./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe032_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83326e66-9a32-47d3-9819-afb42759dff7/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83326e66-9a32-47d3-9819-afb42759dff7/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83326e66-9a32-47d3-9819-afb42759dff7/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83326e66-9a32-47d3-9819-afb42759dff7/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe032_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83326e66-9a32-47d3-9819-afb42759dff7/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83326e66-9a32-47d3-9819-afb42759dff7/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ffff09405c16ea86880fae0b9b6268edfa5ef4b2d03cee31a9e4f2e1ac044811 --- 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-8393723 [2022-11-18 21:11:37,462 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:11:37,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:11:37,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:11:37,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:11:37,500 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:11:37,503 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:11:37,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:11:37,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:11:37,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:11:37,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:11:37,521 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:11:37,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:11:37,524 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:11:37,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:11:37,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:11:37,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:11:37,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:11:37,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:11:37,542 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:11:37,544 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:11:37,545 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:11:37,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:11:37,549 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:11:37,557 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:11:37,558 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:11:37,558 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:11:37,560 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:11:37,561 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:11:37,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:11:37,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:11:37,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:11:37,566 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:11:37,567 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:11:37,569 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:11:37,570 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:11:37,571 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:11:37,571 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:11:37,571 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:11:37,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:11:37,573 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:11:37,574 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83326e66-9a32-47d3-9819-afb42759dff7/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 21:11:37,611 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:11:37,616 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:11:37,617 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:11:37,617 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:11:37,618 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:11:37,618 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:11:37,619 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:11:37,619 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:11:37,619 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:11:37,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:11:37,621 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 21:11:37,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 21:11:37,621 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 21:11:37,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:11:37,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 21:11:37,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:11:37,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 21:11:37,622 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 21:11:37,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 21:11:37,623 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:11:37,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 21:11:37,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:11:37,623 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:11:37,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:11:37,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:11:37,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:11:37,626 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:11:37,626 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 21:11:37,626 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 21:11:37,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 21:11:37,627 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 21:11:37,627 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 21:11:37,627 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 21:11:37,627 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83326e66-9a32-47d3-9819-afb42759dff7/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83326e66-9a32-47d3-9819-afb42759dff7/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ffff09405c16ea86880fae0b9b6268edfa5ef4b2d03cee31a9e4f2e1ac044811 [2022-11-18 21:11:37,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:11:37,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:11:37,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:11:37,969 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:11:37,973 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:11:37,974 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83326e66-9a32-47d3-9819-afb42759dff7/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-wmm/safe032_tso.i [2022-11-18 21:11:38,071 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83326e66-9a32-47d3-9819-afb42759dff7/bin/uautomizer-TMbwUNV5ro/data/0bf40e18a/679b93a6a0154663909033815706f05e/FLAGf30ab3a50 [2022-11-18 21:11:38,745 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:11:38,746 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83326e66-9a32-47d3-9819-afb42759dff7/sv-benchmarks/c/pthread-wmm/safe032_tso.i [2022-11-18 21:11:38,764 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83326e66-9a32-47d3-9819-afb42759dff7/bin/uautomizer-TMbwUNV5ro/data/0bf40e18a/679b93a6a0154663909033815706f05e/FLAGf30ab3a50 [2022-11-18 21:11:38,971 