/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/popl20-more-multiply-verify.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:59:01,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:59:01,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:59:01,117 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:59:01,118 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:59:01,119 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:59:01,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:59:01,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:59:01,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:59:01,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:59:01,123 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:59:01,124 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:59:01,124 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:59:01,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:59:01,125 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:59:01,126 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:59:01,126 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:59:01,127 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:59:01,128 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:59:01,129 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:59:01,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:59:01,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:59:01,140 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:59:01,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:59:01,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:59:01,146 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:59:01,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:59:01,147 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:59:01,147 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:59:01,148 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 11:59:01,148 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 11:59:01,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 11:59:01,149 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 11:59:01,149 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 11:59:01,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 11:59:01,150 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 11:59:01,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 11:59:01,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 11:59:01,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:59:01,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:59:01,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:59:01,158 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 11:59:01,177 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:59:01,177 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:59:01,178 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:59:01,178 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:59:01,178 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:59:01,178 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:59:01,178 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:59:01,178 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:59:01,179 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:59:01,179 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:59:01,179 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:59:01,179 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:59:01,181 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:59:01,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:59:01,181 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:59:01,181 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:59:01,182 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:59:01,182 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:59:01,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:59:01,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:59:01,182 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:59:01,182 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:59:01,182 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:59:01,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:59:01,182 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:59:01,183 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:59:01,183 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:59:01,183 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:59:01,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:59:01,183 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:59:01,183 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:59:01,183 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:59:01,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:59:01,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:59:01,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:59:01,411 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:59:01,412 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:59:01,414 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-multiply-verify.wvr.c [2022-09-16 11:59:01,452 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7bbd26fe/4c820635980a4b64bcaf0c1cae4c7232/FLAGef5a8322d [2022-09-16 11:59:01,819 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:59:01,819 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-multiply-verify.wvr.c [2022-09-16 11:59:01,827 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7bbd26fe/4c820635980a4b64bcaf0c1cae4c7232/FLAGef5a8322d [2022-09-16 11:59:01,835 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7bbd26fe/4c820635980a4b64bcaf0c1cae4c7232 [2022-09-16 11:59:01,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:59:01,838 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:59:01,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:59:01,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:59:01,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:59:01,843 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:59:01" (1/1) ... [2022-09-16 11:59:01,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@536ef690 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:59:01, skipping insertion in model container [2022-09-16 11:59:01,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:59:01" (1/1) ... [2022-09-16 11:59:01,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:59:01,865 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:59:02,045 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-multiply-verify.wvr.c[3042,3055] [2022-09-16 11:59:02,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:59:02,059 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:59:02,087 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-multiply-verify.wvr.c[3042,3055] [2022-09-16 11:59:02,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:59:02,102 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:59:02,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:59:02 WrapperNode [2022-09-16 11:59:02,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:59:02,103 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:59:02,104 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:59:02,104 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:59:02,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:59:02" (1/1) ... [2022-09-16 11:59:02,124 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:59:02" (1/1) ... [2022-09-16 11:59:02,150 INFO L138 Inliner]: procedures = 26, calls = 50, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 195 [2022-09-16 11:59:02,150 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:59:02,151 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:59:02,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:59:02,151 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:59:02,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:59:02" (1/1) ... [2022-09-16 11:59:02,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:59:02" (1/1) ... [2022-09-16 11:59:02,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:59:02" (1/1) ... [2022-09-16 11:59:02,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:59:02" (1/1) ... [2022-09-16 11:59:02,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:59:02" (1/1) ... [2022-09-16 11:59:02,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:59:02" (1/1) ... [2022-09-16 11:59:02,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:59:02" (1/1) ... [2022-09-16 11:59:02,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:59:02,181 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:59:02,181 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:59:02,181 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:59:02,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:59:02" (1/1) ... [2022-09-16 11:59:02,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:59:02,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:59:02,217 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 11:59:02,235 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 11:59:02,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:59:02,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:59:02,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:59:02,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 11:59:02,251 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-16 11:59:02,251 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-16 11:59:02,251 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-16 11:59:02,251 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-16 11:59:02,251 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-16 11:59:02,251 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-16 11:59:02,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:59:02,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:59:02,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:59:02,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-09-16 11:59:02,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:59:02,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:59:02,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:59:02,253 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 11:59:02,320 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:59:02,321 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:59:02,561 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:59:02,671 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:59:02,672 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-09-16 11:59:02,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:59:02 BoogieIcfgContainer [2022-09-16 11:59:02,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:59:02,676 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:59:02,676 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:59:02,678 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:59:02,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:59:01" (1/3) ... [2022-09-16 11:59:02,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d953455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:59:02, skipping insertion in model container [2022-09-16 11:59:02,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:59:02" (2/3) ... [2022-09-16 11:59:02,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d953455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:59:02, skipping insertion in model container [2022-09-16 11:59:02,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:59:02" (3/3) ... [2022-09-16 11:59:02,680 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-multiply-verify.wvr.c [2022-09-16 11:59:02,691 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:59:02,691 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-09-16 11:59:02,692 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:59:02,777 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-09-16 11:59:02,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 170 places, 169 transitions, 362 flow [2022-09-16 11:59:02,883 INFO L130 PetriNetUnfolder]: 9/166 cut-off events. [2022-09-16 11:59:02,883 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-09-16 11:59:02,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 166 events. 9/166 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 144 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 123. Up to 2 conditions per place. [2022-09-16 11:59:02,890 INFO L82 GeneralOperation]: Start removeDead. Operand has 170 places, 169 transitions, 362 flow [2022-09-16 11:59:02,897 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 145 transitions, 305 flow [2022-09-16 11:59:02,913 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:59:02,920 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;@323fe6f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:59:02,920 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-09-16 11:59:02,936 INFO L130 PetriNetUnfolder]: 3/70 cut-off events. [2022-09-16 11:59:02,937 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:59:02,937 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:59:02,937 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] [2022-09-16 11:59:02,938 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-09-16 11:59:02,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:59:02,947 INFO L85 PathProgramCache]: Analyzing trace with hash 2085078513, now seen corresponding path program 1 times [2022-09-16 11:59:02,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:59:02,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983165413] [2022-09-16 11:59:02,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:59:02,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:59:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:59:03,185 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 11:59:03,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:59:03,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983165413] [2022-09-16 11:59:03,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983165413] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:59:03,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:59:03,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:59:03,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672513652] [2022-09-16 11:59:03,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:59:03,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:59:03,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:59:03,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:59:03,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:59:03,268 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 169 [2022-09-16 11:59:03,271 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 145 transitions, 305 flow. Second operand has 4 states, 4 states have (on average 134.5) internal successors, (538), 4 states have internal predecessors, (538), 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 11:59:03,271 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:59:03,271 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 169 [2022-09-16 11:59:03,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:59:03,499 INFO L130 PetriNetUnfolder]: 189/824 cut-off events. [2022-09-16 11:59:03,499 INFO L131 PetriNetUnfolder]: For 146/146 co-relation queries the response was YES. [2022-09-16 11:59:03,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1279 conditions, 824 events. 189/824 cut-off events. For 146/146 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 5275 event pairs, 184 based on Foata normal form. 86/658 useless extension candidates. Maximal degree in co-relation 517. Up to 182 conditions per place. [2022-09-16 11:59:03,510 INFO L137 encePairwiseOnDemand]: 155/169 looper letters, 42 selfloop transitions, 4 changer transitions 2/158 dead transitions. [2022-09-16 11:59:03,510 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 158 transitions, 438 flow [2022-09-16 11:59:03,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:59:03,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:59:03,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 727 transitions. [2022-09-16 11:59:03,525 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8603550295857988 [2022-09-16 11:59:03,526 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 727 transitions. [2022-09-16 11:59:03,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 727 transitions. [2022-09-16 11:59:03,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:59:03,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 727 transitions. [2022-09-16 11:59:03,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 145.4) internal successors, (727), 5 states have internal predecessors, (727), 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 11:59:03,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 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 11:59:03,541 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 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 11:59:03,542 INFO L175 Difference]: Start difference. First operand has 147 places, 145 transitions, 305 flow. Second operand 5 states and 727 transitions. [2022-09-16 11:59:03,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 158 transitions, 438 flow [2022-09-16 11:59:03,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 158 transitions, 420 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-09-16 11:59:03,549 INFO L231 Difference]: Finished difference. Result has 146 places, 138 transitions, 306 flow [2022-09-16 11:59:03,551 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=306, PETRI_PLACES=146, PETRI_TRANSITIONS=138} [2022-09-16 11:59:03,555 INFO L287 CegarLoopForPetriNet]: 147 programPoint places, -1 predicate places. [2022-09-16 11:59:03,555 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 138 transitions, 306 flow [2022-09-16 11:59:03,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 134.5) internal successors, (538), 4 states have internal predecessors, (538), 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 11:59:03,556 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:59:03,556 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] [2022-09-16 11:59:03,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:59:03,556 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-09-16 11:59:03,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:59:03,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1979860196, now seen corresponding path program 1 times [2022-09-16 11:59:03,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:59:03,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915830942] [2022-09-16 11:59:03,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:59:03,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:59:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:59:03,667 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 11:59:03,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:59:03,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915830942] [2022-09-16 11:59:03,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915830942] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:59:03,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:59:03,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:59:03,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767593238] [2022-09-16 11:59:03,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:59:03,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:59:03,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:59:03,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:59:03,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:59:03,672 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 169 [2022-09-16 11:59:03,673 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 138 transitions, 306 flow. Second operand has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 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 11:59:03,675 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:59:03,675 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 169 [2022-09-16 11:59:03,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:59:03,818 INFO L130 PetriNetUnfolder]: 83/476 cut-off events. [2022-09-16 11:59:03,818 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2022-09-16 11:59:03,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 698 conditions, 476 events. 83/476 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2254 event pairs, 74 based on Foata normal form. 14/372 useless extension candidates. Maximal degree in co-relation 558. Up to 148 conditions per place. [2022-09-16 11:59:03,821 INFO L137 encePairwiseOnDemand]: 154/169 looper letters, 30 selfloop transitions, 8 changer transitions 0/147 dead transitions. [2022-09-16 11:59:03,821 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 147 transitions, 406 flow [2022-09-16 11:59:03,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 11:59:03,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-09-16 11:59:03,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1097 transitions. [2022-09-16 11:59:03,824 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8113905325443787 [2022-09-16 11:59:03,824 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1097 transitions. [2022-09-16 11:59:03,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1097 transitions. [2022-09-16 11:59:03,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:59:03,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1097 transitions. [2022-09-16 11:59:03,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 137.125) internal successors, (1097), 8 states have internal predecessors, (1097), 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 11:59:03,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 169.0) internal successors, (1521), 9 states have internal predecessors, (1521), 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 11:59:03,829 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 169.0) internal successors, (1521), 9 states have internal predecessors, (1521), 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 11:59:03,829 INFO L175 Difference]: Start difference. First operand has 146 places, 138 transitions, 306 flow. Second operand 8 states and 1097 transitions. [2022-09-16 11:59:03,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 147 transitions, 406 flow [2022-09-16 11:59:03,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 147 transitions, 404 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:59:03,833 INFO L231 Difference]: Finished difference. Result has 154 places, 140 transitions, 359 flow [2022-09-16 11:59:03,833 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=359, PETRI_PLACES=154, PETRI_TRANSITIONS=140} [2022-09-16 11:59:03,833 INFO L287 CegarLoopForPetriNet]: 147 programPoint places, 7 predicate places. [2022-09-16 11:59:03,834 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 140 transitions, 359 flow [2022-09-16 11:59:03,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 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 11:59:03,834 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:59:03,835 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:59:03,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:59:03,835 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-09-16 11:59:03,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:59:03,835 INFO L85 PathProgramCache]: Analyzing trace with hash -279829995, now seen corresponding path program 1 times [2022-09-16 11:59:03,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:59:03,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480456672] [2022-09-16 11:59:03,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:59:03,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:59:03,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:59:03,886 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:59:03,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:59:03,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480456672] [2022-09-16 11:59:03,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480456672] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:59:03,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107603] [2022-09-16 11:59:03,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:59:03,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:59:03,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:59:03,889 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 11:59:03,890 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 11:59:03,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:59:03,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 11:59:03,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:59:04,055 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:59:04,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:59:04,101 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:59:04,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107603] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:59:04,101 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:59:04,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-09-16 11:59:04,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377160399] [2022-09-16 11:59:04,102 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:59:04,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-09-16 11:59:04,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:59:04,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-09-16 11:59:04,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-09-16 11:59:04,105 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 169 [2022-09-16 11:59:04,107 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 140 transitions, 359 flow. Second operand has 12 states, 12 states have (on average 135.66666666666666) internal successors, (1628), 12 states have internal predecessors, (1628), 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 11:59:04,107 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:59:04,107 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 169 [2022-09-16 11:59:04,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:59:04,461 INFO L130 PetriNetUnfolder]: 323/1585 cut-off events. [2022-09-16 11:59:04,461 INFO L131 PetriNetUnfolder]: For 332/332 co-relation queries the response was YES. [2022-09-16 11:59:04,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3214 conditions, 1585 events. 323/1585 cut-off events. For 332/332 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 11973 event pairs, 312 based on Foata normal form. 3/1174 useless extension candidates. Maximal degree in co-relation 2827. Up to 437 conditions per place. [2022-09-16 11:59:04,475 INFO L137 encePairwiseOnDemand]: 162/169 looper letters, 84 selfloop transitions, 18 changer transitions 0/212 dead transitions. [2022-09-16 11:59:04,475 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 212 transitions, 835 flow [2022-09-16 11:59:04,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 11:59:04,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-09-16 11:59:04,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2499 transitions. [2022-09-16 11:59:04,480 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8214990138067061 [2022-09-16 11:59:04,480 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2499 transitions. [2022-09-16 11:59:04,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2499 transitions. [2022-09-16 11:59:04,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:59:04,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2499 transitions. [2022-09-16 11:59:04,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 138.83333333333334) internal successors, (2499), 18 states have internal predecessors, (2499), 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 11:59:04,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 169.0) internal successors, (3211), 19 states have internal predecessors, (3211), 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 11:59:04,490 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 169.0) internal successors, (3211), 19 states have internal predecessors, (3211), 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 11:59:04,491 INFO L175 Difference]: Start difference. First operand has 154 places, 140 transitions, 359 flow. Second operand 18 states and 2499 transitions. [2022-09-16 11:59:04,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 212 transitions, 835 flow [2022-09-16 11:59:04,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 212 transitions, 828 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-09-16 11:59:04,496 INFO L231 Difference]: Finished difference. Result has 172 places, 152 transitions, 458 flow [2022-09-16 11:59:04,496 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=458, PETRI_PLACES=172, PETRI_TRANSITIONS=152} [2022-09-16 11:59:04,497 INFO L287 CegarLoopForPetriNet]: 147 programPoint places, 25 predicate places. [2022-09-16 11:59:04,497 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 152 transitions, 458 flow [2022-09-16 11:59:04,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 135.66666666666666) internal successors, (1628), 12 states have internal predecessors, (1628), 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 11:59:04,498 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:59:04,498 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:59:04,518 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 11:59:04,718 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 11:59:04,718 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-09-16 11:59:04,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:59:04,719 INFO L85 PathProgramCache]: Analyzing trace with hash -84794798, now seen corresponding path program 1 times [2022-09-16 11:59:04,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:59:04,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399339996] [2022-09-16 11:59:04,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:59:04,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:59:04,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:59:04,792 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:59:04,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:59:04,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399339996] [2022-09-16 11:59:04,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399339996] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:59:04,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589627860] [2022-09-16 11:59:04,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:59:04,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:59:04,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:59:04,794 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 11:59:04,814 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 11:59:04,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:59:04,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 11:59:04,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:59:04,951 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:59:04,951 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:59:04,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589627860] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:59:04,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:59:04,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 11:59:04,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924520163] [2022-09-16 11:59:04,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:59:04,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:59:04,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:59:04,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:59:04,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 11:59:04,953 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 169 [2022-09-16 11:59:04,954 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 152 transitions, 458 flow. Second operand has 6 states, 6 states have (on average 135.33333333333334) internal successors, (812), 6 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:59:04,954 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:59:04,954 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 169 [2022-09-16 11:59:04,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:59:05,141 INFO L130 PetriNetUnfolder]: 323/1581 cut-off events. [2022-09-16 11:59:05,141 INFO L131 PetriNetUnfolder]: For 373/373 co-relation queries the response was YES. [2022-09-16 11:59:05,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3230 conditions, 1581 events. 323/1581 cut-off events. For 373/373 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 11911 event pairs, 312 based on Foata normal form. 4/1171 useless extension candidates. Maximal degree in co-relation 2838. Up to 636 conditions per place. [2022-09-16 11:59:05,152 INFO L137 encePairwiseOnDemand]: 164/169 looper letters, 34 selfloop transitions, 11 changer transitions 0/155 dead transitions. [2022-09-16 11:59:05,152 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 155 transitions, 541 flow [2022-09-16 11:59:05,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:59:05,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-09-16 11:59:05,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 968 transitions. [2022-09-16 11:59:05,155 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8182586644125106 [2022-09-16 11:59:05,155 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 968 transitions. [2022-09-16 11:59:05,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 968 transitions. [2022-09-16 11:59:05,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:59:05,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 968 transitions. [2022-09-16 11:59:05,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 138.28571428571428) internal successors, (968), 7 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:59:05,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 169.0) internal successors, (1352), 8 states have internal predecessors, (1352), 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 11:59:05,159 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 169.0) internal successors, (1352), 8 states have internal predecessors, (1352), 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 11:59:05,159 INFO L175 Difference]: Start difference. First operand has 172 places, 152 transitions, 458 flow. Second operand 7 states and 968 transitions. [2022-09-16 11:59:05,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 155 transitions, 541 flow [2022-09-16 11:59:05,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 155 transitions, 509 flow, removed 11 selfloop flow, removed 5 redundant places. [2022-09-16 11:59:05,162 INFO L231 Difference]: Finished difference. Result has 168 places, 148 transitions, 421 flow [2022-09-16 11:59:05,163 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=421, PETRI_PLACES=168, PETRI_TRANSITIONS=148} [2022-09-16 11:59:05,163 INFO L287 CegarLoopForPetriNet]: 147 programPoint places, 21 predicate places. [2022-09-16 11:59:05,163 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 148 transitions, 421 flow [2022-09-16 11:59:05,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.33333333333334) internal successors, (812), 6 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:59:05,164 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:59:05,164 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] [2022-09-16 11:59:05,182 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-09-16 11:59:05,382 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,SelfDestructingSolverStorable3 [2022-09-16 11:59:05,382 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-09-16 11:59:05,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:59:05,383 INFO L85 PathProgramCache]: Analyzing trace with hash -883104476, now seen corresponding path program 1 times [2022-09-16 11:59:05,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:59:05,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616025796] [2022-09-16 11:59:05,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:59:05,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:59:05,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:59:05,488 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 11:59:05,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:59:05,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616025796] [2022-09-16 11:59:05,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616025796] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:59:05,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:59:05,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-16 11:59:05,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245896285] [2022-09-16 11:59:05,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:59:05,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-16 11:59:05,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:59:05,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-16 11:59:05,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-09-16 11:59:05,491 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 169 [2022-09-16 11:59:05,492 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 148 transitions, 421 flow. Second operand has 8 states, 8 states have (on average 124.375) internal successors, (995), 8 states have internal predecessors, (995), 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 11:59:05,492 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:59:05,492 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 169 [2022-09-16 11:59:05,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:59:05,734 INFO L130 PetriNetUnfolder]: 307/1512 cut-off events. [2022-09-16 11:59:05,734 INFO L131 PetriNetUnfolder]: For 333/333 co-relation queries the response was YES. [2022-09-16 11:59:05,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2963 conditions, 1512 events. 307/1512 cut-off events. For 333/333 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 11134 event pairs, 296 based on Foata normal form. 53/1159 useless extension candidates. Maximal degree in co-relation 2809. Up to 571 conditions per place. [2022-09-16 11:59:05,745 INFO L137 encePairwiseOnDemand]: 161/169 looper letters, 21 selfloop transitions, 7 changer transitions 1/146 dead transitions. [2022-09-16 11:59:05,746 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 146 transitions, 469 flow [2022-09-16 11:59:05,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 11:59:05,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-09-16 11:59:05,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1005 transitions. [2022-09-16 11:59:05,748 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7433431952662722 [2022-09-16 11:59:05,748 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1005 transitions. [2022-09-16 11:59:05,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1005 transitions. [2022-09-16 11:59:05,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:59:05,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1005 transitions. [2022-09-16 11:59:05,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 125.625) internal successors, (1005), 8 states have internal predecessors, (1005), 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 11:59:05,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 169.0) internal successors, (1521), 9 states have internal predecessors, (1521), 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 11:59:05,752 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 169.0) internal successors, (1521), 9 states have internal predecessors, (1521), 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 11:59:05,752 INFO L175 Difference]: Start difference. First operand has 168 places, 148 transitions, 421 flow. Second operand 8 states and 1005 transitions. [2022-09-16 11:59:05,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 146 transitions, 469 flow [2022-09-16 11:59:05,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 146 transitions, 441 flow, removed 4 selfloop flow, removed 8 redundant places. [2022-09-16 11:59:05,756 INFO L231 Difference]: Finished difference. Result has 165 places, 145 transitions, 391 flow [2022-09-16 11:59:05,757 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=383, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=391, PETRI_PLACES=165, PETRI_TRANSITIONS=145} [2022-09-16 11:59:05,759 INFO L287 CegarLoopForPetriNet]: 147 programPoint places, 18 predicate places. [2022-09-16 11:59:05,759 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 145 transitions, 391 flow [2022-09-16 11:59:05,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 124.375) internal successors, (995), 8 states have internal predecessors, (995), 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 11:59:05,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:59:05,759 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] [2022-09-16 11:59:05,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:59:05,760 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-09-16 11:59:05,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:59:05,760 INFO L85 PathProgramCache]: Analyzing trace with hash -997477568, now seen corresponding path program 1 times [2022-09-16 11:59:05,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:59:05,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763720315] [2022-09-16 11:59:05,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:59:05,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:59:05,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:59:05,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:59:05,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:59:05,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763720315] [2022-09-16 11:59:05,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763720315] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:59:05,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329791626] [2022-09-16 11:59:05,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:59:05,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:59:05,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:59:05,872 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:59:05,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-09-16 11:59:05,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:59:05,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 11:59:05,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:59:05,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:59:05,999 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:59:05,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329791626] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:59:05,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:59:05,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2022-09-16 11:59:05,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497823284] [2022-09-16 11:59:06,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:59:06,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:59:06,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:59:06,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:59:06,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-09-16 11:59:06,002 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 169 [2022-09-16 11:59:06,002 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 145 transitions, 391 flow. Second operand has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 11:59:06,002 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:59:06,002 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 169 [2022-09-16 11:59:06,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:59:06,077 INFO L130 PetriNetUnfolder]: 69/779 cut-off events. [2022-09-16 11:59:06,078 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2022-09-16 11:59:06,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1114 conditions, 779 events. 69/779 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 4428 event pairs, 60 based on Foata normal form. 0/695 useless extension candidates. Maximal degree in co-relation 1048. Up to 144 conditions per place. [2022-09-16 11:59:06,082 INFO L137 encePairwiseOnDemand]: 162/169 looper letters, 11 selfloop transitions, 3 changer transitions 0/141 dead transitions. [2022-09-16 11:59:06,082 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 141 transitions, 403 flow [2022-09-16 11:59:06,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:59:06,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:59:06,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 574 transitions. [2022-09-16 11:59:06,086 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.849112426035503 [2022-09-16 11:59:06,086 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 574 transitions. [2022-09-16 11:59:06,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 574 transitions. [2022-09-16 11:59:06,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:59:06,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 574 transitions. [2022-09-16 11:59:06,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 143.5) internal successors, (574), 4 states have internal predecessors, (574), 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 11:59:06,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 169.0) internal successors, (845), 5 states have internal predecessors, (845), 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 11:59:06,089 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 169.0) internal successors, (845), 5 states have internal predecessors, (845), 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 11:59:06,089 INFO L175 Difference]: Start difference. First operand has 165 places, 145 transitions, 391 flow. Second operand 4 states and 574 transitions. [2022-09-16 11:59:06,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 141 transitions, 403 flow [2022-09-16 11:59:06,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 141 transitions, 388 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-09-16 11:59:06,091 INFO L231 Difference]: Finished difference. Result has 156 places, 141 transitions, 366 flow [2022-09-16 11:59:06,092 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=366, PETRI_PLACES=156, PETRI_TRANSITIONS=141} [2022-09-16 11:59:06,093 INFO L287 CegarLoopForPetriNet]: 147 programPoint places, 9 predicate places. [2022-09-16 11:59:06,093 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 141 transitions, 366 flow [2022-09-16 11:59:06,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 11:59:06,094 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:59:06,094 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] [2022-09-16 11:59:06,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-09-16 11:59:06,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:59:06,312 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-09-16 11:59:06,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:59:06,312 INFO L85 PathProgramCache]: Analyzing trace with hash 809159204, now seen corresponding path program 1 times [2022-09-16 11:59:06,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:59:06,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654743734] [2022-09-16 11:59:06,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:59:06,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:59:06,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:59:06,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:59:06,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:59:06,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654743734] [2022-09-16 11:59:06,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654743734] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:59:06,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:59:06,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:59:06,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031298434] [2022-09-16 11:59:06,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:59:06,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:59:06,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:59:06,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:59:06,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:59:06,355 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 169 [2022-09-16 11:59:06,355 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 141 transitions, 366 flow. Second operand has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 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 11:59:06,355 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:59:06,355 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 169 [2022-09-16 11:59:06,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:59:06,473 INFO L130 PetriNetUnfolder]: 229/911 cut-off events. [2022-09-16 11:59:06,473 INFO L131 PetriNetUnfolder]: For 234/234 co-relation queries the response was YES. [2022-09-16 11:59:06,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1639 conditions, 911 events. 229/911 cut-off events. For 234/234 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 5491 event pairs, 28 based on Foata normal form. 0/863 useless extension candidates. Maximal degree in co-relation 1596. Up to 361 conditions per place. [2022-09-16 11:59:06,479 INFO L137 encePairwiseOnDemand]: 165/169 looper letters, 17 selfloop transitions, 3 changer transitions 0/144 dead transitions. [2022-09-16 11:59:06,479 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 144 transitions, 418 flow [2022-09-16 11:59:06,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:59:06,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:59:06,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 429 transitions. [2022-09-16 11:59:06,481 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8461538461538461 [2022-09-16 11:59:06,481 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 429 transitions. [2022-09-16 11:59:06,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 429 transitions. [2022-09-16 11:59:06,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:59:06,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 429 transitions. [2022-09-16 11:59:06,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:59:06,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 169.0) internal successors, (676), 4 states have internal predecessors, (676), 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 11:59:06,486 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 169.0) internal successors, (676), 4 states have internal predecessors, (676), 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 11:59:06,486 INFO L175 Difference]: Start difference. First operand has 156 places, 141 transitions, 366 flow. Second operand 3 states and 429 transitions. [2022-09-16 11:59:06,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 144 transitions, 418 flow [2022-09-16 11:59:06,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 144 transitions, 412 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-09-16 11:59:06,489 INFO L231 Difference]: Finished difference. Result has 154 places, 140 transitions, 364 flow [2022-09-16 11:59:06,489 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=364, PETRI_PLACES=154, PETRI_TRANSITIONS=140} [2022-09-16 11:59:06,491 INFO L287 CegarLoopForPetriNet]: 147 programPoint places, 7 predicate places. [2022-09-16 11:59:06,491 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 140 transitions, 364 flow [2022-09-16 11:59:06,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 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 11:59:06,491 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:59:06,491 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] [2022-09-16 11:59:06,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 11:59:06,491 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-09-16 11:59:06,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:59:06,492 INFO L85 PathProgramCache]: Analyzing trace with hash -685867831, now seen corresponding path program 1 times [2022-09-16 11:59:06,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:59:06,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496125181] [2022-09-16 11:59:06,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:59:06,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:59:06,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:59:06,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:59:06,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:59:06,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496125181] [2022-09-16 11:59:06,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496125181] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:59:06,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:59:06,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:59:06,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381006889] [2022-09-16 11:59:06,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:59:06,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:59:06,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:59:06,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:59:06,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:59:06,550 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 169 [2022-09-16 11:59:06,551 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 140 transitions, 364 flow. Second operand has 4 states, 4 states have (on average 136.25) internal successors, (545), 4 states have internal predecessors, (545), 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 11:59:06,551 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:59:06,551 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 169 [2022-09-16 11:59:06,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:59:06,640 INFO L130 PetriNetUnfolder]: 197/851 cut-off events. [2022-09-16 11:59:06,641 INFO L131 PetriNetUnfolder]: For 239/239 co-relation queries the response was YES. [2022-09-16 11:59:06,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1529 conditions, 851 events. 197/851 cut-off events. For 239/239 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 5026 event pairs, 188 based on Foata normal form. 0/823 useless extension candidates. Maximal degree in co-relation 1467. Up to 384 conditions per place. [2022-09-16 11:59:06,644 INFO L137 encePairwiseOnDemand]: 165/169 looper letters, 3 selfloop transitions, 3 changer transitions 63/139 dead transitions. [2022-09-16 11:59:06,644 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 139 transitions, 398 flow [2022-09-16 11:59:06,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:59:06,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:59:06,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 551 transitions. [2022-09-16 11:59:06,646 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8150887573964497 [2022-09-16 11:59:06,646 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 551 transitions. [2022-09-16 11:59:06,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 551 transitions. [2022-09-16 11:59:06,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:59:06,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 551 transitions. [2022-09-16 11:59:06,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 137.75) internal successors, (551), 4 states have internal predecessors, (551), 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 11:59:06,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 169.0) internal successors, (845), 5 states have internal predecessors, (845), 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 11:59:06,648 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 169.0) internal successors, (845), 5 states have internal predecessors, (845), 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 11:59:06,648 INFO L175 Difference]: Start difference. First operand has 154 places, 140 transitions, 364 flow. Second operand 4 states and 551 transitions. [2022-09-16 11:59:06,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 139 transitions, 398 flow [2022-09-16 11:59:06,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 139 transitions, 392 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:59:06,650 INFO L231 Difference]: Finished difference. Result has 154 places, 76 transitions, 222 flow [2022-09-16 11:59:06,651 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=222, PETRI_PLACES=154, PETRI_TRANSITIONS=76} [2022-09-16 11:59:06,653 INFO L287 CegarLoopForPetriNet]: 147 programPoint places, 7 predicate places. [2022-09-16 11:59:06,653 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 76 transitions, 222 flow [2022-09-16 11:59:06,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 136.25) internal successors, (545), 4 states have internal predecessors, (545), 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 11:59:06,653 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:59:06,655 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:59:06,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-16 11:59:06,655 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2022-09-16 11:59:06,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:59:06,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1528465679, now seen corresponding path program 2 times [2022-09-16 11:59:06,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:59:06,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745798228] [2022-09-16 11:59:06,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:59:06,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:59:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:59:06,762 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:59:06,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:59:06,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745798228] [2022-09-16 11:59:06,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745798228] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:59:06,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332851927] [2022-09-16 11:59:06,762 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 11:59:06,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:59:06,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:59:06,766 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:59:06,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-09-16 11:59:06,836 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 11:59:06,836 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 11:59:06,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 7 conjunts are in the unsatisfiable core [2022-09-16 11:59:06,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:59:06,955 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-09-16 11:59:06,955 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:59:07,070 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-09-16 11:59:07,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332851927] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:59:07,070 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:59:07,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2022-09-16 11:59:07,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166784381] [2022-09-16 11:59:07,071 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:59:07,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 11:59:07,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:59:07,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 11:59:07,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-09-16 11:59:07,073 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 169 [2022-09-16 11:59:07,075 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 76 transitions, 222 flow. Second operand has 18 states, 18 states have (on average 126.61111111111111) internal successors, (2279), 18 states have internal predecessors, (2279), 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 11:59:07,075 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:59:07,075 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 169 [2022-09-16 11:59:07,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:59:07,465 INFO L130 PetriNetUnfolder]: 1/109 cut-off events. [2022-09-16 11:59:07,466 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-09-16 11:59:07,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 109 events. 1/109 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 2/111 useless extension candidates. Maximal degree in co-relation 207. Up to 7 conditions per place. [2022-09-16 11:59:07,466 INFO L137 encePairwiseOnDemand]: 158/169 looper letters, 0 selfloop transitions, 0 changer transitions 99/99 dead transitions. [2022-09-16 11:59:07,466 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 99 transitions, 392 flow [2022-09-16 11:59:07,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-09-16 11:59:07,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-09-16 11:59:07,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3009 transitions. [2022-09-16 11:59:07,473 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7418639053254438 [2022-09-16 11:59:07,473 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3009 transitions. [2022-09-16 11:59:07,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3009 transitions. [2022-09-16 11:59:07,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:59:07,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3009 transitions. [2022-09-16 11:59:07,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 125.375) internal successors, (3009), 24 states have internal predecessors, (3009), 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 11:59:07,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 169.0) internal successors, (4225), 25 states have internal predecessors, (4225), 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 11:59:07,486 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 169.0) internal successors, (4225), 25 states have internal predecessors, (4225), 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 11:59:07,486 INFO L175 Difference]: Start difference. First operand has 154 places, 76 transitions, 222 flow. Second operand 24 states and 3009 transitions. [2022-09-16 11:59:07,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 99 transitions, 392 flow [2022-09-16 11:59:07,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 99 transitions, 376 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-09-16 11:59:07,488 INFO L231 Difference]: Finished difference. Result has 103 places, 0 transitions, 0 flow [2022-09-16 11:59:07,488 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=0, PETRI_PLACES=103, PETRI_TRANSITIONS=0} [2022-09-16 11:59:07,488 INFO L287 CegarLoopForPetriNet]: 147 programPoint places, -44 predicate places. [2022-09-16 11:59:07,489 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 0 transitions, 0 flow [2022-09-16 11:59:07,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 126.61111111111111) internal successors, (2279), 18 states have internal predecessors, (2279), 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 11:59:07,492 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 25 remaining) [2022-09-16 11:59:07,492 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 25 remaining) [2022-09-16 11:59:07,492 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 25 remaining) [2022-09-16 11:59:07,492 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 25 remaining) [2022-09-16 11:59:07,492 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 25 remaining) [2022-09-16 11:59:07,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 25 remaining) [2022-09-16 11:59:07,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 25 remaining) [2022-09-16 11:59:07,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 25 remaining) [2022-09-16 11:59:07,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 25 remaining) [2022-09-16 11:59:07,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 25 remaining) [2022-09-16 11:59:07,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 25 remaining) [2022-09-16 11:59:07,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 25 remaining) [2022-09-16 11:59:07,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 25 remaining) [2022-09-16 11:59:07,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 25 remaining) [2022-09-16 11:59:07,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 25 remaining) [2022-09-16 11:59:07,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 25 remaining) [2022-09-16 11:59:07,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 25 remaining) [2022-09-16 11:59:07,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 25 remaining) [2022-09-16 11:59:07,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 25 remaining) [2022-09-16 11:59:07,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 25 remaining) [2022-09-16 11:59:07,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 25 remaining) [2022-09-16 11:59:07,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 25 remaining) [2022-09-16 11:59:07,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 25 remaining) [2022-09-16 11:59:07,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 25 remaining) [2022-09-16 11:59:07,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 25 remaining) [2022-09-16 11:59:07,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-09-16 11:59:07,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:59:07,718 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:59:07,722 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:59:07,722 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:59:07,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:59:07 BasicIcfg [2022-09-16 11:59:07,725 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:59:07,726 INFO L158 Benchmark]: Toolchain (without parser) took 5887.83ms. Allocated memory was 205.5MB in the beginning and 300.9MB in the end (delta: 95.4MB). Free memory was 178.8MB in the beginning and 230.1MB in the end (delta: -51.3MB). Peak memory consumption was 44.3MB. Max. memory is 8.0GB. [2022-09-16 11:59:07,726 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 205.5MB. Free memory is still 161.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:59:07,726 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.72ms. Allocated memory was 205.5MB in the beginning and 250.6MB in the end (delta: 45.1MB). Free memory was 178.5MB in the beginning and 219.3MB in the end (delta: -40.8MB). Peak memory consumption was 9.7MB. Max. memory is 8.0GB. [2022-09-16 11:59:07,726 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.27ms. Allocated memory is still 250.6MB. Free memory was 219.3MB in the beginning and 217.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:59:07,726 INFO L158 Benchmark]: Boogie Preprocessor took 30.20ms. Allocated memory is still 250.6MB. Free memory was 217.2MB in the beginning and 215.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:59:07,727 INFO L158 Benchmark]: RCFGBuilder took 492.18ms. Allocated memory is still 250.6MB. Free memory was 215.6MB in the beginning and 182.6MB in the end (delta: 33.0MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. [2022-09-16 11:59:07,727 INFO L158 Benchmark]: TraceAbstraction took 5049.46ms. Allocated memory was 250.6MB in the beginning and 300.9MB in the end (delta: 50.3MB). Free memory was 182.0MB in the beginning and 230.1MB in the end (delta: -48.1MB). Peak memory consumption was 3.2MB. Max. memory is 8.0GB. [2022-09-16 11:59:07,728 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 205.5MB. Free memory is still 161.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 261.72ms. Allocated memory was 205.5MB in the beginning and 250.6MB in the end (delta: 45.1MB). Free memory was 178.5MB in the beginning and 219.3MB in the end (delta: -40.8MB). Peak memory consumption was 9.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.27ms. Allocated memory is still 250.6MB. Free memory was 219.3MB in the beginning and 217.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.20ms. Allocated memory is still 250.6MB. Free memory was 217.2MB in the beginning and 215.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 492.18ms. Allocated memory is still 250.6MB. Free memory was 215.6MB in the beginning and 182.6MB in the end (delta: 33.0MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. * TraceAbstraction took 5049.46ms. Allocated memory was 250.6MB in the beginning and 300.9MB in the end (delta: 50.3MB). Free memory was 182.0MB in the beginning and 230.1MB in the end (delta: -48.1MB). Peak memory consumption was 3.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 75]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 75]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 120]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 120]: 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 7 procedures, 207 locations, 25 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: 4.9s, OverallIterations: 9, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 507 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 507 mSDsluCounter, 113 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 241 mSDsCounter, 85 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 648 IncrementalHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 85 mSolverCounterUnsat, 45 mSDtfsCounter, 648 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 565 GetRequests, 460 SyntacticMatches, 5 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=458occurred in iteration=3, InterpolantAutomatonStates: 81, 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, 1.0s InterpolantComputationTime, 1006 NumberOfCodeBlocks, 970 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1156 ConstructedInterpolants, 0 QuantifiedInterpolants, 2397 SizeOfPredicates, 13 NumberOfNonLiveVariables, 672 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 126/270 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 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:59:07,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...