./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 390a12f9f7a5c311c1cdcecac54987f654ebac30db2fbb7661324a5599d93cf6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 14:12:33,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:12:33,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:12:33,803 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:12:33,803 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:12:33,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:12:33,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:12:33,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:12:33,809 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:12:33,810 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:12:33,811 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:12:33,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:12:33,812 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:12:33,813 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:12:33,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:12:33,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:12:33,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:12:33,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:12:33,819 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:12:33,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:12:33,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:12:33,824 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:12:33,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:12:33,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:12:33,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:12:33,830 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:12:33,830 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:12:33,831 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:12:33,832 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:12:33,833 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:12:33,833 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:12:33,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:12:33,835 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:12:33,836 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:12:33,837 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:12:33,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:12:33,837 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:12:33,838 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:12:33,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:12:33,839 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:12:33,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:12:33,840 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 14:12:33,862 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:12:33,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:12:33,863 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:12:33,863 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:12:33,864 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:12:33,864 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:12:33,865 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:12:33,865 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:12:33,865 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:12:33,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:12:33,865 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:12:33,866 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 14:12:33,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:12:33,866 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:12:33,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:12:33,866 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 14:12:33,866 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 14:12:33,866 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 14:12:33,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:12:33,867 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 14:12:33,867 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:12:33,867 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:12:33,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:12:33,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:12:33,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:12:33,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:12:33,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:12:33,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:12:33,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:12:33,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:12:33,868 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:12:33,869 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:12:33,869 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:12:33,869 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:12:33,869 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_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 390a12f9f7a5c311c1cdcecac54987f654ebac30db2fbb7661324a5599d93cf6 [2022-12-13 14:12:34,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:12:34,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:12:34,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:12:34,052 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:12:34,053 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:12:34,053 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i [2022-12-13 14:12:36,587 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:12:36,775 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:12:36,775 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/sv-benchmarks/c/pthread-wmm/safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i [2022-12-13 14:12:36,783 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/data/98b729c8b/7ebeff5af49641519e060a2cb4029ac2/FLAGe1632fa10 [2022-12-13 14:12:37,180 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/data/98b729c8b/7ebeff5af49641519e060a2cb4029ac2 [2022-12-13 14:12:37,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:12:37,187 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:12:37,188 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:12:37,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:12:37,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:12:37,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:12:37" (1/1) ... [2022-12-13 14:12:37,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@505cb2c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:12:37, skipping insertion in model container [2022-12-13 14:12:37,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:12:37" (1/1) ... [2022-12-13 14:12:37,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:12:37,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:12:37,334 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_899821f6-7ee4-47a9-b6ff-44a79e8bba16/sv-benchmarks/c/pthread-wmm/safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i[1019,1032] [2022-12-13 14:12:37,417 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:37,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:37,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:37,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:37,425 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:37,425 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:37,425 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:37,425 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:37,426 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:37,428 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:37,428 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:37,428 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:37,428 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:37,430 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:37,430 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:37,431 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:37,431 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:37,431 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:37,432 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:37,432 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:37,432 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:37,434 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:37,434 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:37,434 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:37,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:37,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:37,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:37,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:37,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:37,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:37,443 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:12:37,451 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:12:37,459 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_899821f6-7ee4-47a9-b6ff-44a79e8bba16/sv-benchmarks/c/pthread-wmm/safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i[1019,1032] [2022-12-13 14:12:37,478 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:37,479 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:37,479 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:37,485 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:37,485 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:37,485 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:37,485 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:37,485 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:37,486 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:37,487 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:37,487 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:37,487 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:37,487 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:37,489 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:37,489 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:37,490 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:37,490 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:37,490 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:37,490 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:37,491 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:37,491 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:37,493 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:37,493 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:37,493 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:37,496 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:37,496 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:37,496 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:37,498 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:37,498 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:37,499 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:37,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:12:37,521 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:12:37,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:12:37 WrapperNode [2022-12-13 14:12:37,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:12:37,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:12:37,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:12:37,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:12:37,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:12:37" (1/1) ... [2022-12-13 14:12:37,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:12:37" (1/1) ... [2022-12-13 14:12:37,555 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 128 [2022-12-13 14:12:37,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:12:37,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:12:37,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:12:37,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:12:37,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:12:37" (1/1) ... [2022-12-13 14:12:37,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:12:37" (1/1) ... [2022-12-13 14:12:37,565 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:12:37" (1/1) ... [2022-12-13 14:12:37,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:12:37" (1/1) ... [2022-12-13 14:12:37,571 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:12:37" (1/1) ... [2022-12-13 14:12:37,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:12:37" (1/1) ... [2022-12-13 14:12:37,573 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:12:37" (1/1) ... [2022-12-13 14:12:37,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:12:37" (1/1) ... [2022-12-13 14:12:37,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:12:37,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:12:37,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:12:37,577 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:12:37,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:12:37" (1/1) ... [2022-12-13 14:12:37,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:12:37,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:12:37,602 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:12:37,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:12:37,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 14:12:37,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 14:12:37,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:12:37,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 14:12:37,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 14:12:37,629 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 14:12:37,629 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 14:12:37,629 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 14:12:37,629 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 14:12:37,629 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 14:12:37,629 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 14:12:37,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:12:37,629 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 14:12:37,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:12:37,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:12:37,631 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 14:12:37,742 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:12:37,744 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:12:38,007 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:12:38,120 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:12:38,120 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 14:12:38,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:12:38 BoogieIcfgContainer [2022-12-13 14:12:38,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:12:38,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:12:38,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:12:38,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:12:38,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:12:37" (1/3) ... [2022-12-13 14:12:38,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a862004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:12:38, skipping insertion in model container [2022-12-13 14:12:38,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:12:37" (2/3) ... [2022-12-13 14:12:38,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a862004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:12:38, skipping insertion in model container [2022-12-13 14:12:38,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:12:38" (3/3) ... [2022-12-13 14:12:38,132 INFO L112 eAbstractionObserver]: Analyzing ICFG safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i [2022-12-13 14:12:38,151 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:12:38,151 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-12-13 14:12:38,151 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 14:12:38,203 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 14:12:38,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 124 transitions, 263 flow [2022-12-13 14:12:38,268 INFO L130 PetriNetUnfolder]: 2/121 cut-off events. [2022-12-13 14:12:38,268 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:12:38,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 121 events. 2/121 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2022-12-13 14:12:38,272 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 124 transitions, 263 flow [2022-12-13 14:12:38,276 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 121 transitions, 251 flow [2022-12-13 14:12:38,279 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 14:12:38,286 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 121 transitions, 251 flow [2022-12-13 14:12:38,288 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 121 transitions, 251 flow [2022-12-13 14:12:38,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 121 transitions, 251 flow [2022-12-13 14:12:38,310 INFO L130 PetriNetUnfolder]: 2/121 cut-off events. [2022-12-13 14:12:38,310 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:12:38,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 121 events. 2/121 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 79 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2022-12-13 14:12:38,312 INFO L119 LiptonReduction]: Number of co-enabled transitions 2164 [2022-12-13 14:12:41,251 INFO L134 LiptonReduction]: Checked pairs total: 5211 [2022-12-13 14:12:41,252 INFO L136 LiptonReduction]: Total number of compositions: 124 [2022-12-13 14:12:41,264 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:12:41,269 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;@43497700, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:12:41,269 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-12-13 14:12:41,271 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-12-13 14:12:41,271 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:12:41,272 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:12:41,272 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 14:12:41,273 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 14:12:41,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:12:41,277 INFO L85 PathProgramCache]: Analyzing trace with hash 529, now seen corresponding path program 1 times [2022-12-13 14:12:41,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:12:41,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945018677] [2022-12-13 14:12:41,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:12:41,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:12:41,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:12:41,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:12:41,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:12:41,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945018677] [2022-12-13 14:12:41,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945018677] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:12:41,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:12:41,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 14:12:41,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250153933] [2022-12-13 14:12:41,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:12:41,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 14:12:41,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:12:41,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 14:12:41,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 14:12:41,401 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 248 [2022-12-13 14:12:41,402 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 31 transitions, 71 flow. Second operand has 2 states, 2 states have (on average 112.5) internal successors, (225), 2 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:41,402 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:12:41,403 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 248 [2022-12-13 14:12:41,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:12:41,653 INFO L130 PetriNetUnfolder]: 1277/1921 cut-off events. [2022-12-13 14:12:41,653 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-12-13 14:12:41,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3862 conditions, 1921 events. 