/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/pthread-divine/divinefifo_1w1r.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:38:57,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:38:57,792 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:38:57,823 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:38:57,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:38:57,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:38:57,825 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:38:57,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:38:57,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:38:57,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:38:57,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:38:57,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:38:57,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:38:57,830 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:38:57,830 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:38:57,831 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:38:57,832 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:38:57,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:38:57,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:38:57,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:38:57,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:38:57,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:38:57,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:38:57,839 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:38:57,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:38:57,843 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:38:57,843 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:38:57,844 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:38:57,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:38:57,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 11:38:57,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 11:38:57,846 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 11:38:57,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 11:38:57,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 11:38:57,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 11:38:57,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 11:38:57,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 11:38:57,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 11:38:57,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:38:57,849 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:38:57,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:38:57,851 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 11:38:57,867 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:38:57,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:38:57,868 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:38:57,869 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:38:57,869 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:38:57,869 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:38:57,869 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:38:57,870 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:38:57,870 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:38:57,870 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:38:57,870 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:38:57,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:38:57,870 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:38:57,870 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:38:57,871 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:38:57,871 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:38:57,871 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:38:57,871 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:38:57,871 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:38:57,871 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:38:57,872 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:38:57,872 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:38:57,872 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:38:57,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:38:57,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:38:57,872 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:38:57,872 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:38:57,872 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:38:57,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:38:57,873 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:38:57,873 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:38:57,873 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:38:58,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:38:58,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:38:58,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:38:58,047 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:38:58,051 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:38:58,052 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/divinefifo_1w1r.i [2022-09-16 11:38:58,095 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/835dfc1f3/9670e69f970c44648fc30d63ebcace09/FLAGdf48193a3 [2022-09-16 11:38:58,570 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:38:58,579 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/divinefifo_1w1r.i [2022-09-16 11:38:58,595 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/835dfc1f3/9670e69f970c44648fc30d63ebcace09/FLAGdf48193a3 [2022-09-16 11:38:58,610 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/835dfc1f3/9670e69f970c44648fc30d63ebcace09 [2022-09-16 11:38:58,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:38:58,613 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:38:58,614 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:38:58,614 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:38:58,619 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:38:58,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:38:58" (1/1) ... [2022-09-16 11:38:58,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ab54314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:38:58, skipping insertion in model container [2022-09-16 11:38:58,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:38:58" (1/1) ... [2022-09-16 11:38:58,626 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:38:58,681 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:38:58,792 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-09-16 11:38:58,986 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/divinefifo_1w1r.i[47275,47288] [2022-09-16 11:38:58,989 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/divinefifo_1w1r.i[47463,47476] [2022-09-16 11:38:59,003 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/divinefifo_1w1r.i[48230,48243] [2022-09-16 11:38:59,004 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/divinefifo_1w1r.i[48344,48357] [2022-09-16 11:38:59,015 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/divinefifo_1w1r.i[48781,48794] [2022-09-16 11:38:59,015 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/divinefifo_1w1r.i[48837,48850] [2022-09-16 11:38:59,025 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/divinefifo_1w1r.i[49349,49362] [2022-09-16 11:38:59,031 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/divinefifo_1w1r.i[49408,49421] [2022-09-16 11:38:59,032 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/divinefifo_1w1r.i[49487,49500] [2022-09-16 11:38:59,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:38:59,040 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:38:59,053 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-09-16 11:38:59,073 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/divinefifo_1w1r.i[47275,47288] [2022-09-16 11:38:59,074 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/divinefifo_1w1r.i[47463,47476] [2022-09-16 11:38:59,078 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/divinefifo_1w1r.i[48230,48243] [2022-09-16 11:38:59,079 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/divinefifo_1w1r.i[48344,48357] [2022-09-16 11:38:59,086 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/divinefifo_1w1r.i[48781,48794] [2022-09-16 11:38:59,087 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/divinefifo_1w1r.i[48837,48850] [2022-09-16 11:38:59,089 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/divinefifo_1w1r.i[49349,49362] [2022-09-16 11:38:59,090 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/divinefifo_1w1r.i[49408,49421] [2022-09-16 11:38:59,090 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/divinefifo_1w1r.i[49487,49500] [2022-09-16 11:38:59,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:38:59,138 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:38:59,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:38:59 WrapperNode [2022-09-16 11:38:59,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:38:59,139 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:38:59,139 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:38:59,140 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:38:59,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:38:59" (1/1) ... [2022-09-16 11:38:59,169 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:38:59" (1/1) ... [2022-09-16 11:38:59,219 INFO L138 Inliner]: procedures = 278, calls = 101, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 413 [2022-09-16 11:38:59,220 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:38:59,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:38:59,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:38:59,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:38:59,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:38:59" (1/1) ... [2022-09-16 11:38:59,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:38:59" (1/1) ... [2022-09-16 11:38:59,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:38:59" (1/1) ... [2022-09-16 11:38:59,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:38:59" (1/1) ... [2022-09-16 11:38:59,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:38:59" (1/1) ... [2022-09-16 11:38:59,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:38:59" (1/1) ... [2022-09-16 11:38:59,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:38:59" (1/1) ... [2022-09-16 11:38:59,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:38:59,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:38:59,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:38:59,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:38:59,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:38:59" (1/1) ... [2022-09-16 11:38:59,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:38:59,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:38:59,299 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 11:38:59,306 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 11:38:59,327 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-09-16 11:38:59,327 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-09-16 11:38:59,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:38:59,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-09-16 11:38:59,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:38:59,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 11:38:59,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:38:59,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-09-16 11:38:59,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:38:59,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-09-16 11:38:59,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:38:59,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:38:59,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:38:59,329 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 11:38:59,487 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:38:59,488 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:38:59,972 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:38:59,979 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:38:59,980 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-09-16 11:38:59,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:38:59 BoogieIcfgContainer [2022-09-16 11:38:59,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:38:59,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:38:59,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:38:59,985 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:38:59,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:38:58" (1/3) ... [2022-09-16 11:38:59,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1163e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:38:59, skipping insertion in model container [2022-09-16 11:38:59,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:38:59" (2/3) ... [2022-09-16 11:38:59,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1163e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:38:59, skipping insertion in model container [2022-09-16 11:38:59,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:38:59" (3/3) ... [2022-09-16 11:38:59,987 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo_1w1r.i [2022-09-16 11:38:59,998 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:38:59,998 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 11:38:59,998 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:39:00,090 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-09-16 11:39:00,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 472 places, 500 transitions, 1008 flow [2022-09-16 11:39:00,288 INFO L130 PetriNetUnfolder]: 32/499 cut-off events. [2022-09-16 11:39:00,288 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-09-16 11:39:00,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 504 conditions, 499 events. 32/499 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1150 event pairs, 0 based on Foata normal form. 0/459 useless extension candidates. Maximal degree in co-relation 348. Up to 3 conditions per place. [2022-09-16 11:39:00,300 INFO L82 GeneralOperation]: Start removeDead. Operand has 472 places, 500 transitions, 1008 flow [2022-09-16 11:39:00,308 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 404 places, 427 transitions, 857 flow [2022-09-16 11:39:00,319 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:39:00,324 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;@201f494c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:39:00,325 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-09-16 11:39:00,333 INFO L130 PetriNetUnfolder]: 4/91 cut-off events. [2022-09-16 11:39:00,333 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:39:00,334 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:39:00,335 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:39:00,335 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting pusherErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [pusherErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pusherErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pusherErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 11:39:00,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:39:00,338 INFO L85 PathProgramCache]: Analyzing trace with hash -2124946317, now seen corresponding path program 1 times [2022-09-16 11:39:00,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:39:00,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125142688] [2022-09-16 11:39:00,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:39:00,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:39:00,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:39:00,651 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 11:39:00,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:39:00,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125142688] [2022-09-16 11:39:00,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125142688] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:39:00,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:39:00,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:39:00,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733052305] [2022-09-16 11:39:00,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:39:00,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:39:00,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:39:00,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:39:00,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:39:00,699 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 500 [2022-09-16 11:39:00,716 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 427 transitions, 857 flow. Second operand has 3 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 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 11:39:00,717 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:39:00,717 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 500 [2022-09-16 11:39:00,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:39:00,824 INFO L130 PetriNetUnfolder]: 17/475 cut-off events. [2022-09-16 11:39:00,824 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-09-16 11:39:00,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 503 conditions, 475 events. 17/475 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1049 event pairs, 0 based on Foata normal form. 106/547 useless extension candidates. Maximal degree in co-relation 419. Up to 16 conditions per place. [2022-09-16 11:39:00,856 INFO L137 encePairwiseOnDemand]: 481/500 looper letters, 21 selfloop transitions, 2 changer transitions 1/423 dead transitions. [2022-09-16 11:39:00,856 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 423 transitions, 895 flow [2022-09-16 11:39:00,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:39:00,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:39:00,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1458 transitions. [2022-09-16 11:39:00,868 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.972 [2022-09-16 11:39:00,869 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1458 transitions. [2022-09-16 11:39:00,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1458 transitions. [2022-09-16 11:39:00,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:39:00,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1458 transitions. [2022-09-16 11:39:00,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 486.0) internal successors, (1458), 3 states have internal predecessors, (1458), 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 11:39:00,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 500.0) internal successors, (2000), 4 states have internal predecessors, (2000), 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 11:39:00,890 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 500.0) internal successors, (2000), 4 states have internal predecessors, (2000), 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 11:39:00,891 INFO L175 Difference]: Start difference. First operand has 404 places, 427 transitions, 857 flow. Second operand 3 states and 1458 transitions. [2022-09-16 11:39:00,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 423 transitions, 895 flow [2022-09-16 11:39:00,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 423 transitions, 894 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:39:00,900 INFO L231 Difference]: Finished difference. Result has 406 places, 415 transitions, 850 flow [2022-09-16 11:39:00,902 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=500, PETRI_DIFFERENCE_MINUEND_FLOW=832, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=850, PETRI_PLACES=406, PETRI_TRANSITIONS=415} [2022-09-16 11:39:00,904 INFO L287 CegarLoopForPetriNet]: 404 programPoint places, 2 predicate places. [2022-09-16 11:39:00,905 INFO L495 AbstractCegarLoop]: Abstraction has has 406 places, 415 transitions, 850 flow [2022-09-16 11:39:00,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 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 11:39:00,905 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:39:00,906 INFO L208 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 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 11:39:00,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:39:00,906 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting pusherErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [pusherErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pusherErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pusherErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 11:39:00,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:39:00,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1427901580, now seen corresponding path program 1 times [2022-09-16 11:39:00,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:39:00,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598789406] [2022-09-16 11:39:00,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:39:00,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:39:00,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:39:01,010 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:39:01,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:39:01,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598789406] [2022-09-16 11:39:01,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598789406] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:39:01,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:39:01,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:39:01,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190371210] [2022-09-16 11:39:01,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:39:01,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:39:01,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:39:01,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:39:01,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:39:01,014 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 500 [2022-09-16 11:39:01,015 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 415 transitions, 850 flow. Second operand has 3 states, 3 states have (on average 473.0) internal successors, (1419), 3 states have internal predecessors, (1419), 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 11:39:01,015 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:39:01,015 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 500 [2022-09-16 11:39:01,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:39:01,099 INFO L130 PetriNetUnfolder]: 17/472 cut-off events. [2022-09-16 11:39:01,099 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-09-16 11:39:01,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 506 conditions, 472 events. 17/472 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1049 event pairs, 0 based on Foata normal form. 2/446 useless extension candidates. Maximal degree in co-relation 422. Up to 17 conditions per place. [2022-09-16 11:39:01,108 INFO L137 encePairwiseOnDemand]: 495/500 looper letters, 11 selfloop transitions, 4 changer transitions 0/414 dead transitions. [2022-09-16 11:39:01,108 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 414 transitions, 874 flow [2022-09-16 11:39:01,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:39:01,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:39:01,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1423 transitions. [2022-09-16 11:39:01,111 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9486666666666667 [2022-09-16 11:39:01,111 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1423 transitions. [2022-09-16 11:39:01,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1423 transitions. [2022-09-16 11:39:01,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:39:01,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1423 transitions. [2022-09-16 11:39:01,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 474.3333333333333) internal successors, (1423), 3 states have internal predecessors, (1423), 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 11:39:01,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 500.0) internal successors, (2000), 4 states have internal predecessors, (2000), 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 11:39:01,118 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 500.0) internal successors, (2000), 4 states have internal predecessors, (2000), 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 11:39:01,118 INFO L175 Difference]: Start difference. First operand has 406 places, 415 transitions, 850 flow. Second operand 3 states and 1423 transitions. [2022-09-16 11:39:01,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 414 transitions, 874 flow [2022-09-16 11:39:01,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 414 transitions, 872 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:39:01,125 INFO L231 Difference]: Finished difference. Result has 405 places, 414 transitions, 856 flow [2022-09-16 11:39:01,126 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=500, PETRI_DIFFERENCE_MINUEND_FLOW=840, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=856, PETRI_PLACES=405, PETRI_TRANSITIONS=414} [2022-09-16 11:39:01,127 INFO L287 CegarLoopForPetriNet]: 404 programPoint places, 1 predicate places. [2022-09-16 11:39:01,128 INFO L495 AbstractCegarLoop]: Abstraction has has 405 places, 414 transitions, 856 flow [2022-09-16 11:39:01,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 473.0) internal successors, (1419), 3 states have internal predecessors, (1419), 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 11:39:01,129 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:39:01,129 INFO L208 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 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 11:39:01,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:39:01,129 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting pusherErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [pusherErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pusherErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pusherErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 11:39:01,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:39:01,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1315274833, now seen corresponding path program 1 times [2022-09-16 11:39:01,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:39:01,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118912896] [2022-09-16 11:39:01,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:39:01,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:39:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:39:01,222 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:39:01,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:39:01,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118912896] [2022-09-16 11:39:01,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118912896] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:39:01,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928542157] [2022-09-16 11:39:01,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:39:01,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:39:01,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:39:01,225 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 11:39:01,226 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 11:39:01,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:39:01,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 3 conjunts are in the unsatisfiable core [2022-09-16 11:39:01,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:39:01,494 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:39:01,494 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:39:01,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928542157] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:39:01,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:39:01,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-09-16 11:39:01,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632028473] [2022-09-16 11:39:01,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:39:01,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:39:01,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:39:01,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:39:01,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:39:01,498 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 500 [2022-09-16 11:39:01,500 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 414 transitions, 856 flow. Second operand has 4 states, 4 states have (on average 472.25) internal successors, (1889), 4 states have internal predecessors, (1889), 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 11:39:01,500 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:39:01,500 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 500 [2022-09-16 11:39:01,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:39:01,587 INFO L130 PetriNetUnfolder]: 17/470 cut-off events. [2022-09-16 11:39:01,587 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-09-16 11:39:01,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 506 conditions, 470 events. 17/470 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1031 event pairs, 0 based on Foata normal form. 2/444 useless extension candidates. Maximal degree in co-relation 422. Up to 10 conditions per place. [2022-09-16 11:39:01,596 INFO L137 encePairwiseOnDemand]: 496/500 looper letters, 17 selfloop transitions, 2 changer transitions 0/418 dead transitions. [2022-09-16 11:39:01,596 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 418 transitions, 898 flow [2022-09-16 11:39:01,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:39:01,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:39:01,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1897 transitions. [2022-09-16 11:39:01,599 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9485 [2022-09-16 11:39:01,599 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1897 transitions. [2022-09-16 11:39:01,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1897 transitions. [2022-09-16 11:39:01,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:39:01,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1897 transitions. [2022-09-16 11:39:01,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 474.25) internal successors, (1897), 4 states have internal predecessors, (1897), 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 11:39:01,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 500.0) internal successors, (2500), 5 states have internal predecessors, (2500), 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 11:39:01,607 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 500.0) internal successors, (2500), 5 states have internal predecessors, (2500), 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 11:39:01,607 INFO L175 Difference]: Start difference. First operand has 405 places, 414 transitions, 856 flow. Second operand 4 states and 1897 transitions. [2022-09-16 11:39:01,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 418 transitions, 898 flow [2022-09-16 11:39:01,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 418 transitions, 894 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:39:01,613 INFO L231 Difference]: Finished difference. Result has 405 places, 412 transitions, 848 flow [2022-09-16 11:39:01,614 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=500, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=848, PETRI_PLACES=405, PETRI_TRANSITIONS=412} [2022-09-16 11:39:01,615 INFO L287 CegarLoopForPetriNet]: 404 programPoint places, 1 predicate places. [2022-09-16 11:39:01,616 INFO L495 AbstractCegarLoop]: Abstraction has has 405 places, 412 transitions, 848 flow [2022-09-16 11:39:01,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 472.25) internal successors, (1889), 4 states have internal predecessors, (1889), 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 11:39:01,617 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:39:01,617 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:39:01,638 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 11:39:01,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:39:01,836 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [pusherErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pusherErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pusherErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 11:39:01,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:39:01,836 INFO L85 PathProgramCache]: Analyzing trace with hash -441985417, now seen corresponding path program 1 times [2022-09-16 11:39:01,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:39:01,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712462389] [2022-09-16 11:39:01,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:39:01,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:39:01,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:39:01,953 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 11:39:01,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:39:01,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712462389] [2022-09-16 11:39:01,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712462389] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:39:01,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:39:01,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:39:01,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020812954] [2022-09-16 11:39:01,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:39:01,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:39:01,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:39:01,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:39:01,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:39:01,958 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 467 out of 500 [2022-09-16 11:39:01,960 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 412 transitions, 848 flow. Second operand has 3 states, 3 states have (on average 468.6666666666667) internal successors, (1406), 3 states have internal predecessors, (1406), 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 11:39:01,963 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:39:01,963 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 467 of 500 [2022-09-16 11:39:01,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:39:02,112 INFO L130 PetriNetUnfolder]: 26/698 cut-off events. [2022-09-16 11:39:02,112 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-09-16 11:39:02,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 742 conditions, 698 events. 26/698 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1295 event pairs, 0 based on Foata normal form. 0/654 useless extension candidates. Maximal degree in co-relation 656. Up to 18 conditions per place. [2022-09-16 11:39:02,124 INFO L137 encePairwiseOnDemand]: 493/500 looper letters, 24 selfloop transitions, 2 changer transitions 0/421 dead transitions. [2022-09-16 11:39:02,124 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 421 transitions, 918 flow [2022-09-16 11:39:02,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:39:02,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:39:02,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1432 transitions. [2022-09-16 11:39:02,127 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9546666666666667 [2022-09-16 11:39:02,127 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1432 transitions. [2022-09-16 11:39:02,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1432 transitions. [2022-09-16 11:39:02,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:39:02,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1432 transitions. [2022-09-16 11:39:02,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 477.3333333333333) internal successors, (1432), 3 states have internal predecessors, (1432), 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 11:39:02,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 500.0) internal successors, (2000), 4 states have internal predecessors, (2000), 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 11:39:02,133 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 500.0) internal successors, (2000), 4 states have internal predecessors, (2000), 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 11:39:02,133 INFO L175 Difference]: Start difference. First operand has 405 places, 412 transitions, 848 flow. Second operand 3 states and 1432 transitions. [2022-09-16 11:39:02,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 421 transitions, 918 flow [2022-09-16 11:39:02,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 421 transitions, 915 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:39:02,139 INFO L231 Difference]: Finished difference. Result has 406 places, 413 transitions, 865 flow [2022-09-16 11:39:02,140 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=500, PETRI_DIFFERENCE_MINUEND_FLOW=845, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=865, PETRI_PLACES=406, PETRI_TRANSITIONS=413} [2022-09-16 11:39:02,141 INFO L287 CegarLoopForPetriNet]: 404 programPoint places, 2 predicate places. [2022-09-16 11:39:02,141 INFO L495 AbstractCegarLoop]: Abstraction has has 406 places, 413 transitions, 865 flow [2022-09-16 11:39:02,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 468.6666666666667) internal successors, (1406), 3 states have internal predecessors, (1406), 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 11:39:02,142 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:39:02,143 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:39:02,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:39:02,143 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [pusherErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pusherErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pusherErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 11:39:02,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:39:02,143 INFO L85 PathProgramCache]: Analyzing trace with hash 851864234, now seen corresponding path program 1 times [2022-09-16 11:39:02,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:39:02,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943357041] [2022-09-16 11:39:02,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:39:02,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:39:02,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:39:02,257 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:39:02,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:39:02,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943357041] [2022-09-16 11:39:02,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943357041] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:39:02,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:39:02,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:39:02,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770371448] [2022-09-16 11:39:02,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:39:02,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:39:02,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:39:02,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:39:02,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:39:02,260 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 467 out of 500 [2022-09-16 11:39:02,261 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 413 transitions, 865 flow. Second operand has 3 states, 3 states have (on average 471.3333333333333) internal successors, (1414), 3 states have internal predecessors, (1414), 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 11:39:02,261 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:39:02,261 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 467 of 500 [2022-09-16 11:39:02,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:39:02,394 INFO L130 PetriNetUnfolder]: 26/696 cut-off events. [2022-09-16 11:39:02,395 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-09-16 11:39:02,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 745 conditions, 696 events. 26/696 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1301 event pairs, 0 based on Foata normal form. 2/659 useless extension candidates. Maximal degree in co-relation 658. Up to 19 conditions per place. [2022-09-16 11:39:02,403 INFO L137 encePairwiseOnDemand]: 495/500 looper letters, 13 selfloop transitions, 4 changer transitions 0/412 dead transitions. [2022-09-16 11:39:02,403 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 412 transitions, 893 flow [2022-09-16 11:39:02,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:39:02,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:39:02,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1419 transitions. [2022-09-16 11:39:02,407 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.946 [2022-09-16 11:39:02,407 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1419 transitions. [2022-09-16 11:39:02,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1419 transitions. [2022-09-16 11:39:02,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:39:02,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1419 transitions. [2022-09-16 11:39:02,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 473.0) internal successors, (1419), 3 states have internal predecessors, (1419), 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 11:39:02,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 500.0) internal successors, (2000), 4 states have internal predecessors, (2000), 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 11:39:02,413 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 500.0) internal successors, (2000), 4 states have internal predecessors, (2000), 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 11:39:02,413 INFO L175 Difference]: Start difference. First operand has 406 places, 413 transitions, 865 flow. Second operand 3 states and 1419 transitions. [2022-09-16 11:39:02,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 412 transitions, 893 flow [2022-09-16 11:39:02,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 412 transitions, 891 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:39:02,418 INFO L231 Difference]: Finished difference. Result has 406 places, 412 transitions, 871 flow [2022-09-16 11:39:02,419 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=500, PETRI_DIFFERENCE_MINUEND_FLOW=855, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=871, PETRI_PLACES=406, PETRI_TRANSITIONS=412} [2022-09-16 11:39:02,421 INFO L287 CegarLoopForPetriNet]: 404 programPoint places, 2 predicate places. [2022-09-16 11:39:02,421 INFO L495 AbstractCegarLoop]: Abstraction has has 406 places, 412 transitions, 871 flow [2022-09-16 11:39:02,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 471.3333333333333) internal successors, (1414), 3 states have internal predecessors, (1414), 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 11:39:02,422 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:39:02,422 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2022-09-16 11:39:02,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:39:02,422 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [pusherErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pusherErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pusherErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 11:39:02,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:39:02,422 INFO L85 PathProgramCache]: Analyzing trace with hash 637988416, now seen corresponding path program 1 times [2022-09-16 11:39:02,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:39:02,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502467290] [2022-09-16 11:39:02,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:39:02,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:39:02,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:39:02,546 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:39:02,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:39:02,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502467290] [2022-09-16 11:39:02,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502467290] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:39:02,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927099147] [2022-09-16 11:39:02,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:39:02,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:39:02,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:39:02,551 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 11:39:02,552 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 11:39:02,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:39:02,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 3 conjunts are in the unsatisfiable core [2022-09-16 11:39:02,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:39:03,002 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:39:03,002 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:39:03,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927099147] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:39:03,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:39:03,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-09-16 11:39:03,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457742487] [2022-09-16 11:39:03,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:39:03,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:39:03,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:39:03,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:39:03,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:39:03,005 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 467 out of 500 [2022-09-16 11:39:03,007 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 412 transitions, 871 flow. Second operand has 4 states, 4 states have (on average 470.5) internal successors, (1882), 4 states have internal predecessors, (1882), 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 11:39:03,007 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:39:03,007 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 467 of 500 [2022-09-16 11:39:03,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:39:03,141 INFO L130 PetriNetUnfolder]: 26/694 cut-off events. [2022-09-16 11:39:03,142 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-09-16 11:39:03,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 745 conditions, 694 events. 26/694 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1287 event pairs, 0 based on Foata normal form. 2/657 useless extension candidates. Maximal degree in co-relation 658. Up to 11 conditions per place. [2022-09-16 11:39:03,151 INFO L137 encePairwiseOnDemand]: 496/500 looper letters, 0 selfloop transitions, 0 changer transitions 417/417 dead transitions. [2022-09-16 11:39:03,151 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 417 transitions, 921 flow [2022-09-16 11:39:03,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:39:03,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:39:03,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1892 transitions. [2022-09-16 11:39:03,156 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.946 [2022-09-16 11:39:03,156 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1892 transitions. [2022-09-16 11:39:03,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1892 transitions. [2022-09-16 11:39:03,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:39:03,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1892 transitions. [2022-09-16 11:39:03,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 473.0) internal successors, (1892), 4 states have internal predecessors, (1892), 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 11:39:03,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 500.0) internal successors, (2500), 5 states have internal predecessors, (2500), 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 11:39:03,165 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 500.0) internal successors, (2500), 5 states have internal predecessors, (2500), 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 11:39:03,165 INFO L175 Difference]: Start difference. First operand has 406 places, 412 transitions, 871 flow. Second operand 4 states and 1892 transitions. [2022-09-16 11:39:03,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 417 transitions, 921 flow [2022-09-16 11:39:03,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 417 transitions, 917 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:39:03,169 INFO L231 Difference]: Finished difference. Result has 406 places, 0 transitions, 0 flow [2022-09-16 11:39:03,169 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=500, PETRI_DIFFERENCE_MINUEND_FLOW=859, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=406, PETRI_TRANSITIONS=0} [2022-09-16 11:39:03,171 INFO L287 CegarLoopForPetriNet]: 404 programPoint places, 2 predicate places. [2022-09-16 11:39:03,171 INFO L495 AbstractCegarLoop]: Abstraction has has 406 places, 0 transitions, 0 flow [2022-09-16 11:39:03,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 470.5) internal successors, (1882), 4 states have internal predecessors, (1882), 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 11:39:03,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location pusherErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2022-09-16 11:39:03,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location pusherErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2022-09-16 11:39:03,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location pusherErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2022-09-16 11:39:03,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location pusherErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2022-09-16 11:39:03,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2022-09-16 11:39:03,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2022-09-16 11:39:03,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2022-09-16 11:39:03,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2022-09-16 11:39:03,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2022-09-16 11:39:03,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location pusherErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2022-09-16 11:39:03,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location pusherErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2022-09-16 11:39:03,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location pusherErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2022-09-16 11:39:03,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location pusherErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2022-09-16 11:39:03,196 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 11:39:03,379 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,SelfDestructingSolverStorable5 [2022-09-16 11:39:03,380 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-09-16 11:39:03,384 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:39:03,384 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:39:03,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:39:03 BasicIcfg [2022-09-16 11:39:03,389 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:39:03,390 INFO L158 Benchmark]: Toolchain (without parser) took 4776.40ms. Allocated memory was 180.4MB in the beginning and 280.0MB in the end (delta: 99.6MB). Free memory was 155.2MB in the beginning and 192.9MB in the end (delta: -37.7MB). Peak memory consumption was 173.0MB. Max. memory is 8.0GB. [2022-09-16 11:39:03,390 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 180.4MB. Free memory is still 140.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:39:03,390 INFO L158 Benchmark]: CACSL2BoogieTranslator took 524.46ms. Allocated memory was 180.4MB in the beginning and 217.1MB in the end (delta: 36.7MB). Free memory was 154.9MB in the beginning and 169.5MB in the end (delta: -14.6MB). Peak memory consumption was 24.3MB. Max. memory is 8.0GB. [2022-09-16 11:39:03,390 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.63ms. Allocated memory is still 217.1MB. Free memory was 169.5MB in the beginning and 165.4MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-09-16 11:39:03,391 INFO L158 Benchmark]: Boogie Preprocessor took 36.70ms. Allocated memory is still 217.1MB. Free memory was 165.4MB in the beginning and 162.1MB in the end (delta: 3.3MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-16 11:39:03,391 INFO L158 Benchmark]: RCFGBuilder took 723.76ms. Allocated memory is still 217.1MB. Free memory was 162.1MB in the beginning and 124.5MB in the end (delta: 37.6MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2022-09-16 11:39:03,391 INFO L158 Benchmark]: TraceAbstraction took 3406.77ms. Allocated memory was 217.1MB in the beginning and 280.0MB in the end (delta: 62.9MB). Free memory was 123.9MB in the beginning and 192.9MB in the end (delta: -69.1MB). Peak memory consumption was 105.7MB. Max. memory is 8.0GB. [2022-09-16 11:39:03,392 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 180.4MB. Free memory is still 140.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 524.46ms. Allocated memory was 180.4MB in the beginning and 217.1MB in the end (delta: 36.7MB). Free memory was 154.9MB in the beginning and 169.5MB in the end (delta: -14.6MB). Peak memory consumption was 24.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 80.63ms. Allocated memory is still 217.1MB. Free memory was 169.5MB in the beginning and 165.4MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.70ms. Allocated memory is still 217.1MB. Free memory was 165.4MB in the beginning and 162.1MB in the end (delta: 3.3MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 723.76ms. Allocated memory is still 217.1MB. Free memory was 162.1MB in the beginning and 124.5MB in the end (delta: 37.6MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. * TraceAbstraction took 3406.77ms. Allocated memory was 217.1MB in the beginning and 280.0MB in the end (delta: 62.9MB). Free memory was 123.9MB in the beginning and 192.9MB in the end (delta: -69.1MB). Peak memory consumption was 105.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1085]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1085]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1084]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1084]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1096]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1096]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1093]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1093]: 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 3 procedures, 539 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.3s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 44 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 44 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 140 IncrementalHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 21 mSDtfsCounter, 140 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 411 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=871occurred in iteration=5, InterpolantAutomatonStates: 20, 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, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1447 NumberOfCodeBlocks, 1447 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1439 ConstructedInterpolants, 0 QuantifiedInterpolants, 2855 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1025 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 210/316 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:39:03,427 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...