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83326e66-9a32-47d3-9819-afb42759dff7/bin/uautomizer-TMbwUNV5ro/data/0bf40e18a/679b93a6a0154663909033815706f05e [2022-11-18 21:11:38,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:11:38,978 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:11:38,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:11:38,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:11:38,988 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:11:38,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:11:38" (1/1) ... [2022-11-18 21:11:38,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@355fbd0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:38, skipping insertion in model container [2022-11-18 21:11:38,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:11:38" (1/1) ... [2022-11-18 21:11:39,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:11:39,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:11:39,324 WARN L234 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_83326e66-9a32-47d3-9819-afb42759dff7/sv-benchmarks/c/pthread-wmm/safe032_tso.i[945,958] [2022-11-18 21:11:39,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:11:39,555 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:11:39,571 WARN L234 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_83326e66-9a32-47d3-9819-afb42759dff7/sv-benchmarks/c/pthread-wmm/safe032_tso.i[945,958] [2022-11-18 21:11:39,613 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:11:39,661 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:11:39,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:39 WrapperNode [2022-11-18 21:11:39,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:11:39,663 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:11:39,664 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:11:39,664 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:11:39,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:39" (1/1) ... [2022-11-18 21:11:39,691 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:39" (1/1) ... [2022-11-18 21:11:39,723 INFO L138 Inliner]: procedures = 176, calls = 57, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-11-18 21:11:39,723 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:11:39,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:11:39,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:11:39,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:11:39,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:39" (1/1) ... [2022-11-18 21:11:39,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:39" (1/1) ... [2022-11-18 21:11:39,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:39" (1/1) ... [2022-11-18 21:11:39,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:39" (1/1) ... [2022-11-18 21:11:39,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:39" (1/1) ... [2022-11-18 21:11:39,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:39" (1/1) ... [2022-11-18 21:11:39,774 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:39" (1/1) ... [2022-11-18 21:11:39,775 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:39" (1/1) ... [2022-11-18 21:11:39,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:11:39,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:11:39,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:11:39,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:11:39,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:39" (1/1) ... [2022-11-18 21:11:39,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:11:39,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83326e66-9a32-47d3-9819-afb42759dff7/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:11:39,844 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83326e66-9a32-47d3-9819-afb42759dff7/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:11:39,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83326e66-9a32-47d3-9819-afb42759dff7/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:11:39,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 21:11:39,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 21:11:39,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 21:11:39,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 21:11:39,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 21:11:39,921 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-18 21:11:39,921 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-18 21:11:39,923 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-18 21:11:39,924 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-18 21:11:39,925 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-18 21:11:39,926 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-18 21:11:39,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 21:11:39,927 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 21:11:39,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:11:39,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:11:39,928 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 21:11:40,161 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:11:40,164 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:11:40,457 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:11:40,466 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:11:40,466 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 21:11:40,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:11:40 BoogieIcfgContainer [2022-11-18 21:11:40,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:11:40,477 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:11:40,478 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:11:40,485 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:11:40,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:11:38" (1/3) ... [2022-11-18 21:11:40,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@459057a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:11:40, skipping insertion in model container [2022-11-18 21:11:40,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:39" (2/3) ... [2022-11-18 21:11:40,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@459057a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:11:40, skipping insertion in model container [2022-11-18 21:11:40,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:11:40" (3/3) ... [2022-11-18 21:11:40,489 INFO L112 eAbstractionObserver]: Analyzing ICFG safe032_tso.i [2022-11-18 21:11:40,503 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 21:11:40,518 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:11:40,518 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 21:11:40,518 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 21:11:40,654 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 21:11:40,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 91 transitions, 197 flow [2022-11-18 21:11:40,818 INFO L130 PetriNetUnfolder]: 2/88 cut-off events. [2022-11-18 21:11:40,818 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 