1277/1921 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 8919 event pairs, 1277 based on Foata normal form. 0/1613 useless extension candidates. Maximal degree in co-relation 3851. Up to 1887 conditions per place. [2022-12-13 14:12:41,663 INFO L137 encePairwiseOnDemand]: 241/248 looper letters, 22 selfloop transitions, 0 changer transitions 0/24 dead transitions. [2022-12-13 14:12:41,663 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 24 transitions, 101 flow [2022-12-13 14:12:41,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 14:12:41,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 14:12:41,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 253 transitions. [2022-12-13 14:12:41,673 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5100806451612904 [2022-12-13 14:12:41,674 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 253 transitions. [2022-12-13 14:12:41,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 253 transitions. [2022-12-13 14:12:41,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:12:41,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 253 transitions. [2022-12-13 14:12:41,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 126.5) internal successors, (253), 2 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:41,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:41,682 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:41,683 INFO L175 Difference]: Start difference. First operand has 40 places, 31 transitions, 71 flow. Second operand 2 states and 253 transitions. [2022-12-13 14:12:41,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 24 transitions, 101 flow [2022-12-13 14:12:41,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 24 transitions, 98 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 14:12:41,687 INFO L231 Difference]: Finished difference. Result has 32 places, 24 transitions, 54 flow [2022-12-13 14:12:41,688 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=31, 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=2, PETRI_FLOW=54, PETRI_PLACES=32, PETRI_TRANSITIONS=24} [2022-12-13 14:12:41,691 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, -8 predicate places. [2022-12-13 14:12:41,691 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 24 transitions, 54 flow [2022-12-13 14:12:41,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 112.5) internal successors, (225), 2 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:41,691 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:12:41,692 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 14:12:41,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 14:12:41,692 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 14:12:41,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:12:41,692 INFO L85 PathProgramCache]: Analyzing trace with hash 501014054, now seen corresponding path program 1 times [2022-12-13 14:12:41,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:12:41,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48328686] [2022-12-13 14:12:41,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:12:41,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:12:41,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:12:41,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:12:41,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:12:41,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48328686] [2022-12-13 14:12:41,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48328686] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:12:41,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:12:41,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 14:12:41,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995275313] [2022-12-13 14:12:41,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:12:41,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:12:41,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:12:41,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:12:41,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:12:41,876 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 248 [2022-12-13 14:12:41,876 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 24 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:41,877 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:12:41,877 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 248 [2022-12-13 14:12:41,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:12:42,091 INFO L130 PetriNetUnfolder]: 999/1616 cut-off events. [2022-12-13 14:12:42,091 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:12:42,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3149 conditions, 1616 events. 999/1616 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 8405 event pairs, 165 based on Foata normal form. 0/1484 useless extension candidates. Maximal degree in co-relation 3146. Up to 1195 conditions per place. [2022-12-13 14:12:42,097 INFO L137 encePairwiseOnDemand]: 245/248 looper letters, 31 selfloop transitions, 2 changer transitions 2/37 dead transitions. [2022-12-13 14:12:42,097 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 37 transitions, 152 flow [2022-12-13 14:12:42,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:12:42,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 14:12:42,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 369 transitions. [2022-12-13 14:12:42,099 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4959677419354839 [2022-12-13 14:12:42,099 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 369 transitions. [2022-12-13 14:12:42,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 369 transitions. [2022-12-13 14:12:42,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:12:42,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 369 transitions. [2022-12-13 14:12:42,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:42,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:42,102 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:42,102 INFO L175 Difference]: Start difference. First operand has 32 places, 24 transitions, 54 flow. Second operand 3 states and 369 transitions. [2022-12-13 14:12:42,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 37 transitions, 152 flow [2022-12-13 14:12:42,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 37 transitions, 152 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 14:12:42,103 INFO L231 Difference]: Finished difference. Result has 33 places, 22 transitions, 54 flow [2022-12-13 14:12:42,103 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=33, PETRI_TRANSITIONS=22} [2022-12-13 14:12:42,103 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, -7 predicate places. [2022-12-13 14:12:42,104 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 22 transitions, 54 flow [2022-12-13 14:12:42,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:42,104 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:12:42,104 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:12:42,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 14:12:42,104 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 14:12:42,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:12:42,105 INFO L85 PathProgramCache]: Analyzing trace with hash 224676719, now seen corresponding path program 1 times [2022-12-13 14:12:42,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:12:42,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785223303] [2022-12-13 14:12:42,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:12:42,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:12:42,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:12:42,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:12:42,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:12:42,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785223303] [2022-12-13 14:12:42,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785223303] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:12:42,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:12:42,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 14:12:42,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486559905] [2022-12-13 14:12:42,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:12:42,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:12:42,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:12:42,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:12:42,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:12:42,257 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 248 [2022-12-13 14:12:42,258 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 22 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:42,258 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:12:42,258 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 248 [2022-12-13 14:12:42,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:12:42,620 INFO L130 PetriNetUnfolder]: 2171/3248 cut-off events. [2022-12-13 14:12:42,620 INFO L131 PetriNetUnfolder]: For 173/173 co-relation queries the response was YES. [2022-12-13 14:12:42,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6743 conditions, 3248 events. 2171/3248 cut-off events. For 173/173 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 16077 event pairs, 709 based on Foata normal form. 0/3158 useless extension candidates. Maximal degree in co-relation 6739. Up to 1850 conditions per place. [2022-12-13 14:12:42,635 INFO L137 encePairwiseOnDemand]: 240/248 looper letters, 34 selfloop transitions, 7 changer transitions 0/41 dead transitions. [2022-12-13 14:12:42,635 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 41 transitions, 180 flow [2022-12-13 14:12:42,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:12:42,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 14:12:42,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 354 transitions. [2022-12-13 14:12:42,637 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47580645161290325 [2022-12-13 14:12:42,638 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 354 transitions. [2022-12-13 14:12:42,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 354 transitions. [2022-12-13 14:12:42,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:12:42,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 354 transitions. [2022-12-13 14:12:42,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:42,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:42,642 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:42,642 INFO L175 Difference]: Start difference. First operand has 33 places, 22 transitions, 54 flow. Second operand 3 states and 354 transitions. [2022-12-13 14:12:42,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 41 transitions, 180 flow [2022-12-13 14:12:42,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 41 transitions, 174 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 14:12:42,644 INFO L231 Difference]: Finished difference. Result has 34 places, 28 transitions, 104 flow [2022-12-13 14:12:42,644 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=34, PETRI_TRANSITIONS=28} [2022-12-13 14:12:42,645 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, -6 predicate places. [2022-12-13 14:12:42,645 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 28 transitions, 104 flow [2022-12-13 14:12:42,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:42,645 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:12:42,645 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:12:42,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 14:12:42,646 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 14:12:42,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:12:42,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1624957923, now seen corresponding path program 1 times [2022-12-13 14:12:42,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:12:42,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132035256] [2022-12-13 14:12:42,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:12:42,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:12:42,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:12:42,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:12:42,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:12:42,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132035256] [2022-12-13 14:12:42,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132035256] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:12:42,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:12:42,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:12:42,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43751869] [2022-12-13 14:12:42,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:12:42,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 14:12:42,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:12:42,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 14:12:42,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 14:12:42,764 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 248 [2022-12-13 14:12:42,765 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 28 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 106.5) internal successors, (426), 4 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:42,766 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:12:42,766 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 248 [2022-12-13 14:12:42,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:12:43,107 INFO L130 PetriNetUnfolder]: 2117/3167 cut-off events. [2022-12-13 14:12:43,108 INFO L131 PetriNetUnfolder]: For 1503/1503 co-relation queries the response was YES. [2022-12-13 14:12:43,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8304 conditions, 3167 events. 2117/3167 cut-off events. For 1503/1503 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 15377 event pairs, 268 based on Foata normal form. 12/3179 useless extension candidates. Maximal degree in co-relation 8299. Up to 1625 conditions per place. [2022-12-13 14:12:43,119 INFO L137 encePairwiseOnDemand]: 240/248 looper letters, 46 selfloop transitions, 11 changer transitions 0/57 dead transitions. [2022-12-13 14:12:43,119 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 57 transitions, 314 flow [2022-12-13 14:12:43,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 14:12:43,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 14:12:43,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 469 transitions. [2022-12-13 14:12:43,121 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4727822580645161 [2022-12-13 14:12:43,121 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 469 transitions. [2022-12-13 14:12:43,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 469 transitions. [2022-12-13 14:12:43,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:12:43,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 469 transitions. [2022-12-13 14:12:43,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 117.25) internal successors, (469), 4 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:43,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:43,124 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:43,124 INFO L175 Difference]: Start difference. First operand has 34 places, 28 transitions, 104 flow. Second operand 4 states and 469 transitions. [2022-12-13 14:12:43,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 57 transitions, 314 flow [2022-12-13 14:12:43,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 57 transitions, 288 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 14:12:43,129 INFO L231 Difference]: Finished difference. Result has 38 places, 36 transitions, 180 flow [2022-12-13 14:12:43,129 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=180, PETRI_PLACES=38, PETRI_TRANSITIONS=36} [2022-12-13 14:12:43,129 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2022-12-13 14:12:43,129 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 36 transitions, 180 flow [2022-12-13 14:12:43,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 106.5) internal successors, (426), 4 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:43,130 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:12:43,130 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:12:43,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 14:12:43,130 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 14:12:43,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:12:43,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1624955737, now seen corresponding path program 1 times [2022-12-13 14:12:43,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:12:43,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674164084] [2022-12-13 14:12:43,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:12:43,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:12:43,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:12:43,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:12:43,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:12:43,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674164084] [2022-12-13 14:12:43,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674164084] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:12:43,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:12:43,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:12:43,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822748935] [2022-12-13 14:12:43,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:12:43,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:12:43,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:12:43,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:12:43,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:12:43,511 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 248 [2022-12-13 14:12:43,512 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 36 transitions, 180 flow. Second operand has 6 states, 6 states have (on average 99.66666666666667) internal successors, (598), 6 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:43,512 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:12:43,512 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 248 [2022-12-13 14:12:43,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:12:43,926 INFO L130 PetriNetUnfolder]: 1509/2315 cut-off events. [2022-12-13 14:12:43,926 INFO L131 PetriNetUnfolder]: For 2107/2197 co-relation queries the response was YES. [2022-12-13 14:12:43,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6579 conditions, 2315 events. 1509/2315 cut-off events. For 2107/2197 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 11483 event pairs, 519 based on Foata normal form. 202/2459 useless extension candidates. Maximal degree in co-relation 6572. Up to 1573 conditions per place. [2022-12-13 14:12:43,934 INFO L137 encePairwiseOnDemand]: 243/248 looper letters, 32 selfloop transitions, 3 changer transitions 19/61 dead transitions. [2022-12-13 14:12:43,934 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 61 transitions, 396 flow [2022-12-13 14:12:43,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:12:43,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 14:12:43,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 626 transitions. [2022-12-13 14:12:43,936 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4206989247311828 [2022-12-13 14:12:43,936 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 626 transitions. [2022-12-13 14:12:43,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 626 transitions. [2022-12-13 14:12:43,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:12:43,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 626 transitions. [2022-12-13 14:12:43,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 104.33333333333333) internal successors, (626), 6 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:43,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:43,940 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:43,940 INFO L175 Difference]: Start difference. First operand has 38 places, 36 transitions, 180 flow. Second operand 6 states and 626 transitions. [2022-12-13 14:12:43,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 61 transitions, 396 flow [2022-12-13 14:12:43,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 61 transitions, 396 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 14:12:43,943 INFO L231 Difference]: Finished difference. Result has 42 places, 31 transitions, 160 flow [2022-12-13 14:12:43,943 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=160, PETRI_PLACES=42, PETRI_TRANSITIONS=31} [2022-12-13 14:12:43,944 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, 2 predicate places. [2022-12-13 14:12:43,944 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 160 flow [2022-12-13 14:12:43,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 99.66666666666667) internal successors, (598), 6 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:43,944 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:12:43,944 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:12:43,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 14:12:43,945 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 14:12:43,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:12:43,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1716358856, now seen corresponding path program 1 times [2022-12-13 14:12:43,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:12:43,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270304325] [2022-12-13 14:12:43,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:12:43,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:12:43,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:12:44,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:12:44,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:12:44,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270304325] [2022-12-13 14:12:44,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270304325] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:12:44,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:12:44,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:12:44,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313484779] [2022-12-13 14:12:44,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:12:44,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:12:44,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:12:44,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:12:44,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:12:44,053 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 248 [2022-12-13 14:12:44,053 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 160 flow. Second operand has 5 states, 5 states have (on average 106.4) internal successors, (532), 5 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:44,053 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:12:44,053 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 248 [2022-12-13 14:12:44,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:12:44,314 INFO L130 PetriNetUnfolder]: 1451/2214 cut-off events. [2022-12-13 14:12:44,314 INFO L131 PetriNetUnfolder]: For 1962/1962 co-relation queries the response was YES. [2022-12-13 14:12:44,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6113 conditions, 2214 events. 1451/2214 cut-off events. For 1962/1962 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 10267 event pairs, 323 based on Foata normal form. 78/2292 useless extension candidates. Maximal degree in co-relation 6105. Up to 1320 conditions per place. [2022-12-13 14:12:44,319 INFO L137 encePairwiseOnDemand]: 241/248 looper letters, 37 selfloop transitions, 8 changer transitions 12/57 dead transitions. [2022-12-13 14:12:44,319 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 57 transitions, 360 flow [2022-12-13 14:12:44,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:12:44,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 14:12:44,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 570 transitions. [2022-12-13 14:12:44,321 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4596774193548387 [2022-12-13 14:12:44,321 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 570 transitions. [2022-12-13 14:12:44,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 570 transitions. [2022-12-13 14:12:44,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:12:44,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 570 transitions. [2022-12-13 14:12:44,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:44,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 248.0) internal successors, (1488), 6 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:44,324 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 248.0) internal successors, (1488), 6 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:44,324 INFO L175 Difference]: Start difference. First operand has 42 places, 31 transitions, 160 flow. Second operand 5 states and 570 transitions. [2022-12-13 14:12:44,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 57 transitions, 360 flow [2022-12-13 14:12:44,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 57 transitions, 354 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 14:12:44,328 INFO L231 Difference]: Finished difference. Result has 43 places, 28 transitions, 166 flow [2022-12-13 14:12:44,328 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=166, PETRI_PLACES=43, PETRI_TRANSITIONS=28} [2022-12-13 14:12:44,328 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, 3 predicate places. [2022-12-13 14:12:44,328 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 28 transitions, 166 flow [2022-12-13 14:12:44,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 106.4) internal successors, (532), 5 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:44,329 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:12:44,329 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:12:44,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 14:12:44,329 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 14:12:44,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:12:44,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1689642964, now seen corresponding path program 1 times [2022-12-13 14:12:44,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:12:44,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983746601] [2022-12-13 14:12:44,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:12:44,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:12:44,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:12:44,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:12:44,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:12:44,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983746601] [2022-12-13 14:12:44,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983746601] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:12:44,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:12:44,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:12:44,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947747817] [2022-12-13 14:12:44,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:12:44,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 14:12:44,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:12:44,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 14:12:44,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 14:12:44,480 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 248 [2022-12-13 14:12:44,480 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 28 transitions, 166 flow. Second operand has 4 states, 4 states have (on average 107.25) internal successors, (429), 4 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:44,481 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:12:44,481 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 248 [2022-12-13 14:12:44,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:12:44,660 INFO L130 PetriNetUnfolder]: 649/1010 cut-off events. [2022-12-13 14:12:44,660 INFO L131 PetriNetUnfolder]: For 1274/1274 co-relation queries the response was YES. [2022-12-13 14:12:44,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3138 conditions, 1010 events. 649/1010 cut-off events. For 1274/1274 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3922 event pairs, 172 based on Foata normal form. 9/1019 useless extension candidates. Maximal degree in co-relation 3128. Up to 553 conditions per place. [2022-12-13 14:12:44,664 INFO L137 encePairwiseOnDemand]: 243/248 looper letters, 37 selfloop transitions, 6 changer transitions 0/43 dead transitions. [2022-12-13 14:12:44,664 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 43 transitions, 292 flow [2022-12-13 14:12:44,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 14:12:44,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 14:12:44,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 455 transitions. [2022-12-13 14:12:44,666 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4586693548387097 [2022-12-13 14:12:44,666 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 455 transitions. [2022-12-13 14:12:44,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 455 transitions. [2022-12-13 14:12:44,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:12:44,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 455 transitions. [2022-12-13 14:12:44,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:44,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:44,670 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 248.0) internal successors, (1240), 5 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:44,670 INFO L175 Difference]: Start difference. First operand has 43 places, 28 transitions, 166 flow. Second operand 4 states and 455 transitions. [2022-12-13 14:12:44,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 43 transitions, 292 flow [2022-12-13 14:12:44,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 43 transitions, 273 flow, removed 1 selfloop flow, removed 4 redundant places. [2022-12-13 14:12:44,676 INFO L231 Difference]: Finished difference. Result has 43 places, 28 transitions, 165 flow [2022-12-13 14:12:44,676 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=165, PETRI_PLACES=43, PETRI_TRANSITIONS=28} [2022-12-13 14:12:44,677 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, 3 predicate places. [2022-12-13 14:12:44,677 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 28 transitions, 165 flow [2022-12-13 14:12:44,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.25) internal successors, (429), 4 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:44,678 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:12:44,678 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:12:44,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 14:12:44,678 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 14:12:44,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:12:44,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1689641290, now seen corresponding path program 1 times [2022-12-13 14:12:44,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:12:44,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179344063] [2022-12-13 14:12:44,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:12:44,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:12:44,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:12:44,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:12:44,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:12:44,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179344063] [2022-12-13 14:12:44,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179344063] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:12:44,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:12:44,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 14:12:44,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659009109] [2022-12-13 14:12:44,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:12:44,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:12:44,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:12:44,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:12:44,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:12:44,805 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 248 [2022-12-13 14:12:44,806 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 28 transitions, 165 flow. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:44,806 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:12:44,806 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 248 [2022-12-13 14:12:44,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:12:44,925 INFO L130 PetriNetUnfolder]: 541/876 cut-off events. [2022-12-13 14:12:44,925 INFO L131 PetriNetUnfolder]: For 1148/1161 co-relation queries the response was YES. [2022-12-13 14:12:44,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2721 conditions, 876 events. 541/876 cut-off events. For 1148/1161 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3653 event pairs, 252 based on Foata normal form. 10/864 useless extension candidates. Maximal degree in co-relation 2710. Up to 722 conditions per place. [2022-12-13 14:12:44,928 INFO L137 encePairwiseOnDemand]: 245/248 looper letters, 31 selfloop transitions, 5 changer transitions 0/40 dead transitions. [2022-12-13 14:12:44,928 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 40 transitions, 272 flow [2022-12-13 14:12:44,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:12:44,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 14:12:44,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2022-12-13 14:12:44,930 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4852150537634409 [2022-12-13 14:12:44,930 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 361 transitions. [2022-12-13 14:12:44,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 361 transitions. [2022-12-13 14:12:44,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:12:44,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 361 transitions. [2022-12-13 14:12:44,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:44,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:44,933 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 248.0) internal successors, (992), 4 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:44,933 INFO L175 Difference]: Start difference. First operand has 43 places, 28 transitions, 165 flow. Second operand 3 states and 361 transitions. [2022-12-13 14:12:44,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 40 transitions, 272 flow [2022-12-13 14:12:44,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 40 transitions, 249 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-12-13 14:12:44,936 INFO L231 Difference]: Finished difference. Result has 43 places, 28 transitions, 160 flow [2022-12-13 14:12:44,936 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=160, PETRI_PLACES=43, PETRI_TRANSITIONS=28} [2022-12-13 14:12:44,937 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, 3 predicate places. [2022-12-13 14:12:44,937 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 28 transitions, 160 flow [2022-12-13 14:12:44,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:44,937 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:12:44,937 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:12:44,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 14:12:44,938 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 14:12:44,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:12:44,938 INFO L85 PathProgramCache]: Analyzing trace with hash 894155698, now seen corresponding path program 1 times [2022-12-13 14:12:44,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:12:44,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463168648] [2022-12-13 14:12:44,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:12:44,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:12:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:12:45,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:12:45,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:12:45,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463168648] [2022-12-13 14:12:45,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463168648] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:12:45,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:12:45,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:12:45,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596000334] [2022-12-13 14:12:45,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:12:45,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:12:45,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:12:45,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:12:45,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:12:45,049 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 248 [2022-12-13 14:12:45,049 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 28 transitions, 160 flow. Second operand has 5 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:45,049 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:12:45,050 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 248 [2022-12-13 14:12:45,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:12:45,262 INFO L130 PetriNetUnfolder]: 897/1405 cut-off events. [2022-12-13 14:12:45,262 INFO L131 PetriNetUnfolder]: For 1377/1377 co-relation queries the response was YES. [2022-12-13 14:12:45,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4226 conditions, 1405 events. 897/1405 cut-off events. For 1377/1377 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 5936 event pairs, 267 based on Foata normal form. 27/1432 useless extension candidates. Maximal degree in co-relation 4215. Up to 674 conditions per place. [2022-12-13 14:12:45,266 INFO L137 encePairwiseOnDemand]: 241/248 looper letters, 35 selfloop transitions, 8 changer transitions 10/53 dead transitions. [2022-12-13 14:12:45,266 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 53 transitions, 351 flow [2022-12-13 14:12:45,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:12:45,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 14:12:45,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 567 transitions. [2022-12-13 14:12:45,267 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45725806451612905 [2022-12-13 14:12:45,267 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 567 transitions. [2022-12-13 14:12:45,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 567 transitions. [2022-12-13 14:12:45,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:12:45,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 567 transitions. [2022-12-13 14:12:45,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 113.4) internal successors, (567), 5 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:45,269 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 248.0) internal successors, (1488), 6 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:45,270 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 248.0) internal successors, (1488), 6 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:45,270 INFO L175 Difference]: Start difference. First operand has 43 places, 28 transitions, 160 flow. Second operand 5 states and 567 transitions. [2022-12-13 14:12:45,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 53 transitions, 351 flow [2022-12-13 14:12:45,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 53 transitions, 341 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 14:12:45,272 INFO L231 Difference]: Finished difference. Result has 47 places, 26 transitions, 163 flow [2022-12-13 14:12:45,272 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=163, PETRI_PLACES=47, PETRI_TRANSITIONS=26} [2022-12-13 14:12:45,272 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, 7 predicate places. [2022-12-13 14:12:45,273 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 26 transitions, 163 flow [2022-12-13 14:12:45,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:45,273 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:12:45,273 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:12:45,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 14:12:45,273 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 14:12:45,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:12:45,273 INFO L85 PathProgramCache]: Analyzing trace with hash 839638168, now seen corresponding path program 2 times [2022-12-13 14:12:45,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:12:45,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233245126] [2022-12-13 14:12:45,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:12:45,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:12:45,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:12:45,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:12:45,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:12:45,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233245126] [2022-12-13 14:12:45,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233245126] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:12:45,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:12:45,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:12:45,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098924754] [2022-12-13 14:12:45,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:12:45,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:12:45,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:12:45,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:12:45,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:12:45,403 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 248 [2022-12-13 14:12:45,403 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 26 transitions, 163 flow. Second operand has 5 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:45,403 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:12:45,404 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 248 [2022-12-13 14:12:45,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:12:45,589 INFO L130 PetriNetUnfolder]: 625/977 cut-off events. [2022-12-13 14:12:45,589 INFO L131 PetriNetUnfolder]: For 1304/1304 co-relation queries the response was YES. [2022-12-13 14:12:45,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3005 conditions, 977 events. 625/977 cut-off events. For 1304/1304 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3856 event pairs, 109 based on Foata normal form. 27/1004 useless extension candidates. Maximal degree in co-relation 2992. Up to 388 conditions per place. [2022-12-13 14:12:45,591 INFO L137 encePairwiseOnDemand]: 243/248 looper letters, 25 selfloop transitions, 3 changer transitions 22/50 dead transitions. [2022-12-13 14:12:45,592 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 50 transitions, 321 flow [2022-12-13 14:12:45,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:12:45,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 14:12:45,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 672 transitions. [2022-12-13 14:12:45,593 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45161290322580644 [2022-12-13 14:12:45,593 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 672 transitions. [2022-12-13 14:12:45,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 672 transitions. [2022-12-13 14:12:45,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:12:45,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 672 transitions. [2022-12-13 14:12:45,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 112.0) internal successors, (672), 6 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:45,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:45,596 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:45,596 INFO L175 Difference]: Start difference. First operand has 47 places, 26 transitions, 163 flow. Second operand 6 states and 672 transitions. [2022-12-13 14:12:45,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 50 transitions, 321 flow [2022-12-13 14:12:45,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 50 transitions, 292 flow, removed 2 selfloop flow, removed 7 redundant places. [2022-12-13 14:12:45,599 INFO L231 Difference]: Finished difference. Result has 46 places, 20 transitions, 87 flow [2022-12-13 14:12:45,600 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=87, PETRI_PLACES=46, PETRI_TRANSITIONS=20} [2022-12-13 14:12:45,600 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, 6 predicate places. [2022-12-13 14:12:45,600 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 20 transitions, 87 flow [2022-12-13 14:12:45,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:45,600 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:12:45,600 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:12:45,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 14:12:45,601 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 14:12:45,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:12:45,601 INFO L85 PathProgramCache]: Analyzing trace with hash 839270818, now seen corresponding path program 3 times [2022-12-13 14:12:45,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:12:45,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227045949] [2022-12-13 14:12:45,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:12:45,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:12:45,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:12:45,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:12:45,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:12:45,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227045949] [2022-12-13 14:12:45,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227045949] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:12:45,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:12:45,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:12:45,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725326497] [2022-12-13 14:12:45,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:12:45,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 14:12:45,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:12:45,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 14:12:45,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 14:12:45,697 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 248 [2022-12-13 14:12:45,698 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 20 transitions, 87 flow. Second operand has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:45,698 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:12:45,698 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 248 [2022-12-13 14:12:45,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:12:45,797 INFO L130 PetriNetUnfolder]: 214/377 cut-off events. [2022-12-13 14:12:45,797 INFO L131 PetriNetUnfolder]: For 243/243 co-relation queries the response was YES. [2022-12-13 14:12:45,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1002 conditions, 377 events. 