./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe037.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 38b53e6a 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_8f673a0b-2a11-4d09-973f-3445b5ef0a9e/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f673a0b-2a11-4d09-973f-3445b5ef0a9e/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f673a0b-2a11-4d09-973f-3445b5ef0a9e/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f673a0b-2a11-4d09-973f-3445b5ef0a9e/bin/uautomizer-ZsLfNo2U6R/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe037.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f673a0b-2a11-4d09-973f-3445b5ef0a9e/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f673a0b-2a11-4d09-973f-3445b5ef0a9e/bin/uautomizer-ZsLfNo2U6R --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 8e4a27807726d35f891e97d8bb2a7e6664171035f3f5de29d992fc7dfa583447 --- 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-38b53e6 [2022-11-25 18:08:03,561 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:08:03,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:08:03,605 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:08:03,606 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:08:03,610 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:08:03,612 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:08:03,615 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:08:03,618 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:08:03,623 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:08:03,624 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:08:03,625 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:08:03,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:08:03,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:08:03,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:08:03,629 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:08:03,629 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:08:03,630 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:08:03,632 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:08:03,633 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:08:03,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:08:03,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:08:03,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:08:03,643 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:08:03,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:08:03,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:08:03,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:08:03,650 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:08:03,650 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:08:03,651 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:08:03,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:08:03,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:08:03,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:08:03,656 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:08:03,658 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:08:03,658 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:08:03,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:08:03,659 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:08:03,659 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:08:03,664 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:08:03,664 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:08:03,665 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f673a0b-2a11-4d09-973f-3445b5ef0a9e/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-25 18:08:03,697 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:08:03,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:08:03,698 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:08:03,698 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:08:03,698 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:08:03,699 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:08:03,699 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:08:03,700 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:08:03,700 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:08:03,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:08:03,700 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:08:03,701 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:08:03,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:08:03,701 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:08:03,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:08:03,702 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 18:08:03,702 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 18:08:03,702 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 18:08:03,702 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:08:03,702 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 18:08:03,703 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:08:03,703 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:08:03,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:08:03,703 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:08:03,704 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:08:03,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:08:03,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:08:03,704 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:08:03,705 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:08:03,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:08:03,705 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:08:03,705 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:08:03,705 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:08:03,706 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_8f673a0b-2a11-4d09-973f-3445b5ef0a9e/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f673a0b-2a11-4d09-973f-3445b5ef0a9e/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e4a27807726d35f891e97d8bb2a7e6664171035f3f5de29d992fc7dfa583447 [2022-11-25 18:08:04,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:08:04,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:08:04,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:08:04,040 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:08:04,041 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:08:04,042 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f673a0b-2a11-4d09-973f-3445b5ef0a9e/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread-wmm/safe037.i [2022-11-25 18:08:07,132 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:08:07,432 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:08:07,436 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f673a0b-2a11-4d09-973f-3445b5ef0a9e/sv-benchmarks/c/pthread-wmm/safe037.i [2022-11-25 18:08:07,460 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f673a0b-2a11-4d09-973f-3445b5ef0a9e/bin/uautomizer-ZsLfNo2U6R/data/648fe3e2a/69e4c3d3005b4a93acffb2a85aa240e0/FLAGf054c0a45 [2022-11-25 18:08:07,475 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f673a0b-2a11-4d09-973f-3445b5ef0a9e/bin/uautomizer-ZsLfNo2U6R/data/648fe3e2a/69e4c3d3005b4a93acffb2a85aa240e0 [2022-11-25 18:08:07,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:08:07,479 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:08:07,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:08:07,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:08:07,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:08:07,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:08:07" (1/1) ... [2022-11-25 18:08:07,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79c4f700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:08:07, skipping insertion in model container [2022-11-25 18:08:07,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:08:07" (1/1) ... [2022-11-25 18:08:07,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:08:07,535 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:08:07,732 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_8f673a0b-2a11-4d09-973f-3445b5ef0a9e/sv-benchmarks/c/pthread-wmm/safe037.i[941,954] [2022-11-25 18:08:08,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,003 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,005 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,005 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,005 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,006 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,006 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,007 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,008 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,008 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,008 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,011 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,014 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,015 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,017 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,019 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,020 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,030 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,032 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,033 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,034 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,034 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,036 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,037 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:08:08,049 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:08:08,064 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_8f673a0b-2a11-4d09-973f-3445b5ef0a9e/sv-benchmarks/c/pthread-wmm/safe037.i[941,954] [2022-11-25 18:08:08,107 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,107 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,108 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,108 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,108 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,109 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,110 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,110 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,111 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,111 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,112 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,113 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,113 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,113 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,114 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,114 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,115 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,115 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,115 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,116 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,117 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,118 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,118 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,119 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,119 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,119 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,120 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,120 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,121 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,121 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,126 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,127 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,129 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,129 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,130 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:08:08,132 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:08:08,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:08:08,227 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:08:08,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:08:08 WrapperNode [2022-11-25 18:08:08,228 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:08:08,229 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:08:08,229 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:08:08,229 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:08:08,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:08:08" (1/1) ... [2022-11-25 18:08:08,256 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:08:08" (1/1) ... [2022-11-25 18:08:08,277 INFO L138 Inliner]: procedures = 176, calls = 59, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2022-11-25 18:08:08,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:08:08,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:08:08,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:08:08,283 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:08:08,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:08:08" (1/1) ... [2022-11-25 18:08:08,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:08:08" (1/1) ... [2022-11-25 18:08:08,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:08:08" (1/1) ... [2022-11-25 18:08:08,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:08:08" (1/1) ... [2022-11-25 18:08:08,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:08:08" (1/1) ... [2022-11-25 18:08:08,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:08:08" (1/1) ... [2022-11-25 18:08:08,326 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:08:08" (1/1) ... [2022-11-25 18:08:08,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:08:08" (1/1) ... [2022-11-25 18:08:08,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:08:08,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:08:08,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:08:08,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:08:08,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:08:08" (1/1) ... [2022-11-25 18:08:08,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:08:08,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f673a0b-2a11-4d09-973f-3445b5ef0a9e/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:08:08,381 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f673a0b-2a11-4d09-973f-3445b5ef0a9e/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:08:08,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f673a0b-2a11-4d09-973f-3445b5ef0a9e/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:08:08,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:08:08,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 18:08:08,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:08:08,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:08:08,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:08:08,430 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-25 18:08:08,430 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-25 18:08:08,430 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-25 18:08:08,430 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-25 18:08:08,430 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-25 18:08:08,431 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-25 18:08:08,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:08:08,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 18:08:08,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:08:08,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:08:08,434 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 18:08:08,590 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:08:08,592 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:08:08,861 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:08:08,869 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:08:08,869 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 18:08:08,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:08:08 BoogieIcfgContainer [2022-11-25 18:08:08,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:08:08,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:08:08,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:08:08,893 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:08:08,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:08:07" (1/3) ... [2022-11-25 18:08:08,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@677d5d48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:08:08, skipping insertion in model container [2022-11-25 18:08:08,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:08:08" (2/3) ... [2022-11-25 18:08:08,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@677d5d48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:08:08, skipping insertion in model container [2022-11-25 18:08:08,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:08:08" (3/3) ... [2022-11-25 18:08:08,896 INFO L112 eAbstractionObserver]: Analyzing ICFG safe037.i [2022-11-25 18:08:08,918 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:08:08,919 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-25 18:08:08,919 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 18:08:09,042 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 18:08:09,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 111 places, 103 transitions, 221 flow [2022-11-25 18:08:09,144 INFO L130 PetriNetUnfolder]: 2/100 cut-off events. [2022-11-25 18:08:09,145 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:08:09,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 100 events. 2/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2022-11-25 18:08:09,150 INFO L82 GeneralOperation]: Start removeDead. Operand has 111 places, 103 transitions, 221 flow [2022-11-25 18:08:09,155 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 95 transitions, 199 flow [2022-11-25 18:08:09,159 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 18:08:09,175 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 95 transitions, 199 flow [2022-11-25 18:08:09,178 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 95 transitions, 199 flow [2022-11-25 18:08:09,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 95 transitions, 199 flow [2022-11-25 18:08:09,210 INFO L130 PetriNetUnfolder]: 2/95 cut-off events. [2022-11-25 18:08:09,210 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:08:09,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 95 events. 2/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2022-11-25 18:08:09,213 INFO L119 LiptonReduction]: Number of co-enabled transitions 1620 [2022-11-25 18:08:12,858 INFO L134 LiptonReduction]: Checked pairs total: 3246 [2022-11-25 18:08:12,858 INFO L136 LiptonReduction]: Total number of compositions: 98 [2022-11-25 18:08:12,876 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:08:12,883 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;@53b9707, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:08:12,883 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-11-25 18:08:12,885 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 18:08:12,885 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:08:12,885 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:08:12,886 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 18:08:12,886 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-25 18:08:12,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:12,892 INFO L85 PathProgramCache]: Analyzing trace with hash 361, now seen corresponding path program 1 times [2022-11-25 18:08:12,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:12,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7229248] [2022-11-25 18:08:12,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:12,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:13,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:13,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:13,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:13,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7229248] [2022-11-25 18:08:13,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7229248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:13,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:13,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 18:08:13,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361103846] [2022-11-25 18:08:13,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:13,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:08:13,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:13,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:08:13,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:08:13,076 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 201 [2022-11-25 18:08:13,079 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 24 transitions, 57 flow. Second operand has 2 states, 2 states have (on average 97.5) internal successors, (195), 2 states have internal predecessors, (195), 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) [2022-11-25 18:08:13,079 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:08:13,079 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 201 [2022-11-25 18:08:13,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:08:13,272 INFO L130 PetriNetUnfolder]: 218/365 cut-off events. [2022-11-25 18:08:13,273 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 18:08:13,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 747 conditions, 365 events. 218/365 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1534 event pairs, 218 based on Foata normal form. 0/325 useless extension candidates. Maximal degree in co-relation 736. Up to 352 conditions per place. [2022-11-25 18:08:13,282 INFO L137 encePairwiseOnDemand]: 195/201 looper letters, 15 selfloop transitions, 0 changer transitions 0/18 dead transitions. [2022-11-25 18:08:13,283 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 18 transitions, 75 flow [2022-11-25 18:08:13,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:08:13,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 18:08:13,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 215 transitions. [2022-11-25 18:08:13,303 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5348258706467661 [2022-11-25 18:08:13,304 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 215 transitions. [2022-11-25 18:08:13,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 215 transitions. [2022-11-25 18:08:13,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:08:13,310 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 215 transitions. [2022-11-25 18:08:13,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 107.5) internal successors, (215), 2 states have internal predecessors, (215), 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) [2022-11-25 18:08:13,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 201.0) internal successors, (603), 3 states have internal predecessors, (603), 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) [2022-11-25 18:08:13,323 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 201.0) internal successors, (603), 3 states have internal predecessors, (603), 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) [2022-11-25 18:08:13,325 INFO L175 Difference]: Start difference. First operand has 34 places, 24 transitions, 57 flow. Second operand 2 states and 215 transitions. [2022-11-25 18:08:13,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 18 transitions, 75 flow [2022-11-25 18:08:13,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 72 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-25 18:08:13,331 INFO L231 Difference]: Finished difference. Result has 26 places, 18 transitions, 42 flow [2022-11-25 18:08:13,333 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=42, PETRI_PLACES=26, PETRI_TRANSITIONS=18} [2022-11-25 18:08:13,338 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, -8 predicate places. [2022-11-25 18:08:13,338 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 42 flow [2022-11-25 18:08:13,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 97.5) internal successors, (195), 2 states have internal predecessors, (195), 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) [2022-11-25 18:08:13,339 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:08:13,339 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:08:13,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:08:13,340 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-25 18:08:13,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:13,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1700107371, now seen corresponding path program 1 times [2022-11-25 18:08:13,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:13,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352573194] [2022-11-25 18:08:13,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:13,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:13,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:13,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:13,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:13,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352573194] [2022-11-25 18:08:13,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352573194] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:13,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:13,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:08:13,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588114442] [2022-11-25 18:08:13,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:13,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:08:13,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:13,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:08:13,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:08:13,735 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 201 [2022-11-25 18:08:13,736 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 42 flow. Second operand has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 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) [2022-11-25 18:08:13,736 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:08:13,737 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 201 [2022-11-25 18:08:13,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:08:13,868 INFO L130 PetriNetUnfolder]: 181/325 cut-off events. [2022-11-25 18:08:13,868 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:08:13,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 671 conditions, 325 events. 181/325 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1270 event pairs, 41 based on Foata normal form. 27/330 useless extension candidates. Maximal degree in co-relation 668. Up to 220 conditions per place. [2022-11-25 18:08:13,875 INFO L137 encePairwiseOnDemand]: 194/201 looper letters, 21 selfloop transitions, 4 changer transitions 13/41 dead transitions. [2022-11-25 18:08:13,875 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 41 transitions, 168 flow [2022-11-25 18:08:13,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:08:13,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 18:08:13,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 502 transitions. [2022-11-25 18:08:13,882 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49950248756218907 [2022-11-25 18:08:13,882 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 502 transitions. [2022-11-25 18:08:13,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 502 transitions. [2022-11-25 18:08:13,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:08:13,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 502 transitions. [2022-11-25 18:08:13,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 100.4) internal successors, (502), 5 states have internal predecessors, (502), 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) [2022-11-25 18:08:13,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 201.0) internal successors, (1206), 6 states have internal predecessors, (1206), 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) [2022-11-25 18:08:13,892 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 201.0) internal successors, (1206), 6 states have internal predecessors, (1206), 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) [2022-11-25 18:08:13,892 INFO L175 Difference]: Start difference. First operand has 26 places, 18 transitions, 42 flow. Second operand 5 states and 502 transitions. [2022-11-25 18:08:13,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 41 transitions, 168 flow [2022-11-25 18:08:13,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 41 transitions, 168 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 18:08:13,895 INFO L231 Difference]: Finished difference. Result has 33 places, 21 transitions, 82 flow [2022-11-25 18:08:13,895 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=82, PETRI_PLACES=33, PETRI_TRANSITIONS=21} [2022-11-25 18:08:13,896 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, -1 predicate places. [2022-11-25 18:08:13,896 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 21 transitions, 82 flow [2022-11-25 18:08:13,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 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) [2022-11-25 18:08:13,897 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:08:13,897 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:08:13,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:08:13,898 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-25 18:08:13,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:13,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1495671871, now seen corresponding path program 1 times [2022-11-25 18:08:13,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:13,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100788405] [2022-11-25 18:08:13,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:13,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:13,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:14,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:14,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:14,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100788405] [2022-11-25 18:08:14,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100788405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:14,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:14,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:08:14,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739130216] [2022-11-25 18:08:14,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:14,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:08:14,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:14,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:08:14,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:08:14,429 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 201 [2022-11-25 18:08:14,430 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 21 transitions, 82 flow. Second operand has 5 states, 5 states have (on average 84.0) internal successors, (420), 5 states have internal predecessors, (420), 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) [2022-11-25 18:08:14,431 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:08:14,431 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 201 [2022-11-25 18:08:14,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:08:14,520 INFO L130 PetriNetUnfolder]: 116/218 cut-off events. [2022-11-25 18:08:14,521 INFO L131 PetriNetUnfolder]: For 115/115 co-relation queries the response was YES. [2022-11-25 18:08:14,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 657 conditions, 218 events. 116/218 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 813 event pairs, 22 based on Foata normal form. 0/218 useless extension candidates. Maximal degree in co-relation 650. Up to 182 conditions per place. [2022-11-25 18:08:14,523 INFO L137 encePairwiseOnDemand]: 197/201 looper letters, 22 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2022-11-25 18:08:14,523 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 28 transitions, 159 flow [2022-11-25 18:08:14,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:08:14,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 18:08:14,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 431 transitions. [2022-11-25 18:08:14,525 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42885572139303485 [2022-11-25 18:08:14,525 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 431 transitions. [2022-11-25 18:08:14,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 431 transitions. [2022-11-25 18:08:14,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:08:14,526 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 431 transitions. [2022-11-25 18:08:14,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 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) [2022-11-25 18:08:14,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 201.0) internal successors, (1206), 6 states have internal predecessors, (1206), 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) [2022-11-25 18:08:14,530 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 201.0) internal successors, (1206), 6 states have internal predecessors, (1206), 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) [2022-11-25 18:08:14,530 INFO L175 Difference]: Start difference. First operand has 33 places, 21 transitions, 82 flow. Second operand 5 states and 431 transitions. [2022-11-25 18:08:14,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 28 transitions, 159 flow [2022-11-25 18:08:14,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 28 transitions, 150 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-11-25 18:08:14,533 INFO L231 Difference]: Finished difference. Result has 32 places, 20 transitions, 76 flow [2022-11-25 18:08:14,533 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=76, PETRI_PLACES=32, PETRI_TRANSITIONS=20} [2022-11-25 18:08:14,533 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, -2 predicate places. [2022-11-25 18:08:14,534 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 20 transitions, 76 flow [2022-11-25 18:08:14,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.0) internal successors, (420), 5 states have internal predecessors, (420), 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) [2022-11-25 18:08:14,534 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:08:14,534 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:08:14,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:08:14,535 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-25 18:08:14,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:14,535 INFO L85 PathProgramCache]: Analyzing trace with hash 121800493, now seen corresponding path program 1 times [2022-11-25 18:08:14,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:14,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226531308] [2022-11-25 18:08:14,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:14,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:14,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:14,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:14,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:14,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226531308] [2022-11-25 18:08:14,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226531308] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:14,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:14,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:08:14,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250446226] [2022-11-25 18:08:14,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:14,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:08:14,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:14,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:08:14,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:08:14,722 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 201 [2022-11-25 18:08:14,723 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 20 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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) [2022-11-25 18:08:14,723 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:08:14,724 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 201 [2022-11-25 18:08:14,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:08:14,842 INFO L130 PetriNetUnfolder]: 91/184 cut-off events. [2022-11-25 18:08:14,842 INFO L131 PetriNetUnfolder]: For 65/65 co-relation queries the response was YES. [2022-11-25 18:08:14,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 534 conditions, 184 events. 91/184 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 604 event pairs, 17 based on Foata normal form. 19/200 useless extension candidates. Maximal degree in co-relation 528. Up to 82 conditions per place. [2022-11-25 18:08:14,844 INFO L137 encePairwiseOnDemand]: 195/201 looper letters, 25 selfloop transitions, 7 changer transitions 13/48 dead transitions. [2022-11-25 18:08:14,844 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 48 transitions, 272 flow [2022-11-25 18:08:14,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:08:14,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 18:08:14,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 599 transitions. [2022-11-25 18:08:14,847 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4966832504145937 [2022-11-25 18:08:14,847 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 599 transitions. [2022-11-25 18:08:14,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 599 transitions. [2022-11-25 18:08:14,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:08:14,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 599 transitions. [2022-11-25 18:08:14,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 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) [2022-11-25 18:08:14,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 201.0) internal successors, (1407), 7 states have internal predecessors, (1407), 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) [2022-11-25 18:08:14,853 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 201.0) internal successors, (1407), 7 states have internal predecessors, (1407), 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) [2022-11-25 18:08:14,854 INFO L175 Difference]: Start difference. First operand has 32 places, 20 transitions, 76 flow. Second operand 6 states and 599 transitions. [2022-11-25 18:08:14,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 48 transitions, 272 flow [2022-11-25 18:08:14,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 48 transitions, 263 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-25 18:08:14,856 INFO L231 Difference]: Finished difference. Result has 37 places, 23 transitions, 127 flow [2022-11-25 18:08:14,857 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=127, PETRI_PLACES=37, PETRI_TRANSITIONS=23} [2022-11-25 18:08:14,857 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 3 predicate places. [2022-11-25 18:08:14,858 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 23 transitions, 127 flow [2022-11-25 18:08:14,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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) [2022-11-25 18:08:14,858 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:08:14,859 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:08:14,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 18:08:14,859 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-25 18:08:14,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:14,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1273380281, now seen corresponding path program 1 times [2022-11-25 18:08:14,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:14,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485033737] [2022-11-25 18:08:14,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:14,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:14,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:14,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:14,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485033737] [2022-11-25 18:08:14,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485033737] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:14,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:14,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:08:14,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068961764] [2022-11-25 18:08:14,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:14,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:08:14,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:14,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:08:14,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:08:14,986 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 201 [2022-11-25 18:08:14,987 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 23 transitions, 127 flow. Second operand has 4 states, 4 states have (on average 96.25) internal successors, (385), 4 states have internal predecessors, (385), 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) [2022-11-25 18:08:14,987 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:08:14,987 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 201 [2022-11-25 18:08:14,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:08:15,073 INFO L130 PetriNetUnfolder]: 113/245 cut-off events. [2022-11-25 18:08:15,074 INFO L131 PetriNetUnfolder]: For 369/369 co-relation queries the response was YES. [2022-11-25 18:08:15,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 847 conditions, 245 events. 113/245 cut-off events. For 369/369 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1004 event pairs, 20 based on Foata normal form. 5/250 useless extension candidates. Maximal degree in co-relation 838. Up to 118 conditions per place. [2022-11-25 18:08:15,076 INFO L137 encePairwiseOnDemand]: 198/201 looper letters, 31 selfloop transitions, 2 changer transitions 12/47 dead transitions. [2022-11-25 18:08:15,076 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 47 transitions, 369 flow [2022-11-25 18:08:15,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:08:15,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 18:08:15,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 404 transitions. [2022-11-25 18:08:15,079 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5024875621890548 [2022-11-25 18:08:15,079 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 404 transitions. [2022-11-25 18:08:15,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 404 transitions. [2022-11-25 18:08:15,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:08:15,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 404 transitions. [2022-11-25 18:08:15,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 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) [2022-11-25 18:08:15,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 201.0) internal successors, (1005), 5 states have internal predecessors, (1005), 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) [2022-11-25 18:08:15,083 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 201.0) internal successors, (1005), 5 states have internal predecessors, (1005), 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) [2022-11-25 18:08:15,084 INFO L175 Difference]: Start difference. First operand has 37 places, 23 transitions, 127 flow. Second operand 4 states and 404 transitions. [2022-11-25 18:08:15,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 47 transitions, 369 flow [2022-11-25 18:08:15,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 47 transitions, 299 flow, removed 26 selfloop flow, removed 4 redundant places. [2022-11-25 18:08:15,088 INFO L231 Difference]: Finished difference. Result has 36 places, 24 transitions, 110 flow [2022-11-25 18:08:15,089 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=110, PETRI_PLACES=36, PETRI_TRANSITIONS=24} [2022-11-25 18:08:15,090 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 2 predicate places. [2022-11-25 18:08:15,090 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 24 transitions, 110 flow [2022-11-25 18:08:15,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.25) internal successors, (385), 4 states have internal predecessors, (385), 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) [2022-11-25 18:08:15,091 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:08:15,091 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:08:15,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 18:08:15,091 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-25 18:08:15,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:15,092 INFO L85 PathProgramCache]: Analyzing trace with hash 2089420671, now seen corresponding path program 2 times [2022-11-25 18:08:15,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:15,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672508467] [2022-11-25 18:08:15,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:15,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:15,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:15,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:15,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:15,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672508467] [2022-11-25 18:08:15,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672508467] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:15,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:15,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:08:15,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575650822] [2022-11-25 18:08:15,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:15,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:08:15,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:15,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:08:15,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:08:15,233 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 201 [2022-11-25 18:08:15,234 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 24 transitions, 110 flow. Second operand has 6 states, 6 states have (on average 94.0) internal successors, (564), 6 states have internal predecessors, (564), 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) [2022-11-25 18:08:15,234 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:08:15,235 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 201 [2022-11-25 18:08:15,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:08:15,337 INFO L130 PetriNetUnfolder]: 85/183 cut-off events. [2022-11-25 18:08:15,337 INFO L131 PetriNetUnfolder]: For 197/208 co-relation queries the response was YES. [2022-11-25 18:08:15,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 589 conditions, 183 events. 85/183 cut-off events. For 197/208 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 671 event pairs, 18 based on Foata normal form. 16/190 useless extension candidates. Maximal degree in co-relation 580. Up to 64 conditions per place. [2022-11-25 18:08:15,339 INFO L137 encePairwiseOnDemand]: 195/201 looper letters, 21 selfloop transitions, 10 changer transitions 9/43 dead transitions. [2022-11-25 18:08:15,339 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 43 transitions, 265 flow [2022-11-25 18:08:15,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:08:15,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-25 18:08:15,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 685 transitions. [2022-11-25 18:08:15,342 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48685145700071075 [2022-11-25 18:08:15,342 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 685 transitions. [2022-11-25 18:08:15,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 685 transitions. [2022-11-25 18:08:15,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:08:15,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 685 transitions. [2022-11-25 18:08:15,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 97.85714285714286) internal successors, (685), 7 states have internal predecessors, (685), 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) [2022-11-25 18:08:15,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 201.0) internal successors, (1608), 8 states have internal predecessors, (1608), 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) [2022-11-25 18:08:15,368 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 201.0) internal successors, (1608), 8 states have internal predecessors, (1608), 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) [2022-11-25 18:08:15,368 INFO L175 Difference]: Start difference. First operand has 36 places, 24 transitions, 110 flow. Second operand 7 states and 685 transitions. [2022-11-25 18:08:15,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 43 transitions, 265 flow [2022-11-25 18:08:15,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 43 transitions, 249 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-11-25 18:08:15,371 INFO L231 Difference]: Finished difference. Result has 44 places, 23 transitions, 129 flow [2022-11-25 18:08:15,371 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=129, PETRI_PLACES=44, PETRI_TRANSITIONS=23} [2022-11-25 18:08:15,372 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 10 predicate places. [2022-11-25 18:08:15,372 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 23 transitions, 129 flow [2022-11-25 18:08:15,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 94.0) internal successors, (564), 6 states have internal predecessors, (564), 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) [2022-11-25 18:08:15,373 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:08:15,373 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:08:15,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 18:08:15,373 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-25 18:08:15,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:15,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1306833400, now seen corresponding path program 1 times [2022-11-25 18:08:15,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:15,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100145366] [2022-11-25 18:08:15,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:15,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:15,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:15,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:15,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:15,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100145366] [2022-11-25 18:08:15,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100145366] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:15,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:15,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:08:15,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719856221] [2022-11-25 18:08:15,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:15,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:08:15,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:15,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:08:15,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:08:15,567 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 201 [2022-11-25 18:08:15,568 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 23 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 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) [2022-11-25 18:08:15,568 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:08:15,568 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 201 [2022-11-25 18:08:15,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:08:15,661 INFO L130 PetriNetUnfolder]: 133/265 cut-off events. [2022-11-25 18:08:15,662 INFO L131 PetriNetUnfolder]: For 384/384 co-relation queries the response was YES. [2022-11-25 18:08:15,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 892 conditions, 265 events. 133/265 cut-off events. For 384/384 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 953 event pairs, 51 based on Foata normal form. 1/266 useless extension candidates. Maximal degree in co-relation 880. Up to 112 conditions per place. [2022-11-25 18:08:15,664 INFO L137 encePairwiseOnDemand]: 197/201 looper letters, 33 selfloop transitions, 3 changer transitions 7/43 dead transitions. [2022-11-25 18:08:15,664 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 43 transitions, 341 flow [2022-11-25 18:08:15,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:08:15,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 18:08:15,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 386 transitions. [2022-11-25 18:08:15,666 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48009950248756217 [2022-11-25 18:08:15,667 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 386 transitions. [2022-11-25 18:08:15,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 386 transitions. [2022-11-25 18:08:15,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:08:15,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 386 transitions. [2022-11-25 18:08:15,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 96.5) internal successors, (386), 4 states have internal predecessors, (386), 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) [2022-11-25 18:08:15,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 201.0) internal successors, (1005), 5 states have internal predecessors, (1005), 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) [2022-11-25 18:08:15,670 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 201.0) internal successors, (1005), 5 states have internal predecessors, (1005), 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) [2022-11-25 18:08:15,671 INFO L175 Difference]: Start difference. First operand has 44 places, 23 transitions, 129 flow. Second operand 4 states and 386 transitions. [2022-11-25 18:08:15,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 43 transitions, 341 flow [2022-11-25 18:08:15,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 43 transitions, 277 flow, removed 16 selfloop flow, removed 7 redundant places. [2022-11-25 18:08:15,674 INFO L231 Difference]: Finished difference. Result has 39 places, 25 transitions, 116 flow [2022-11-25 18:08:15,674 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=116, PETRI_PLACES=39, PETRI_TRANSITIONS=25} [2022-11-25 18:08:15,675 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 5 predicate places. [2022-11-25 18:08:15,675 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 25 transitions, 116 flow [2022-11-25 18:08:15,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 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) [2022-11-25 18:08:15,676 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:08:15,676 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:08:15,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 18:08:15,677 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-25 18:08:15,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:08:15,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1003452194, now seen corresponding path program 2 times [2022-11-25 18:08:15,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:08:15,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420980085] [2022-11-25 18:08:15,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:08:15,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:08:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:08:15,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:08:15,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:08:15,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420980085] [2022-11-25 18:08:15,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420980085] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:08:15,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:08:15,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:08:15,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821453304] [2022-11-25 18:08:15,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:08:15,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:08:15,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:08:15,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:08:15,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:08:15,808 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 201 [2022-11-25 18:08:15,808 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 25 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 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) [2022-11-25 18:08:15,809 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:08:15,809 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 201 [2022-11-25 18:08:15,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:08:15,918 INFO L130 PetriNetUnfolder]: 145/292 cut-off events. [2022-11-25 18:08:15,918 INFO L131 PetriNetUnfolder]: For 326/326 co-relation queries the response was YES. [2022-11-25 18:08:15,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1001 conditions, 292 events. 145/292 cut-off events. For 326/326 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1202 event pairs, 27 based on Foata normal form. 1/293 useless extension candidates. Maximal degree in co-relation 991. Up to 192 conditions per place. [2022-11-25 18:08:15,920 INFO L137 encePairwiseOnDemand]: 196/201 looper letters, 0 selfloop transitions, 0 changer transitions 51/51 dead transitions. [2022-11-25 18:08:15,920 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 51 transitions, 350 flow [2022-11-25 18:08:15,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:08:15,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 18:08:15,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 390 transitions. [2022-11-25 18:08:15,922 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48507462686567165 [2022-11-25 18:08:15,922 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 390 transitions. [2022-11-25 18:08:15,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 390 transitions. [2022-11-25 18:08:15,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:08:15,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 390 transitions. [2022-11-25 18:08:15,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 97.5) internal successors, (390), 4 states have internal predecessors, (390), 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) [2022-11-25 18:08:15,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 201.0) internal successors, (1005), 5 states have internal predecessors, (1005), 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) [2022-11-25 18:08:15,926 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 201.0) internal successors, (1005), 5 states have internal predecessors, (1005), 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) [2022-11-25 18:08:15,927 INFO L175 Difference]: Start difference. First operand has 39 places, 25 transitions, 116 flow. Second operand 4 states and 390 transitions. [2022-11-25 18:08:15,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 51 transitions, 350 flow [2022-11-25 18:08:15,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 51 transitions, 348 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 18:08:15,930 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2022-11-25 18:08:15,930 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2022-11-25 18:08:15,930 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 6 predicate places. [2022-11-25 18:08:15,931 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2022-11-25 18:08:15,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 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) [2022-11-25 18:08:15,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 11 remaining) [2022-11-25 18:08:15,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2022-11-25 18:08:15,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2022-11-25 18:08:15,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2022-11-25 18:08:15,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2022-11-25 18:08:15,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2022-11-25 18:08:15,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (4 of 11 remaining) [2022-11-25 18:08:15,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (3 of 11 remaining) [2022-11-25 18:08:15,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2022-11-25 18:08:15,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2022-11-25 18:08:15,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2022-11-25 18:08:15,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 18:08:15,937 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1] [2022-11-25 18:08:15,941 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 18:08:15,941 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:08:15,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:08:15 BasicIcfg [2022-11-25 18:08:15,945 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:08:15,946 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:08:15,946 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:08:15,946 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:08:15,946 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:08:08" (3/4) ... [2022-11-25 18:08:15,949 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 18:08:15,956 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-25 18:08:15,956 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-25 18:08:15,957 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-25 18:08:15,961 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-25 18:08:15,961 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-25 18:08:15,962 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 18:08:15,962 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 18:08:16,015 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f673a0b-2a11-4d09-973f-3445b5ef0a9e/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 18:08:16,016 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:08:16,016 INFO L158 Benchmark]: Toolchain (without parser) took 8537.12ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 70.7MB in the beginning and 52.2MB in the end (delta: 18.5MB). Peak memory consumption was 95.4MB. Max. memory is 16.1GB. [2022-11-25 18:08:16,017 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 70.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:08:16,017 INFO L158 Benchmark]: CACSL2BoogieTranslator took 747.25ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 70.4MB in the beginning and 128.7MB in the end (delta: -58.3MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2022-11-25 18:08:16,017 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.53ms. Allocated memory is still 159.4MB. Free memory was 128.7MB in the beginning and 126.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:08:16,017 INFO L158 Benchmark]: Boogie Preprocessor took 47.42ms. Allocated memory is still 159.4MB. Free memory was 126.9MB in the beginning and 124.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:08:16,018 INFO L158 Benchmark]: RCFGBuilder took 542.03ms. Allocated memory is still 159.4MB. Free memory was 124.8MB in the beginning and 110.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 18:08:16,018 INFO L158 Benchmark]: TraceAbstraction took 7055.87ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 110.1MB in the beginning and 55.3MB in the end (delta: 54.8MB). Peak memory consumption was 88.2MB. Max. memory is 16.1GB. [2022-11-25 18:08:16,018 INFO L158 Benchmark]: Witness Printer took 70.15ms. Allocated memory is still 192.9MB. Free memory was 55.3MB in the beginning and 52.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:08:16,021 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 70.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 747.25ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 70.4MB in the beginning and 128.7MB in the end (delta: -58.3MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.53ms. Allocated memory is still 159.4MB. Free memory was 128.7MB in the beginning and 126.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.42ms. Allocated memory is still 159.4MB. Free memory was 126.9MB in the beginning and 124.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 542.03ms. Allocated memory is still 159.4MB. Free memory was 124.8MB in the beginning and 110.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 7055.87ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 110.1MB in the beginning and 55.3MB in the end (delta: 54.8MB). Peak memory consumption was 88.2MB. Max. memory is 16.1GB. * Witness Printer took 70.15ms. Allocated memory is still 192.9MB. Free memory was 55.3MB in the beginning and 52.2MB in the end (delta: 3.1MB). 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: 3.7s, 103 PlacesBefore, 34 PlacesAfterwards, 95 TransitionsBefore, 24 TransitionsAfterwards, 1620 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 2 ChoiceCompositions, 98 TotalNumberOfCompositions, 3246 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2208, independent: 2109, independent conditional: 0, independent unconditional: 2109, dependent: 99, dependent conditional: 0, dependent unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1235, independent: 1203, independent conditional: 0, independent unconditional: 1203, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1235, independent: 1196, independent conditional: 0, independent unconditional: 1196, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 39, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 121, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 96, dependent conditional: 0, dependent unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2208, independent: 906, independent conditional: 0, independent unconditional: 906, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 1235, unknown conditional: 0, unknown unconditional: 1235] , Statistics on independence cache: Total cache size (in pairs): 93, Positive cache size: 82, Positive conditional cache size: 0, Positive unconditional cache size: 82, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 784]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 126 locations, 11 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: 6.9s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 265 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 193 mSDsluCounter, 57 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 595 IncrementalHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 25 mSDtfsCounter, 595 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred in iteration=6, InterpolantAutomatonStates: 37, 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, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 494 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-25 18:08:16,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f673a0b-2a11-4d09-973f-3445b5ef0a9e/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE