/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/unroll-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 12:03:48,522 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 12:03:48,524 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 12:03:48,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 12:03:48,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 12:03:48,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 12:03:48,552 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 12:03:48,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 12:03:48,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 12:03:48,561 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 12:03:48,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 12:03:48,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 12:03:48,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 12:03:48,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 12:03:48,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 12:03:48,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 12:03:48,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 12:03:48,567 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 12:03:48,569 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 12:03:48,570 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 12:03:48,576 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 12:03:48,580 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 12:03:48,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 12:03:48,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 12:03:48,596 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 12:03:48,596 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 12:03:48,596 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 12:03:48,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 12:03:48,598 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 12:03:48,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 12:03:48,598 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 12:03:48,599 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 12:03:48,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 12:03:48,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 12:03:48,600 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 12:03:48,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 12:03:48,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 12:03:48,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 12:03:48,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 12:03:48,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 12:03:48,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 12:03:48,606 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-09-16 12:03:48,644 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 12:03:48,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 12:03:48,646 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 12:03:48,646 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 12:03:48,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 12:03:48,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 12:03:48,646 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 12:03:48,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 12:03:48,647 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 12:03:48,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 12:03:48,650 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 12:03:48,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 12:03:48,650 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 12:03:48,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 12:03:48,650 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 12:03:48,650 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 12:03:48,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 12:03:48,650 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 12:03:48,651 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 12:03:48,651 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 12:03:48,651 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 12:03:48,651 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 12:03:48,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 12:03:48,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 12:03:48,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 12:03:48,652 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 12:03:48,652 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 12:03:48,652 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 12:03:48,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 12:03:48,652 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 12:03:48,654 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 12:03:48,654 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 12:03:48,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 12:03:48,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 12:03:48,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 12:03:48,918 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 12:03:48,918 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 12:03:48,919 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/unroll-3.wvr.c [2022-09-16 12:03:48,983 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dddfda936/d28ae27a3eb94766afe98cccf3d47a03/FLAGc5152baf8 [2022-09-16 12:03:49,427 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 12:03:49,428 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-3.wvr.c [2022-09-16 12:03:49,468 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dddfda936/d28ae27a3eb94766afe98cccf3d47a03/FLAGc5152baf8 [2022-09-16 12:03:49,792 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dddfda936/d28ae27a3eb94766afe98cccf3d47a03 [2022-09-16 12:03:49,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 12:03:49,795 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 12:03:49,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 12:03:49,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 12:03:49,805 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 12:03:49,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 12:03:49" (1/1) ... [2022-09-16 12:03:49,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46743c1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:03:49, skipping insertion in model container [2022-09-16 12:03:49,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 12:03:49" (1/1) ... [2022-09-16 12:03:49,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 12:03:49,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 12:03:50,006 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-3.wvr.c[2500,2513] [2022-09-16 12:03:50,010 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 12:03:50,019 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 12:03:50,036 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-3.wvr.c[2500,2513] [2022-09-16 12:03:50,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 12:03:50,049 INFO L208 MainTranslator]: Completed translation [2022-09-16 12:03:50,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:03:50 WrapperNode [2022-09-16 12:03:50,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 12:03:50,050 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 12:03:50,050 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 12:03:50,050 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 12:03:50,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:03:50" (1/1) ... [2022-09-16 12:03:50,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:03:50" (1/1) ... [2022-09-16 12:03:50,096 INFO L138 Inliner]: procedures = 24, calls = 34, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 146 [2022-09-16 12:03:50,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 12:03:50,098 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 12:03:50,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 12:03:50,098 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 12:03:50,105 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:03:50" (1/1) ... [2022-09-16 12:03:50,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:03:50" (1/1) ... [2022-09-16 12:03:50,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:03:50" (1/1) ... [2022-09-16 12:03:50,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:03:50" (1/1) ... [2022-09-16 12:03:50,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:03:50" (1/1) ... [2022-09-16 12:03:50,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:03:50" (1/1) ... [2022-09-16 12:03:50,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:03:50" (1/1) ... [2022-09-16 12:03:50,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 12:03:50,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 12:03:50,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 12:03:50,133 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 12:03:50,134 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:03:50" (1/1) ... [2022-09-16 12:03:50,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 12:03:50,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 12:03:50,160 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-16 12:03:50,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-16 12:03:50,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 12:03:50,208 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-16 12:03:50,208 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-16 12:03:50,208 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-16 12:03:50,209 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-16 12:03:50,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 12:03:50,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 12:03:50,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 12:03:50,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-09-16 12:03:50,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 12:03:50,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 12:03:50,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 12:03:50,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 12:03:50,211 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 12:03:50,356 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 12:03:50,357 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 12:03:50,721 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 12:03:50,729 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 12:03:50,730 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-09-16 12:03:50,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 12:03:50 BoogieIcfgContainer [2022-09-16 12:03:50,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 12:03:50,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 12:03:50,733 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 12:03:50,741 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 12:03:50,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 12:03:49" (1/3) ... [2022-09-16 12:03:50,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@388afc69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 12:03:50, skipping insertion in model container [2022-09-16 12:03:50,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 12:03:50" (2/3) ... [2022-09-16 12:03:50,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@388afc69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 12:03:50, skipping insertion in model container [2022-09-16 12:03:50,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 12:03:50" (3/3) ... [2022-09-16 12:03:50,743 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-3.wvr.c [2022-09-16 12:03:50,759 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 12:03:50,759 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-09-16 12:03:50,759 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 12:03:50,837 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-16 12:03:50,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 180 places, 188 transitions, 392 flow [2022-09-16 12:03:50,971 INFO L130 PetriNetUnfolder]: 15/186 cut-off events. [2022-09-16 12:03:50,972 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-09-16 12:03:50,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 186 events. 15/186 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 180 event pairs, 0 based on Foata normal form. 0/169 useless extension candidates. Maximal degree in co-relation 114. Up to 2 conditions per place. [2022-09-16 12:03:50,977 INFO L82 GeneralOperation]: Start removeDead. Operand has 180 places, 188 transitions, 392 flow [2022-09-16 12:03:50,982 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 68 transitions, 136 flow [2022-09-16 12:03:50,999 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 12:03:51,006 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@6490e3c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 12:03:51,006 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-09-16 12:03:51,022 INFO L130 PetriNetUnfolder]: 3/63 cut-off events. [2022-09-16 12:03:51,023 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 12:03:51,023 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 12:03:51,023 INFO L208 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] [2022-09-16 12:03:51,024 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-09-16 12:03:51,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:03:51,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1757189029, now seen corresponding path program 1 times [2022-09-16 12:03:51,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:03:51,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653348528] [2022-09-16 12:03:51,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:03:51,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:03:51,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:03:51,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:03:51,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:03:51,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653348528] [2022-09-16 12:03:51,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653348528] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 12:03:51,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 12:03:51,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 12:03:51,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234211606] [2022-09-16 12:03:51,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 12:03:51,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 12:03:51,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:03:51,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 12:03:51,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 12:03:51,354 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 188 [2022-09-16 12:03:51,361 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 68 transitions, 136 flow. Second operand has 4 states, 4 states have (on average 160.5) internal successors, (642), 4 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 12:03:51,361 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 12:03:51,362 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 188 [2022-09-16 12:03:51,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 12:03:51,442 INFO L130 PetriNetUnfolder]: 1/74 cut-off events. [2022-09-16 12:03:51,443 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 12:03:51,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 74 events. 1/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 9 event pairs, 0 based on Foata normal form. 3/72 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2022-09-16 12:03:51,444 INFO L137 encePairwiseOnDemand]: 179/188 looper letters, 14 selfloop transitions, 4 changer transitions 3/72 dead transitions. [2022-09-16 12:03:51,445 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 72 transitions, 180 flow [2022-09-16 12:03:51,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 12:03:51,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 12:03:51,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 818 transitions. [2022-09-16 12:03:51,464 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8702127659574468 [2022-09-16 12:03:51,465 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 818 transitions. [2022-09-16 12:03:51,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 818 transitions. [2022-09-16 12:03:51,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 12:03:51,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 818 transitions. [2022-09-16 12:03:51,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 163.6) internal successors, (818), 5 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 12:03:51,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 188.0) internal successors, (1128), 6 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 12:03:51,487 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 188.0) internal successors, (1128), 6 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 12:03:51,488 INFO L175 Difference]: Start difference. First operand has 65 places, 68 transitions, 136 flow. Second operand 5 states and 818 transitions. [2022-09-16 12:03:51,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 72 transitions, 180 flow [2022-09-16 12:03:51,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 72 transitions, 180 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-09-16 12:03:51,495 INFO L231 Difference]: Finished difference. Result has 72 places, 65 transitions, 154 flow [2022-09-16 12:03:51,496 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=154, PETRI_PLACES=72, PETRI_TRANSITIONS=65} [2022-09-16 12:03:51,499 INFO L287 CegarLoopForPetriNet]: 65 programPoint places, 7 predicate places. [2022-09-16 12:03:51,499 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 65 transitions, 154 flow [2022-09-16 12:03:51,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 160.5) internal successors, (642), 4 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 12:03:51,500 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 12:03:51,500 INFO L208 CegarLoopForPetriNet]: trace histogram [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] [2022-09-16 12:03:51,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 12:03:51,501 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-09-16 12:03:51,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:03:51,501 INFO L85 PathProgramCache]: Analyzing trace with hash -40520096, now seen corresponding path program 1 times [2022-09-16 12:03:51,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:03:51,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259257280] [2022-09-16 12:03:51,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:03:51,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:03:51,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:03:51,625 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:03:51,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:03:51,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259257280] [2022-09-16 12:03:51,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259257280] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 12:03:51,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120283987] [2022-09-16 12:03:51,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:03:51,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:03:51,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 12:03:51,632 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 12:03:51,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-09-16 12:03:51,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:03:51,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 12:03:51,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 12:03:51,847 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:03:51,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 12:03:51,931 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:03:51,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120283987] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 12:03:51,932 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 12:03:51,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-09-16 12:03:51,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325117104] [2022-09-16 12:03:51,933 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 12:03:51,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-09-16 12:03:51,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:03:51,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-09-16 12:03:51,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-09-16 12:03:51,941 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 188 [2022-09-16 12:03:51,944 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 65 transitions, 154 flow. Second operand has 12 states, 12 states have (on average 161.66666666666666) internal successors, (1940), 12 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 12:03:51,944 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 12:03:51,944 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 188 [2022-09-16 12:03:51,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 12:03:52,119 INFO L130 PetriNetUnfolder]: 1/100 cut-off events. [2022-09-16 12:03:52,120 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-09-16 12:03:52,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 100 events. 1/100 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 6 event pairs, 0 based on Foata normal form. 3/103 useless extension candidates. Maximal degree in co-relation 88. Up to 11 conditions per place. [2022-09-16 12:03:52,121 INFO L137 encePairwiseOnDemand]: 181/188 looper letters, 23 selfloop transitions, 18 changer transitions 0/92 dead transitions. [2022-09-16 12:03:52,121 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 92 transitions, 312 flow [2022-09-16 12:03:52,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 12:03:52,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-09-16 12:03:52,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2906 transitions. [2022-09-16 12:03:52,129 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8587470449172577 [2022-09-16 12:03:52,129 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2906 transitions. [2022-09-16 12:03:52,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2906 transitions. [2022-09-16 12:03:52,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 12:03:52,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2906 transitions. [2022-09-16 12:03:52,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 161.44444444444446) internal successors, (2906), 18 states have internal predecessors, (2906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 12:03:52,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 188.0) internal successors, (3572), 19 states have internal predecessors, (3572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 12:03:52,146 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 188.0) internal successors, (3572), 19 states have internal predecessors, (3572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 12:03:52,146 INFO L175 Difference]: Start difference. First operand has 72 places, 65 transitions, 154 flow. Second operand 18 states and 2906 transitions. [2022-09-16 12:03:52,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 92 transitions, 312 flow [2022-09-16 12:03:52,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 92 transitions, 310 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 12:03:52,150 INFO L231 Difference]: Finished difference. Result has 89 places, 77 transitions, 258 flow [2022-09-16 12:03:52,151 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=258, PETRI_PLACES=89, PETRI_TRANSITIONS=77} [2022-09-16 12:03:52,151 INFO L287 CegarLoopForPetriNet]: 65 programPoint places, 24 predicate places. [2022-09-16 12:03:52,151 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 77 transitions, 258 flow [2022-09-16 12:03:52,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 161.66666666666666) internal successors, (1940), 12 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 12:03:52,153 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 12:03:52,153 INFO L208 CegarLoopForPetriNet]: trace histogram [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] [2022-09-16 12:03:52,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-09-16 12:03:52,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:03:52,368 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-09-16 12:03:52,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:03:52,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1256122616, now seen corresponding path program 1 times [2022-09-16 12:03:52,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:03:52,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636215431] [2022-09-16 12:03:52,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:03:52,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:03:52,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:03:52,481 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:03:52,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:03:52,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636215431] [2022-09-16 12:03:52,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636215431] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 12:03:52,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007853724] [2022-09-16 12:03:52,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:03:52,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:03:52,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 12:03:52,483 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 12:03:52,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-09-16 12:03:52,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:03:52,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 12:03:52,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 12:03:52,621 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:03:52,621 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 12:03:52,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007853724] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 12:03:52,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 12:03:52,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 12:03:52,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948472896] [2022-09-16 12:03:52,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 12:03:52,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 12:03:52,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:03:52,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 12:03:52,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 12:03:52,628 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 188 [2022-09-16 12:03:52,629 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 77 transitions, 258 flow. Second operand has 6 states, 6 states have (on average 161.33333333333334) internal successors, (968), 6 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 12:03:52,629 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 12:03:52,629 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 188 [2022-09-16 12:03:52,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 12:03:52,693 INFO L130 PetriNetUnfolder]: 1/96 cut-off events. [2022-09-16 12:03:52,693 INFO L131 PetriNetUnfolder]: For 47/47 co-relation queries the response was YES. [2022-09-16 12:03:52,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 96 events. 1/96 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 4/100 useless extension candidates. Maximal degree in co-relation 72. Up to 17 conditions per place. [2022-09-16 12:03:52,694 INFO L137 encePairwiseOnDemand]: 183/188 looper letters, 15 selfloop transitions, 11 changer transitions 0/77 dead transitions. [2022-09-16 12:03:52,694 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 77 transitions, 293 flow [2022-09-16 12:03:52,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 12:03:52,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-09-16 12:03:52,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1131 transitions. [2022-09-16 12:03:52,698 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8594224924012158 [2022-09-16 12:03:52,698 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1131 transitions. [2022-09-16 12:03:52,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1131 transitions. [2022-09-16 12:03:52,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 12:03:52,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1131 transitions. [2022-09-16 12:03:52,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 161.57142857142858) internal successors, (1131), 7 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 12:03:52,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 188.0) internal successors, (1504), 8 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 12:03:52,704 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 188.0) internal successors, (1504), 8 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 12:03:52,704 INFO L175 Difference]: Start difference. First operand has 89 places, 77 transitions, 258 flow. Second operand 7 states and 1131 transitions. [2022-09-16 12:03:52,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 77 transitions, 293 flow [2022-09-16 12:03:52,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 77 transitions, 261 flow, removed 11 selfloop flow, removed 5 redundant places. [2022-09-16 12:03:52,710 INFO L231 Difference]: Finished difference. Result has 85 places, 73 transitions, 221 flow [2022-09-16 12:03:52,710 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=221, PETRI_PLACES=85, PETRI_TRANSITIONS=73} [2022-09-16 12:03:52,712 INFO L287 CegarLoopForPetriNet]: 65 programPoint places, 20 predicate places. [2022-09-16 12:03:52,712 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 73 transitions, 221 flow [2022-09-16 12:03:52,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 161.33333333333334) internal successors, (968), 6 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 12:03:52,713 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 12:03:52,713 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 12:03:52,738 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-09-16 12:03:52,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-09-16 12:03:52,936 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-09-16 12:03:52,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 12:03:52,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1689399195, now seen corresponding path program 2 times [2022-09-16 12:03:52,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 12:03:52,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454340178] [2022-09-16 12:03:52,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 12:03:52,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 12:03:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 12:03:53,111 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 12:03:53,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 12:03:53,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454340178] [2022-09-16 12:03:53,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454340178] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 12:03:53,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081703051] [2022-09-16 12:03:53,112 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 12:03:53,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:03:53,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 12:03:53,116 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 12:03:53,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-09-16 12:03:53,190 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 12:03:53,190 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 12:03:53,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 7 conjunts are in the unsatisfiable core [2022-09-16 12:03:53,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 12:03:53,355 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-09-16 12:03:53,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 12:03:53,509 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-09-16 12:03:53,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081703051] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 12:03:53,509 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 12:03:53,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2022-09-16 12:03:53,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894080825] [2022-09-16 12:03:53,510 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 12:03:53,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 12:03:53,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 12:03:53,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 12:03:53,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-09-16 12:03:53,515 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 188 [2022-09-16 12:03:53,517 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 73 transitions, 221 flow. Second operand has 18 states, 18 states have (on average 147.72222222222223) internal successors, (2659), 18 states have internal predecessors, (2659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 12:03:53,517 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 12:03:53,518 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 188 [2022-09-16 12:03:53,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 12:03:53,985 INFO L130 PetriNetUnfolder]: 1/106 cut-off events. [2022-09-16 12:03:53,985 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2022-09-16 12:03:53,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 106 events. 1/106 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 2/108 useless extension candidates. Maximal degree in co-relation 121. Up to 7 conditions per place. [2022-09-16 12:03:53,988 INFO L137 encePairwiseOnDemand]: 177/188 looper letters, 0 selfloop transitions, 0 changer transitions 96/96 dead transitions. [2022-09-16 12:03:53,988 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 96 transitions, 396 flow [2022-09-16 12:03:53,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-09-16 12:03:53,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-09-16 12:03:53,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3514 transitions. [2022-09-16 12:03:53,998 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7788120567375887 [2022-09-16 12:03:53,998 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3514 transitions. [2022-09-16 12:03:53,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3514 transitions. [2022-09-16 12:03:54,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 12:03:54,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3514 transitions. [2022-09-16 12:03:54,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 146.41666666666666) internal successors, (3514), 24 states have internal predecessors, (3514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 12:03:54,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 188.0) internal successors, (4700), 25 states have internal predecessors, (4700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 12:03:54,042 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 188.0) internal successors, (4700), 25 states have internal predecessors, (4700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 12:03:54,043 INFO L175 Difference]: Start difference. First operand has 85 places, 73 transitions, 221 flow. Second operand 24 states and 3514 transitions. [2022-09-16 12:03:54,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 96 transitions, 396 flow [2022-09-16 12:03:54,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 96 transitions, 371 flow, removed 0 selfloop flow, removed 9 redundant places. [2022-09-16 12:03:54,049 INFO L231 Difference]: Finished difference. Result has 98 places, 0 transitions, 0 flow [2022-09-16 12:03:54,049 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=188, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=0, PETRI_PLACES=98, PETRI_TRANSITIONS=0} [2022-09-16 12:03:54,050 INFO L287 CegarLoopForPetriNet]: 65 programPoint places, 33 predicate places. [2022-09-16 12:03:54,050 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 0 transitions, 0 flow [2022-09-16 12:03:54,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 147.72222222222223) internal successors, (2659), 18 states have internal predecessors, (2659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 12:03:54,054 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-09-16 12:03:54,054 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-09-16 12:03:54,054 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-09-16 12:03:54,055 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-09-16 12:03:54,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-09-16 12:03:54,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 12:03:54,276 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-09-16 12:03:54,279 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 12:03:54,279 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 12:03:54,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 12:03:54 BasicIcfg [2022-09-16 12:03:54,283 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 12:03:54,284 INFO L158 Benchmark]: Toolchain (without parser) took 4489.16ms. Allocated memory is still 254.8MB. Free memory was 228.0MB in the beginning and 173.9MB in the end (delta: 54.1MB). Peak memory consumption was 54.1MB. Max. memory is 8.0GB. [2022-09-16 12:03:54,284 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 198.2MB. Free memory is still 151.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 12:03:54,285 INFO L158 Benchmark]: CACSL2BoogieTranslator took 253.59ms. Allocated memory is still 254.8MB. Free memory was 227.5MB in the beginning and 222.4MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-09-16 12:03:54,285 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.96ms. Allocated memory is still 254.8MB. Free memory was 222.4MB in the beginning and 220.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 12:03:54,287 INFO L158 Benchmark]: Boogie Preprocessor took 29.28ms. Allocated memory is still 254.8MB. Free memory was 220.3MB in the beginning and 219.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-16 12:03:54,290 INFO L158 Benchmark]: RCFGBuilder took 603.69ms. Allocated memory is still 254.8MB. Free memory was 218.8MB in the beginning and 202.5MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-09-16 12:03:54,290 INFO L158 Benchmark]: TraceAbstraction took 3550.45ms. Allocated memory is still 254.8MB. Free memory was 201.5MB in the beginning and 173.9MB in the end (delta: 27.6MB). Peak memory consumption was 28.6MB. Max. memory is 8.0GB. [2022-09-16 12:03:54,292 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 198.2MB. Free memory is still 151.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 253.59ms. Allocated memory is still 254.8MB. Free memory was 227.5MB in the beginning and 222.4MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.96ms. Allocated memory is still 254.8MB. Free memory was 222.4MB in the beginning and 220.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.28ms. Allocated memory is still 254.8MB. Free memory was 220.3MB in the beginning and 219.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 603.69ms. Allocated memory is still 254.8MB. Free memory was 218.8MB in the beginning and 202.5MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 3550.45ms. Allocated memory is still 254.8MB. Free memory was 201.5MB in the beginning and 173.9MB in the end (delta: 27.6MB). Peak memory consumption was 28.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 238 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.4s, OverallIterations: 4, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 189 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 189 mSDsluCounter, 79 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 59 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 254 IncrementalHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 20 mSDtfsCounter, 254 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 440 GetRequests, 366 SyntacticMatches, 5 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=258occurred in iteration=2, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 509 NumberOfCodeBlocks, 473 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 659 ConstructedInterpolants, 0 QuantifiedInterpolants, 1193 SizeOfPredicates, 12 NumberOfNonLiveVariables, 424 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 123/266 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 12:03:54,324 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...