214/377 cut-off events. For 243/243 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1444 event pairs, 42 based on Foata normal form. 40/416 useless extension candidates. Maximal degree in co-relation 991. Up to 241 conditions per place. [2022-12-13 14:12:45,798 INFO L137 encePairwiseOnDemand]: 242/248 looper letters, 24 selfloop transitions, 4 changer transitions 18/48 dead transitions. [2022-12-13 14:12:45,798 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 48 transitions, 271 flow [2022-12-13 14:12:45,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:12:45,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 14:12:45,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 583 transitions. [2022-12-13 14:12:45,800 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47016129032258064 [2022-12-13 14:12:45,800 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 583 transitions. [2022-12-13 14:12:45,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 583 transitions. [2022-12-13 14:12:45,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:12:45,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 583 transitions. [2022-12-13 14:12:45,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 116.6) internal successors, (583), 5 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:45,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 248.0) internal successors, (1488), 6 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:45,802 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 248.0) internal successors, (1488), 6 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:45,802 INFO L175 Difference]: Start difference. First operand has 46 places, 20 transitions, 87 flow. Second operand 5 states and 583 transitions. [2022-12-13 14:12:45,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 48 transitions, 271 flow [2022-12-13 14:12:45,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 48 transitions, 230 flow, removed 7 selfloop flow, removed 11 redundant places. [2022-12-13 14:12:45,804 INFO L231 Difference]: Finished difference. Result has 39 places, 23 transitions, 97 flow [2022-12-13 14:12:45,804 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=97, PETRI_PLACES=39, PETRI_TRANSITIONS=23} [2022-12-13 14:12:45,804 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, -1 predicate places. [2022-12-13 14:12:45,804 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 23 transitions, 97 flow [2022-12-13 14:12:45,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:45,804 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:12:45,804 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:12:45,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 14:12:45,805 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 14:12:45,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:12:45,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1237705284, now seen corresponding path program 1 times [2022-12-13 14:12:45,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:12:45,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833999081] [2022-12-13 14:12:45,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:12:45,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:12:45,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:12:45,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:12:45,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:12:45,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833999081] [2022-12-13 14:12:45,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833999081] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:12:45,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:12:45,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:12:45,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239751511] [2022-12-13 14:12:45,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:12:45,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:12:45,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:12:45,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:12:45,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:12:45,918 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 248 [2022-12-13 14:12:45,918 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 23 transitions, 97 flow. Second operand has 5 states, 5 states have (on average 109.8) internal successors, (549), 5 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:45,919 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:12:45,919 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 248 [2022-12-13 14:12:45,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:12:46,033 INFO L130 PetriNetUnfolder]: 100/202 cut-off events. [2022-12-13 14:12:46,033 INFO L131 PetriNetUnfolder]: For 127/127 co-relation queries the response was YES. [2022-12-13 14:12:46,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 658 conditions, 202 events. 100/202 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 666 event pairs, 17 based on Foata normal form. 25/226 useless extension candidates. Maximal degree in co-relation 649. Up to 88 conditions per place. [2022-12-13 14:12:46,034 INFO L137 encePairwiseOnDemand]: 242/248 looper letters, 28 selfloop transitions, 7 changer transitions 16/53 dead transitions. [2022-12-13 14:12:46,034 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 53 transitions, 322 flow [2022-12-13 14:12:46,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:12:46,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 14:12:46,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 695 transitions. [2022-12-13 14:12:46,036 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46706989247311825 [2022-12-13 14:12:46,037 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 695 transitions. [2022-12-13 14:12:46,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 695 transitions. [2022-12-13 14:12:46,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:12:46,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 695 transitions. [2022-12-13 14:12:46,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 115.83333333333333) internal successors, (695), 6 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:46,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:46,041 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:46,041 INFO L175 Difference]: Start difference. First operand has 39 places, 23 transitions, 97 flow. Second operand 6 states and 695 transitions. [2022-12-13 14:12:46,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 53 transitions, 322 flow [2022-12-13 14:12:46,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 53 transitions, 316 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-13 14:12:46,042 INFO L231 Difference]: Finished difference. Result has 43 places, 26 transitions, 147 flow [2022-12-13 14:12:46,042 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=147, PETRI_PLACES=43, PETRI_TRANSITIONS=26} [2022-12-13 14:12:46,043 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, 3 predicate places. [2022-12-13 14:12:46,043 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 26 transitions, 147 flow [2022-12-13 14:12:46,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 109.8) internal successors, (549), 5 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:46,043 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:12:46,043 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:12:46,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 14:12:46,044 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 14:12:46,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:12:46,044 INFO L85 PathProgramCache]: Analyzing trace with hash -224494253, now seen corresponding path program 1 times [2022-12-13 14:12:46,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:12:46,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224730389] [2022-12-13 14:12:46,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:12:46,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:12:46,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:12:46,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:12:46,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:12:46,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224730389] [2022-12-13 14:12:46,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224730389] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:12:46,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:12:46,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:12:46,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773847560] [2022-12-13 14:12:46,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:12:46,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:12:46,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:12:46,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:12:46,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:12:46,191 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 248 [2022-12-13 14:12:46,192 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 26 transitions, 147 flow. Second operand has 6 states, 6 states have (on average 109.66666666666667) internal successors, (658), 6 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:46,192 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:12:46,192 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 248 [2022-12-13 14:12:46,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:12:46,295 INFO L130 PetriNetUnfolder]: 54/119 cut-off events. [2022-12-13 14:12:46,296 INFO L131 PetriNetUnfolder]: For 162/162 co-relation queries the response was YES. [2022-12-13 14:12:46,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 119 events. 54/119 cut-off events. For 162/162 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 307 event pairs, 14 based on Foata normal form. 8/126 useless extension candidates. Maximal degree in co-relation 425. Up to 48 conditions per place. [2022-12-13 14:12:46,297 INFO L137 encePairwiseOnDemand]: 242/248 looper letters, 25 selfloop transitions, 10 changer transitions 8/45 dead transitions. [2022-12-13 14:12:46,297 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 45 transitions, 318 flow [2022-12-13 14:12:46,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:12:46,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 14:12:46,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 794 transitions. [2022-12-13 14:12:46,299 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4573732718894009 [2022-12-13 14:12:46,299 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 794 transitions. [2022-12-13 14:12:46,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 794 transitions. [2022-12-13 14:12:46,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:12:46,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 794 transitions. [2022-12-13 14:12:46,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 113.42857142857143) internal successors, (794), 7 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:46,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 248.0) internal successors, (1984), 8 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:46,304 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 248.0) internal successors, (1984), 8 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:46,304 INFO L175 Difference]: Start difference. First operand has 43 places, 26 transitions, 147 flow. Second operand 7 states and 794 transitions. [2022-12-13 14:12:46,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 45 transitions, 318 flow [2022-12-13 14:12:46,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 45 transitions, 265 flow, removed 20 selfloop flow, removed 5 redundant places. [2022-12-13 14:12:46,307 INFO L231 Difference]: Finished difference. Result has 45 places, 26 transitions, 141 flow [2022-12-13 14:12:46,307 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=141, PETRI_PLACES=45, PETRI_TRANSITIONS=26} [2022-12-13 14:12:46,307 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, 5 predicate places. [2022-12-13 14:12:46,307 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 26 transitions, 141 flow [2022-12-13 14:12:46,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 109.66666666666667) internal successors, (658), 6 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:46,308 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:12:46,308 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:12:46,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 14:12:46,308 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 14:12:46,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:12:46,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1384721527, now seen corresponding path program 1 times [2022-12-13 14:12:46,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:12:46,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132972320] [2022-12-13 14:12:46,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:12:46,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:12:46,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:12:46,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:12:46,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:12:46,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132972320] [2022-12-13 14:12:46,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132972320] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:12:46,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:12:46,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:12:46,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512972204] [2022-12-13 14:12:46,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:12:46,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:12:46,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:12:46,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:12:46,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:12:46,827 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 248 [2022-12-13 14:12:46,828 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 26 transitions, 141 flow. Second operand has 7 states, 7 states have (on average 108.57142857142857) internal successors, (760), 7 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:46,828 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:12:46,828 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 248 [2022-12-13 14:12:46,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:12:46,973 INFO L130 PetriNetUnfolder]: 56/128 cut-off events. [2022-12-13 14:12:46,973 INFO L131 PetriNetUnfolder]: For 192/192 co-relation queries the response was YES. [2022-12-13 14:12:46,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 454 conditions, 128 events. 56/128 cut-off events. For 192/192 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 362 event pairs, 5 based on Foata normal form. 1/129 useless extension candidates. Maximal degree in co-relation 443. Up to 40 conditions per place. [2022-12-13 14:12:46,974 INFO L137 encePairwiseOnDemand]: 243/248 looper letters, 25 selfloop transitions, 3 changer transitions 23/53 dead transitions. [2022-12-13 14:12:46,974 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 53 transitions, 406 flow [2022-12-13 14:12:46,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:12:46,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 14:12:46,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 674 transitions. [2022-12-13 14:12:46,975 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4529569892473118 [2022-12-13 14:12:46,975 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 674 transitions. [2022-12-13 14:12:46,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 674 transitions. [2022-12-13 14:12:46,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:12:46,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 674 transitions. [2022-12-13 14:12:46,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 112.33333333333333) internal successors, (674), 6 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:46,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:46,978 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 248.0) internal successors, (1736), 7 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:46,978 INFO L175 Difference]: Start difference. First operand has 45 places, 26 transitions, 141 flow. Second operand 6 states and 674 transitions. [2022-12-13 14:12:46,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 53 transitions, 406 flow [2022-12-13 14:12:46,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 53 transitions, 324 flow, removed 24 selfloop flow, removed 6 redundant places. [2022-12-13 14:12:46,979 INFO L231 Difference]: Finished difference. Result has 44 places, 26 transitions, 115 flow [2022-12-13 14:12:46,980 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=115, PETRI_PLACES=44, PETRI_TRANSITIONS=26} [2022-12-13 14:12:46,980 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, 4 predicate places. [2022-12-13 14:12:46,980 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 26 transitions, 115 flow [2022-12-13 14:12:46,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 108.57142857142857) internal successors, (760), 7 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:46,980 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:12:46,980 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:12:46,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 14:12:46,981 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 14:12:46,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:12:46,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1788468407, now seen corresponding path program 2 times [2022-12-13 14:12:46,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:12:46,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748810738] [2022-12-13 14:12:46,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:12:46,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:12:47,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:12:47,010 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:12:47,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:12:47,051 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:12:47,051 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 14:12:47,052 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2022-12-13 14:12:47,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (11 of 13 remaining) [2022-12-13 14:12:47,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2022-12-13 14:12:47,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2022-12-13 14:12:47,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2022-12-13 14:12:47,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2022-12-13 14:12:47,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2022-12-13 14:12:47,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2022-12-13 14:12:47,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (4 of 13 remaining) [2022-12-13 14:12:47,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2022-12-13 14:12:47,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2022-12-13 14:12:47,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2022-12-13 14:12:47,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining) [2022-12-13 14:12:47,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 14:12:47,054 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:12:47,059 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 14:12:47,059 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 14:12:47,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 02:12:47 BasicIcfg [2022-12-13 14:12:47,099 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 14:12:47,099 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 14:12:47,099 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 14:12:47,099 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 14:12:47,100 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:12:38" (3/4) ... [2022-12-13 14:12:47,101 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 14:12:47,102 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 14:12:47,102 INFO L158 Benchmark]: Toolchain (without parser) took 9915.88ms. Allocated memory was 117.4MB in the beginning and 262.1MB in the end (delta: 144.7MB). Free memory was 82.7MB in the beginning and 226.8MB in the end (delta: -144.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:12:47,102 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 117.4MB. Free memory is still 60.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:12:47,102 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.11ms. Allocated memory is still 117.4MB. Free memory was 82.7MB in the beginning and 56.8MB in the end (delta: 26.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-13 14:12:47,102 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.53ms. Allocated memory is still 117.4MB. Free memory was 56.8MB in the beginning and 54.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:12:47,103 INFO L158 Benchmark]: Boogie Preprocessor took 20.81ms. Allocated memory is still 117.4MB. Free memory was 54.3MB in the beginning and 52.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:12:47,103 INFO L158 Benchmark]: RCFGBuilder took 545.99ms. Allocated memory was 117.4MB in the beginning and 180.4MB in the end (delta: 62.9MB). Free memory was 52.6MB in the beginning and 124.0MB in the end (delta: -71.4MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2022-12-13 14:12:47,103 INFO L158 Benchmark]: TraceAbstraction took 8972.97ms. Allocated memory was 180.4MB in the beginning and 262.1MB in the end (delta: 81.8MB). Free memory was 124.0MB in the beginning and 226.8MB in the end (delta: -102.8MB). Peak memory consumption was 132.6MB. Max. memory is 16.1GB. [2022-12-13 14:12:47,103 INFO L158 Benchmark]: Witness Printer took 2.53ms. Allocated memory is still 262.1MB. Free memory is still 226.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:12:47,104 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 117.4MB. Free memory is still 60.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 333.11ms. Allocated memory is still 117.4MB. Free memory was 82.7MB in the beginning and 56.8MB in the end (delta: 26.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.53ms. Allocated memory is still 117.4MB. Free memory was 56.8MB in the beginning and 54.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.81ms. Allocated memory is still 117.4MB. Free memory was 54.3MB in the beginning and 52.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 545.99ms. Allocated memory was 117.4MB in the beginning and 180.4MB in the end (delta: 62.9MB). Free memory was 52.6MB in the beginning and 124.0MB in the end (delta: -71.4MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * TraceAbstraction took 8972.97ms. Allocated memory was 180.4MB in the beginning and 262.1MB in the end (delta: 81.8MB). Free memory was 124.0MB in the beginning and 226.8MB in the end (delta: -102.8MB). Peak memory consumption was 132.6MB. Max. memory is 16.1GB. * Witness Printer took 2.53ms. Allocated memory is still 262.1MB. Free memory is still 226.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 129 PlacesBefore, 40 PlacesAfterwards, 121 TransitionsBefore, 31 TransitionsAfterwards, 2164 CoEnabledTransitionPairs, 6 FixpointIterations, 52 TrivialSequentialCompositions, 64 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 124 TotalNumberOfCompositions, 5211 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2361, independent: 2216, independent conditional: 0, independent unconditional: 2216, dependent: 145, dependent conditional: 0, dependent unconditional: 145, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1175, independent: 1136, independent conditional: 0, independent unconditional: 1136, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2361, independent: 1080, independent conditional: 0, independent unconditional: 1080, dependent: 106, dependent conditional: 0, dependent unconditional: 106, unknown: 1175, unknown conditional: 0, unknown unconditional: 1175] , Statistics on independence cache: Total cache size (in pairs): 94, Positive cache size: 80, Positive conditional cache size: 0, Positive unconditional cache size: 80, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p0_EBX = 0; [L716] 0 int __unbuffered_p2_EAX = 0; [L717] 0 _Bool main$tmp_guard0; [L718] 0 _Bool main$tmp_guard1; [L720] 0 int x = 0; [L721] 0 _Bool x$flush_delayed; [L722] 0 int x$mem_tmp; [L723] 0 _Bool x$r_buff0_thd0; [L724] 0 _Bool x$r_buff0_thd1; [L725] 0 _Bool x$r_buff0_thd2; [L726] 0 _Bool x$r_buff0_thd3; [L727] 0 _Bool x$r_buff1_thd0; [L728] 0 _Bool x$r_buff1_thd1; [L729] 0 _Bool x$r_buff1_thd2; [L730] 0 _Bool x$r_buff1_thd3; [L731] 0 _Bool x$read_delayed; [L732] 0 int *x$read_delayed_var; [L733] 0 int x$w_buff0; [L734] 0 _Bool x$w_buff0_used; [L735] 0 int x$w_buff1; [L736] 0 _Bool x$w_buff1_used; [L738] 0 int y = 0; [L739] 0 _Bool weak$$choice0; [L740] 0 _Bool weak$$choice2; [L829] 0 pthread_t t1828; [L830] FCALL, FORK 0 pthread_create(&t1828, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1828, ((void *)0), P0, ((void *)0))=-2, t1828={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L831] 0 pthread_t t1829; [L832] FCALL, FORK 0 pthread_create(&t1829, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1829, ((void *)0), P1, ((void *)0))=-1, t1828={5:0}, t1829={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L833] 0 pthread_t t1830; [L834] FCALL, FORK 0 pthread_create(&t1830, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1830, ((void *)0), P2, ((void *)0))=0, t1828={5:0}, t1829={6:0}, t1830={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L772] 2 x$w_buff1 = x$w_buff0 [L773] 2 x$w_buff0 = 1 [L774] 2 x$w_buff1_used = x$w_buff0_used [L775] 2 x$w_buff0_used = (_Bool)1 [L776] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L776] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L777] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L778] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L779] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L780] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L781] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0] [L784] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L801] 3 __unbuffered_p2_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L804] 3 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L807] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L808] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L809] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L810] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L811] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L744] 1 __unbuffered_p0_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=2, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L814] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L816] 3 return 0; [L747] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L748] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L749] 1 x$flush_delayed = weak$$choice2 [L750] 1 x$mem_tmp = x [L751] 1 x = !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L752] 1 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L753] 1 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L754] 1 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L755] 1 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L756] 1 x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L757] 1 x$r_buff1_thd1 = weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L758] 1 __unbuffered_p0_EBX = x [L759] 1 x = x$flush_delayed ? x$mem_tmp : x [L760] 1 x$flush_delayed = (_Bool)0 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=2, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L787] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L788] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L789] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L790] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L791] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=2, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] [L765] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L767] 1 return 0; [L794] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L796] 2 return 0; [L836] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L838] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L838] RET 0 assume_abort_if_not(main$tmp_guard0) [L840] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L841] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L842] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L843] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L844] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=2, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1828={5:0}, t1829={6:0}, t1830={3:0}, weak$$choice0=49, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] [L847] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p0_EAX == 2 && __unbuffered_p0_EBX == 0 && __unbuffered_p2_EAX == 1) [L849] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression [L19] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=2, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 827]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 832]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 830]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 834]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 150 locations, 13 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: 8.8s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 635 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 476 mSDsluCounter, 144 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 92 mSDsCounter, 91 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1433 IncrementalHoareTripleChecker+Invalid, 1524 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 91 mSolverCounterUnsat, 52 mSDtfsCounter, 1433 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred in iteration=4, InterpolantAutomatonStates: 65, 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, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 189 NumberOfCodeBlocks, 189 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 155 ConstructedInterpolants, 0 QuantifiedInterpolants, 1016 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 14:12:47,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 390a12f9f7a5c311c1cdcecac54987f654ebac30db2fbb7661324a5599d93cf6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 14:12:48,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:12:48,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:12:48,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:12:48,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:12:48,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:12:48,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:12:48,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:12:48,651 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:12:48,652 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:12:48,653 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:12:48,654 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:12:48,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:12:48,656 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:12:48,657 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:12:48,658 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:12:48,659 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:12:48,660 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:12:48,661 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:12:48,663 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:12:48,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:12:48,666 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:12:48,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:12:48,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:12:48,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:12:48,672 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:12:48,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:12:48,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:12:48,674 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:12:48,674 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:12:48,675 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:12:48,675 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:12:48,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:12:48,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:12:48,678 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:12:48,678 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:12:48,679 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:12:48,679 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:12:48,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:12:48,680 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:12:48,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:12:48,682 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-12-13 14:12:48,705 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:12:48,705 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:12:48,706 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:12:48,706 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:12:48,706 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:12:48,707 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:12:48,707 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:12:48,707 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:12:48,708 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:12:48,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:12:48,708 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:12:48,708 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 14:12:48,708 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:12:48,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:12:48,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:12:48,709 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 14:12:48,709 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 14:12:48,709 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 14:12:48,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:12:48,710 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 14:12:48,710 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 14:12:48,710 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 14:12:48,710 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:12:48,710 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:12:48,710 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:12:48,711 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:12:48,711 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:12:48,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:12:48,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:12:48,711 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:12:48,712 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 14:12:48,712 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 14:12:48,712 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:12:48,712 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:12:48,712 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:12:48,712 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 14:12:48,713 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:12:48,713 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_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 390a12f9f7a5c311c1cdcecac54987f654ebac30db2fbb7661324a5599d93cf6 [2022-12-13 14:12:48,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:12:48,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:12:48,960 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:12:48,961 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:12:48,962 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:12:48,962 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i [2022-12-13 14:12:51,534 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:12:51,723 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:12:51,724 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/sv-benchmarks/c/pthread-wmm/safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i [2022-12-13 14:12:51,737 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/data/355cd95e0/3ad0e94a84c64a259608524a1b2880f9/FLAG29cf676f2 [2022-12-13 14:12:51,748 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/data/355cd95e0/3ad0e94a84c64a259608524a1b2880f9 [2022-12-13 14:12:51,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:12:51,751 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:12:51,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:12:51,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:12:51,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:12:51,755 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:12:51" (1/1) ... [2022-12-13 14:12:51,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@937c6b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:12:51, skipping insertion in model container [2022-12-13 14:12:51,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:12:51" (1/1) ... [2022-12-13 14:12:51,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:12:51,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:12:51,904 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_899821f6-7ee4-47a9-b6ff-44a79e8bba16/sv-benchmarks/c/pthread-wmm/safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i[1019,1032] [2022-12-13 14:12:52,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:52,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:52,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:52,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:52,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:52,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:52,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:52,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:52,011 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:52,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:52,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:52,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:52,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:52,015 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:52,015 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:52,015 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:52,016 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:52,016 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:52,016 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:52,016 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:52,016 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:52,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:52,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:52,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:52,023 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:52,023 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:52,023 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:52,025 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:52,025 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:52,026 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:52,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:12:52,037 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:12:52,046 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_899821f6-7ee4-47a9-b6ff-44a79e8bba16/sv-benchmarks/c/pthread-wmm/safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i[1019,1032] [2022-12-13 14:12:52,060 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:52,061 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:52,061 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:52,064 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:52,064 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:52,064 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:52,064 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:52,065 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:52,065 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:52,066 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:52,066 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:52,066 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:52,066 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:52,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:52,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:52,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:52,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:52,069 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:52,069 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:52,069 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:52,069 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:52,070 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:52,070 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:52,071 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:52,073 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:52,073 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:52,074 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:52,075 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:52,075 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:12:52,075 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:12:52,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:12:52,099 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:12:52,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:12:52 WrapperNode [2022-12-13 14:12:52,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:12:52,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:12:52,100 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:12:52,101 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:12:52,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:12:52" (1/1) ... [2022-12-13 14:12:52,124 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:12:52" (1/1) ... [2022-12-13 14:12:52,146 INFO L138 Inliner]: procedures = 179, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 129 [2022-12-13 14:12:52,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:12:52,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:12:52,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:12:52,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:12:52,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:12:52" (1/1) ... [2022-12-13 14:12:52,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:12:52" (1/1) ... [2022-12-13 14:12:52,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:12:52" (1/1) ... [2022-12-13 14:12:52,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:12:52" (1/1) ... [2022-12-13 14:12:52,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:12:52" (1/1) ... [2022-12-13 14:12:52,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:12:52" (1/1) ... [2022-12-13 14:12:52,171 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:12:52" (1/1) ... [2022-12-13 14:12:52,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:12:52" (1/1) ... [2022-12-13 14:12:52,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:12:52,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:12:52,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:12:52,177 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:12:52,178 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:12:52" (1/1) ... [2022-12-13 14:12:52,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:12:52,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:12:52,205 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:12:52,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:12:52,238 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 14:12:52,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:12:52,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 14:12:52,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 14:12:52,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 14:12:52,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 14:12:52,238 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 14:12:52,238 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 14:12:52,238 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 14:12:52,238 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 14:12:52,238 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 14:12:52,239 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 14:12:52,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 14:12:52,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:12:52,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:12:52,240 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 14:12:52,355 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:12:52,356 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:12:52,639 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:12:52,723 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:12:52,723 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 14:12:52,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:12:52 BoogieIcfgContainer [2022-12-13 14:12:52,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:12:52,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:12:52,726 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:12:52,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:12:52,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:12:51" (1/3) ... [2022-12-13 14:12:52,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59eaac04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:12:52, skipping insertion in model container [2022-12-13 14:12:52,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:12:52" (2/3) ... [2022-12-13 14:12:52,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59eaac04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:12:52, skipping insertion in model container [2022-12-13 14:12:52,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:12:52" (3/3) ... [2022-12-13 14:12:52,731 INFO L112 eAbstractionObserver]: Analyzing ICFG safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i [2022-12-13 14:12:52,745 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:12:52,745 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-12-13 14:12:52,745 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 14:12:52,792 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 14:12:52,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 133 places, 125 transitions, 265 flow [2022-12-13 14:12:52,856 INFO L130 PetriNetUnfolder]: 2/122 cut-off events. [2022-12-13 14:12:52,856 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:12:52,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 122 events. 2/122 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2022-12-13 14:12:52,860 INFO L82 GeneralOperation]: Start removeDead. Operand has 133 places, 125 transitions, 265 flow [2022-12-13 14:12:52,863 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 122 transitions, 253 flow [2022-12-13 14:12:52,866 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 14:12:52,874 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 130 places, 122 transitions, 253 flow [2022-12-13 14:12:52,876 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 130 places, 122 transitions, 253 flow [2022-12-13 14:12:52,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 130 places, 122 transitions, 253 flow [2022-12-13 14:12:52,895 INFO L130 PetriNetUnfolder]: 2/122 cut-off events. [2022-12-13 14:12:52,895 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:12:52,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 122 events. 2/122 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 79 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2022-12-13 14:12:52,897 INFO L119 LiptonReduction]: Number of co-enabled transitions 2164 [2022-12-13 14:12:59,202 INFO L134 LiptonReduction]: Checked pairs total: 5274 [2022-12-13 14:12:59,202 INFO L136 LiptonReduction]: Total number of compositions: 127 [2022-12-13 14:12:59,214 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:12:59,219 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;@94ae9da, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:12:59,219 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-12-13 14:12:59,221 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 14:12:59,221 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:12:59,221 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:12:59,222 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 14:12:59,222 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 14:12:59,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:12:59,227 INFO L85 PathProgramCache]: Analyzing trace with hash 535, now seen corresponding path program 1 times [2022-12-13 14:12:59,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:12:59,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [382757984] [2022-12-13 14:12:59,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:12:59,237 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:12:59,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:12:59,238 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 14:12:59,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 14:12:59,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:12:59,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 14:12:59,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:12:59,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:12:59,302 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:12:59,303 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:12:59,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [382757984] [2022-12-13 14:12:59,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [382757984] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:12:59,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:12:59,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 14:12:59,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117759432] [2022-12-13 14:12:59,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:12:59,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 14:12:59,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:12:59,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 14:12:59,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 14:12:59,328 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 252 [2022-12-13 14:12:59,330 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 31 transitions, 71 flow. Second operand has 2 states, 2 states have (on average 113.5) internal successors, (227), 2 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:59,330 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:12:59,330 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 252 [2022-12-13 14:12:59,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:12:59,713 INFO L130 PetriNetUnfolder]: 1277/1926 cut-off events. [2022-12-13 14:12:59,713 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2022-12-13 14:12:59,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3867 conditions, 1926 events. 1277/1926 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 8958 event pairs, 1277 based on Foata normal form. 0/1626 useless extension candidates. Maximal degree in co-relation 3856. Up to 1887 conditions per place. [2022-12-13 14:12:59,737 INFO L137 encePairwiseOnDemand]: 245/252 looper letters, 22 selfloop transitions, 0 changer transitions 0/24 dead transitions. [2022-12-13 14:12:59,737 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 24 transitions, 101 flow [2022-12-13 14:12:59,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 14:12:59,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 14:12:59,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 255 transitions. [2022-12-13 14:12:59,750 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5059523809523809 [2022-12-13 14:12:59,751 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 255 transitions. [2022-12-13 14:12:59,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 255 transitions. [2022-12-13 14:12:59,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:12:59,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 255 transitions. [2022-12-13 14:12:59,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 127.5) internal successors, (255), 2 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:59,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 252.0) internal successors, (756), 3 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:59,762 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 252.0) internal successors, (756), 3 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:59,764 INFO L175 Difference]: Start difference. First operand has 40 places, 31 transitions, 71 flow. Second operand 2 states and 255 transitions. [2022-12-13 14:12:59,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 24 transitions, 101 flow [2022-12-13 14:12:59,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 24 transitions, 98 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 14:12:59,778 INFO L231 Difference]: Finished difference. Result has 32 places, 24 transitions, 54 flow [2022-12-13 14:12:59,779 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=31, 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=2, PETRI_FLOW=54, PETRI_PLACES=32, PETRI_TRANSITIONS=24} [2022-12-13 14:12:59,782 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, -8 predicate places. [2022-12-13 14:12:59,782 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 24 transitions, 54 flow [2022-12-13 14:12:59,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 113.5) internal successors, (227), 2 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:12:59,783 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:12:59,783 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 14:12:59,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 14:12:59,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:12:59,985 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 14:12:59,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:12:59,986 INFO L85 PathProgramCache]: Analyzing trace with hash 506623475, now seen corresponding path program 1 times [2022-12-13 14:12:59,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:12:59,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [336546290] [2022-12-13 14:12:59,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:12:59,989 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:12:59,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:12:59,991 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 14:12:59,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 14:13:00,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:13:00,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 14:13:00,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:13:00,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:13:00,178 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:13:00,179 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:13:00,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [336546290] [2022-12-13 14:13:00,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [336546290] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:13:00,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:13:00,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 14:13:00,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692240950] [2022-12-13 14:13:00,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:13:00,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:13:00,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:13:00,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:13:00,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:13:00,185 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 252 [2022-12-13 14:13:00,185 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 24 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:00,185 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:13:00,186 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 252 [2022-12-13 14:13:00,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:13:00,448 INFO L130 PetriNetUnfolder]: 999/1560 cut-off events. [2022-12-13 14:13:00,448 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:13:00,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3093 conditions, 1560 events. 999/1560 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 7236 event pairs, 277 based on Foata normal form. 0/1428 useless extension candidates. Maximal degree in co-relation 3090. Up to 1195 conditions per place. [2022-12-13 14:13:00,457 INFO L137 encePairwiseOnDemand]: 249/252 looper letters, 31 selfloop transitions, 2 changer transitions 2/37 dead transitions. [2022-12-13 14:13:00,457 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 37 transitions, 152 flow [2022-12-13 14:13:00,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:13:00,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 14:13:00,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 372 transitions. [2022-12-13 14:13:00,459 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49206349206349204 [2022-12-13 14:13:00,459 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 372 transitions. [2022-12-13 14:13:00,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 372 transitions. [2022-12-13 14:13:00,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:13:00,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 372 transitions. [2022-12-13 14:13:00,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:00,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:00,462 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:00,462 INFO L175 Difference]: Start difference. First operand has 32 places, 24 transitions, 54 flow. Second operand 3 states and 372 transitions. [2022-12-13 14:13:00,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 37 transitions, 152 flow [2022-12-13 14:13:00,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 37 transitions, 152 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 14:13:00,463 INFO L231 Difference]: Finished difference. Result has 33 places, 22 transitions, 54 flow [2022-12-13 14:13:00,463 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=33, PETRI_TRANSITIONS=22} [2022-12-13 14:13:00,464 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, -7 predicate places. [2022-12-13 14:13:00,464 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 22 transitions, 54 flow [2022-12-13 14:13:00,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:00,464 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:13:00,464 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:13:00,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 14:13:00,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:13:00,665 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 14:13:00,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:13:00,666 INFO L85 PathProgramCache]: Analyzing trace with hash 919666633, now seen corresponding path program 1 times [2022-12-13 14:13:00,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:13:00,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [780089620] [2022-12-13 14:13:00,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:13:00,667 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:13:00,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:13:00,668 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 14:13:00,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-13 14:13:00,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:13:00,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 14:13:00,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:13:00,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:13:00,774 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:13:00,774 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:13:00,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [780089620] [2022-12-13 14:13:00,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [780089620] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:13:00,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:13:00,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:13:00,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044715510] [2022-12-13 14:13:00,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:13:00,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 14:13:00,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:13:00,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 14:13:00,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 14:13:00,790 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 252 [2022-12-13 14:13:00,791 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 22 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 110.25) internal successors, (441), 4 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:00,791 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:13:00,791 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 252 [2022-12-13 14:13:00,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:13:01,005 INFO L130 PetriNetUnfolder]: 557/926 cut-off events. [2022-12-13 14:13:01,005 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-12-13 14:13:01,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1959 conditions, 926 events. 557/926 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 4272 event pairs, 113 based on Foata normal form. 64/950 useless extension candidates. Maximal degree in co-relation 1955. Up to 633 conditions per place. [2022-12-13 14:13:01,008 INFO L137 encePairwiseOnDemand]: 246/252 looper letters, 29 selfloop transitions, 4 changer transitions 19/54 dead transitions. [2022-12-13 14:13:01,008 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 54 transitions, 232 flow [2022-12-13 14:13:01,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:13:01,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 14:13:01,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 594 transitions. [2022-12-13 14:13:01,010 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4714285714285714 [2022-12-13 14:13:01,010 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 594 transitions. [2022-12-13 14:13:01,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 594 transitions. [2022-12-13 14:13:01,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:13:01,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 594 transitions. [2022-12-13 14:13:01,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 118.8) internal successors, (594), 5 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:01,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 252.0) internal successors, (1512), 6 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:01,015 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 252.0) internal successors, (1512), 6 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:01,015 INFO L175 Difference]: Start difference. First operand has 33 places, 22 transitions, 54 flow. Second operand 5 states and 594 transitions. [2022-12-13 14:13:01,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 54 transitions, 232 flow [2022-12-13 14:13:01,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 54 transitions, 222 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 14:13:01,016 INFO L231 Difference]: Finished difference. Result has 37 places, 25 transitions, 86 flow [2022-12-13 14:13:01,016 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=86, PETRI_PLACES=37, PETRI_TRANSITIONS=25} [2022-12-13 14:13:01,016 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, -3 predicate places. [2022-12-13 14:13:01,017 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 25 transitions, 86 flow [2022-12-13 14:13:01,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 110.25) internal successors, (441), 4 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:01,017 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:13:01,017 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:13:01,030 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-13 14:13:01,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:13:01,218 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 14:13:01,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:13:01,219 INFO L85 PathProgramCache]: Analyzing trace with hash -523199167, now seen corresponding path program 1 times [2022-12-13 14:13:01,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:13:01,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1824270974] [2022-12-13 14:13:01,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:13:01,220 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:13:01,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:13:01,221 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 14:13:01,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-13 14:13:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:13:01,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 14:13:01,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:13:01,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:13:01,332 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:13:01,332 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:13:01,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1824270974] [2022-12-13 14:13:01,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1824270974] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:13:01,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:13:01,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:13:01,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998193609] [2022-12-13 14:13:01,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:13:01,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:13:01,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:13:01,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:13:01,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:13:01,358 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 252 [2022-12-13 14:13:01,359 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 25 transitions, 86 flow. Second operand has 5 states, 5 states have (on average 110.4) internal successors, (552), 5 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:01,359 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:13:01,359 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 252 [2022-12-13 14:13:01,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:13:01,598 INFO L130 PetriNetUnfolder]: 233/440 cut-off events. [2022-12-13 14:13:01,598 INFO L131 PetriNetUnfolder]: For 144/144 co-relation queries the response was YES. [2022-12-13 14:13:01,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1176 conditions, 440 events. 233/440 cut-off events. For 144/144 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1806 event pairs, 61 based on Foata normal form. 37/464 useless extension candidates. Maximal degree in co-relation 1169. Up to 140 conditions per place. [2022-12-13 14:13:01,600 INFO L137 encePairwiseOnDemand]: 246/252 looper letters, 37 selfloop transitions, 7 changer transitions 19/65 dead transitions. [2022-12-13 14:13:01,600 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 65 transitions, 336 flow [2022-12-13 14:13:01,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:13:01,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 14:13:01,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 713 transitions. [2022-12-13 14:13:01,603 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47156084656084657 [2022-12-13 14:13:01,603 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 713 transitions. [2022-12-13 14:13:01,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 713 transitions. [2022-12-13 14:13:01,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:13:01,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 713 transitions. [2022-12-13 14:13:01,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 118.83333333333333) internal successors, (713), 6 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:01,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 252.0) internal successors, (1764), 7 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:01,609 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 252.0) internal successors, (1764), 7 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:01,609 INFO L175 Difference]: Start difference. First operand has 37 places, 25 transitions, 86 flow. Second operand 6 states and 713 transitions. [2022-12-13 14:13:01,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 65 transitions, 336 flow [2022-12-13 14:13:01,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 65 transitions, 330 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-13 14:13:01,612 INFO L231 Difference]: Finished difference. Result has 41 places, 28 transitions, 136 flow [2022-12-13 14:13:01,612 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=136, PETRI_PLACES=41, PETRI_TRANSITIONS=28} [2022-12-13 14:13:01,613 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2022-12-13 14:13:01,613 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 28 transitions, 136 flow [2022-12-13 14:13:01,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 110.4) internal successors, (552), 5 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:01,614 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:13:01,614 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:13:01,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-12-13 14:13:01,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:13:01,815 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 14:13:01,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:13:01,816 INFO L85 PathProgramCache]: Analyzing trace with hash -949401529, now seen corresponding path program 1 times [2022-12-13 14:13:01,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:13:01,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1628826538] [2022-12-13 14:13:01,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:13:01,817 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:13:01,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:13:01,819 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 14:13:01,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-13 14:13:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:13:01,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 14:13:01,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:13:01,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:13:01,992 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:13:01,992 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:13:01,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1628826538] [2022-12-13 14:13:01,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1628826538] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:13:01,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:13:01,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:13:01,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482514186] [2022-12-13 14:13:01,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:13:01,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:13:01,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:13:01,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:13:01,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:13:02,023 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 252 [2022-12-13 14:13:02,024 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 28 transitions, 136 flow. Second operand has 6 states, 6 states have (on average 110.5) internal successors, (663), 6 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:02,025 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:13:02,025 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 252 [2022-12-13 14:13:02,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:13:02,277 INFO L130 PetriNetUnfolder]: 143/278 cut-off events. [2022-12-13 14:13:02,278 INFO L131 PetriNetUnfolder]: For 260/260 co-relation queries the response was YES. [2022-12-13 14:13:02,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 811 conditions, 278 events. 143/278 cut-off events. For 260/260 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1027 event pairs, 56 based on Foata normal form. 10/284 useless extension candidates. Maximal degree in co-relation 802. Up to 108 conditions per place. [2022-12-13 14:13:02,280 INFO L137 encePairwiseOnDemand]: 246/252 looper letters, 34 selfloop transitions, 10 changer transitions 10/56 dead transitions. [2022-12-13 14:13:02,280 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 56 transitions, 334 flow [2022-12-13 14:13:02,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:13:02,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 14:13:02,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 812 transitions. [2022-12-13 14:13:02,282 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4603174603174603 [2022-12-13 14:13:02,282 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 812 transitions. [2022-12-13 14:13:02,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 812 transitions. [2022-12-13 14:13:02,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:13:02,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 812 transitions. [2022-12-13 14:13:02,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:02,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 252.0) internal successors, (2016), 8 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:02,289 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 252.0) internal successors, (2016), 8 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:02,289 INFO L175 Difference]: Start difference. First operand has 41 places, 28 transitions, 136 flow. Second operand 7 states and 812 transitions. [2022-12-13 14:13:02,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 56 transitions, 334 flow [2022-12-13 14:13:02,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 56 transitions, 298 flow, removed 14 selfloop flow, removed 4 redundant places. [2022-12-13 14:13:02,292 INFO L231 Difference]: Finished difference. Result has 44 places, 28 transitions, 138 flow [2022-12-13 14:13:02,293 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=138, PETRI_PLACES=44, PETRI_TRANSITIONS=28} [2022-12-13 14:13:02,293 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, 4 predicate places. [2022-12-13 14:13:02,293 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 28 transitions, 138 flow [2022-12-13 14:13:02,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 110.5) internal successors, (663), 6 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:02,294 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:13:02,294 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:13:02,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-13 14:13:02,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:13:02,494 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 14:13:02,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:13:02,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1754453390, now seen corresponding path program 1 times [2022-12-13 14:13:02,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:13:02,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1706270247] [2022-12-13 14:13:02,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:13:02,496 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:13:02,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:13:02,497 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 14:13:02,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-12-13 14:13:02,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:13:02,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 14:13:02,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:13:02,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:13:02,681 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:13:02,682 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:13:02,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1706270247] [2022-12-13 14:13:02,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1706270247] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:13:02,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:13:02,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:13:02,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836601161] [2022-12-13 14:13:02,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:13:02,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 14:13:02,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:13:02,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 14:13:02,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 14:13:02,698 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 252 [2022-12-13 14:13:02,699 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 28 transitions, 138 flow. Second operand has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:02,699 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:13:02,699 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 252 [2022-12-13 14:13:02,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:13:02,859 INFO L130 PetriNetUnfolder]: 303/542 cut-off events. [2022-12-13 14:13:02,859 INFO L131 PetriNetUnfolder]: For 585/585 co-relation queries the response was YES. [2022-12-13 14:13:02,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1582 conditions, 542 events. 303/542 cut-off events. For 585/585 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2170 event pairs, 59 based on Foata normal form. 0/541 useless extension candidates. Maximal degree in co-relation 1572. Up to 250 conditions per place. [2022-12-13 14:13:02,863 INFO L137 encePairwiseOnDemand]: 247/252 looper letters, 55 selfloop transitions, 4 changer transitions 0/59 dead transitions. [2022-12-13 14:13:02,863 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 59 transitions, 400 flow [2022-12-13 14:13:02,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 14:13:02,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 14:13:02,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 480 transitions. [2022-12-13 14:13:02,865 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2022-12-13 14:13:02,865 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 480 transitions. [2022-12-13 14:13:02,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 480 transitions. [2022-12-13 14:13:02,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:13:02,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 480 transitions. [2022-12-13 14:13:02,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:02,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 252.0) internal successors, (1260), 5 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:02,868 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 252.0) internal successors, (1260), 5 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:02,868 INFO L175 Difference]: Start difference. First operand has 44 places, 28 transitions, 138 flow. Second operand 4 states and 480 transitions. [2022-12-13 14:13:02,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 59 transitions, 400 flow [2022-12-13 14:13:02,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 59 transitions, 324 flow, removed 24 selfloop flow, removed 6 redundant places. [2022-12-13 14:13:02,873 INFO L231 Difference]: Finished difference. Result has 41 places, 31 transitions, 128 flow [2022-12-13 14:13:02,873 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=128, PETRI_PLACES=41, PETRI_TRANSITIONS=31} [2022-12-13 14:13:02,873 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2022-12-13 14:13:02,873 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 31 transitions, 128 flow [2022-12-13 14:13:02,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:02,874 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:13:02,874 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:13:02,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-12-13 14:13:03,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:13:03,075 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 14:13:03,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:13:03,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1253453702, now seen corresponding path program 2 times [2022-12-13 14:13:03,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:13:03,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1990371086] [2022-12-13 14:13:03,076 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 14:13:03,076 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:13:03,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:13:03,077 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 14:13:03,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-12-13 14:13:03,155 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 14:13:03,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:13:03,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 14:13:03,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:13:03,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:13:03,193 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:13:03,194 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:13:03,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1990371086] [2022-12-13 14:13:03,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1990371086] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:13:03,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:13:03,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:13:03,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140339997] [2022-12-13 14:13:03,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:13:03,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 14:13:03,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:13:03,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 14:13:03,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 14:13:03,205 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 252 [2022-12-13 14:13:03,206 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 31 transitions, 128 flow. Second operand has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:03,206 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:13:03,206 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 252 [2022-12-13 14:13:03,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:13:03,396 INFO L130 PetriNetUnfolder]: 398/729 cut-off events. [2022-12-13 14:13:03,396 INFO L131 PetriNetUnfolder]: For 527/527 co-relation queries the response was YES. [2022-12-13 14:13:03,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2179 conditions, 729 events. 398/729 cut-off events. For 527/527 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3185 event pairs, 126 based on Foata normal form. 1/730 useless extension candidates. Maximal degree in co-relation 2170. Up to 440 conditions per place. [2022-12-13 14:13:03,401 INFO L137 encePairwiseOnDemand]: 247/252 looper letters, 51 selfloop transitions, 4 changer transitions 0/55 dead transitions. [2022-12-13 14:13:03,401 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 55 transitions, 333 flow [2022-12-13 14:13:03,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 14:13:03,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 14:13:03,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 476 transitions. [2022-12-13 14:13:03,402 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4722222222222222 [2022-12-13 14:13:03,403 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 476 transitions. [2022-12-13 14:13:03,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 476 transitions. [2022-12-13 14:13:03,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:13:03,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 476 transitions. [2022-12-13 14:13:03,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:03,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 252.0) internal successors, (1260), 5 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:03,406 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 252.0) internal successors, (1260), 5 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:03,406 INFO L175 Difference]: Start difference. First operand has 41 places, 31 transitions, 128 flow. Second operand 4 states and 476 transitions. [2022-12-13 14:13:03,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 55 transitions, 333 flow [2022-12-13 14:13:03,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 55 transitions, 330 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 14:13:03,410 INFO L231 Difference]: Finished difference. Result has 44 places, 32 transitions, 143 flow [2022-12-13 14:13:03,410 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=143, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2022-12-13 14:13:03,410 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, 4 predicate places. [2022-12-13 14:13:03,411 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 143 flow [2022-12-13 14:13:03,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:03,411 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:13:03,411 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:13:03,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-12-13 14:13:03,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:13:03,612 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 14:13:03,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:13:03,613 INFO L85 PathProgramCache]: Analyzing trace with hash -830892068, now seen corresponding path program 3 times [2022-12-13 14:13:03,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:13:03,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068894525] [2022-12-13 14:13:03,614 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 14:13:03,614 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:13:03,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:13:03,616 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 14:13:03,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-12-13 14:13:03,706 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-13 14:13:03,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:13:03,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 14:13:03,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:13:03,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:13:03,735 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:13:03,735 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:13:03,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2068894525] [2022-12-13 14:13:03,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2068894525] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:13:03,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:13:03,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:13:03,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825304414] [2022-12-13 14:13:03,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:13:03,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 14:13:03,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:13:03,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 14:13:03,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 14:13:03,745 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 252 [2022-12-13 14:13:03,746 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 143 flow. Second operand has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:03,746 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:13:03,746 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 252 [2022-12-13 14:13:03,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:13:03,978 INFO L130 PetriNetUnfolder]: 545/1040 cut-off events. [2022-12-13 14:13:03,978 INFO L131 PetriNetUnfolder]: For 914/914 co-relation queries the response was YES. [2022-12-13 14:13:03,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3130 conditions, 1040 events. 545/1040 cut-off events. For 914/914 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5429 event pairs, 144 based on Foata normal form. 1/1041 useless extension candidates. Maximal degree in co-relation 3120. Up to 467 conditions per place. [2022-12-13 14:13:03,982 INFO L137 encePairwiseOnDemand]: 248/252 looper letters, 82 selfloop transitions, 5 changer transitions 0/87 dead transitions. [2022-12-13 14:13:03,982 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 87 transitions, 546 flow [2022-12-13 14:13:03,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:13:03,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 14:13:03,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 602 transitions. [2022-12-13 14:13:03,985 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4777777777777778 [2022-12-13 14:13:03,985 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 602 transitions. [2022-12-13 14:13:03,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 602 transitions. [2022-12-13 14:13:03,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:13:03,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 602 transitions. [2022-12-13 14:13:03,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:03,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 252.0) internal successors, (1512), 6 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:03,987 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 252.0) internal successors, (1512), 6 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:03,988 INFO L175 Difference]: Start difference. First operand has 44 places, 32 transitions, 143 flow. Second operand 5 states and 602 transitions. [2022-12-13 14:13:03,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 87 transitions, 546 flow [2022-12-13 14:13:03,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 87 transitions, 540 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 14:13:03,991 INFO L231 Difference]: Finished difference. Result has 48 places, 34 transitions, 165 flow [2022-12-13 14:13:03,991 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=165, PETRI_PLACES=48, PETRI_TRANSITIONS=34} [2022-12-13 14:13:03,992 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, 8 predicate places. [2022-12-13 14:13:03,992 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 34 transitions, 165 flow [2022-12-13 14:13:03,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:03,992 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:13:03,992 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:13:04,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-12-13 14:13:04,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:13:04,193 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 14:13:04,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:13:04,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1892773826, now seen corresponding path program 4 times [2022-12-13 14:13:04,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:13:04,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [744005119] [2022-12-13 14:13:04,194 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 14:13:04,194 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:13:04,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:13:04,195 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 14:13:04,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-12-13 14:13:04,283 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 14:13:04,283 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:13:04,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-13 14:13:04,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:13:04,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:13:04,442 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:13:04,442 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:13:04,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [744005119] [2022-12-13 14:13:04,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [744005119] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:13:04,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:13:04,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:13:04,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267511746] [2022-12-13 14:13:04,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:13:04,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:13:04,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:13:04,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:13:04,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:13:04,482 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 252 [2022-12-13 14:13:04,483 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 34 transitions, 165 flow. Second operand has 7 states, 7 states have (on average 109.57142857142857) internal successors, (767), 7 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:04,483 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:13:04,483 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 252 [2022-12-13 14:13:04,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:13:04,785 INFO L130 PetriNetUnfolder]: 539/1168 cut-off events. [2022-12-13 14:13:04,785 INFO L131 PetriNetUnfolder]: For 1204/1204 co-relation queries the response was YES. [2022-12-13 14:13:04,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3663 conditions, 1168 events. 539/1168 cut-off events. For 1204/1204 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 7450 event pairs, 42 based on Foata normal form. 1/1168 useless extension candidates. Maximal degree in co-relation 3651. Up to 487 conditions per place. [2022-12-13 14:13:04,792 INFO L137 encePairwiseOnDemand]: 246/252 looper letters, 62 selfloop transitions, 6 changer transitions 0/73 dead transitions. [2022-12-13 14:13:04,792 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 73 transitions, 474 flow [2022-12-13 14:13:04,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:13:04,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 14:13:04,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 797 transitions. [2022-12-13 14:13:04,794 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4518140589569161 [2022-12-13 14:13:04,794 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 797 transitions. [2022-12-13 14:13:04,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 797 transitions. [2022-12-13 14:13:04,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:13:04,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 797 transitions. [2022-12-13 14:13:04,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 113.85714285714286) internal successors, (797), 7 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:04,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 252.0) internal successors, (2016), 8 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:04,797 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 252.0) internal successors, (2016), 8 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:04,797 INFO L175 Difference]: Start difference. First operand has 48 places, 34 transitions, 165 flow. Second operand 7 states and 797 transitions. [2022-12-13 14:13:04,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 73 transitions, 474 flow [2022-12-13 14:13:04,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 73 transitions, 467 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-12-13 14:13:04,803 INFO L231 Difference]: Finished difference. Result has 55 places, 36 transitions, 182 flow [2022-12-13 14:13:04,803 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=182, PETRI_PLACES=55, PETRI_TRANSITIONS=36} [2022-12-13 14:13:04,803 INFO L288 CegarLoopForPetriNet]: 40 programPoint places, 15 predicate places. [2022-12-13 14:13:04,804 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 36 transitions, 182 flow [2022-12-13 14:13:04,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 109.57142857142857) internal successors, (767), 7 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:13:04,804 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:13:04,804 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:13:04,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-12-13 14:13:05,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:13:05,005 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-12-13 14:13:05,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:13:05,006 INFO L85 PathProgramCache]: Analyzing trace with hash -392335148, now seen corresponding path program 5 times [2022-12-13 14:13:05,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:13:05,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [803281181] [2022-12-13 14:13:05,006 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 14:13:05,006 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:13:05,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:13:05,008 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 14:13:05,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-12-13 14:13:05,138 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 14:13:05,138 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-12-13 14:13:05,138 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:13:05,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:13:05,224 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 14:13:05,224 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 14:13:05,225 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2022-12-13 14:13:05,226 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (11 of 13 remaining) [2022-12-13 14:13:05,227 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2022-12-13 14:13:05,227 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2022-12-13 14:13:05,227 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2022-12-13 14:13:05,227 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2022-12-13 14:13:05,227 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2022-12-13 14:13:05,227 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2022-12-13 14:13:05,227 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (4 of 13 remaining) [2022-12-13 14:13:05,227 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2022-12-13 14:13:05,227 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2022-12-13 14:13:05,227 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2022-12-13 14:13:05,227 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining) [2022-12-13 14:13:05,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-12-13 14:13:05,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 14:13:05,428 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1] [2022-12-13 14:13:05,434 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 14:13:05,434 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 14:13:05,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 02:13:05 BasicIcfg [2022-12-13 14:13:05,484 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 14:13:05,484 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 14:13:05,484 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 14:13:05,485 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 14:13:05,485 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:12:52" (3/4) ... [2022-12-13 14:13:05,488 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 14:13:05,488 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 14:13:05,488 INFO L158 Benchmark]: Toolchain (without parser) took 13737.47ms. Allocated memory was 79.7MB in the beginning and 142.6MB in the end (delta: 62.9MB). Free memory was 41.8MB in the beginning and 58.4MB in the end (delta: -16.6MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2022-12-13 14:13:05,489 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 58.7MB. Free memory was 37.2MB in the beginning and 37.2MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:13:05,489 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.15ms. Allocated memory is still 79.7MB. Free memory was 41.6MB in the beginning and 36.5MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-13 14:13:05,489 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.17ms. Allocated memory is still 79.7MB. Free memory was 36.5MB in the beginning and 57.4MB in the end (delta: -20.9MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. [2022-12-13 14:13:05,490 INFO L158 Benchmark]: Boogie Preprocessor took 28.94ms. Allocated memory is still 79.7MB. Free memory was 57.4MB in the beginning and 55.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:13:05,490 INFO L158 Benchmark]: RCFGBuilder took 548.28ms. Allocated memory is still 79.7MB. Free memory was 55.5MB in the beginning and 39.3MB in the end (delta: 16.2MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. [2022-12-13 14:13:05,491 INFO L158 Benchmark]: TraceAbstraction took 12757.75ms. Allocated memory was 79.7MB in the beginning and 142.6MB in the end (delta: 62.9MB). Free memory was 38.5MB in the beginning and 58.4MB in the end (delta: -19.9MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-12-13 14:13:05,491 INFO L158 Benchmark]: Witness Printer took 3.41ms. Allocated memory is still 142.6MB. Free memory is still 58.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:13:05,493 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 58.7MB. Free memory was 37.2MB in the beginning and 37.2MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.15ms. Allocated memory is still 79.7MB. Free memory was 41.6MB in the beginning and 36.5MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.17ms. Allocated memory is still 79.7MB. Free memory was 36.5MB in the beginning and 57.4MB in the end (delta: -20.9MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.94ms. Allocated memory is still 79.7MB. Free memory was 57.4MB in the beginning and 55.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 548.28ms. Allocated memory is still 79.7MB. Free memory was 55.5MB in the beginning and 39.3MB in the end (delta: 16.2MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. * TraceAbstraction took 12757.75ms. Allocated memory was 79.7MB in the beginning and 142.6MB in the end (delta: 62.9MB). Free memory was 38.5MB in the beginning and 58.4MB in the end (delta: -19.9MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 3.41ms. Allocated memory is still 142.6MB. Free memory is still 58.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.3s, 130 PlacesBefore, 40 PlacesAfterwards, 122 TransitionsBefore, 31 TransitionsAfterwards, 2164 CoEnabledTransitionPairs, 6 FixpointIterations, 55 TrivialSequentialCompositions, 64 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 127 TotalNumberOfCompositions, 5274 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2431, independent: 2281, independent conditional: 0, independent unconditional: 2281, dependent: 150, dependent conditional: 0, dependent unconditional: 150, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1176, independent: 1135, independent conditional: 0, independent unconditional: 1135, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2431, independent: 1146, independent conditional: 0, independent unconditional: 1146, dependent: 109, dependent conditional: 0, dependent unconditional: 109, unknown: 1176, unknown conditional: 0, unknown unconditional: 1176] , Statistics on independence cache: Total cache size (in pairs): 97, Positive cache size: 83, Positive conditional cache size: 0, Positive unconditional cache size: 83, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p0_EBX = 0; [L716] 0 int __unbuffered_p2_EAX = 0; [L717] 0 _Bool main$tmp_guard0; [L718] 0 _Bool main$tmp_guard1; [L720] 0 int x = 0; [L721] 0 _Bool x$flush_delayed; [L722] 0 int x$mem_tmp; [L723] 0 _Bool x$r_buff0_thd0; [L724] 0 _Bool x$r_buff0_thd1; [L725] 0 _Bool x$r_buff0_thd2; [L726] 0 _Bool x$r_buff0_thd3; [L727] 0 _Bool x$r_buff1_thd0; [L728] 0 _Bool x$r_buff1_thd1; [L729] 0 _Bool x$r_buff1_thd2; [L730] 0 _Bool x$r_buff1_thd3; [L731] 0 _Bool x$read_delayed; [L732] 0 int *x$read_delayed_var; [L733] 0 int x$w_buff0; [L734] 0 _Bool x$w_buff0_used; [L735] 0 int x$w_buff1; [L736] 0 _Bool x$w_buff1_used; [L738] 0 int y = 0; [L739] 0 _Bool weak$$choice0; [L740] 0 _Bool weak$$choice2; [L829] 0 pthread_t t1828; [L830] FCALL, FORK 0 pthread_create(&t1828, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1828, ((void *)0), P0, ((void *)0))=-1, t1828={-6:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L831] 0 pthread_t t1829; [L832] FCALL, FORK 0 pthread_create(&t1829, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1829, ((void *)0), P1, ((void *)0))=0, t1828={-6:0}, t1829={-10:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L833] 0 pthread_t t1830; [L834] FCALL, FORK 0 pthread_create(&t1830, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1830, ((void *)0), P2, ((void *)0))=1, t1828={-6:0}, t1829={-10:0}, t1830={-2:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L772] 2 x$w_buff1 = x$w_buff0 [L773] 2 x$w_buff0 = 1 [L774] 2 x$w_buff1_used = x$w_buff0_used [L775] 2 x$w_buff0_used = (_Bool)1 [L776] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L776] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L777] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L778] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L779] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L780] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L781] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0] [L784] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L801] 3 __unbuffered_p2_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L804] 3 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L744] 1 __unbuffered_p0_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=2, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L747] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L748] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L749] 1 x$flush_delayed = weak$$choice2 [L750] 1 x$mem_tmp = x [L751] 1 x = !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L752] 1 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L753] 1 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L754] 1 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L755] 1 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L756] 1 x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L757] 1 x$r_buff1_thd1 = weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L758] 1 __unbuffered_p0_EBX = x [L759] 1 x = x$flush_delayed ? x$mem_tmp : x [L760] 1 x$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=2, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L765] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L767] 1 return 0; [L807] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L808] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L809] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L810] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L811] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=2, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L787] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L788] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L789] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L790] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L791] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=2, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] [L794] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L796] 2 return 0; [L814] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L816] 3 return 0; [L836] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L838] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L838] RET 0 assume_abort_if_not(main$tmp_guard0) [L840] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L841] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L842] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L843] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L844] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=2, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1828={-6:0}, t1829={-10:0}, t1830={-2:0}, weak$$choice0=2, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] [L847] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p0_EAX == 2 && __unbuffered_p0_EBX == 0 && __unbuffered_p2_EAX == 1) [L849] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression [L19] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=2, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 827]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 832]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 830]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 834]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 151 locations, 13 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: 12.6s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 312 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 247 mSDsluCounter, 106 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 88 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1033 IncrementalHoareTripleChecker+Invalid, 1077 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 18 mSDtfsCounter, 1033 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=182occurred in iteration=9, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 467 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1100 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 14:13:05,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_899821f6-7ee4-47a9-b6ff-44a79e8bba16/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample