145 [2022-12-13 11:07:59,617 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 716 transitions. [2022-12-13 11:07:59,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 716 transitions. [2022-12-13 11:07:59,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:07:59,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 716 transitions. [2022-12-13 11:07:59,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 143.2) internal successors, (716), 5 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:59,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 291.0) internal successors, (1746), 6 states have internal predecessors, (1746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:59,620 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 291.0) internal successors, (1746), 6 states have internal predecessors, (1746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:59,620 INFO L175 Difference]: Start difference. First operand has 53 places, 42 transitions, 175 flow. Second operand 5 states and 716 transitions. [2022-12-13 11:07:59,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 91 transitions, 564 flow [2022-12-13 11:07:59,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 91 transitions, 562 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:07:59,637 INFO L231 Difference]: Finished difference. Result has 59 places, 45 transitions, 209 flow [2022-12-13 11:07:59,637 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=209, PETRI_PLACES=59, PETRI_TRANSITIONS=45} [2022-12-13 11:07:59,638 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 7 predicate places. [2022-12-13 11:07:59,638 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 45 transitions, 209 flow [2022-12-13 11:07:59,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 136.8) internal successors, (684), 5 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:07:59,638 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:07:59,638 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:07:59,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-12-13 11:07:59,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:07:59,839 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 11:07:59,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:07:59,840 INFO L85 PathProgramCache]: Analyzing trace with hash -870897673, now seen corresponding path program 1 times [2022-12-13 11:07:59,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:07:59,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [312342178] [2022-12-13 11:07:59,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:07:59,841 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:07:59,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:07:59,842 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:07:59,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-12-13 11:07:59,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:07:59,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-13 11:07:59,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:08:00,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:08:00,519 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:08:00,519 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:08:00,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [312342178] [2022-12-13 11:08:00,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [312342178] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:08:00,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:08:00,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:08:00,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037537361] [2022-12-13 11:08:00,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:08:00,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:08:00,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:08:00,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:08:00,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:08:00,948 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 291 [2022-12-13 11:08:00,948 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 45 transitions, 209 flow. Second operand has 6 states, 6 states have (on average 120.83333333333333) internal successors, (725), 6 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:08:00,948 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:08:00,948 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 291 [2022-12-13 11:08:00,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:08:01,389 INFO L130 PetriNetUnfolder]: 1209/2045 cut-off events. [2022-12-13 11:08:01,389 INFO L131 PetriNetUnfolder]: For 2166/2166 co-relation queries the response was YES. [2022-12-13 11:08:01,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5996 conditions, 2045 events. 1209/2045 cut-off events. For 2166/2166 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 11493 event pairs, 108 based on Foata normal form. 4/2014 useless extension candidates. Maximal degree in co-relation 5982. Up to 1613 conditions per place. [2022-12-13 11:08:01,392 INFO L137 encePairwiseOnDemand]: 286/291 looper letters, 34 selfloop transitions, 4 changer transitions 25/67 dead transitions. [2022-12-13 11:08:01,392 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 67 transitions, 443 flow [2022-12-13 11:08:01,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:08:01,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 11:08:01,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 741 transitions. [2022-12-13 11:08:01,394 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42439862542955326 [2022-12-13 11:08:01,394 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 741 transitions. [2022-12-13 11:08:01,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 741 transitions. [2022-12-13 11:08:01,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:08:01,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 741 transitions. [2022-12-13 11:08:01,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 123.5) internal successors, (741), 6 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:08:01,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 291.0) internal successors, (2037), 7 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:08:01,397 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 291.0) internal successors, (2037), 7 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:08:01,397 INFO L175 Difference]: Start difference. First operand has 59 places, 45 transitions, 209 flow. Second operand 6 states and 741 transitions. [2022-12-13 11:08:01,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 67 transitions, 443 flow [2022-12-13 11:08:01,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 67 transitions, 440 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:08:01,406 INFO L231 Difference]: Finished difference. Result has 62 places, 39 transitions, 176 flow [2022-12-13 11:08:01,406 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=176, PETRI_PLACES=62, PETRI_TRANSITIONS=39} [2022-12-13 11:08:01,407 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 10 predicate places. [2022-12-13 11:08:01,407 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 39 transitions, 176 flow [2022-12-13 11:08:01,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.83333333333333) internal successors, (725), 6 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:08:01,408 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:08:01,408 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:08:01,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-12-13 11:08:01,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:08:01,610 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 11:08:01,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:08:01,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1129034201, now seen corresponding path program 3 times [2022-12-13 11:08:01,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:08:01,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1266933964] [2022-12-13 11:08:01,612 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 11:08:01,613 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:08:01,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:08:01,615 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:08:01,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-12-13 11:08:01,748 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-13 11:08:01,748 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:08:01,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 11:08:01,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:08:01,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:08:01,868 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:08:01,869 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:08:01,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1266933964] [2022-12-13 11:08:01,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1266933964] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:08:01,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:08:01,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 11:08:01,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956821303] [2022-12-13 11:08:01,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:08:01,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 11:08:01,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:08:01,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 11:08:01,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 11:08:01,891 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 291 [2022-12-13 11:08:01,892 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 39 transitions, 176 flow. Second operand has 7 states, 7 states have (on average 133.28571428571428) internal successors, (933), 7 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:08:01,892 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:08:01,892 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 291 [2022-12-13 11:08:01,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:08:02,257 INFO L130 PetriNetUnfolder]: 1097/1898 cut-off events. [2022-12-13 11:08:02,257 INFO L131 PetriNetUnfolder]: For 1734/1734 co-relation queries the response was YES. [2022-12-13 11:08:02,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5769 conditions, 1898 events. 1097/1898 cut-off events. For 1734/1734 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 10169 event pairs, 226 based on Foata normal form. 1/1851 useless extension candidates. Maximal degree in co-relation 5755. Up to 569 conditions per place. [2022-12-13 11:08:02,262 INFO L137 encePairwiseOnDemand]: 283/291 looper letters, 70 selfloop transitions, 6 changer transitions 44/124 dead transitions. [2022-12-13 11:08:02,262 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 124 transitions, 842 flow [2022-12-13 11:08:02,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:08:02,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 11:08:02,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1107 transitions. [2022-12-13 11:08:02,264 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47551546391752575 [2022-12-13 11:08:02,264 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1107 transitions. [2022-12-13 11:08:02,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1107 transitions. [2022-12-13 11:08:02,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:08:02,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1107 transitions. [2022-12-13 11:08:02,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 138.375) internal successors, (1107), 8 states have internal predecessors, (1107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:08:02,267 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 291.0) internal successors, (2619), 9 states have internal predecessors, (2619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:08:02,268 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 291.0) internal successors, (2619), 9 states have internal predecessors, (2619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:08:02,268 INFO L175 Difference]: Start difference. First operand has 62 places, 39 transitions, 176 flow. Second operand 8 states and 1107 transitions. [2022-12-13 11:08:02,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 124 transitions, 842 flow [2022-12-13 11:08:02,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 124 transitions, 820 flow, removed 6 selfloop flow, removed 8 redundant places. [2022-12-13 11:08:02,280 INFO L231 Difference]: Finished difference. Result has 62 places, 43 transitions, 201 flow [2022-12-13 11:08:02,280 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=201, PETRI_PLACES=62, PETRI_TRANSITIONS=43} [2022-12-13 11:08:02,281 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 10 predicate places. [2022-12-13 11:08:02,281 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 43 transitions, 201 flow [2022-12-13 11:08:02,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 133.28571428571428) internal successors, (933), 7 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:08:02,282 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:08:02,282 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:08:02,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-12-13 11:08:02,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:08:02,482 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 11:08:02,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:08:02,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1215724543, now seen corresponding path program 4 times [2022-12-13 11:08:02,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:08:02,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1627302805] [2022-12-13 11:08:02,483 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 11:08:02,483 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:08:02,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:08:02,484 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:08:02,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-12-13 11:08:02,560 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 11:08:02,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:08:02,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 11:08:02,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:08:02,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:08:02,596 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:08:02,596 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:08:02,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1627302805] [2022-12-13 11:08:02,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1627302805] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:08:02,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:08:02,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:08:02,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629703964] [2022-12-13 11:08:02,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:08:02,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:08:02,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:08:02,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:08:02,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:08:02,611 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 291 [2022-12-13 11:08:02,612 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 43 transitions, 201 flow. Second operand has 5 states, 5 states have (on average 136.8) internal successors, (684), 5 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:08:02,612 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:08:02,612 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 291 [2022-12-13 11:08:02,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:08:02,922 INFO L130 PetriNetUnfolder]: 1392/2331 cut-off events. [2022-12-13 11:08:02,922 INFO L131 PetriNetUnfolder]: For 2741/2741 co-relation queries the response was YES. [2022-12-13 11:08:02,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7752 conditions, 2331 events. 1392/2331 cut-off events. For 2741/2741 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 12389 event pairs, 547 based on Foata normal form. 1/2271 useless extension candidates. Maximal degree in co-relation 7737. Up to 823 conditions per place. [2022-12-13 11:08:02,928 INFO L137 encePairwiseOnDemand]: 287/291 looper letters, 39 selfloop transitions, 1 changer transitions 41/84 dead transitions. [2022-12-13 11:08:02,928 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 84 transitions, 582 flow [2022-12-13 11:08:02,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:08:02,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 11:08:02,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 706 transitions. [2022-12-13 11:08:02,931 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4852233676975945 [2022-12-13 11:08:02,931 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 706 transitions. [2022-12-13 11:08:02,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 706 transitions. [2022-12-13 11:08:02,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:08:02,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 706 transitions. [2022-12-13 11:08:02,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 141.2) internal successors, (706), 5 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:08:02,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 291.0) internal successors, (1746), 6 states have internal predecessors, (1746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:08:02,938 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 291.0) internal successors, (1746), 6 states have internal predecessors, (1746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:08:02,938 INFO L175 Difference]: Start difference. First operand has 62 places, 43 transitions, 201 flow. Second operand 5 states and 706 transitions. [2022-12-13 11:08:02,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 84 transitions, 582 flow [2022-12-13 11:08:02,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 84 transitions, 571 flow, removed 5 selfloop flow, removed 4 redundant places. [2022-12-13 11:08:02,957 INFO L231 Difference]: Finished difference. Result has 62 places, 41 transitions, 194 flow [2022-12-13 11:08:02,957 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=194, PETRI_PLACES=62, PETRI_TRANSITIONS=41} [2022-12-13 11:08:02,958 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 10 predicate places. [2022-12-13 11:08:02,958 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 41 transitions, 194 flow [2022-12-13 11:08:02,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 136.8) internal successors, (684), 5 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:08:02,958 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:08:02,959 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:08:02,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-12-13 11:08:03,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:08:03,159 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 11:08:03,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:08:03,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1965571649, now seen corresponding path program 5 times [2022-12-13 11:08:03,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:08:03,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [789724840] [2022-12-13 11:08:03,160 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 11:08:03,160 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:08:03,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:08:03,161 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:08:03,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-12-13 11:08:03,244 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 11:08:03,244 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:08:03,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-13 11:08:03,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:08:03,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:08:03,440 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:08:03,440 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:08:03,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [789724840] [2022-12-13 11:08:03,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [789724840] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:08:03,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:08:03,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 11:08:03,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862321799] [2022-12-13 11:08:03,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:08:03,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 11:08:03,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:08:03,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 11:08:03,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-13 11:08:03,488 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 291 [2022-12-13 11:08:03,488 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 41 transitions, 194 flow. Second operand has 8 states, 8 states have (on average 132.875) internal successors, (1063), 8 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:08:03,488 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:08:03,488 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 291 [2022-12-13 11:08:03,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:08:03,821 INFO L130 PetriNetUnfolder]: 782/1373 cut-off events. [2022-12-13 11:08:03,821 INFO L131 PetriNetUnfolder]: For 1850/1866 co-relation queries the response was YES. [2022-12-13 11:08:03,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4681 conditions, 1373 events. 782/1373 cut-off events. For 1850/1866 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 6814 event pairs, 147 based on Foata normal form. 13/1347 useless extension candidates. Maximal degree in co-relation 4666. Up to 573 conditions per place. [2022-12-13 11:08:03,824 INFO L137 encePairwiseOnDemand]: 284/291 looper letters, 43 selfloop transitions, 5 changer transitions 34/86 dead transitions. [2022-12-13 11:08:03,824 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 86 transitions, 594 flow [2022-12-13 11:08:03,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:08:03,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 11:08:03,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1090 transitions. [2022-12-13 11:08:03,826 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.468213058419244 [2022-12-13 11:08:03,826 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1090 transitions. [2022-12-13 11:08:03,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1090 transitions. [2022-12-13 11:08:03,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:08:03,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1090 transitions. [2022-12-13 11:08:03,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 136.25) internal successors, (1090), 8 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:08:03,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 291.0) internal successors, (2619), 9 states have internal predecessors, (2619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:08:03,830 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 291.0) internal successors, (2619), 9 states have internal predecessors, (2619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:08:03,830 INFO L175 Difference]: Start difference. First operand has 62 places, 41 transitions, 194 flow. Second operand 8 states and 1090 transitions. [2022-12-13 11:08:03,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 86 transitions, 594 flow [2022-12-13 11:08:03,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 86 transitions, 577 flow, removed 5 selfloop flow, removed 4 redundant places. [2022-12-13 11:08:03,836 INFO L231 Difference]: Finished difference. Result has 66 places, 41 transitions, 202 flow [2022-12-13 11:08:03,836 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=202, PETRI_PLACES=66, PETRI_TRANSITIONS=41} [2022-12-13 11:08:03,837 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 14 predicate places. [2022-12-13 11:08:03,837 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 41 transitions, 202 flow [2022-12-13 11:08:03,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 132.875) internal successors, (1063), 8 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:08:03,837 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:08:03,837 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:08:03,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-12-13 11:08:04,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:08:04,039 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 11:08:04,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:08:04,040 INFO L85 PathProgramCache]: Analyzing trace with hash 847581401, now seen corresponding path program 6 times [2022-12-13 11:08:04,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:08:04,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1632146605] [2022-12-13 11:08:04,042 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 11:08:04,042 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:08:04,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:08:04,045 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:08:04,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-12-13 11:08:04,245 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-12-13 11:08:04,246 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-12-13 11:08:04,246 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:08:04,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:08:04,370 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 11:08:04,370 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 11:08:04,371 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-12-13 11:08:04,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-12-13 11:08:04,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-12-13 11:08:04,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-12-13 11:08:04,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-12-13 11:08:04,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-12-13 11:08:04,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-12-13 11:08:04,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-12-13 11:08:04,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-12-13 11:08:04,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-12-13 11:08:04,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-12-13 11:08:04,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-12-13 11:08:04,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-12-13 11:08:04,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-12-13 11:08:04,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-12-13 11:08:04,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-12-13 11:08:04,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-12-13 11:08:04,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:08:04,575 INFO L445 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:08:04,580 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 11:08:04,580 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:08:04,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:08:04 BasicIcfg [2022-12-13 11:08:04,650 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:08:04,651 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:08:04,651 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:08:04,651 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:08:04,651 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:07:46" (3/4) ... [2022-12-13 11:08:04,653 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 11:08:04,653 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:08:04,654 INFO L158 Benchmark]: Toolchain (without parser) took 18710.01ms. Allocated memory was 58.7MB in the beginning and 457.2MB in the end (delta: 398.5MB). Free memory was 27.7MB in the beginning and 333.9MB in the end (delta: -306.2MB). Peak memory consumption was 92.4MB. Max. memory is 16.1GB. [2022-12-13 11:08:04,654 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 46.1MB. Free memory was 25.0MB in the beginning and 25.0MB in the end (delta: 54.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:08:04,654 INFO L158 Benchmark]: CACSL2BoogieTranslator took 375.45ms. Allocated memory is still 58.7MB. Free memory was 27.6MB in the beginning and 25.8MB in the end (delta: 1.8MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2022-12-13 11:08:04,654 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.30ms. Allocated memory is still 58.7MB. Free memory was 25.6MB in the beginning and 37.1MB in the end (delta: -11.6MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. [2022-12-13 11:08:04,654 INFO L158 Benchmark]: Boogie Preprocessor took 22.82ms. Allocated memory is still 58.7MB. Free memory was 37.1MB in the beginning and 35.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:08:04,655 INFO L158 Benchmark]: RCFGBuilder took 566.47ms. Allocated memory is still 58.7MB. Free memory was 35.0MB in the beginning and 35.2MB in the end (delta: -165.1kB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2022-12-13 11:08:04,655 INFO L158 Benchmark]: TraceAbstraction took 17701.07ms. Allocated memory was 58.7MB in the beginning and 457.2MB in the end (delta: 398.5MB). Free memory was 34.7MB in the beginning and 335.0MB in the end (delta: -300.3MB). Peak memory consumption was 97.1MB. Max. memory is 16.1GB. [2022-12-13 11:08:04,655 INFO L158 Benchmark]: Witness Printer took 2.52ms. Allocated memory is still 457.2MB. Free memory was 335.0MB in the beginning and 333.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:08:04,657 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 46.1MB. Free memory was 25.0MB in the beginning and 25.0MB in the end (delta: 54.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 375.45ms. Allocated memory is still 58.7MB. Free memory was 27.6MB in the beginning and 25.8MB in the end (delta: 1.8MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.30ms. Allocated memory is still 58.7MB. Free memory was 25.6MB in the beginning and 37.1MB in the end (delta: -11.6MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.82ms. Allocated memory is still 58.7MB. Free memory was 37.1MB in the beginning and 35.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 566.47ms. Allocated memory is still 58.7MB. Free memory was 35.0MB in the beginning and 35.2MB in the end (delta: -165.1kB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. * TraceAbstraction took 17701.07ms. Allocated memory was 58.7MB in the beginning and 457.2MB in the end (delta: 398.5MB). Free memory was 34.7MB in the beginning and 335.0MB in the end (delta: -300.3MB). Peak memory consumption was 97.1MB. Max. memory is 16.1GB. * Witness Printer took 2.52ms. Allocated memory is still 457.2MB. Free memory was 335.0MB in the beginning and 333.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.9s, 157 PlacesBefore, 52 PlacesAfterwards, 146 TransitionsBefore, 40 TransitionsAfterwards, 3396 CoEnabledTransitionPairs, 7 FixpointIterations, 57 TrivialSequentialCompositions, 76 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 141 TotalNumberOfCompositions, 9243 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4027, independent: 3804, independent conditional: 0, independent unconditional: 3804, dependent: 223, dependent conditional: 0, dependent unconditional: 223, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1797, independent: 1761, independent conditional: 0, independent unconditional: 1761, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4027, independent: 2043, independent conditional: 0, independent unconditional: 2043, dependent: 187, dependent conditional: 0, dependent unconditional: 187, unknown: 1797, unknown conditional: 0, unknown unconditional: 1797] , Statistics on independence cache: Total cache size (in pairs): 179, Positive cache size: 161, Positive conditional cache size: 0, Positive unconditional cache size: 161, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p1_EAX = 0; [L716] 0 int __unbuffered_p2_EAX = 0; [L718] 0 int __unbuffered_p3_EAX = 0; [L720] 0 int __unbuffered_p3_EBX = 0; [L722] 0 int a = 0; [L723] 0 _Bool main$tmp_guard0; [L724] 0 _Bool main$tmp_guard1; [L726] 0 int x = 0; [L728] 0 int y = 0; [L729] 0 _Bool y$flush_delayed; [L730] 0 int y$mem_tmp; [L731] 0 _Bool y$r_buff0_thd0; [L732] 0 _Bool y$r_buff0_thd1; [L733] 0 _Bool y$r_buff0_thd2; [L734] 0 _Bool y$r_buff0_thd3; [L735] 0 _Bool y$r_buff0_thd4; [L736] 0 _Bool y$r_buff1_thd0; [L737] 0 _Bool y$r_buff1_thd1; [L738] 0 _Bool y$r_buff1_thd2; [L739] 0 _Bool y$r_buff1_thd3; [L740] 0 _Bool y$r_buff1_thd4; [L741] 0 _Bool y$read_delayed; [L742] 0 int *y$read_delayed_var; [L743] 0 int y$w_buff0; [L744] 0 _Bool y$w_buff0_used; [L745] 0 int y$w_buff1; [L746] 0 _Bool y$w_buff1_used; [L748] 0 int z = 0; [L749] 0 _Bool weak$$choice0; [L750] 0 _Bool weak$$choice2; [L858] 0 pthread_t t437; [L859] FCALL, FORK 0 pthread_create(&t437, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t437, ((void *)0), P0, ((void *)0))=-1, t437={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L860] 0 pthread_t t438; [L861] FCALL, FORK 0 pthread_create(&t438, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t438, ((void *)0), P1, ((void *)0))=0, t437={3:0}, t438={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L862] 0 pthread_t t439; [L863] FCALL, FORK 0 pthread_create(&t439, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t439, ((void *)0), P2, ((void *)0))=1, t437={3:0}, t438={7:0}, t439={11:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L864] 0 pthread_t t440; [L865] FCALL, FORK 0 pthread_create(&t440, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t440, ((void *)0), P3, ((void *)0))=2, t437={3:0}, t438={7:0}, t439={11:0}, t440={15:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L797] 3 y$w_buff1 = y$w_buff0 [L798] 3 y$w_buff0 = 1 [L799] 3 y$w_buff1_used = y$w_buff0_used [L800] 3 y$w_buff0_used = (_Bool)1 [L801] CALL 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L801] RET 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L802] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L803] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L804] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L805] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L806] 3 y$r_buff1_thd4 = y$r_buff0_thd4 [L807] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L810] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L827] 4 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L830] 4 __unbuffered_p3_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L833] 4 __unbuffered_p3_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L754] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L757] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L769] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L762] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L764] 1 return 0; [L772] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L773] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L774] 2 y$flush_delayed = weak$$choice2 [L775] 2 y$mem_tmp = y [L776] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L777] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L778] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L779] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L780] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L781] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L782] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L783] 2 __unbuffered_p1_EAX = y [L784] 2 y = y$flush_delayed ? y$mem_tmp : y [L785] 2 y$flush_delayed = (_Bool)0 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L790] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L792] 2 return 0; [L813] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L814] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L815] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L816] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L817] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L836] 4 y = y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L837] 4 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L838] 4 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L839] 4 y$r_buff0_thd4 = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L840] 4 y$r_buff1_thd4 = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L820] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L822] 3 return 0; [L843] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L845] 4 return 0; [L867] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L869] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L869] RET 0 assume_abort_if_not(main$tmp_guard0) [L871] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L872] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L873] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L874] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L875] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t437={3:0}, t438={7:0}, t439={11:0}, t440={15:0}, weak$$choice0=2, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L878] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L880] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 856]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 861]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 863]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 859]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 865]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 185 locations, 16 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 17.5s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 543 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 431 mSDsluCounter, 236 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 215 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2130 IncrementalHoareTripleChecker+Invalid, 2194 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 21 mSDtfsCounter, 2130 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 238 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=209occurred in iteration=8, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 264 NumberOfCodeBlocks, 264 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 225 ConstructedInterpolants, 20 QuantifiedInterpolants, 2136 SizeOfPredicates, 29 NumberOfNonLiveVariables, 1870 ConjunctsInSsa, 93 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 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 [2022-12-13 11:08:04,673 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37d632e0-257e-4465-880b-a1aaa190efcb/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample