./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f 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_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f --- 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-e04fb08 [2022-11-16 11:52:10,575 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:52:10,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:52:10,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:52:10,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:52:10,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:52:10,623 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:52:10,631 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:52:10,633 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:52:10,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:52:10,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:52:10,639 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:52:10,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:52:10,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:52:10,649 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:52:10,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:52:10,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:52:10,655 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:52:10,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:52:10,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:52:10,665 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:52:10,666 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:52:10,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:52:10,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:52:10,673 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:52:10,679 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:52:10,679 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:52:10,680 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:52:10,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:52:10,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:52:10,684 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:52:10,684 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:52:10,686 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:52:10,688 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:52:10,689 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:52:10,691 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:52:10,691 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:52:10,692 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:52:10,692 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:52:10,693 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:52:10,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:52:10,695 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 11:52:10,733 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:52:10,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:52:10,739 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:52:10,740 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:52:10,741 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:52:10,741 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:52:10,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:52:10,742 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:52:10,742 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:52:10,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:52:10,743 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:52:10,744 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:52:10,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:52:10,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:52:10,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:52:10,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:52:10,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:52:10,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:52:10,745 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 11:52:10,745 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:52:10,746 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:52:10,746 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:52:10,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:52:10,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:52:10,746 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:52:10,747 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:52:10,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:52:10,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:52:10,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:52:10,749 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:52:10,749 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:52:10,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:52:10,750 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:52:10,750 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:52:10,750 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:52:10,750 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_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f [2022-11-16 11:52:11,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:52:11,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:52:11,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:52:11,157 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:52:11,158 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:52:11,160 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2022-11-16 11:52:11,219 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8/data/b7ef3ce4c/d25bbde5f3d848aaade5f648c1dbdf9f/FLAG1f390b396 [2022-11-16 11:52:11,950 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:52:11,952 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98e7095-42e5-479d-845c-5daae7c60d89/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2022-11-16 11:52:11,984 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8/data/b7ef3ce4c/d25bbde5f3d848aaade5f648c1dbdf9f/FLAG1f390b396 [2022-11-16 11:52:12,108 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8/data/b7ef3ce4c/d25bbde5f3d848aaade5f648c1dbdf9f [2022-11-16 11:52:12,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:52:12,113 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:52:12,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:52:12,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:52:12,118 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:52:12,119 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:52:12" (1/1) ... [2022-11-16 11:52:12,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bf8a53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:12, skipping insertion in model container [2022-11-16 11:52:12,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:52:12" (1/1) ... [2022-11-16 11:52:12,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:52:12,199 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:52:13,041 WARN L229 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_f98e7095-42e5-479d-845c-5daae7c60d89/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[76469,76482] [2022-11-16 11:52:13,094 WARN L229 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_f98e7095-42e5-479d-845c-5daae7c60d89/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79042,79055] [2022-11-16 11:52:13,099 WARN L229 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_f98e7095-42e5-479d-845c-5daae7c60d89/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79451,79464] [2022-11-16 11:52:13,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:52:13,157 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:52:13,197 WARN L229 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_f98e7095-42e5-479d-845c-5daae7c60d89/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[76469,76482] [2022-11-16 11:52:13,224 WARN L229 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_f98e7095-42e5-479d-845c-5daae7c60d89/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79042,79055] [2022-11-16 11:52:13,228 WARN L229 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_f98e7095-42e5-479d-845c-5daae7c60d89/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79451,79464] [2022-11-16 11:52:13,242 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:52:13,385 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:52:13,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:13 WrapperNode [2022-11-16 11:52:13,386 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:52:13,387 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:52:13,387 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:52:13,387 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:52:13,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:13" (1/1) ... [2022-11-16 11:52:13,461 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:13" (1/1) ... [2022-11-16 11:52:13,586 INFO L138 Inliner]: procedures = 489, calls = 127, calls flagged for inlining = 45, calls inlined = 117, statements flattened = 1805 [2022-11-16 11:52:13,589 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:52:13,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:52:13,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:52:13,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:52:13,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:13" (1/1) ... [2022-11-16 11:52:13,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:13" (1/1) ... [2022-11-16 11:52:13,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:13" (1/1) ... [2022-11-16 11:52:13,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:13" (1/1) ... [2022-11-16 11:52:13,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:13" (1/1) ... [2022-11-16 11:52:13,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:13" (1/1) ... [2022-11-16 11:52:13,718 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:13" (1/1) ... [2022-11-16 11:52:13,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:13" (1/1) ... [2022-11-16 11:52:13,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:52:13,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:52:13,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:52:13,774 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:52:13,775 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:13" (1/1) ... [2022-11-16 11:52:13,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:52:13,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:52:13,829 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:52:13,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:52:13,878 INFO L130 BoogieDeclarations]: Found specification of procedure Stealer [2022-11-16 11:52:13,878 INFO L138 BoogieDeclarations]: Found implementation of procedure Stealer [2022-11-16 11:52:13,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:52:13,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:52:13,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:52:13,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:52:13,879 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:52:13,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:52:13,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:52:13,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:52:13,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:52:13,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:52:13,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:52:13,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:52:13,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:52:13,883 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:52:14,328 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:52:14,331 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:52:16,997 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:52:17,425 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:52:17,426 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-16 11:52:17,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:52:17 BoogieIcfgContainer [2022-11-16 11:52:17,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:52:17,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:52:17,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:52:17,440 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:52:17,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:52:12" (1/3) ... [2022-11-16 11:52:17,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27cb529d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:52:17, skipping insertion in model container [2022-11-16 11:52:17,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:13" (2/3) ... [2022-11-16 11:52:17,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27cb529d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:52:17, skipping insertion in model container [2022-11-16 11:52:17,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:52:17" (3/3) ... [2022-11-16 11:52:17,446 INFO L112 eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-2.i [2022-11-16 11:52:17,461 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:52:17,474 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:52:17,475 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 90 error locations. [2022-11-16 11:52:17,475 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:52:17,722 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-16 11:52:17,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1796 places, 1841 transitions, 3690 flow [2022-11-16 11:52:19,457 INFO L130 PetriNetUnfolder]: 89/3411 cut-off events. [2022-11-16 11:52:19,458 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:52:19,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3417 conditions, 3411 events. 89/3411 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 16375 event pairs, 0 based on Foata normal form. 0/3153 useless extension candidates. Maximal degree in co-relation 1739. Up to 6 conditions per place. [2022-11-16 11:52:19,510 INFO L82 GeneralOperation]: Start removeDead. Operand has 1796 places, 1841 transitions, 3690 flow [2022-11-16 11:52:19,538 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1796 places, 1841 transitions, 3690 flow [2022-11-16 11:52:19,547 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:52:19,553 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;@4e673c61, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:52:19,553 INFO L358 AbstractCegarLoop]: Starting to check reachability of 97 error locations. [2022-11-16 11:52:19,559 INFO L130 PetriNetUnfolder]: 0/49 cut-off events. [2022-11-16 11:52:19,559 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:52:19,559 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:52:19,560 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] [2022-11-16 11:52:19,560 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-11-16 11:52:19,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:19,565 INFO L85 PathProgramCache]: Analyzing trace with hash 217550942, now seen corresponding path program 1 times [2022-11-16 11:52:19,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:19,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638516615] [2022-11-16 11:52:19,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:19,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:19,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:20,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:20,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:20,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638516615] [2022-11-16 11:52:20,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638516615] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:20,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:20,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:52:20,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180367673] [2022-11-16 11:52:20,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:20,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:52:20,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:20,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:52:20,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:52:20,374 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1760 out of 1841 [2022-11-16 11:52:20,391 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1796 places, 1841 transitions, 3690 flow. Second operand has 4 states, 4 states have (on average 1761.25) internal successors, (7045), 4 states have internal predecessors, (7045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:52:20,392 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:52:20,392 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1760 of 1841 [2022-11-16 11:52:20,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:52:24,633 INFO L130 PetriNetUnfolder]: 367/10409 cut-off events. [2022-11-16 11:52:24,634 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-16 11:52:24,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10914 conditions, 10409 events. 367/10409 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 88836 event pairs, 176 based on Foata normal form. 174/9930 useless extension candidates. Maximal degree in co-relation 9203. Up to 496 conditions per place. [2022-11-16 11:52:24,737 INFO L137 encePairwiseOnDemand]: 1821/1841 looper letters, 56 selfloop transitions, 2 changer transitions 0/1818 dead transitions. [2022-11-16 11:52:24,737 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1792 places, 1818 transitions, 3760 flow [2022-11-16 11:52:24,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:52:24,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 11:52:24,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7116 transitions. [2022-11-16 11:52:24,772 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9663226507332972 [2022-11-16 11:52:24,773 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 7116 transitions. [2022-11-16 11:52:24,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 7116 transitions. [2022-11-16 11:52:24,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:52:24,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 7116 transitions. [2022-11-16 11:52:24,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 1779.0) internal successors, (7116), 4 states have internal predecessors, (7116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:52:24,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1841.0) internal successors, (9205), 5 states have internal predecessors, (9205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:52:24,843 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1841.0) internal successors, (9205), 5 states have internal predecessors, (9205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:52:24,845 INFO L175 Difference]: Start difference. First operand has 1796 places, 1841 transitions, 3690 flow. Second operand 4 states and 7116 transitions. [2022-11-16 11:52:24,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1792 places, 1818 transitions, 3760 flow [2022-11-16 11:52:24,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1792 places, 1818 transitions, 3760 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:52:24,903 INFO L231 Difference]: Finished difference. Result has 1792 places, 1818 transitions, 3648 flow [2022-11-16 11:52:24,908 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1841, PETRI_DIFFERENCE_MINUEND_FLOW=3644, PETRI_DIFFERENCE_MINUEND_PLACES=1789, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1818, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1816, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=3648, PETRI_PLACES=1792, PETRI_TRANSITIONS=1818} [2022-11-16 11:52:24,913 INFO L288 CegarLoopForPetriNet]: 1796 programPoint places, -4 predicate places. [2022-11-16 11:52:24,914 INFO L495 AbstractCegarLoop]: Abstraction has has 1792 places, 1818 transitions, 3648 flow [2022-11-16 11:52:24,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1761.25) internal successors, (7045), 4 states have internal predecessors, (7045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:52:24,918 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:52:24,918 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:52:24,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:52:24,919 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-11-16 11:52:24,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:24,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1623531086, now seen corresponding path program 1 times [2022-11-16 11:52:24,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:24,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991567125] [2022-11-16 11:52:24,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:24,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:24,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:25,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:25,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:25,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991567125] [2022-11-16 11:52:25,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991567125] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:25,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:25,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:52:25,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197810412] [2022-11-16 11:52:25,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:25,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:52:25,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:25,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:52:25,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:52:25,084 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1718 out of 1841 [2022-11-16 11:52:25,092 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1792 places, 1818 transitions, 3648 flow. Second operand has 3 states, 3 states have (on average 1721.6666666666667) internal successors, (5165), 3 states have internal predecessors, (5165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:52:25,093 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:52:25,093 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1718 of 1841 [2022-11-16 11:52:25,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:52:32,177 INFO L130 PetriNetUnfolder]: 783/16010 cut-off events. [2022-11-16 11:52:32,178 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:52:32,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17260 conditions, 16010 events. 783/16010 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 145508 event pairs, 248 based on Foata normal form. 0/14935 useless extension candidates. Maximal degree in co-relation 17224. Up to 661 conditions per place. [2022-11-16 11:52:32,295 INFO L137 encePairwiseOnDemand]: 1817/1841 looper letters, 161 selfloop transitions, 12 changer transitions 11/1892 dead transitions. [2022-11-16 11:52:32,295 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1794 places, 1892 transitions, 4148 flow [2022-11-16 11:52:32,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:52:32,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:52:32,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5342 transitions. [2022-11-16 11:52:32,308 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9672279558211118 [2022-11-16 11:52:32,308 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5342 transitions. [2022-11-16 11:52:32,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5342 transitions. [2022-11-16 11:52:32,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:52:32,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5342 transitions. [2022-11-16 11:52:32,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1780.6666666666667) internal successors, (5342), 3 states have internal predecessors, (5342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:52:32,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1841.0) internal successors, (7364), 4 states have internal predecessors, (7364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:52:32,359 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1841.0) internal successors, (7364), 4 states have internal predecessors, (7364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:52:32,360 INFO L175 Difference]: Start difference. First operand has 1792 places, 1818 transitions, 3648 flow. Second operand 3 states and 5342 transitions. [2022-11-16 11:52:32,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1794 places, 1892 transitions, 4148 flow [2022-11-16 11:52:32,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1792 places, 1892 transitions, 4145 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:52:32,394 INFO L231 Difference]: Finished difference. Result has 1793 places, 1813 transitions, 3701 flow [2022-11-16 11:52:32,397 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1841, PETRI_DIFFERENCE_MINUEND_FLOW=3645, PETRI_DIFFERENCE_MINUEND_PLACES=1790, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1818, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1806, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3701, PETRI_PLACES=1793, PETRI_TRANSITIONS=1813} [2022-11-16 11:52:32,398 INFO L288 CegarLoopForPetriNet]: 1796 programPoint places, -3 predicate places. [2022-11-16 11:52:32,398 INFO L495 AbstractCegarLoop]: Abstraction has has 1793 places, 1813 transitions, 3701 flow [2022-11-16 11:52:32,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1721.6666666666667) internal successors, (5165), 3 states have internal predecessors, (5165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:52:32,400 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:52:32,401 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:52:32,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:52:32,401 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-11-16 11:52:32,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:32,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1057927376, now seen corresponding path program 1 times [2022-11-16 11:52:32,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:32,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196878500] [2022-11-16 11:52:32,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:32,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:32,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:32,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:32,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:32,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196878500] [2022-11-16 11:52:32,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196878500] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:32,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:32,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:52:32,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469222412] [2022-11-16 11:52:32,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:32,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:52:32,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:32,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:52:32,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:52:32,715 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1713 out of 1841 [2022-11-16 11:52:32,723 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1793 places, 1813 transitions, 3701 flow. Second operand has 4 states, 4 states have (on average 1715.25) internal successors, (6861), 4 states have internal predecessors, (6861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:52:32,723 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:52:32,723 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1713 of 1841 [2022-11-16 11:52:32,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:52:39,330 INFO L130 PetriNetUnfolder]: 783/15998 cut-off events. [2022-11-16 11:52:39,331 INFO L131 PetriNetUnfolder]: For 53/53 co-relation queries the response was YES. [2022-11-16 11:52:39,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17368 conditions, 15998 events. 783/15998 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 145050 event pairs, 248 based on Foata normal form. 0/14975 useless extension candidates. Maximal degree in co-relation 17332. Up to 665 conditions per place. [2022-11-16 11:52:39,439 INFO L137 encePairwiseOnDemand]: 1825/1841 looper letters, 167 selfloop transitions, 14 changer transitions 2/1886 dead transitions. [2022-11-16 11:52:39,439 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1788 places, 1886 transitions, 4213 flow [2022-11-16 11:52:39,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:52:39,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:52:39,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8750 transitions. [2022-11-16 11:52:39,456 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9505703422053232 [2022-11-16 11:52:39,456 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 8750 transitions. [2022-11-16 11:52:39,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 8750 transitions. [2022-11-16 11:52:39,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:52:39,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 8750 transitions. [2022-11-16 11:52:39,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 1750.0) internal successors, (8750), 5 states have internal predecessors, (8750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:52:39,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1841.0) internal successors, (11046), 6 states have internal predecessors, (11046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:52:39,499 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1841.0) internal successors, (11046), 6 states have internal predecessors, (11046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:52:39,499 INFO L175 Difference]: Start difference. First operand has 1793 places, 1813 transitions, 3701 flow. Second operand 5 states and 8750 transitions. [2022-11-16 11:52:39,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1788 places, 1886 transitions, 4213 flow [2022-11-16 11:52:39,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1787 places, 1886 transitions, 4201 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:52:39,536 INFO L231 Difference]: Finished difference. Result has 1790 places, 1815 transitions, 3745 flow [2022-11-16 11:52:39,539 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1841, PETRI_DIFFERENCE_MINUEND_FLOW=3689, PETRI_DIFFERENCE_MINUEND_PLACES=1783, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1813, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1799, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3745, PETRI_PLACES=1790, PETRI_TRANSITIONS=1815} [2022-11-16 11:52:39,542 INFO L288 CegarLoopForPetriNet]: 1796 programPoint places, -6 predicate places. [2022-11-16 11:52:39,543 INFO L495 AbstractCegarLoop]: Abstraction has has 1790 places, 1815 transitions, 3745 flow [2022-11-16 11:52:39,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1715.25) internal successors, (6861), 4 states have internal predecessors, (6861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:52:39,545 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:52:39,546 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:52:39,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:52:39,547 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-11-16 11:52:39,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:39,548 INFO L85 PathProgramCache]: Analyzing trace with hash -170976965, now seen corresponding path program 1 times [2022-11-16 11:52:39,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:39,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156057274] [2022-11-16 11:52:39,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:39,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:39,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:39,761 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 11:52:39,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:39,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156057274] [2022-11-16 11:52:39,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156057274] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:39,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:39,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:52:39,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010964285] [2022-11-16 11:52:39,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:39,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:52:39,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:39,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:52:39,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:52:39,772 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1713 out of 1841 [2022-11-16 11:52:39,779 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1790 places, 1815 transitions, 3745 flow. Second operand has 4 states, 4 states have (on average 1717.0) internal successors, (6868), 4 states have internal predecessors, (6868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:52:39,780 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:52:39,780 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1713 of 1841 [2022-11-16 11:52:39,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:52:45,810 INFO L130 PetriNetUnfolder]: 906/16484 cut-off events. [2022-11-16 11:52:45,810 INFO L131 PetriNetUnfolder]: For 115/115 co-relation queries the response was YES. [2022-11-16 11:52:45,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17987 conditions, 16484 events. 906/16484 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 148145 event pairs, 372 based on Foata normal form. 16/15451 useless extension candidates. Maximal degree in co-relation 17948. Up to 1254 conditions per place. [2022-11-16 11:52:45,944 INFO L137 encePairwiseOnDemand]: 1817/1841 looper letters, 92 selfloop transitions, 25 changer transitions 1/1821 dead transitions. [2022-11-16 11:52:45,945 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1790 places, 1821 transitions, 3985 flow [2022-11-16 11:52:45,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:52:45,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:52:45,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8681 transitions. [2022-11-16 11:52:45,969 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9430744160782184 [2022-11-16 11:52:45,969 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 8681 transitions. [2022-11-16 11:52:45,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 8681 transitions. [2022-11-16 11:52:45,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:52:45,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 8681 transitions. [2022-11-16 11:52:46,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 1736.2) internal successors, (8681), 5 states have internal predecessors, (8681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:52:46,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1841.0) internal successors, (11046), 6 states have internal predecessors, (11046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:52:46,029 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1841.0) internal successors, (11046), 6 states have internal predecessors, (11046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:52:46,034 INFO L175 Difference]: Start difference. First operand has 1790 places, 1815 transitions, 3745 flow. Second operand 5 states and 8681 transitions. [2022-11-16 11:52:46,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1790 places, 1821 transitions, 3985 flow [2022-11-16 11:52:46,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1788 places, 1821 transitions, 3961 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:52:46,310 INFO L231 Difference]: Finished difference. Result has 1789 places, 1816 transitions, 3798 flow [2022-11-16 11:52:46,312 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1841, PETRI_DIFFERENCE_MINUEND_FLOW=3705, PETRI_DIFFERENCE_MINUEND_PLACES=1784, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1811, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1786, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3798, PETRI_PLACES=1789, PETRI_TRANSITIONS=1816} [2022-11-16 11:52:46,314 INFO L288 CegarLoopForPetriNet]: 1796 programPoint places, -7 predicate places. [2022-11-16 11:52:46,314 INFO L495 AbstractCegarLoop]: Abstraction has has 1789 places, 1816 transitions, 3798 flow [2022-11-16 11:52:46,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1717.0) internal successors, (6868), 4 states have internal predecessors, (6868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:52:46,327 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:52:46,327 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:52:46,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:52:46,328 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-11-16 11:52:46,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:46,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1005314413, now seen corresponding path program 1 times [2022-11-16 11:52:46,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:46,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977585828] [2022-11-16 11:52:46,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:46,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:46,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:46,598 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:46,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:46,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977585828] [2022-11-16 11:52:46,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977585828] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:52:46,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426713716] [2022-11-16 11:52:46,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:46,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:52:46,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:52:46,607 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:52:46,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:52:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:46,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 11:52:46,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:52:46,962 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:46,962 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:52:46,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426713716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:46,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:52:46,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-16 11:52:46,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19852857] [2022-11-16 11:52:46,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:46,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:52:46,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:46,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:52:46,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:52:46,976 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1713 out of 1841 [2022-11-16 11:52:46,985 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1789 places, 1816 transitions, 3798 flow. Second operand has 6 states, 6 states have (on average 1715.8333333333333) internal successors, (10295), 6 states have internal predecessors, (10295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:52:46,986 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:52:46,986 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1713 of 1841 [2022-11-16 11:52:46,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:52:53,857 INFO L130 PetriNetUnfolder]: 904/16365 cut-off events. [2022-11-16 11:52:53,857 INFO L131 PetriNetUnfolder]: For 242/242 co-relation queries the response was YES. [2022-11-16 11:52:53,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17950 conditions, 16365 events. 904/16365 cut-off events. For 242/242 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 147018 event pairs, 253 based on Foata normal form. 1/15326 useless extension candidates. Maximal degree in co-relation 17911. Up to 661 conditions per place. [2022-11-16 11:52:53,997 INFO L137 encePairwiseOnDemand]: 1822/1841 looper letters, 160 selfloop transitions, 20 changer transitions 0/1883 dead transitions. [2022-11-16 11:52:53,998 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1794 places, 1883 transitions, 4290 flow [2022-11-16 11:52:53,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:52:53,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 11:52:54,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12172 transitions. [2022-11-16 11:52:54,029 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9445177310467914 [2022-11-16 11:52:54,029 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 12172 transitions. [2022-11-16 11:52:54,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 12172 transitions. [2022-11-16 11:52:54,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:52:54,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 12172 transitions. [2022-11-16 11:52:54,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 1738.857142857143) internal successors, (12172), 7 states have internal predecessors, (12172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:52:54,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1841.0) internal successors, (14728), 8 states have internal predecessors, (14728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:52:54,103 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1841.0) internal successors, (14728), 8 states have internal predecessors, (14728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:52:54,104 INFO L175 Difference]: Start difference. First operand has 1789 places, 1816 transitions, 3798 flow. Second operand 7 states and 12172 transitions. [2022-11-16 11:52:54,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1794 places, 1883 transitions, 4290 flow [2022-11-16 11:52:54,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1790 places, 1883 transitions, 4259 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:52:54,155 INFO L231 Difference]: Finished difference. Result has 1790 places, 1815 transitions, 3803 flow [2022-11-16 11:52:54,158 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1841, PETRI_DIFFERENCE_MINUEND_FLOW=3763, PETRI_DIFFERENCE_MINUEND_PLACES=1784, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1815, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1795, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3803, PETRI_PLACES=1790, PETRI_TRANSITIONS=1815} [2022-11-16 11:52:54,162 INFO L288 CegarLoopForPetriNet]: 1796 programPoint places, -6 predicate places. [2022-11-16 11:52:54,162 INFO L495 AbstractCegarLoop]: Abstraction has has 1790 places, 1815 transitions, 3803 flow [2022-11-16 11:52:54,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1715.8333333333333) internal successors, (10295), 6 states have internal predecessors, (10295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:52:54,171 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:52:54,171 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:52:54,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:52:54,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:52:54,379 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-11-16 11:52:54,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:54,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1573867015, now seen corresponding path program 1 times [2022-11-16 11:52:54,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:54,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662715226] [2022-11-16 11:52:54,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:54,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:54,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:54,884 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:54,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:54,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662715226] [2022-11-16 11:52:54,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662715226] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:52:54,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386080625] [2022-11-16 11:52:54,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:54,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:52:54,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:52:54,888 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:52:54,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 11:52:55,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:55,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:52:55,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:52:55,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:55,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:52:55,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:55,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386080625] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:52:55,235 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:52:55,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-16 11:52:55,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219267684] [2022-11-16 11:52:55,236 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:52:55,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:52:55,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:55,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:52:55,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:52:55,254 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1713 out of 1841 [2022-11-16 11:52:55,272 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1790 places, 1815 transitions, 3803 flow. Second operand has 10 states, 10 states have (on average 1716.4) internal successors, (17164), 10 states have internal predecessors, (17164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:52:55,272 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:52:55,272 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1713 of 1841 [2022-11-16 11:52:55,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:53:02,104 INFO L130 PetriNetUnfolder]: 846/16974 cut-off events. [2022-11-16 11:53:02,104 INFO L131 PetriNetUnfolder]: For 247/247 co-relation queries the response was YES. [2022-11-16 11:53:02,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18522 conditions, 16974 events. 846/16974 cut-off events. For 247/247 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 153772 event pairs, 468 based on Foata normal form. 2/15869 useless extension candidates. Maximal degree in co-relation 18483. Up to 583 conditions per place. [2022-11-16 11:53:02,208 INFO L137 encePairwiseOnDemand]: 1818/1841 looper letters, 163 selfloop transitions, 29 changer transitions 0/1895 dead transitions. [2022-11-16 11:53:02,208 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1799 places, 1895 transitions, 4363 flow [2022-11-16 11:53:02,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:53:02,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-16 11:53:02,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 17324 transitions. [2022-11-16 11:53:02,253 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.941010320478001 [2022-11-16 11:53:02,253 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 17324 transitions. [2022-11-16 11:53:02,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 17324 transitions. [2022-11-16 11:53:02,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:53:02,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 17324 transitions. [2022-11-16 11:53:02,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 1732.4) internal successors, (17324), 10 states have internal predecessors, (17324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:53:02,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 1841.0) internal successors, (20251), 11 states have internal predecessors, (20251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:53:02,319 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 1841.0) internal successors, (20251), 11 states have internal predecessors, (20251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:53:02,319 INFO L175 Difference]: Start difference. First operand has 1790 places, 1815 transitions, 3803 flow. Second operand 10 states and 17324 transitions. [2022-11-16 11:53:02,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1799 places, 1895 transitions, 4363 flow [2022-11-16 11:53:02,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1794 places, 1895 transitions, 4325 flow, removed 4 selfloop flow, removed 5 redundant places. [2022-11-16 11:53:02,355 INFO L231 Difference]: Finished difference. Result has 1798 places, 1819 transitions, 3892 flow [2022-11-16 11:53:02,358 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1841, PETRI_DIFFERENCE_MINUEND_FLOW=3769, PETRI_DIFFERENCE_MINUEND_PLACES=1785, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1815, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1787, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3892, PETRI_PLACES=1798, PETRI_TRANSITIONS=1819} [2022-11-16 11:53:02,360 INFO L288 CegarLoopForPetriNet]: 1796 programPoint places, 2 predicate places. [2022-11-16 11:53:02,360 INFO L495 AbstractCegarLoop]: Abstraction has has 1798 places, 1819 transitions, 3892 flow [2022-11-16 11:53:02,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1716.4) internal successors, (17164), 10 states have internal predecessors, (17164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:53:02,365 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:53:02,366 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:53:02,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:53:02,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:53:02,573 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-11-16 11:53:02,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:02,573 INFO L85 PathProgramCache]: Analyzing trace with hash -448730161, now seen corresponding path program 2 times [2022-11-16 11:53:02,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:02,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759159032] [2022-11-16 11:53:02,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:02,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:02,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:53:02,764 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-11-16 11:53:02,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:53:02,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759159032] [2022-11-16 11:53:02,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759159032] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:53:02,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:53:02,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:53:02,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28755908] [2022-11-16 11:53:02,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:53:02,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:53:02,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:53:02,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:53:02,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:53:02,774 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1713 out of 1841 [2022-11-16 11:53:02,783 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1798 places, 1819 transitions, 3892 flow. Second operand has 4 states, 4 states have (on average 1717.0) internal successors, (6868), 4 states have internal predecessors, (6868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:53:02,783 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:53:02,783 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1713 of 1841 [2022-11-16 11:53:02,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:53:08,968 INFO L130 PetriNetUnfolder]: 783/15982 cut-off events. [2022-11-16 11:53:08,968 INFO L131 PetriNetUnfolder]: For 466/466 co-relation queries the response was YES. [2022-11-16 11:53:09,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17601 conditions, 15982 events. 783/15982 cut-off events. For 466/466 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 144494 event pairs, 244 based on Foata normal form. 0/14967 useless extension candidates. Maximal degree in co-relation 17560. Up to 636 conditions per place. [2022-11-16 11:53:09,093 INFO L137 encePairwiseOnDemand]: 1825/1841 looper letters, 170 selfloop transitions, 14 changer transitions 0/1887 dead transitions. [2022-11-16 11:53:09,093 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1800 places, 1887 transitions, 4396 flow [2022-11-16 11:53:09,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:53:09,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:53:09,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8748 transitions. [2022-11-16 11:53:09,109 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9503530689842477 [2022-11-16 11:53:09,109 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 8748 transitions. [2022-11-16 11:53:09,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 8748 transitions. [2022-11-16 11:53:09,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:53:09,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 8748 transitions. [2022-11-16 11:53:09,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 1749.6) internal successors, (8748), 5 states have internal predecessors, (8748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:53:09,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1841.0) internal successors, (11046), 6 states have internal predecessors, (11046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:53:09,146 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1841.0) internal successors, (11046), 6 states have internal predecessors, (11046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:53:09,147 INFO L175 Difference]: Start difference. First operand has 1798 places, 1819 transitions, 3892 flow. Second operand 5 states and 8748 transitions. [2022-11-16 11:53:09,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1800 places, 1887 transitions, 4396 flow [2022-11-16 11:53:09,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1797 places, 1887 transitions, 4364 flow, removed 8 selfloop flow, removed 3 redundant places. [2022-11-16 11:53:09,184 INFO L231 Difference]: Finished difference. Result has 1797 places, 1817 transitions, 3884 flow [2022-11-16 11:53:09,187 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1841, PETRI_DIFFERENCE_MINUEND_FLOW=3856, PETRI_DIFFERENCE_MINUEND_PLACES=1793, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1817, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1803, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3884, PETRI_PLACES=1797, PETRI_TRANSITIONS=1817} [2022-11-16 11:53:09,187 INFO L288 CegarLoopForPetriNet]: 1796 programPoint places, 1 predicate places. [2022-11-16 11:53:09,188 INFO L495 AbstractCegarLoop]: Abstraction has has 1797 places, 1817 transitions, 3884 flow [2022-11-16 11:53:09,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1717.0) internal successors, (6868), 4 states have internal predecessors, (6868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:53:09,190 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:53:09,191 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:53:09,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:53:09,191 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-11-16 11:53:09,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:09,192 INFO L85 PathProgramCache]: Analyzing trace with hash 2097772935, now seen corresponding path program 1 times [2022-11-16 11:53:09,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:09,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523637859] [2022-11-16 11:53:09,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:09,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:09,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:53:09,588 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 11:53:09,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:53:09,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523637859] [2022-11-16 11:53:09,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523637859] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:53:09,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450056970] [2022-11-16 11:53:09,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:09,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:53:09,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:53:09,591 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:53:09,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 11:53:09,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:53:09,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 11:53:09,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:53:09,943 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 11:53:09,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:53:10,282 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 11:53:10,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450056970] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:53:10,285 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:53:10,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2022-11-16 11:53:10,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832438901] [2022-11-16 11:53:10,286 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:53:10,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:53:10,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:53:10,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:53:10,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:53:10,304 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1713 out of 1841 [2022-11-16 11:53:10,341 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1797 places, 1817 transitions, 3884 flow. Second operand has 11 states, 11 states have (on average 1716.6363636363637) internal successors, (18883), 11 states have internal predecessors, (18883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:53:10,341 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:53:10,342 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1713 of 1841 [2022-11-16 11:53:10,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:53:17,512 INFO L130 PetriNetUnfolder]: 918/17313 cut-off events. [2022-11-16 11:53:17,512 INFO L131 PetriNetUnfolder]: For 491/491 co-relation queries the response was YES. [2022-11-16 11:53:17,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19056 conditions, 17313 events. 918/17313 cut-off events. For 491/491 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 155692 event pairs, 412 based on Foata normal form. 1/16195 useless extension candidates. Maximal degree in co-relation 19014. Up to 637 conditions per place. [2022-11-16 11:53:17,664 INFO L137 encePairwiseOnDemand]: 1818/1841 looper letters, 167 selfloop transitions, 32 changer transitions 0/1900 dead transitions. [2022-11-16 11:53:17,665 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1809 places, 1900 transitions, 4472 flow [2022-11-16 11:53:17,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:53:17,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 11:53:17,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 22469 transitions. [2022-11-16 11:53:17,690 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.938829231604897 [2022-11-16 11:53:17,690 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 22469 transitions. [2022-11-16 11:53:17,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 22469 transitions. [2022-11-16 11:53:17,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:53:17,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 22469 transitions. [2022-11-16 11:53:17,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 1728.3846153846155) internal successors, (22469), 13 states have internal predecessors, (22469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:53:17,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 1841.0) internal successors, (25774), 14 states have internal predecessors, (25774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:53:17,772 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 1841.0) internal successors, (25774), 14 states have internal predecessors, (25774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:53:17,772 INFO L175 Difference]: Start difference. First operand has 1797 places, 1817 transitions, 3884 flow. Second operand 13 states and 22469 transitions. [2022-11-16 11:53:17,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1809 places, 1900 transitions, 4472 flow [2022-11-16 11:53:17,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1806 places, 1900 transitions, 4448 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-11-16 11:53:17,805 INFO L231 Difference]: Finished difference. Result has 1810 places, 1821 transitions, 3989 flow [2022-11-16 11:53:17,808 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1841, PETRI_DIFFERENCE_MINUEND_FLOW=3860, PETRI_DIFFERENCE_MINUEND_PLACES=1794, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1817, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1786, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3989, PETRI_PLACES=1810, PETRI_TRANSITIONS=1821} [2022-11-16 11:53:17,810 INFO L288 CegarLoopForPetriNet]: 1796 programPoint places, 14 predicate places. [2022-11-16 11:53:17,811 INFO L495 AbstractCegarLoop]: Abstraction has has 1810 places, 1821 transitions, 3989 flow [2022-11-16 11:53:17,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1716.6363636363637) internal successors, (18883), 11 states have internal predecessors, (18883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:53:17,816 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:53:17,816 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:53:17,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:53:18,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f98e7095-42e5-479d-845c-5daae7c60d89/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-16 11:53:18,023 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-11-16 11:53:18,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:18,023 INFO L85 PathProgramCache]: Analyzing trace with hash 492953266, now seen corresponding path program 2 times [2022-11-16 11:53:18,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:18,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408128640] [2022-11-16 11:53:18,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:18,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:18,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:53:18,098 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:53:18,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:53:18,226 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:53:18,226 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:53:18,227 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (96 of 97 remaining) [2022-11-16 11:53:18,229 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (95 of 97 remaining) [2022-11-16 11:53:18,229 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (94 of 97 remaining) [2022-11-16 11:53:18,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (93 of 97 remaining) [2022-11-16 11:53:18,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (92 of 97 remaining) [2022-11-16 11:53:18,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (91 of 97 remaining) [2022-11-16 11:53:18,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (90 of 97 remaining) [2022-11-16 11:53:18,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (89 of 97 remaining) [2022-11-16 11:53:18,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (88 of 97 remaining) [2022-11-16 11:53:18,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (87 of 97 remaining) [2022-11-16 11:53:18,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (86 of 97 remaining) [2022-11-16 11:53:18,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (85 of 97 remaining) [2022-11-16 11:53:18,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (84 of 97 remaining) [2022-11-16 11:53:18,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (83 of 97 remaining) [2022-11-16 11:53:18,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (82 of 97 remaining) [2022-11-16 11:53:18,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW (81 of 97 remaining) [2022-11-16 11:53:18,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr81ASSERT_VIOLATIONINTEGER_OVERFLOW (80 of 97 remaining) [2022-11-16 11:53:18,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr82ASSERT_VIOLATIONINTEGER_OVERFLOW (79 of 97 remaining) [2022-11-16 11:53:18,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr83ASSERT_VIOLATIONINTEGER_OVERFLOW (78 of 97 remaining) [2022-11-16 11:53:18,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr68ASSERT_VIOLATIONINTEGER_OVERFLOW (77 of 97 remaining) [2022-11-16 11:53:18,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr69ASSERT_VIOLATIONINTEGER_OVERFLOW (76 of 97 remaining) [2022-11-16 11:53:18,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (75 of 97 remaining) [2022-11-16 11:53:18,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 97 remaining) [2022-11-16 11:53:18,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 97 remaining) [2022-11-16 11:53:18,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 97 remaining) [2022-11-16 11:53:18,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr70ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 97 remaining) [2022-11-16 11:53:18,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr71ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 97 remaining) [2022-11-16 11:53:18,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 97 remaining) [2022-11-16 11:53:18,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr78ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 97 remaining) [2022-11-16 11:53:18,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 97 remaining) [2022-11-16 11:53:18,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr79ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 97 remaining) [2022-11-16 11:53:18,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 97 remaining) [2022-11-16 11:53:18,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 97 remaining) [2022-11-16 11:53:18,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr76ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 97 remaining) [2022-11-16 11:53:18,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr77ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 97 remaining) [2022-11-16 11:53:18,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 97 remaining) [2022-11-16 11:53:18,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 97 remaining) [2022-11-16 11:53:18,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr72ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 97 remaining) [2022-11-16 11:53:18,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr73ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 97 remaining) [2022-11-16 11:53:18,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 97 remaining) [2022-11-16 11:53:18,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 97 remaining) [2022-11-16 11:53:18,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 97 remaining) [2022-11-16 11:53:18,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 97 remaining) [2022-11-16 11:53:18,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 97 remaining) [2022-11-16 11:53:18,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 97 remaining) [2022-11-16 11:53:18,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 97 remaining) [2022-11-16 11:53:18,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 97 remaining) [2022-11-16 11:53:18,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 97 remaining) [2022-11-16 11:53:18,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 97 remaining) [2022-11-16 11:53:18,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr74ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 97 remaining) [2022-11-16 11:53:18,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr75ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 97 remaining) [2022-11-16 11:53:18,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 97 remaining) [2022-11-16 11:53:18,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 97 remaining) [2022-11-16 11:53:18,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 97 remaining) [2022-11-16 11:53:18,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 97 remaining) [2022-11-16 11:53:18,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 97 remaining) [2022-11-16 11:53:18,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 97 remaining) [2022-11-16 11:53:18,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 97 remaining) [2022-11-16 11:53:18,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 97 remaining) [2022-11-16 11:53:18,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 97 remaining) [2022-11-16 11:53:18,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 97 remaining) [2022-11-16 11:53:18,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 97 remaining) [2022-11-16 11:53:18,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 97 remaining) [2022-11-16 11:53:18,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 97 remaining) [2022-11-16 11:53:18,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 97 remaining) [2022-11-16 11:53:18,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 97 remaining) [2022-11-16 11:53:18,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 97 remaining) [2022-11-16 11:53:18,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 97 remaining) [2022-11-16 11:53:18,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 97 remaining) [2022-11-16 11:53:18,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 97 remaining) [2022-11-16 11:53:18,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 97 remaining) [2022-11-16 11:53:18,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 97 remaining) [2022-11-16 11:53:18,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 97 remaining) [2022-11-16 11:53:18,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr66ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 97 remaining) [2022-11-16 11:53:18,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr67ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 97 remaining) [2022-11-16 11:53:18,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr64ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 97 remaining) [2022-11-16 11:53:18,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 97 remaining) [2022-11-16 11:53:18,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr65ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 97 remaining) [2022-11-16 11:53:18,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 97 remaining) [2022-11-16 11:53:18,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 97 remaining) [2022-11-16 11:53:18,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 97 remaining) [2022-11-16 11:53:18,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 97 remaining) [2022-11-16 11:53:18,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 97 remaining) [2022-11-16 11:53:18,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 97 remaining) [2022-11-16 11:53:18,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 97 remaining) [2022-11-16 11:53:18,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 97 remaining) [2022-11-16 11:53:18,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 97 remaining) [2022-11-16 11:53:18,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 97 remaining) [2022-11-16 11:53:18,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 97 remaining) [2022-11-16 11:53:18,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr62ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 97 remaining) [2022-11-16 11:53:18,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 97 remaining) [2022-11-16 11:53:18,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 97 remaining) [2022-11-16 11:53:18,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 97 remaining) [2022-11-16 11:53:18,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 97 remaining) [2022-11-16 11:53:18,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 97 remaining) [2022-11-16 11:53:18,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 97 remaining) [2022-11-16 11:53:18,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location StealerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 97 remaining) [2022-11-16 11:53:18,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:53:18,249 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1] [2022-11-16 11:53:18,252 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-16 11:53:18,252 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-16 11:53:18,413 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 11:53:18,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1955 places, 2003 transitions, 4024 flow [2022-11-16 11:53:20,409 INFO L130 PetriNetUnfolder]: 140/5203 cut-off events. [2022-11-16 11:53:20,409 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-16 11:53:20,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5217 conditions, 5203 events. 140/5203 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 30997 event pairs, 0 based on Foata normal form. 0/4803 useless extension candidates. Maximal degree in co-relation 3413. Up to 9 conditions per place. [2022-11-16 11:53:20,480 INFO L82 GeneralOperation]: Start removeDead. Operand has 1955 places, 2003 transitions, 4024 flow [2022-11-16 11:53:20,518 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1955 places, 2003 transitions, 4024 flow [2022-11-16 11:53:20,519 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:53:20,520 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;@4e673c61, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:53:20,520 INFO L358 AbstractCegarLoop]: Starting to check reachability of 103 error locations. [2022-11-16 11:53:20,525 INFO L130 PetriNetUnfolder]: 0/49 cut-off events. [2022-11-16 11:53:20,525 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:53:20,525 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:53:20,526 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] [2022-11-16 11:53:20,526 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [StealerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, StealerErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 100 more)] === [2022-11-16 11:53:20,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:20,526 INFO L85 PathProgramCache]: Analyzing trace with hash -859839554, now seen corresponding path program 1 times [2022-11-16 11:53:20,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:20,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522765590] [2022-11-16 11:53:20,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:20,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:20,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:53:20,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:53:20,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:53:20,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522765590] [2022-11-16 11:53:20,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522765590] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:53:20,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:53:20,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:53:20,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296943613] [2022-11-16 11:53:20,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:53:20,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:53:20,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:53:20,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:53:20,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:53:20,688 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1915 out of 2003 [2022-11-16 11:53:20,698 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1955 places, 2003 transitions, 4024 flow. Second operand has 4 states, 4 states have (on average 1916.25) internal successors, (7665), 4 states have internal predecessors, (7665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:53:20,698 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:53:20,698 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1915 of 2003 [2022-11-16 11:53:20,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand