/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-FA-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/parallel-ticket-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:55:42,188 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:55:42,190 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:55:42,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:55:42,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:55:42,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:55:42,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:55:42,243 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:55:42,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:55:42,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:55:42,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:55:42,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:55:42,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:55:42,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:55:42,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:55:42,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:55:42,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:55:42,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:55:42,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:55:42,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:55:42,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:55:42,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:55:42,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:55:42,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:55:42,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 10:55:42,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:55:42,289 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:55:42,289 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:55:42,290 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-FA-NoLbe.epf [2022-09-16 10:55:42,323 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:55:42,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:55:42,324 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:55:42,324 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:55:42,325 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:55:42,325 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:55:42,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:55:42,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:55:42,326 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:55:42,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:55:42,326 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:55:42,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:55:42,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:55:42,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:55:42,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:55:42,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:55:42,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:55:42,328 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:55:42,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:55:42,328 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:55:42,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:55:42,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:55:42,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:55:42,329 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:55:42,329 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:55:42,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:55:42,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:55:42,330 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:55:42,330 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:55:42,330 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:55:42,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:55:42,330 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:55:42,331 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:55:42,331 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:55:42,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:55:42,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:55:42,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:55:42,622 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:55:42,622 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:55:42,624 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c [2022-09-16 10:55:42,683 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/146d28135/6d6a61d55396404b9f00fe9b385f6ebe/FLAG108e13318 [2022-09-16 10:55:43,052 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:55:43,052 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c [2022-09-16 10:55:43,060 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/146d28135/6d6a61d55396404b9f00fe9b385f6ebe/FLAG108e13318 [2022-09-16 10:55:43,071 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/146d28135/6d6a61d55396404b9f00fe9b385f6ebe [2022-09-16 10:55:43,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:55:43,074 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:55:43,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:55:43,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:55:43,079 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:55:43,079 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:55:43" (1/1) ... [2022-09-16 10:55:43,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@279362e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:55:43, skipping insertion in model container [2022-09-16 10:55:43,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:55:43" (1/1) ... [2022-09-16 10:55:43,086 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:55:43,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:55:43,283 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/parallel-ticket-3.wvr.c[3089,3102] [2022-09-16 10:55:43,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:55:43,292 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:55:43,318 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/parallel-ticket-3.wvr.c[3089,3102] [2022-09-16 10:55:43,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:55:43,331 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:55:43,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:55:43 WrapperNode [2022-09-16 10:55:43,331 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:55:43,332 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:55:43,332 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:55:43,332 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:55:43,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:55:43" (1/1) ... [2022-09-16 10:55:43,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:55:43" (1/1) ... [2022-09-16 10:55:43,367 INFO L138 Inliner]: procedures = 22, calls = 55, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 170 [2022-09-16 10:55:43,368 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:55:43,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:55:43,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:55:43,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:55:43,376 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:55:43" (1/1) ... [2022-09-16 10:55:43,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:55:43" (1/1) ... [2022-09-16 10:55:43,379 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:55:43" (1/1) ... [2022-09-16 10:55:43,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:55:43" (1/1) ... [2022-09-16 10:55:43,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:55:43" (1/1) ... [2022-09-16 10:55:43,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:55:43" (1/1) ... [2022-09-16 10:55:43,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:55:43" (1/1) ... [2022-09-16 10:55:43,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:55:43,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:55:43,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:55:43,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:55:43,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:55:43" (1/1) ... [2022-09-16 10:55:43,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:55:43,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:55:43,436 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 10:55:43,441 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 10:55:43,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:55:43,468 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-16 10:55:43,468 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-16 10:55:43,468 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-16 10:55:43,468 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-16 10:55:43,468 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-16 10:55:43,468 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-16 10:55:43,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:55:43,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:55:43,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:55:43,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 10:55:43,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 10:55:43,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:55:43,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:55:43,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 10:55:43,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:55:43,470 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 10:55:43,539 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:55:43,540 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:55:43,753 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:55:43,920 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:55:43,920 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 10:55:43,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:55:43 BoogieIcfgContainer [2022-09-16 10:55:43,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:55:43,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:55:43,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:55:43,928 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:55:43,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:55:43" (1/3) ... [2022-09-16 10:55:43,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69095fcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:55:43, skipping insertion in model container [2022-09-16 10:55:43,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:55:43" (2/3) ... [2022-09-16 10:55:43,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69095fcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:55:43, skipping insertion in model container [2022-09-16 10:55:43,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:55:43" (3/3) ... [2022-09-16 10:55:43,932 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2022-09-16 10:55:43,940 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:55:43,950 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:55:43,950 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-09-16 10:55:43,950 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:55:44,064 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-09-16 10:55:44,103 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 138 places, 130 transitions, 284 flow [2022-09-16 10:55:44,393 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6977 states, 6853 states have (on average 3.39296658397782) internal successors, (23252), 6976 states have internal predecessors, (23252), 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 10:55:44,418 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:55:44,426 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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;@2be6b687, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:55:44,427 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2022-09-16 10:55:44,462 INFO L276 IsEmpty]: Start isEmpty. Operand has 6977 states, 6853 states have (on average 3.39296658397782) internal successors, (23252), 6976 states have internal predecessors, (23252), 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 10:55:44,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-09-16 10:55:44,470 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:55:44,471 INFO L195 NwaCegarLoop]: 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] [2022-09-16 10:55:44,473 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-09-16 10:55:44,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:55:44,479 INFO L85 PathProgramCache]: Analyzing trace with hash 752606577, now seen corresponding path program 1 times [2022-09-16 10:55:44,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:55:44,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256662954] [2022-09-16 10:55:44,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:55:44,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:55:44,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:55:44,908 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 10:55:44,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:55:44,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256662954] [2022-09-16 10:55:44,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256662954] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:55:44,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:55:44,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 10:55:44,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111557008] [2022-09-16 10:55:44,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:55:44,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:55:44,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:55:44,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:55:44,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:55:44,962 INFO L87 Difference]: Start difference. First operand has 6977 states, 6853 states have (on average 3.39296658397782) internal successors, (23252), 6976 states have internal predecessors, (23252), 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) Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 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 10:55:45,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:55:45,209 INFO L93 Difference]: Finished difference Result 8365 states and 26479 transitions. [2022-09-16 10:55:45,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:55:45,213 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 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) Word has length 53 [2022-09-16 10:55:45,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:55:45,370 INFO L225 Difference]: With dead ends: 8365 [2022-09-16 10:55:45,370 INFO L226 Difference]: Without dead ends: 8364 [2022-09-16 10:55:45,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:55:45,378 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 151 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:55:45,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 182 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:55:45,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8364 states. [2022-09-16 10:55:45,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8364 to 7172. [2022-09-16 10:55:45,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7172 states, 7055 states have (on average 3.373352232459249) internal successors, (23799), 7171 states have internal predecessors, (23799), 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 10:55:45,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7172 states to 7172 states and 23799 transitions. [2022-09-16 10:55:45,858 INFO L78 Accepts]: Start accepts. Automaton has 7172 states and 23799 transitions. Word has length 53 [2022-09-16 10:55:45,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:55:45,860 INFO L495 AbstractCegarLoop]: Abstraction has 7172 states and 23799 transitions. [2022-09-16 10:55:45,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 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 10:55:45,862 INFO L276 IsEmpty]: Start isEmpty. Operand 7172 states and 23799 transitions. [2022-09-16 10:55:45,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-09-16 10:55:45,863 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:55:45,864 INFO L195 NwaCegarLoop]: 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] [2022-09-16 10:55:45,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:55:45,865 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-09-16 10:55:45,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:55:45,866 INFO L85 PathProgramCache]: Analyzing trace with hash 752606578, now seen corresponding path program 1 times [2022-09-16 10:55:45,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:55:45,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045632493] [2022-09-16 10:55:45,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:55:45,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:55:45,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:55:45,949 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 10:55:45,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:55:45,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045632493] [2022-09-16 10:55:45,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045632493] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:55:45,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:55:45,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:55:45,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069041595] [2022-09-16 10:55:45,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:55:45,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:55:45,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:55:45,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:55:45,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:55:45,953 INFO L87 Difference]: Start difference. First operand 7172 states and 23799 transitions. Second operand has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 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 10:55:46,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:55:46,117 INFO L93 Difference]: Finished difference Result 5312 states and 17474 transitions. [2022-09-16 10:55:46,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:55:46,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 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) Word has length 53 [2022-09-16 10:55:46,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:55:46,165 INFO L225 Difference]: With dead ends: 5312 [2022-09-16 10:55:46,165 INFO L226 Difference]: Without dead ends: 5312 [2022-09-16 10:55:46,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:55:46,171 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 68 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:55:46,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 161 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:55:46,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5312 states. [2022-09-16 10:55:46,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5312 to 5312. [2022-09-16 10:55:46,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5312 states, 5250 states have (on average 3.3283809523809524) internal successors, (17474), 5311 states have internal predecessors, (17474), 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 10:55:46,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5312 states to 5312 states and 17474 transitions. [2022-09-16 10:55:46,439 INFO L78 Accepts]: Start accepts. Automaton has 5312 states and 17474 transitions. Word has length 53 [2022-09-16 10:55:46,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:55:46,439 INFO L495 AbstractCegarLoop]: Abstraction has 5312 states and 17474 transitions. [2022-09-16 10:55:46,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 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 10:55:46,440 INFO L276 IsEmpty]: Start isEmpty. Operand 5312 states and 17474 transitions. [2022-09-16 10:55:46,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-09-16 10:55:46,441 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:55:46,441 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:55:46,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 10:55:46,442 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-09-16 10:55:46,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:55:46,442 INFO L85 PathProgramCache]: Analyzing trace with hash 2024874357, now seen corresponding path program 1 times [2022-09-16 10:55:46,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:55:46,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005439493] [2022-09-16 10:55:46,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:55:46,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:55:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:55:46,565 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 10:55:46,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:55:46,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005439493] [2022-09-16 10:55:46,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005439493] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:55:46,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:55:46,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 10:55:46,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895728274] [2022-09-16 10:55:46,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:55:46,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:55:46,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:55:46,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:55:46,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:55:46,569 INFO L87 Difference]: Start difference. First operand 5312 states and 17474 transitions. Second operand has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 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 10:55:46,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:55:46,714 INFO L93 Difference]: Finished difference Result 5358 states and 16656 transitions. [2022-09-16 10:55:46,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:55:46,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 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) Word has length 57 [2022-09-16 10:55:46,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:55:46,753 INFO L225 Difference]: With dead ends: 5358 [2022-09-16 10:55:46,753 INFO L226 Difference]: Without dead ends: 5358 [2022-09-16 10:55:46,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:55:46,760 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 80 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:55:46,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 231 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:55:46,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5358 states. [2022-09-16 10:55:46,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5358 to 5034. [2022-09-16 10:55:46,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5034 states, 4991 states have (on average 3.2314165497896212) internal successors, (16128), 5033 states have internal predecessors, (16128), 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 10:55:46,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5034 states to 5034 states and 16128 transitions. [2022-09-16 10:55:46,991 INFO L78 Accepts]: Start accepts. Automaton has 5034 states and 16128 transitions. Word has length 57 [2022-09-16 10:55:46,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:55:46,992 INFO L495 AbstractCegarLoop]: Abstraction has 5034 states and 16128 transitions. [2022-09-16 10:55:46,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 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 10:55:46,992 INFO L276 IsEmpty]: Start isEmpty. Operand 5034 states and 16128 transitions. [2022-09-16 10:55:46,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-09-16 10:55:46,994 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:55:46,995 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:55:46,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 10:55:46,995 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-09-16 10:55:46,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:55:46,996 INFO L85 PathProgramCache]: Analyzing trace with hash 2024874358, now seen corresponding path program 1 times [2022-09-16 10:55:46,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:55:46,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126892605] [2022-09-16 10:55:46,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:55:46,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:55:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:55:47,086 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 10:55:47,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:55:47,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126892605] [2022-09-16 10:55:47,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126892605] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:55:47,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:55:47,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:55:47,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758766428] [2022-09-16 10:55:47,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:55:47,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:55:47,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:55:47,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:55:47,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:55:47,088 INFO L87 Difference]: Start difference. First operand 5034 states and 16128 transitions. Second operand has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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 10:55:47,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:55:47,164 INFO L93 Difference]: Finished difference Result 3480 states and 11071 transitions. [2022-09-16 10:55:47,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:55:47,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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) Word has length 57 [2022-09-16 10:55:47,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:55:47,181 INFO L225 Difference]: With dead ends: 3480 [2022-09-16 10:55:47,182 INFO L226 Difference]: Without dead ends: 3480 [2022-09-16 10:55:47,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:55:47,187 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 59 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:55:47,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 160 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:55:47,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3480 states. [2022-09-16 10:55:47,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3480 to 3480. [2022-09-16 10:55:47,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3480 states, 3462 states have (on average 3.1978625072212594) internal successors, (11071), 3479 states have internal predecessors, (11071), 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 10:55:47,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3480 states to 3480 states and 11071 transitions. [2022-09-16 10:55:47,335 INFO L78 Accepts]: Start accepts. Automaton has 3480 states and 11071 transitions. Word has length 57 [2022-09-16 10:55:47,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:55:47,335 INFO L495 AbstractCegarLoop]: Abstraction has 3480 states and 11071 transitions. [2022-09-16 10:55:47,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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 10:55:47,336 INFO L276 IsEmpty]: Start isEmpty. Operand 3480 states and 11071 transitions. [2022-09-16 10:55:47,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-09-16 10:55:47,337 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:55:47,337 INFO L195 NwaCegarLoop]: 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 10:55:47,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 10:55:47,337 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-09-16 10:55:47,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:55:47,338 INFO L85 PathProgramCache]: Analyzing trace with hash -587433299, now seen corresponding path program 1 times [2022-09-16 10:55:47,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:55:47,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314699620] [2022-09-16 10:55:47,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:55:47,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:55:47,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:55:47,410 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 10:55:47,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:55:47,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314699620] [2022-09-16 10:55:47,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314699620] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:55:47,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:55:47,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:55:47,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225209813] [2022-09-16 10:55:47,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:55:47,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:55:47,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:55:47,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:55:47,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:55:47,413 INFO L87 Difference]: Start difference. First operand 3480 states and 11071 transitions. Second operand has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 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 10:55:47,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:55:47,515 INFO L93 Difference]: Finished difference Result 3165 states and 10003 transitions. [2022-09-16 10:55:47,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 10:55:47,516 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 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) Word has length 60 [2022-09-16 10:55:47,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:55:47,531 INFO L225 Difference]: With dead ends: 3165 [2022-09-16 10:55:47,531 INFO L226 Difference]: Without dead ends: 3165 [2022-09-16 10:55:47,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-09-16 10:55:47,534 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 83 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:55:47,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 257 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:55:47,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3165 states. [2022-09-16 10:55:47,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3165 to 3165. [2022-09-16 10:55:47,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3165 states, 3150 states have (on average 3.1755555555555555) internal successors, (10003), 3164 states have internal predecessors, (10003), 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 10:55:47,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3165 states to 3165 states and 10003 transitions. [2022-09-16 10:55:47,680 INFO L78 Accepts]: Start accepts. Automaton has 3165 states and 10003 transitions. Word has length 60 [2022-09-16 10:55:47,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:55:47,681 INFO L495 AbstractCegarLoop]: Abstraction has 3165 states and 10003 transitions. [2022-09-16 10:55:47,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 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 10:55:47,681 INFO L276 IsEmpty]: Start isEmpty. Operand 3165 states and 10003 transitions. [2022-09-16 10:55:47,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-09-16 10:55:47,686 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:55:47,687 INFO L195 NwaCegarLoop]: 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] [2022-09-16 10:55:47,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 10:55:47,687 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-09-16 10:55:47,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:55:47,688 INFO L85 PathProgramCache]: Analyzing trace with hash 70935941, now seen corresponding path program 1 times [2022-09-16 10:55:47,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:55:47,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310959788] [2022-09-16 10:55:47,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:55:47,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:55:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:55:47,767 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 10:55:47,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:55:47,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310959788] [2022-09-16 10:55:47,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310959788] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:55:47,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:55:47,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:55:47,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148898249] [2022-09-16 10:55:47,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:55:47,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:55:47,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:55:47,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:55:47,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:55:47,771 INFO L87 Difference]: Start difference. First operand 3165 states and 10003 transitions. Second operand has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 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 10:55:47,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:55:47,862 INFO L93 Difference]: Finished difference Result 2676 states and 8373 transitions. [2022-09-16 10:55:47,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 10:55:47,862 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 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) Word has length 67 [2022-09-16 10:55:47,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:55:47,873 INFO L225 Difference]: With dead ends: 2676 [2022-09-16 10:55:47,874 INFO L226 Difference]: Without dead ends: 2676 [2022-09-16 10:55:47,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-09-16 10:55:47,875 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 183 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:55:47,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 216 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:55:47,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2022-09-16 10:55:47,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 2676. [2022-09-16 10:55:47,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2676 states, 2670 states have (on average 3.135955056179775) internal successors, (8373), 2675 states have internal predecessors, (8373), 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 10:55:47,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2676 states to 2676 states and 8373 transitions. [2022-09-16 10:55:47,954 INFO L78 Accepts]: Start accepts. Automaton has 2676 states and 8373 transitions. Word has length 67 [2022-09-16 10:55:47,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:55:47,955 INFO L495 AbstractCegarLoop]: Abstraction has 2676 states and 8373 transitions. [2022-09-16 10:55:47,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 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 10:55:47,955 INFO L276 IsEmpty]: Start isEmpty. Operand 2676 states and 8373 transitions. [2022-09-16 10:55:47,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-09-16 10:55:47,956 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:55:47,956 INFO L195 NwaCegarLoop]: 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] [2022-09-16 10:55:47,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 10:55:47,957 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-09-16 10:55:47,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:55:47,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1405736924, now seen corresponding path program 1 times [2022-09-16 10:55:47,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:55:47,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759393772] [2022-09-16 10:55:47,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:55:47,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:55:47,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:55:48,065 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 10:55:48,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:55:48,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759393772] [2022-09-16 10:55:48,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759393772] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:55:48,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:55:48,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-09-16 10:55:48,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109309064] [2022-09-16 10:55:48,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:55:48,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 10:55:48,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:55:48,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 10:55:48,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-09-16 10:55:48,068 INFO L87 Difference]: Start difference. First operand 2676 states and 8373 transitions. Second operand has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 7 states have internal predecessors, (67), 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 10:55:48,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:55:48,165 INFO L93 Difference]: Finished difference Result 2157 states and 6617 transitions. [2022-09-16 10:55:48,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:55:48,166 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 7 states have internal predecessors, (67), 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) Word has length 67 [2022-09-16 10:55:48,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:55:48,175 INFO L225 Difference]: With dead ends: 2157 [2022-09-16 10:55:48,175 INFO L226 Difference]: Without dead ends: 2157 [2022-09-16 10:55:48,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:55:48,177 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 203 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:55:48,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 252 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:55:48,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2157 states. [2022-09-16 10:55:48,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2157 to 2157. [2022-09-16 10:55:48,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2157 states, 2154 states have (on average 3.0719591457753017) internal successors, (6617), 2156 states have internal predecessors, (6617), 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 10:55:48,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2157 states to 2157 states and 6617 transitions. [2022-09-16 10:55:48,240 INFO L78 Accepts]: Start accepts. Automaton has 2157 states and 6617 transitions. Word has length 67 [2022-09-16 10:55:48,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:55:48,241 INFO L495 AbstractCegarLoop]: Abstraction has 2157 states and 6617 transitions. [2022-09-16 10:55:48,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 7 states have internal predecessors, (67), 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 10:55:48,241 INFO L276 IsEmpty]: Start isEmpty. Operand 2157 states and 6617 transitions. [2022-09-16 10:55:48,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-09-16 10:55:48,246 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:55:48,247 INFO L195 NwaCegarLoop]: 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 10:55:48,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 10:55:48,247 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-09-16 10:55:48,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:55:48,248 INFO L85 PathProgramCache]: Analyzing trace with hash 497587534, now seen corresponding path program 1 times [2022-09-16 10:55:48,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:55:48,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144168088] [2022-09-16 10:55:48,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:55:48,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:55:48,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:55:48,331 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 10:55:48,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:55:48,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144168088] [2022-09-16 10:55:48,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144168088] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:55:48,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:55:48,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-09-16 10:55:48,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567769405] [2022-09-16 10:55:48,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:55:48,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 10:55:48,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:55:48,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 10:55:48,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-09-16 10:55:48,333 INFO L87 Difference]: Start difference. First operand 2157 states and 6617 transitions. Second operand has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 7 states have internal predecessors, (77), 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 10:55:48,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:55:48,472 INFO L93 Difference]: Finished difference Result 2028 states and 6230 transitions. [2022-09-16 10:55:48,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:55:48,473 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 7 states have internal predecessors, (77), 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) Word has length 77 [2022-09-16 10:55:48,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:55:48,473 INFO L225 Difference]: With dead ends: 2028 [2022-09-16 10:55:48,476 INFO L226 Difference]: Without dead ends: 0 [2022-09-16 10:55:48,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:55:48,477 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 201 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:55:48,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 238 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:55:48,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-09-16 10:55:48,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-09-16 10:55:48,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 10:55:48,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-09-16 10:55:48,478 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 77 [2022-09-16 10:55:48,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:55:48,479 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-16 10:55:48,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 7 states have internal predecessors, (77), 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 10:55:48,479 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-09-16 10:55:48,479 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-09-16 10:55:48,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 27 remaining) [2022-09-16 10:55:48,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 27 remaining) [2022-09-16 10:55:48,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 27 remaining) [2022-09-16 10:55:48,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 27 remaining) [2022-09-16 10:55:48,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 27 remaining) [2022-09-16 10:55:48,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 27 remaining) [2022-09-16 10:55:48,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 27 remaining) [2022-09-16 10:55:48,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 27 remaining) [2022-09-16 10:55:48,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 27 remaining) [2022-09-16 10:55:48,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 27 remaining) [2022-09-16 10:55:48,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 27 remaining) [2022-09-16 10:55:48,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 27 remaining) [2022-09-16 10:55:48,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 27 remaining) [2022-09-16 10:55:48,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 27 remaining) [2022-09-16 10:55:48,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 27 remaining) [2022-09-16 10:55:48,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 27 remaining) [2022-09-16 10:55:48,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 27 remaining) [2022-09-16 10:55:48,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 27 remaining) [2022-09-16 10:55:48,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 27 remaining) [2022-09-16 10:55:48,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 27 remaining) [2022-09-16 10:55:48,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 27 remaining) [2022-09-16 10:55:48,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 27 remaining) [2022-09-16 10:55:48,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 27 remaining) [2022-09-16 10:55:48,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 27 remaining) [2022-09-16 10:55:48,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 27 remaining) [2022-09-16 10:55:48,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 27 remaining) [2022-09-16 10:55:48,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 27 remaining) [2022-09-16 10:55:48,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-16 10:55:48,492 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:55:48,497 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 10:55:48,498 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 10:55:48,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 10:55:48 BasicIcfg [2022-09-16 10:55:48,502 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 10:55:48,503 INFO L158 Benchmark]: Toolchain (without parser) took 5428.46ms. Allocated memory was 170.9MB in the beginning and 641.7MB in the end (delta: 470.8MB). Free memory was 116.8MB in the beginning and 460.6MB in the end (delta: -343.9MB). Peak memory consumption was 127.8MB. Max. memory is 8.0GB. [2022-09-16 10:55:48,503 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 170.9MB. Free memory is still 133.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 10:55:48,503 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.99ms. Allocated memory is still 170.9MB. Free memory was 116.6MB in the beginning and 147.8MB in the end (delta: -31.2MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. [2022-09-16 10:55:48,503 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.69ms. Allocated memory is still 170.9MB. Free memory was 147.8MB in the beginning and 145.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 10:55:48,504 INFO L158 Benchmark]: Boogie Preprocessor took 26.58ms. Allocated memory is still 170.9MB. Free memory was 145.7MB in the beginning and 144.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 10:55:48,504 INFO L158 Benchmark]: RCFGBuilder took 521.40ms. Allocated memory is still 170.9MB. Free memory was 144.2MB in the beginning and 121.1MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-09-16 10:55:48,504 INFO L158 Benchmark]: TraceAbstraction took 4577.48ms. Allocated memory was 170.9MB in the beginning and 641.7MB in the end (delta: 470.8MB). Free memory was 120.7MB in the beginning and 460.6MB in the end (delta: -340.0MB). Peak memory consumption was 132.3MB. Max. memory is 8.0GB. [2022-09-16 10:55:48,506 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 170.9MB. Free memory is still 133.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 255.99ms. Allocated memory is still 170.9MB. Free memory was 116.6MB in the beginning and 147.8MB in the end (delta: -31.2MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.69ms. Allocated memory is still 170.9MB. Free memory was 147.8MB in the beginning and 145.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.58ms. Allocated memory is still 170.9MB. Free memory was 145.7MB in the beginning and 144.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 521.40ms. Allocated memory is still 170.9MB. Free memory was 144.2MB in the beginning and 121.1MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * TraceAbstraction took 4577.48ms. Allocated memory was 170.9MB in the beginning and 641.7MB in the end (delta: 470.8MB). Free memory was 120.7MB in the beginning and 460.6MB in the end (delta: -340.0MB). Peak memory consumption was 132.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: 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, 166 locations, 27 error locations. Started 1 CEGAR loops. OverallTime: 4.4s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1028 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1028 mSDsluCounter, 1697 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1310 mSDsCounter, 68 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 632 IncrementalHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 68 mSolverCounterUnsat, 632 mSDtfsCounter, 632 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7172occurred in iteration=1, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 1516 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 491 NumberOfCodeBlocks, 491 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 483 ConstructedInterpolants, 0 QuantifiedInterpolants, 961 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 10:55:48,549 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...