21:11:40,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2022-11-18 21:11:40,826 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 91 transitions, 197 flow [2022-11-18 21:11:40,834 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 74 transitions, 157 flow [2022-11-18 21:11:40,855 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:11:40,868 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@581d928a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:11:40,869 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-18 21:11:40,924 INFO L130 PetriNetUnfolder]: 1/73 cut-off events. [2022-11-18 21:11:40,924 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 21:11:40,924 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:40,926 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:40,927 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-18 21:11:40,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:40,933 INFO L85 PathProgramCache]: Analyzing trace with hash -566503672, now seen corresponding path program 1 times [2022-11-18 21:11:40,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:40,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262057639] [2022-11-18 21:11:40,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:40,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:41,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:41,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:41,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:41,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262057639] [2022-11-18 21:11:41,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262057639] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:41,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:41,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 21:11:41,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139385281] [2022-11-18 21:11:41,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:41,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 21:11:41,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:41,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 21:11:41,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 21:11:41,999 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 91 [2022-11-18 21:11:42,004 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 74 transitions, 157 flow. Second operand has 7 states, 7 states have (on average 69.85714285714286) internal successors, (489), 7 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:42,005 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:42,006 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 91 [2022-11-18 21:11:42,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:42,526 INFO L130 PetriNetUnfolder]: 344/796 cut-off events. [2022-11-18 21:11:42,526 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-18 21:11:42,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1401 conditions, 796 events. 344/796 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4072 event pairs, 25 based on Foata normal form. 36/792 useless extension candidates. Maximal degree in co-relation 1364. Up to 102 conditions per place. [2022-11-18 21:11:42,541 INFO L137 encePairwiseOnDemand]: 80/91 looper letters, 27 selfloop transitions, 6 changer transitions 53/140 dead transitions. [2022-11-18 21:11:42,541 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 140 transitions, 467 flow [2022-11-18 21:11:42,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 21:11:42,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-18 21:11:42,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 976 transitions. [2022-11-18 21:11:42,577 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8250211327134404 [2022-11-18 21:11:42,578 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 976 transitions. [2022-11-18 21:11:42,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 976 transitions. [2022-11-18 21:11:42,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:42,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 976 transitions. [2022-11-18 21:11:42,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 75.07692307692308) internal successors, (976), 13 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:42,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:42,612 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:42,615 INFO L175 Difference]: Start difference. First operand has 83 places, 74 transitions, 157 flow. Second operand 13 states and 976 transitions. [2022-11-18 21:11:42,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 140 transitions, 467 flow [2022-11-18 21:11:42,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 140 transitions, 462 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 21:11:42,634 INFO L231 Difference]: Finished difference. Result has 104 places, 77 transitions, 238 flow [2022-11-18 21:11:42,637 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=238, PETRI_PLACES=104, PETRI_TRANSITIONS=77} [2022-11-18 21:11:42,644 INFO L288 CegarLoopForPetriNet]: 83 programPoint places, 21 predicate places. [2022-11-18 21:11:42,645 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 77 transitions, 238 flow [2022-11-18 21:11:42,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.85714285714286) internal successors, (489), 7 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:42,646 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:42,647 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:42,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 21:11:42,648 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-18 21:11:42,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:42,650 INFO L85 PathProgramCache]: Analyzing trace with hash -981815512, now seen corresponding path program 1 times [2022-11-18 21:11:42,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:42,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951426084] [2022-11-18 21:11:42,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:42,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:43,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:43,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:43,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951426084] [2022-11-18 21:11:43,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951426084] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:43,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:43,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 21:11:43,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163503333] [2022-11-18 21:11:43,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:43,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:11:43,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:43,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:11:43,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:11:43,070 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 91 [2022-11-18 21:11:43,071 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 77 transitions, 238 flow. Second operand has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:43,071 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:43,071 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 91 [2022-11-18 21:11:43,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:43,393 INFO L130 PetriNetUnfolder]: 91/417 cut-off events. [2022-11-18 21:11:43,394 INFO L131 PetriNetUnfolder]: For 881/1166 co-relation queries the response was YES. [2022-11-18 21:11:43,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1149 conditions, 417 events. 91/417 cut-off events. For 881/1166 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2274 event pairs, 34 based on Foata normal form. 23/413 useless extension candidates. Maximal degree in co-relation 1104. Up to 93 conditions per place. [2022-11-18 21:11:43,399 INFO L137 encePairwiseOnDemand]: 85/91 looper letters, 17 selfloop transitions, 3 changer transitions 26/107 dead transitions. [2022-11-18 21:11:43,400 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 107 transitions, 552 flow [2022-11-18 21:11:43,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 21:11:43,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 21:11:43,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 693 transitions. [2022-11-18 21:11:43,404 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8461538461538461 [2022-11-18 21:11:43,404 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 693 transitions. [2022-11-18 21:11:43,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 693 transitions. [2022-11-18 21:11:43,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:43,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 693 transitions. [2022-11-18 21:11:43,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 77.0) internal successors, (693), 9 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:43,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:43,410 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:43,411 INFO L175 Difference]: Start difference. First operand has 104 places, 77 transitions, 238 flow. Second operand 9 states and 693 transitions. [2022-11-18 21:11:43,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 107 transitions, 552 flow [2022-11-18 21:11:43,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 107 transitions, 535 flow, removed 7 selfloop flow, removed 4 redundant places. [2022-11-18 21:11:43,421 INFO L231 Difference]: Finished difference. Result has 106 places, 77 transitions, 253 flow [2022-11-18 21:11:43,421 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=253, PETRI_PLACES=106, PETRI_TRANSITIONS=77} [2022-11-18 21:11:43,422 INFO L288 CegarLoopForPetriNet]: 83 programPoint places, 23 predicate places. [2022-11-18 21:11:43,423 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 77 transitions, 253 flow [2022-11-18 21:11:43,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:43,424 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:43,424 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:43,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 21:11:43,425 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-18 21:11:43,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:43,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1421505866, now seen corresponding path program 1 times [2022-11-18 21:11:43,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:43,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742366422] [2022-11-18 21:11:43,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:43,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:43,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:43,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:43,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:43,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742366422] [2022-11-18 21:11:43,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742366422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:43,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:43,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 21:11:43,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35355308] [2022-11-18 21:11:43,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:43,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 21:11:43,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:43,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 21:11:43,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 21:11:43,739 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 91 [2022-11-18 21:11:43,740 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 77 transitions, 253 flow. Second operand has 7 states, 7 states have (on average 70.28571428571429) internal successors, (492), 7 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:43,740 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:43,741 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 91 [2022-11-18 21:11:43,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:44,094 INFO L130 PetriNetUnfolder]: 95/405 cut-off events. [2022-11-18 21:11:44,095 INFO L131 PetriNetUnfolder]: For 942/1179 co-relation queries the response was YES. [2022-11-18 21:11:44,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1182 conditions, 405 events. 95/405 cut-off events. For 942/1179 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1905 event pairs, 3 based on Foata normal form. 9/401 useless extension candidates. Maximal degree in co-relation 1130. Up to 95 conditions per place. [2022-11-18 21:11:44,099 INFO L137 encePairwiseOnDemand]: 79/91 looper letters, 28 selfloop transitions, 13 changer transitions 34/129 dead transitions. [2022-11-18 21:11:44,100 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 129 transitions, 794 flow [2022-11-18 21:11:44,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 21:11:44,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-18 21:11:44,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 955 transitions. [2022-11-18 21:11:44,104 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8072696534234995 [2022-11-18 21:11:44,104 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 955 transitions. [2022-11-18 21:11:44,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 955 transitions. [2022-11-18 21:11:44,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:44,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 955 transitions. [2022-11-18 21:11:44,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 73.46153846153847) internal successors, (955), 13 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:44,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:44,114 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:44,115 INFO L175 Difference]: Start difference. First operand has 106 places, 77 transitions, 253 flow. Second operand 13 states and 955 transitions. [2022-11-18 21:11:44,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 129 transitions, 794 flow [2022-11-18 21:11:44,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 129 transitions, 738 flow, removed 24 selfloop flow, removed 7 redundant places. [2022-11-18 21:11:44,126 INFO L231 Difference]: Finished difference. Result has 117 places, 84 transitions, 373 flow [2022-11-18 21:11:44,127 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=373, PETRI_PLACES=117, PETRI_TRANSITIONS=84} [2022-11-18 21:11:44,129 INFO L288 CegarLoopForPetriNet]: 83 programPoint places, 34 predicate places. [2022-11-18 21:11:44,130 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 84 transitions, 373 flow [2022-11-18 21:11:44,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.28571428571429) internal successors, (492), 7 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:44,130 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:44,131 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:44,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 21:11:44,131 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-18 21:11:44,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:44,134 INFO L85 PathProgramCache]: Analyzing trace with hash -223321621, now seen corresponding path program 1 times [2022-11-18 21:11:44,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:44,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045611523] [2022-11-18 21:11:44,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:44,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:44,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:44,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:44,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045611523] [2022-11-18 21:11:44,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045611523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:44,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:44,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 21:11:44,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360030333] [2022-11-18 21:11:44,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:44,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:11:44,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:44,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:11:44,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:11:44,474 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 91 [2022-11-18 21:11:44,475 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 84 transitions, 373 flow. Second operand has 6 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:44,475 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:44,475 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 91 [2022-11-18 21:11:44,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:44,809 INFO L130 PetriNetUnfolder]: 327/941 cut-off events. [2022-11-18 21:11:44,809 INFO L131 PetriNetUnfolder]: For 869/981 co-relation queries the response was YES. [2022-11-18 21:11:44,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2055 conditions, 941 events. 327/941 cut-off events. For 869/981 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 6716 event pairs, 9 based on Foata normal form. 20/880 useless extension candidates. Maximal degree in co-relation 1997. Up to 230 conditions per place. [2022-11-18 21:11:44,826 INFO L137 encePairwiseOnDemand]: 81/91 looper letters, 29 selfloop transitions, 17 changer transitions 0/116 dead transitions. [2022-11-18 21:11:44,826 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 116 transitions, 533 flow [2022-11-18 21:11:44,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 21:11:44,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-18 21:11:44,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 788 transitions. [2022-11-18 21:11:44,830 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.865934065934066 [2022-11-18 21:11:44,830 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 788 transitions. [2022-11-18 21:11:44,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 788 transitions. [2022-11-18 21:11:44,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:44,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 788 transitions. [2022-11-18 21:11:44,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 78.8) internal successors, (788), 10 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:44,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:44,842 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:44,842 INFO L175 Difference]: Start difference. First operand has 117 places, 84 transitions, 373 flow. Second operand 10 states and 788 transitions. [2022-11-18 21:11:44,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 116 transitions, 533 flow [2022-11-18 21:11:44,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 116 transitions, 503 flow, removed 15 selfloop flow, removed 9 redundant places. [2022-11-18 21:11:44,855 INFO L231 Difference]: Finished difference. Result has 114 places, 99 transitions, 463 flow [2022-11-18 21:11:44,855 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=463, PETRI_PLACES=114, PETRI_TRANSITIONS=99} [2022-11-18 21:11:44,857 INFO L288 CegarLoopForPetriNet]: 83 programPoint places, 31 predicate places. [2022-11-18 21:11:44,863 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 99 transitions, 463 flow [2022-11-18 21:11:44,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:44,864 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:44,864 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:44,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 21:11:44,865 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-18 21:11:44,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:44,866 INFO L85 PathProgramCache]: Analyzing trace with hash 480485684, now seen corresponding path program 1 times [2022-11-18 21:11:44,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:44,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770291761] [2022-11-18 21:11:44,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:44,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:44,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:45,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:45,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:45,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770291761] [2022-11-18 21:11:45,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770291761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:45,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:45,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 21:11:45,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004826493] [2022-11-18 21:11:45,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:45,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 21:11:45,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:45,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 21:11:45,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 21:11:45,218 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 91 [2022-11-18 21:11:45,219 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 99 transitions, 463 flow. Second operand has 7 states, 7 states have (on average 75.57142857142857) internal successors, (529), 7 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:45,219 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:45,219 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 91 [2022-11-18 21:11:45,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:45,648 INFO L130 PetriNetUnfolder]: 302/877 cut-off events. [2022-11-18 21:11:45,648 INFO L131 PetriNetUnfolder]: For 2076/2364 co-relation queries the response was YES. [2022-11-18 21:11:45,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2973 conditions, 877 events. 302/877 cut-off events. For 2076/2364 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 6431 event pairs, 2 based on Foata normal form. 88/909 useless extension candidates. Maximal degree in co-relation 2915. Up to 280 conditions per place. [2022-11-18 21:11:45,662 INFO L137 encePairwiseOnDemand]: 81/91 looper letters, 22 selfloop transitions, 32 changer transitions 13/137 dead transitions. [2022-11-18 21:11:45,662 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 137 transitions, 833 flow [2022-11-18 21:11:45,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 21:11:45,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-18 21:11:45,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1025 transitions. [2022-11-18 21:11:45,666 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8664412510566357 [2022-11-18 21:11:45,666 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1025 transitions. [2022-11-18 21:11:45,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1025 transitions. [2022-11-18 21:11:45,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:45,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1025 transitions. [2022-11-18 21:11:45,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 78.84615384615384) internal successors, (1025), 13 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:45,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:45,675 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 91.0) internal successors, (1274), 14 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:45,676 INFO L175 Difference]: Start difference. First operand has 114 places, 99 transitions, 463 flow. Second operand 13 states and 1025 transitions. [2022-11-18 21:11:45,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 137 transitions, 833 flow [2022-11-18 21:11:45,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 137 transitions, 813 flow, removed 9 selfloop flow, removed 4 redundant places. [2022-11-18 21:11:45,692 INFO L231 Difference]: Finished difference. Result has 126 places, 115 transitions, 646 flow [2022-11-18 21:11:45,693 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=443, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=646, PETRI_PLACES=126, PETRI_TRANSITIONS=115} [2022-11-18 21:11:45,696 INFO L288 CegarLoopForPetriNet]: 83 programPoint places, 43 predicate places. [2022-11-18 21:11:45,696 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 115 transitions, 646 flow [2022-11-18 21:11:45,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.57142857142857) internal successors, (529), 7 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:45,697 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:45,697 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:45,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 21:11:45,698 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-18 21:11:45,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:45,699 INFO L85 PathProgramCache]: Analyzing trace with hash -221322569, now seen corresponding path program 1 times [2022-11-18 21:11:45,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:45,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920964306] [2022-11-18 21:11:45,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:45,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:45,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:46,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:46,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:46,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920964306] [2022-11-18 21:11:46,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920964306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:46,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:46,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 21:11:46,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347207117] [2022-11-18 21:11:46,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:46,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 21:11:46,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:46,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 21:11:46,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-18 21:11:46,006 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 91 [2022-11-18 21:11:46,008 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 115 transitions, 646 flow. Second operand has 8 states, 8 states have (on average 75.5) internal successors, (604), 8 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:46,008 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:46,008 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 91 [2022-11-18 21:11:46,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:46,439 INFO L130 PetriNetUnfolder]: 260/784 cut-off events. [2022-11-18 21:11:46,440 INFO L131 PetriNetUnfolder]: For 3078/3341 co-relation queries the response was YES. [2022-11-18 21:11:46,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3148 conditions, 784 events. 260/784 cut-off events. For 3078/3341 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 5934 event pairs, 2 based on Foata normal form. 60/788 useless extension candidates. Maximal degree in co-relation 3087. Up to 234 conditions per place. [2022-11-18 21:11:46,449 INFO L137 encePairwiseOnDemand]: 83/91 looper letters, 0 selfloop transitions, 0 changer transitions 122/122 dead transitions. [2022-11-18 21:11:46,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 122 transitions, 825 flow [2022-11-18 21:11:46,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 21:11:46,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-18 21:11:46,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1163 transitions. [2022-11-18 21:11:46,454 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.852014652014652 [2022-11-18 21:11:46,454 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1163 transitions. [2022-11-18 21:11:46,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1163 transitions. [2022-11-18 21:11:46,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:46,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1163 transitions. [2022-11-18 21:11:46,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 77.53333333333333) internal successors, (1163), 15 states have internal predecessors, (1163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:46,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 91.0) internal successors, (1456), 16 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:46,464 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 91.0) internal successors, (1456), 16 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:46,464 INFO L175 Difference]: Start difference. First operand has 126 places, 115 transitions, 646 flow. Second operand 15 states and 1163 transitions. [2022-11-18 21:11:46,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 122 transitions, 825 flow [2022-11-18 21:11:46,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 122 transitions, 653 flow, removed 58 selfloop flow, removed 15 redundant places. [2022-11-18 21:11:46,499 INFO L231 Difference]: Finished difference. Result has 116 places, 0 transitions, 0 flow [2022-11-18 21:11:46,500 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=0, PETRI_PLACES=116, PETRI_TRANSITIONS=0} [2022-11-18 21:11:46,503 INFO L288 CegarLoopForPetriNet]: 83 programPoint places, 33 predicate places. [2022-11-18 21:11:46,503 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 0 transitions, 0 flow [2022-11-18 21:11:46,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 75.5) internal successors, (604), 8 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:46,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-11-18 21:11:46,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-11-18 21:11:46,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-11-18 21:11:46,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-11-18 21:11:46,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 21:11:46,508 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-18 21:11:46,513 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 21:11:46,513 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 21:11:46,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:11:46 BasicIcfg [2022-11-18 21:11:46,528 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 21:11:46,528 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 21:11:46,530 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 21:11:46,532 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 21:11:46,533 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:11:40" (3/4) ... [2022-11-18 21:11:46,537 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 21:11:46,545 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-18 21:11:46,546 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-18 21:11:46,546 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-18 21:11:46,553 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-18 21:11:46,553 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 21:11:46,554 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 21:11:46,556 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 21:11:46,606 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83326e66-9a32-47d3-9819-afb42759dff7/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 21:11:46,607 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 21:11:46,607 INFO L158 Benchmark]: Toolchain (without parser) took 7628.90ms. Allocated memory was 121.6MB in the beginning and 192.9MB in the end (delta: 71.3MB). Free memory was 85.0MB in the beginning and 97.3MB in the end (delta: -12.3MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. [2022-11-18 21:11:46,608 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 121.6MB. Free memory was 92.0MB in the beginning and 92.0MB in the end (delta: 27.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:11:46,608 INFO L158 Benchmark]: CACSL2BoogieTranslator took 678.54ms. Allocated memory is still 121.6MB. Free memory was 84.8MB in the beginning and 86.8MB in the end (delta: -2.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 21:11:46,608 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.94ms. Allocated memory is still 121.6MB. Free memory was 86.8MB in the beginning and 84.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 21:11:46,609 INFO L158 Benchmark]: Boogie Preprocessor took 54.63ms. Allocated memory is still 121.6MB. Free memory was 84.7MB in the beginning and 83.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 21:11:46,609 INFO L158 Benchmark]: RCFGBuilder took 695.36ms. Allocated memory is still 121.6MB. Free memory was 83.2MB in the beginning and 68.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-18 21:11:46,615 INFO L158 Benchmark]: TraceAbstraction took 6050.56ms. Allocated memory was 121.6MB in the beginning and 192.9MB in the end (delta: 71.3MB). Free memory was 67.9MB in the beginning and 100.5MB in the end (delta: -32.5MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. [2022-11-18 21:11:46,616 INFO L158 Benchmark]: Witness Printer took 78.15ms. Allocated memory is still 192.9MB. Free memory was 100.5MB in the beginning and 97.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 21:11:46,620 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 121.6MB. Free memory was 92.0MB in the beginning and 92.0MB in the end (delta: 27.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 678.54ms. Allocated memory is still 121.6MB. Free memory was 84.8MB in the beginning and 86.8MB in the end (delta: -2.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.94ms. Allocated memory is still 121.6MB. Free memory was 86.8MB in the beginning and 84.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.63ms. Allocated memory is still 121.6MB. Free memory was 84.7MB in the beginning and 83.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 695.36ms. Allocated memory is still 121.6MB. Free memory was 83.2MB in the beginning and 68.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6050.56ms. Allocated memory was 121.6MB in the beginning and 192.9MB in the end (delta: 71.3MB). Free memory was 67.9MB in the beginning and 100.5MB in the end (delta: -32.5MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. * Witness Printer took 78.15ms. Allocated memory is still 192.9MB. Free memory was 100.5MB in the beginning and 97.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 114 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 350 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 350 mSDsluCounter, 321 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 243 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 412 IncrementalHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 78 mSDtfsCounter, 412 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=646occurred in iteration=5, InterpolantAutomatonStates: 73, 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, 2.2s InterpolantComputationTime, 359 NumberOfCodeBlocks, 359 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 353 ConstructedInterpolants, 0 QuantifiedInterpolants, 1565 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 21:11:46,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83326e66-9a32-47d3-9819-afb42759dff7/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE