/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-misc-4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:54:53,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:54:53,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:54:53,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:54:53,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:54:53,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:54:53,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:54:53,559 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:54:53,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:54:53,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:54:53,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:54:53,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:54:53,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:54:53,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:54:53,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:54:53,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:54:53,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:54:53,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:54:53,571 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:54:53,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:54:53,573 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:54:53,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:54:53,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:54:53,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:54:53,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 10:54:53,577 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 10:54:53,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 10:54:53,577 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 10:54:53,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 10:54:53,578 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 10:54:53,578 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 10:54:53,579 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 10:54:53,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 10:54:53,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 10:54:53,580 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 10:54:53,580 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 10:54:53,581 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 10:54:53,581 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 10:54:53,581 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:54:53,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:54:53,582 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:54:53,583 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 10:54:53,599 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:54:53,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:54:53,600 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:54:53,600 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:54:53,601 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:54:53,601 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:54:53,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:54:53,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:54:53,602 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:54:53,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:54:53,602 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:54:53,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:54:53,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:54:53,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:54:53,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:54:53,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:54:53,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:54:53,603 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:54:53,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:54:53,603 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:54:53,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:54:53,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:54:53,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:54:53,604 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:54:53,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:54:53,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:54:53,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:54:53,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:54:53,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:54:53,605 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:54:53,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:54:53,605 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:54:53,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:54:53,605 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:54:53,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:54:53,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:54:53,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:54:53,816 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:54:53,817 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:54:53,818 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-4.wvr.c [2022-09-16 10:54:53,877 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74492cc54/c758d9828220415588277e96abd2c654/FLAG9136d1b62 [2022-09-16 10:54:54,229 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:54:54,229 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-4.wvr.c [2022-09-16 10:54:54,236 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74492cc54/c758d9828220415588277e96abd2c654/FLAG9136d1b62 [2022-09-16 10:54:54,245 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74492cc54/c758d9828220415588277e96abd2c654 [2022-09-16 10:54:54,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:54:54,250 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:54:54,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:54:54,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:54:54,254 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:54:54,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:54:54" (1/1) ... [2022-09-16 10:54:54,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@424fe956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:54, skipping insertion in model container [2022-09-16 10:54:54,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:54:54" (1/1) ... [2022-09-16 10:54:54,260 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:54:54,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:54:54,444 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-misc-4.wvr.c[2950,2963] [2022-09-16 10:54:54,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:54:54,449 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:54:54,464 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-misc-4.wvr.c[2950,2963] [2022-09-16 10:54:54,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:54:54,473 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:54:54,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:54 WrapperNode [2022-09-16 10:54:54,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:54:54,474 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:54:54,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:54:54,475 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:54:54,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:54" (1/1) ... [2022-09-16 10:54:54,493 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:54" (1/1) ... [2022-09-16 10:54:54,510 INFO L138 Inliner]: procedures = 22, calls = 43, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2022-09-16 10:54:54,510 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:54:54,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:54:54,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:54:54,511 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:54:54,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:54" (1/1) ... [2022-09-16 10:54:54,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:54" (1/1) ... [2022-09-16 10:54:54,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:54" (1/1) ... [2022-09-16 10:54:54,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:54" (1/1) ... [2022-09-16 10:54:54,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:54" (1/1) ... [2022-09-16 10:54:54,524 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:54" (1/1) ... [2022-09-16 10:54:54,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:54" (1/1) ... [2022-09-16 10:54:54,526 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:54:54,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:54:54,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:54:54,527 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:54:54,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:54" (1/1) ... [2022-09-16 10:54:54,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:54:54,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:54:54,562 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 10:54:54,564 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 10:54:54,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:54:54,589 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-16 10:54:54,589 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-16 10:54:54,589 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-16 10:54:54,590 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-16 10:54:54,590 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-16 10:54:54,590 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-16 10:54:54,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:54:54,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:54:54,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:54:54,594 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 10:54:54,594 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 10:54:54,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:54:54,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:54:54,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 10:54:54,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:54:54,595 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 10:54:54,653 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:54:54,654 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:54:54,814 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:54:54,873 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:54:54,874 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-09-16 10:54:54,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:54:54 BoogieIcfgContainer [2022-09-16 10:54:54,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:54:54,877 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:54:54,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:54:54,880 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:54:54,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:54:54" (1/3) ... [2022-09-16 10:54:54,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2edc106 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:54:54, skipping insertion in model container [2022-09-16 10:54:54,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:54:54" (2/3) ... [2022-09-16 10:54:54,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2edc106 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:54:54, skipping insertion in model container [2022-09-16 10:54:54,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:54:54" (3/3) ... [2022-09-16 10:54:54,882 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-4.wvr.c [2022-09-16 10:54:54,892 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:54:54,898 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:54:54,898 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 10:54:54,898 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:54:54,967 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-09-16 10:54:54,989 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 115 places, 112 transitions, 248 flow [2022-09-16 10:54:55,192 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4423 states, 4398 states have (on average 3.5748067303319693) internal successors, (15722), 4422 states have internal predecessors, (15722), 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 10:54:55,213 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:54:55,220 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;@39d37e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:54:55,221 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2022-09-16 10:54:55,248 INFO L276 IsEmpty]: Start isEmpty. Operand has 4423 states, 4398 states have (on average 3.5748067303319693) internal successors, (15722), 4422 states have internal predecessors, (15722), 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 10:54:55,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-09-16 10:54:55,254 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:55,255 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] [2022-09-16 10:54:55,255 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:54:55,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:55,262 INFO L85 PathProgramCache]: Analyzing trace with hash 634735597, now seen corresponding path program 1 times [2022-09-16 10:54:55,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:55,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125274797] [2022-09-16 10:54:55,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:55,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:55,472 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 10:54:55,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:55,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125274797] [2022-09-16 10:54:55,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125274797] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:55,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:54:55,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 10:54:55,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206728050] [2022-09-16 10:54:55,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:55,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:54:55,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:55,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:54:55,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:54:55,505 INFO L87 Difference]: Start difference. First operand has 4423 states, 4398 states have (on average 3.5748067303319693) internal successors, (15722), 4422 states have internal predecessors, (15722), 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 10.5) internal successors, (42), 5 states have internal predecessors, (42), 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 10:54:55,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:55,739 INFO L93 Difference]: Finished difference Result 7587 states and 26139 transitions. [2022-09-16 10:54:55,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:54:55,741 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 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 42 [2022-09-16 10:54:55,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:55,800 INFO L225 Difference]: With dead ends: 7587 [2022-09-16 10:54:55,800 INFO L226 Difference]: Without dead ends: 7478 [2022-09-16 10:54:55,802 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 10:54:55,804 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 72 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:55,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 230 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:54:55,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7478 states. [2022-09-16 10:54:56,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7478 to 7014. [2022-09-16 10:54:56,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7014 states, 6990 states have (on average 3.5785407725321887) internal successors, (25014), 7013 states have internal predecessors, (25014), 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 10:54:56,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7014 states to 7014 states and 25014 transitions. [2022-09-16 10:54:56,153 INFO L78 Accepts]: Start accepts. Automaton has 7014 states and 25014 transitions. Word has length 42 [2022-09-16 10:54:56,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:56,154 INFO L495 AbstractCegarLoop]: Abstraction has 7014 states and 25014 transitions. [2022-09-16 10:54:56,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 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 10:54:56,155 INFO L276 IsEmpty]: Start isEmpty. Operand 7014 states and 25014 transitions. [2022-09-16 10:54:56,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-09-16 10:54:56,155 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:56,156 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] [2022-09-16 10:54:56,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:54:56,156 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:54:56,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:56,157 INFO L85 PathProgramCache]: Analyzing trace with hash 634735598, now seen corresponding path program 1 times [2022-09-16 10:54:56,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:56,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174445088] [2022-09-16 10:54:56,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:56,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:56,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:56,224 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 10:54:56,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:56,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174445088] [2022-09-16 10:54:56,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174445088] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:56,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:54:56,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:54:56,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838998419] [2022-09-16 10:54:56,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:56,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:54:56,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:56,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:54:56,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:54:56,226 INFO L87 Difference]: Start difference. First operand 7014 states and 25014 transitions. Second operand has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 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 10:54:56,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:56,311 INFO L93 Difference]: Finished difference Result 6138 states and 21625 transitions. [2022-09-16 10:54:56,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:54:56,312 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 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 42 [2022-09-16 10:54:56,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:56,358 INFO L225 Difference]: With dead ends: 6138 [2022-09-16 10:54:56,358 INFO L226 Difference]: Without dead ends: 6138 [2022-09-16 10:54:56,361 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 10:54:56,362 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 53 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:56,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 145 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:54:56,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6138 states. [2022-09-16 10:54:56,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6138 to 6138. [2022-09-16 10:54:56,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6138 states, 6123 states have (on average 3.5317654744406335) internal successors, (21625), 6137 states have internal predecessors, (21625), 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 10:54:56,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6138 states to 6138 states and 21625 transitions. [2022-09-16 10:54:56,568 INFO L78 Accepts]: Start accepts. Automaton has 6138 states and 21625 transitions. Word has length 42 [2022-09-16 10:54:56,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:56,569 INFO L495 AbstractCegarLoop]: Abstraction has 6138 states and 21625 transitions. [2022-09-16 10:54:56,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 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 10:54:56,569 INFO L276 IsEmpty]: Start isEmpty. Operand 6138 states and 21625 transitions. [2022-09-16 10:54:56,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-09-16 10:54:56,572 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:56,572 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] [2022-09-16 10:54:56,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 10:54:56,572 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:54:56,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:56,579 INFO L85 PathProgramCache]: Analyzing trace with hash 634735632, now seen corresponding path program 1 times [2022-09-16 10:54:56,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:56,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282278901] [2022-09-16 10:54:56,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:56,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:56,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:56,657 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 10:54:56,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:56,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282278901] [2022-09-16 10:54:56,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282278901] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:56,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:54:56,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:54:56,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316129322] [2022-09-16 10:54:56,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:56,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:54:56,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:56,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:54:56,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:54:56,659 INFO L87 Difference]: Start difference. First operand 6138 states and 21625 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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 10:54:56,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:56,755 INFO L93 Difference]: Finished difference Result 7004 states and 24026 transitions. [2022-09-16 10:54:56,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:54:56,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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 42 [2022-09-16 10:54:56,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:56,783 INFO L225 Difference]: With dead ends: 7004 [2022-09-16 10:54:56,783 INFO L226 Difference]: Without dead ends: 7004 [2022-09-16 10:54:56,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 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 10:54:56,784 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 140 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:56,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 193 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:54:56,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7004 states. [2022-09-16 10:54:56,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7004 to 5988. [2022-09-16 10:54:56,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5988 states, 5973 states have (on average 3.482839444165411) internal successors, (20803), 5987 states have internal predecessors, (20803), 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 10:54:56,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5988 states to 5988 states and 20803 transitions. [2022-09-16 10:54:56,998 INFO L78 Accepts]: Start accepts. Automaton has 5988 states and 20803 transitions. Word has length 42 [2022-09-16 10:54:56,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:56,999 INFO L495 AbstractCegarLoop]: Abstraction has 5988 states and 20803 transitions. [2022-09-16 10:54:56,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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 10:54:57,000 INFO L276 IsEmpty]: Start isEmpty. Operand 5988 states and 20803 transitions. [2022-09-16 10:54:57,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-09-16 10:54:57,004 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:57,004 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:54:57,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 10:54:57,004 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:54:57,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:57,006 INFO L85 PathProgramCache]: Analyzing trace with hash -614481201, now seen corresponding path program 1 times [2022-09-16 10:54:57,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:57,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775914985] [2022-09-16 10:54:57,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:57,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:57,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:57,174 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:57,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:57,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775914985] [2022-09-16 10:54:57,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775914985] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:57,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:54:57,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 10:54:57,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552344190] [2022-09-16 10:54:57,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:57,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:54:57,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:57,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:54:57,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:54:57,178 INFO L87 Difference]: Start difference. First operand 5988 states and 20803 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 10:54:57,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:57,263 INFO L93 Difference]: Finished difference Result 8744 states and 29542 transitions. [2022-09-16 10:54:57,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:54:57,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 47 [2022-09-16 10:54:57,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:57,293 INFO L225 Difference]: With dead ends: 8744 [2022-09-16 10:54:57,293 INFO L226 Difference]: Without dead ends: 8744 [2022-09-16 10:54:57,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:54:57,300 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 95 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:57,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 326 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:54:57,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8744 states. [2022-09-16 10:54:57,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8744 to 6716. [2022-09-16 10:54:57,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6716 states, 6701 states have (on average 3.4190419340396954) internal successors, (22911), 6715 states have internal predecessors, (22911), 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 10:54:57,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6716 states to 6716 states and 22911 transitions. [2022-09-16 10:54:57,494 INFO L78 Accepts]: Start accepts. Automaton has 6716 states and 22911 transitions. Word has length 47 [2022-09-16 10:54:57,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:57,495 INFO L495 AbstractCegarLoop]: Abstraction has 6716 states and 22911 transitions. [2022-09-16 10:54:57,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 10:54:57,495 INFO L276 IsEmpty]: Start isEmpty. Operand 6716 states and 22911 transitions. [2022-09-16 10:54:57,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-09-16 10:54:57,496 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:57,496 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:54:57,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 10:54:57,496 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:54:57,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:57,497 INFO L85 PathProgramCache]: Analyzing trace with hash -614481167, now seen corresponding path program 1 times [2022-09-16 10:54:57,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:57,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24576432] [2022-09-16 10:54:57,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:57,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:57,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:57,549 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:57,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:57,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24576432] [2022-09-16 10:54:57,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24576432] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:57,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:54:57,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:54:57,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051649130] [2022-09-16 10:54:57,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:57,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:54:57,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:57,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:54:57,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:54:57,551 INFO L87 Difference]: Start difference. First operand 6716 states and 22911 transitions. Second operand has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 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 10:54:57,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:57,670 INFO L93 Difference]: Finished difference Result 6988 states and 24100 transitions. [2022-09-16 10:54:57,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:54:57,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 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 47 [2022-09-16 10:54:57,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:57,700 INFO L225 Difference]: With dead ends: 6988 [2022-09-16 10:54:57,701 INFO L226 Difference]: Without dead ends: 6988 [2022-09-16 10:54:57,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:54:57,702 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 49 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:57,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 156 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:54:57,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6988 states. [2022-09-16 10:54:57,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6988 to 6060. [2022-09-16 10:54:57,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6060 states, 6052 states have (on average 3.4163912756113683) internal successors, (20676), 6059 states have internal predecessors, (20676), 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 10:54:57,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6060 states to 6060 states and 20676 transitions. [2022-09-16 10:54:57,877 INFO L78 Accepts]: Start accepts. Automaton has 6060 states and 20676 transitions. Word has length 47 [2022-09-16 10:54:57,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:57,878 INFO L495 AbstractCegarLoop]: Abstraction has 6060 states and 20676 transitions. [2022-09-16 10:54:57,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 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 10:54:57,878 INFO L276 IsEmpty]: Start isEmpty. Operand 6060 states and 20676 transitions. [2022-09-16 10:54:57,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-09-16 10:54:57,880 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:57,880 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:54:57,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 10:54:57,880 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:54:57,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:57,881 INFO L85 PathProgramCache]: Analyzing trace with hash -614481166, now seen corresponding path program 1 times [2022-09-16 10:54:57,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:57,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092339362] [2022-09-16 10:54:57,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:57,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:57,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:57,971 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:54:57,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:57,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092339362] [2022-09-16 10:54:57,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092339362] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:57,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:54:57,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 10:54:57,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758554118] [2022-09-16 10:54:57,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:57,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:54:57,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:57,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:54:57,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:54:57,975 INFO L87 Difference]: Start difference. First operand 6060 states and 20676 transitions. Second operand has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 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 10:54:58,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:58,071 INFO L93 Difference]: Finished difference Result 9722 states and 33313 transitions. [2022-09-16 10:54:58,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 10:54:58,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 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 47 [2022-09-16 10:54:58,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:58,108 INFO L225 Difference]: With dead ends: 9722 [2022-09-16 10:54:58,108 INFO L226 Difference]: Without dead ends: 9722 [2022-09-16 10:54:58,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-09-16 10:54:58,110 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 107 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:58,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 255 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:54:58,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9722 states. [2022-09-16 10:54:58,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9722 to 7132. [2022-09-16 10:54:58,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7132 states, 7124 states have (on average 3.45592363840539) internal successors, (24620), 7131 states have internal predecessors, (24620), 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 10:54:58,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7132 states to 7132 states and 24620 transitions. [2022-09-16 10:54:58,350 INFO L78 Accepts]: Start accepts. Automaton has 7132 states and 24620 transitions. Word has length 47 [2022-09-16 10:54:58,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:58,351 INFO L495 AbstractCegarLoop]: Abstraction has 7132 states and 24620 transitions. [2022-09-16 10:54:58,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 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 10:54:58,351 INFO L276 IsEmpty]: Start isEmpty. Operand 7132 states and 24620 transitions. [2022-09-16 10:54:58,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-09-16 10:54:58,351 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:58,352 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] [2022-09-16 10:54:58,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 10:54:58,352 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:54:58,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:58,352 INFO L85 PathProgramCache]: Analyzing trace with hash -285502733, now seen corresponding path program 1 times [2022-09-16 10:54:58,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:58,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721462250] [2022-09-16 10:54:58,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:58,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:58,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:58,403 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 10:54:58,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:58,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721462250] [2022-09-16 10:54:58,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721462250] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:58,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:54:58,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 10:54:58,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971509079] [2022-09-16 10:54:58,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:58,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:54:58,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:58,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:54:58,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:54:58,404 INFO L87 Difference]: Start difference. First operand 7132 states and 24620 transitions. Second operand has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 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 10:54:58,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:58,495 INFO L93 Difference]: Finished difference Result 11064 states and 38288 transitions. [2022-09-16 10:54:58,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:54:58,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 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 48 [2022-09-16 10:54:58,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:58,527 INFO L225 Difference]: With dead ends: 11064 [2022-09-16 10:54:58,527 INFO L226 Difference]: Without dead ends: 11064 [2022-09-16 10:54:58,528 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 10:54:58,528 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 74 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:58,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 224 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:54:58,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11064 states. [2022-09-16 10:54:58,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11064 to 9820. [2022-09-16 10:54:58,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9820 states, 9812 states have (on average 3.5382185079494497) internal successors, (34717), 9819 states have internal predecessors, (34717), 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 10:54:58,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9820 states to 9820 states and 34717 transitions. [2022-09-16 10:54:58,759 INFO L78 Accepts]: Start accepts. Automaton has 9820 states and 34717 transitions. Word has length 48 [2022-09-16 10:54:58,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:58,760 INFO L495 AbstractCegarLoop]: Abstraction has 9820 states and 34717 transitions. [2022-09-16 10:54:58,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 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 10:54:58,760 INFO L276 IsEmpty]: Start isEmpty. Operand 9820 states and 34717 transitions. [2022-09-16 10:54:58,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-09-16 10:54:58,761 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:58,761 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] [2022-09-16 10:54:58,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 10:54:58,762 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:54:58,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:58,762 INFO L85 PathProgramCache]: Analyzing trace with hash 2039811090, now seen corresponding path program 1 times [2022-09-16 10:54:58,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:58,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043708616] [2022-09-16 10:54:58,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:58,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:58,983 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 10:54:58,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:58,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043708616] [2022-09-16 10:54:58,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043708616] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:58,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:54:58,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-09-16 10:54:58,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572703694] [2022-09-16 10:54:58,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:58,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 10:54:58,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:58,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 10:54:58,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-09-16 10:54:58,985 INFO L87 Difference]: Start difference. First operand 9820 states and 34717 transitions. Second operand has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 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 10:54:59,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:59,191 INFO L93 Difference]: Finished difference Result 13528 states and 47868 transitions. [2022-09-16 10:54:59,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:54:59,192 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 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 52 [2022-09-16 10:54:59,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:54:59,245 INFO L225 Difference]: With dead ends: 13528 [2022-09-16 10:54:59,245 INFO L226 Difference]: Without dead ends: 12604 [2022-09-16 10:54:59,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:54:59,246 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 250 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:54:59,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 298 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:54:59,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12604 states. [2022-09-16 10:54:59,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12604 to 11598. [2022-09-16 10:54:59,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11598 states, 11590 states have (on average 3.5962899050905954) internal successors, (41681), 11597 states have internal predecessors, (41681), 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 10:54:59,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11598 states to 11598 states and 41681 transitions. [2022-09-16 10:54:59,618 INFO L78 Accepts]: Start accepts. Automaton has 11598 states and 41681 transitions. Word has length 52 [2022-09-16 10:54:59,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:54:59,619 INFO L495 AbstractCegarLoop]: Abstraction has 11598 states and 41681 transitions. [2022-09-16 10:54:59,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 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 10:54:59,620 INFO L276 IsEmpty]: Start isEmpty. Operand 11598 states and 41681 transitions. [2022-09-16 10:54:59,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-09-16 10:54:59,627 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:54:59,627 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] [2022-09-16 10:54:59,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-16 10:54:59,628 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:54:59,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:54:59,628 INFO L85 PathProgramCache]: Analyzing trace with hash 2039821800, now seen corresponding path program 1 times [2022-09-16 10:54:59,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:54:59,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846108841] [2022-09-16 10:54:59,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:54:59,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:54:59,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:54:59,723 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 10:54:59,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:54:59,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846108841] [2022-09-16 10:54:59,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846108841] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:54:59,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:54:59,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-09-16 10:54:59,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317644904] [2022-09-16 10:54:59,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:54:59,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 10:54:59,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:54:59,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 10:54:59,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-09-16 10:54:59,725 INFO L87 Difference]: Start difference. First operand 11598 states and 41681 transitions. Second operand has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 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 10:54:59,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:54:59,968 INFO L93 Difference]: Finished difference Result 23098 states and 82749 transitions. [2022-09-16 10:54:59,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:54:59,969 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 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 52 [2022-09-16 10:54:59,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:55:00,167 INFO L225 Difference]: With dead ends: 23098 [2022-09-16 10:55:00,168 INFO L226 Difference]: Without dead ends: 23098 [2022-09-16 10:55:00,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:55:00,168 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 190 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:55:00,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 295 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:55:00,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23098 states. [2022-09-16 10:55:00,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23098 to 20262. [2022-09-16 10:55:00,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20262 states, 20254 states have (on average 3.6607583687172904) internal successors, (74145), 20261 states have internal predecessors, (74145), 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 10:55:00,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20262 states to 20262 states and 74145 transitions. [2022-09-16 10:55:00,778 INFO L78 Accepts]: Start accepts. Automaton has 20262 states and 74145 transitions. Word has length 52 [2022-09-16 10:55:00,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:55:00,779 INFO L495 AbstractCegarLoop]: Abstraction has 20262 states and 74145 transitions. [2022-09-16 10:55:00,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 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 10:55:00,779 INFO L276 IsEmpty]: Start isEmpty. Operand 20262 states and 74145 transitions. [2022-09-16 10:55:00,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-09-16 10:55:00,782 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:55:00,783 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:55:00,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-16 10:55:00,783 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:55:00,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:55:00,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1660088825, now seen corresponding path program 1 times [2022-09-16 10:55:00,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:55:00,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868287590] [2022-09-16 10:55:00,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:55:00,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:55:00,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:55:00,927 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:55:00,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:55:00,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868287590] [2022-09-16 10:55:00,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868287590] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:55:00,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857477032] [2022-09-16 10:55:00,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:55:00,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:55:00,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:55:00,930 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:55:00,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-09-16 10:55:00,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:55:00,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 9 conjunts are in the unsatisfiable core [2022-09-16 10:55:01,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:55:01,186 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:55:01,187 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:55:01,433 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:55:01,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857477032] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:55:01,433 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:55:01,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 17 [2022-09-16 10:55:01,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541956481] [2022-09-16 10:55:01,434 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:55:01,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-09-16 10:55:01,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:55:01,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-09-16 10:55:01,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2022-09-16 10:55:01,435 INFO L87 Difference]: Start difference. First operand 20262 states and 74145 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 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 10:55:02,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:55:02,266 INFO L93 Difference]: Finished difference Result 53644 states and 190006 transitions. [2022-09-16 10:55:02,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 10:55:02,267 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 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 10:55:02,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:55:02,638 INFO L225 Difference]: With dead ends: 53644 [2022-09-16 10:55:02,638 INFO L226 Difference]: Without dead ends: 53644 [2022-09-16 10:55:02,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=175, Invalid=475, Unknown=0, NotChecked=0, Total=650 [2022-09-16 10:55:02,639 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 1272 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1272 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:55:02,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1272 Valid, 805 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:55:02,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53644 states. [2022-09-16 10:55:03,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53644 to 34684. [2022-09-16 10:55:03,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34684 states, 34676 states have (on average 3.6808167031952936) internal successors, (127636), 34683 states have internal predecessors, (127636), 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 10:55:03,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34684 states to 34684 states and 127636 transitions. [2022-09-16 10:55:03,922 INFO L78 Accepts]: Start accepts. Automaton has 34684 states and 127636 transitions. Word has length 57 [2022-09-16 10:55:03,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:55:03,923 INFO L495 AbstractCegarLoop]: Abstraction has 34684 states and 127636 transitions. [2022-09-16 10:55:03,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 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 10:55:03,923 INFO L276 IsEmpty]: Start isEmpty. Operand 34684 states and 127636 transitions. [2022-09-16 10:55:03,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-09-16 10:55:03,926 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:55:03,927 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:55:03,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-09-16 10:55:04,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-09-16 10:55:04,132 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:55:04,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:55:04,133 INFO L85 PathProgramCache]: Analyzing trace with hash -377205286, now seen corresponding path program 1 times [2022-09-16 10:55:04,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:55:04,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667487713] [2022-09-16 10:55:04,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:55:04,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:55:04,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:55:04,193 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:55:04,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:55:04,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667487713] [2022-09-16 10:55:04,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667487713] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:55:04,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:55:04,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 10:55:04,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806227075] [2022-09-16 10:55:04,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:55:04,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:55:04,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:55:04,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:55:04,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:55:04,194 INFO L87 Difference]: Start difference. First operand 34684 states and 127636 transitions. Second operand has 4 states, 4 states have (on average 14.25) 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 10:55:04,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:55:04,565 INFO L93 Difference]: Finished difference Result 25744 states and 90119 transitions. [2022-09-16 10:55:04,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:55:04,566 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) 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 10:55:04,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:55:04,672 INFO L225 Difference]: With dead ends: 25744 [2022-09-16 10:55:04,673 INFO L226 Difference]: Without dead ends: 24712 [2022-09-16 10:55:04,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:55:04,673 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 81 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:55:04,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 290 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:55:04,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24712 states. [2022-09-16 10:55:05,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24712 to 19722. [2022-09-16 10:55:05,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19722 states, 19716 states have (on average 3.5795800365185637) internal successors, (70575), 19721 states have internal predecessors, (70575), 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 10:55:05,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19722 states to 19722 states and 70575 transitions. [2022-09-16 10:55:05,204 INFO L78 Accepts]: Start accepts. Automaton has 19722 states and 70575 transitions. Word has length 57 [2022-09-16 10:55:05,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:55:05,204 INFO L495 AbstractCegarLoop]: Abstraction has 19722 states and 70575 transitions. [2022-09-16 10:55:05,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) 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 10:55:05,204 INFO L276 IsEmpty]: Start isEmpty. Operand 19722 states and 70575 transitions. [2022-09-16 10:55:05,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-09-16 10:55:05,211 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:55:05,211 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:55:05,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-09-16 10:55:05,211 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:55:05,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:55:05,211 INFO L85 PathProgramCache]: Analyzing trace with hash -742967802, now seen corresponding path program 1 times [2022-09-16 10:55:05,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:55:05,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824670685] [2022-09-16 10:55:05,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:55:05,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:55:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:55:05,232 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:55:05,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:55:05,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824670685] [2022-09-16 10:55:05,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824670685] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:55:05,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:55:05,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:55:05,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065162853] [2022-09-16 10:55:05,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:55:05,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:55:05,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:55:05,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:55:05,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:55:05,233 INFO L87 Difference]: Start difference. First operand 19722 states and 70575 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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 10:55:05,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:55:05,527 INFO L93 Difference]: Finished difference Result 25334 states and 88677 transitions. [2022-09-16 10:55:05,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:55:05,527 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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 62 [2022-09-16 10:55:05,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:55:05,601 INFO L225 Difference]: With dead ends: 25334 [2022-09-16 10:55:05,601 INFO L226 Difference]: Without dead ends: 23156 [2022-09-16 10:55:05,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:55:05,602 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 102 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:55:05,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 208 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:55:05,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23156 states. [2022-09-16 10:55:05,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23156 to 19502. [2022-09-16 10:55:06,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19502 states, 19496 states have (on average 3.491741895773492) internal successors, (68075), 19501 states have internal predecessors, (68075), 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 10:55:06,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19502 states to 19502 states and 68075 transitions. [2022-09-16 10:55:06,086 INFO L78 Accepts]: Start accepts. Automaton has 19502 states and 68075 transitions. Word has length 62 [2022-09-16 10:55:06,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:55:06,086 INFO L495 AbstractCegarLoop]: Abstraction has 19502 states and 68075 transitions. [2022-09-16 10:55:06,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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 10:55:06,087 INFO L276 IsEmpty]: Start isEmpty. Operand 19502 states and 68075 transitions. [2022-09-16 10:55:06,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-09-16 10:55:06,092 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:55:06,092 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:55:06,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-09-16 10:55:06,093 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:55:06,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:55:06,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1050301300, now seen corresponding path program 2 times [2022-09-16 10:55:06,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:55:06,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599739793] [2022-09-16 10:55:06,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:55:06,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:55:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:55:06,188 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:55:06,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:55:06,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599739793] [2022-09-16 10:55:06,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599739793] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:55:06,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774461509] [2022-09-16 10:55:06,189 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:55:06,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:55:06,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:55:06,190 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:55:06,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-09-16 10:55:06,239 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-16 10:55:06,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:55:06,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 10 conjunts are in the unsatisfiable core [2022-09-16 10:55:06,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:55:06,488 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:55:06,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:55:06,578 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:55:06,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774461509] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:55:06,579 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:55:06,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6] total 15 [2022-09-16 10:55:06,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672159135] [2022-09-16 10:55:06,579 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:55:06,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-09-16 10:55:06,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:55:06,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-09-16 10:55:06,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2022-09-16 10:55:06,580 INFO L87 Difference]: Start difference. First operand 19502 states and 68075 transitions. Second operand has 16 states, 15 states have (on average 7.733333333333333) internal successors, (116), 16 states have internal predecessors, (116), 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 10:55:07,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:55:07,026 INFO L93 Difference]: Finished difference Result 35872 states and 122115 transitions. [2022-09-16 10:55:07,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-09-16 10:55:07,027 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.733333333333333) internal successors, (116), 16 states have internal predecessors, (116), 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 62 [2022-09-16 10:55:07,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:55:07,122 INFO L225 Difference]: With dead ends: 35872 [2022-09-16 10:55:07,123 INFO L226 Difference]: Without dead ends: 31510 [2022-09-16 10:55:07,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2022-09-16 10:55:07,123 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 586 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:55:07,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 714 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:55:07,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31510 states. [2022-09-16 10:55:07,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31510 to 23936. [2022-09-16 10:55:07,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23936 states, 23930 states have (on average 3.365231926452152) internal successors, (80530), 23935 states have internal predecessors, (80530), 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 10:55:07,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23936 states to 23936 states and 80530 transitions. [2022-09-16 10:55:07,863 INFO L78 Accepts]: Start accepts. Automaton has 23936 states and 80530 transitions. Word has length 62 [2022-09-16 10:55:07,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:55:07,863 INFO L495 AbstractCegarLoop]: Abstraction has 23936 states and 80530 transitions. [2022-09-16 10:55:07,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.733333333333333) internal successors, (116), 16 states have internal predecessors, (116), 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 10:55:07,863 INFO L276 IsEmpty]: Start isEmpty. Operand 23936 states and 80530 transitions. [2022-09-16 10:55:07,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-09-16 10:55:07,884 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:55:07,884 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:55:07,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-09-16 10:55:08,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-09-16 10:55:08,095 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:55:08,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:55:08,097 INFO L85 PathProgramCache]: Analyzing trace with hash 809401226, now seen corresponding path program 1 times [2022-09-16 10:55:08,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:55:08,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986753932] [2022-09-16 10:55:08,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:55:08,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:55:08,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:55:08,140 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 32 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-09-16 10:55:08,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:55:08,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986753932] [2022-09-16 10:55:08,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986753932] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:55:08,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176102572] [2022-09-16 10:55:08,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:55:08,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:55:08,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:55:08,141 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:55:08,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-09-16 10:55:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:55:08,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 8 conjunts are in the unsatisfiable core [2022-09-16 10:55:08,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:55:08,236 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 32 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-09-16 10:55:08,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:55:08,276 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 32 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-09-16 10:55:08,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176102572] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:55:08,276 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:55:08,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2022-09-16 10:55:08,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995476137] [2022-09-16 10:55:08,276 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:55:08,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:55:08,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:55:08,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:55:08,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:55:08,277 INFO L87 Difference]: Start difference. First operand 23936 states and 80530 transitions. Second operand has 6 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 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 10:55:08,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:55:08,439 INFO L93 Difference]: Finished difference Result 25684 states and 85708 transitions. [2022-09-16 10:55:08,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 10:55:08,439 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 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 82 [2022-09-16 10:55:08,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:55:08,501 INFO L225 Difference]: With dead ends: 25684 [2022-09-16 10:55:08,501 INFO L226 Difference]: Without dead ends: 24184 [2022-09-16 10:55:08,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 160 SyntacticMatches, 5 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:55:08,502 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 166 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:55:08,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 337 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:55:08,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24184 states. [2022-09-16 10:55:08,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24184 to 13120. [2022-09-16 10:55:08,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13120 states, 13117 states have (on average 3.34390485629336) internal successors, (43862), 13119 states have internal predecessors, (43862), 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 10:55:08,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13120 states to 13120 states and 43862 transitions. [2022-09-16 10:55:08,941 INFO L78 Accepts]: Start accepts. Automaton has 13120 states and 43862 transitions. Word has length 82 [2022-09-16 10:55:08,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:55:08,941 INFO L495 AbstractCegarLoop]: Abstraction has 13120 states and 43862 transitions. [2022-09-16 10:55:08,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 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 10:55:08,941 INFO L276 IsEmpty]: Start isEmpty. Operand 13120 states and 43862 transitions. [2022-09-16 10:55:08,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-09-16 10:55:08,959 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:55:08,959 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:55:08,976 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-09-16 10:55:09,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:55:09,160 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:55:09,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:55:09,160 INFO L85 PathProgramCache]: Analyzing trace with hash -2071773075, now seen corresponding path program 1 times [2022-09-16 10:55:09,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:55:09,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792947010] [2022-09-16 10:55:09,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:55:09,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:55:09,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:55:09,215 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 37 proven. 25 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-09-16 10:55:09,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:55:09,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792947010] [2022-09-16 10:55:09,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792947010] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:55:09,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286740808] [2022-09-16 10:55:09,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:55:09,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:55:09,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:55:09,217 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:55:09,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-09-16 10:55:09,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:55:09,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 12 conjunts are in the unsatisfiable core [2022-09-16 10:55:09,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:55:09,362 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 37 proven. 25 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-09-16 10:55:09,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:55:09,457 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 37 proven. 25 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-09-16 10:55:09,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286740808] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:55:09,457 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:55:09,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2022-09-16 10:55:09,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741200554] [2022-09-16 10:55:09,457 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:55:09,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 10:55:09,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:55:09,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 10:55:09,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-09-16 10:55:09,458 INFO L87 Difference]: Start difference. First operand 13120 states and 43862 transitions. Second operand has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 7 states have internal predecessors, (79), 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 10:55:09,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:55:09,683 INFO L93 Difference]: Finished difference Result 13294 states and 44249 transitions. [2022-09-16 10:55:09,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 10:55:09,684 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 7 states have internal predecessors, (79), 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 92 [2022-09-16 10:55:09,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:55:09,684 INFO L225 Difference]: With dead ends: 13294 [2022-09-16 10:55:09,684 INFO L226 Difference]: Without dead ends: 0 [2022-09-16 10:55:09,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 179 SyntacticMatches, 10 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-09-16 10:55:09,685 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 128 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:55:09,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 462 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:55:09,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-09-16 10:55:09,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-09-16 10:55:09,685 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 10:55:09,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-09-16 10:55:09,685 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 92 [2022-09-16 10:55:09,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:55:09,686 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-16 10:55:09,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 7 states have internal predecessors, (79), 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 10:55:09,686 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-09-16 10:55:09,686 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-09-16 10:55:09,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 19 remaining) [2022-09-16 10:55:09,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 19 remaining) [2022-09-16 10:55:09,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 19 remaining) [2022-09-16 10:55:09,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 19 remaining) [2022-09-16 10:55:09,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 19 remaining) [2022-09-16 10:55:09,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 19 remaining) [2022-09-16 10:55:09,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 19 remaining) [2022-09-16 10:55:09,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 19 remaining) [2022-09-16 10:55:09,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 19 remaining) [2022-09-16 10:55:09,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 19 remaining) [2022-09-16 10:55:09,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 19 remaining) [2022-09-16 10:55:09,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 19 remaining) [2022-09-16 10:55:09,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 19 remaining) [2022-09-16 10:55:09,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 19 remaining) [2022-09-16 10:55:09,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 19 remaining) [2022-09-16 10:55:09,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 19 remaining) [2022-09-16 10:55:09,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 19 remaining) [2022-09-16 10:55:09,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 19 remaining) [2022-09-16 10:55:09,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 19 remaining) [2022-09-16 10:55:09,711 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-09-16 10:55:09,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-09-16 10:55:09,912 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:55:09,915 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 10:55:09,915 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 10:55:09,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 10:55:09 BasicIcfg [2022-09-16 10:55:09,917 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 10:55:09,917 INFO L158 Benchmark]: Toolchain (without parser) took 15667.17ms. Allocated memory was 196.1MB in the beginning and 5.9GB in the end (delta: 5.7GB). Free memory was 140.0MB in the beginning and 4.7GB in the end (delta: -4.6GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2022-09-16 10:55:09,918 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 196.1MB. Free memory was 156.5MB in the beginning and 156.4MB in the end (delta: 82.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 10:55:09,918 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.74ms. Allocated memory is still 196.1MB. Free memory was 139.8MB in the beginning and 171.1MB in the end (delta: -31.3MB). Peak memory consumption was 13.2MB. Max. memory is 8.0GB. [2022-09-16 10:55:09,918 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.75ms. Allocated memory is still 196.1MB. Free memory was 171.1MB in the beginning and 169.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 10:55:09,918 INFO L158 Benchmark]: Boogie Preprocessor took 15.74ms. Allocated memory is still 196.1MB. Free memory was 169.4MB in the beginning and 168.1MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-16 10:55:09,918 INFO L158 Benchmark]: RCFGBuilder took 348.49ms. Allocated memory is still 196.1MB. Free memory was 168.1MB in the beginning and 151.6MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-09-16 10:55:09,918 INFO L158 Benchmark]: TraceAbstraction took 15040.44ms. Allocated memory was 196.1MB in the beginning and 5.9GB in the end (delta: 5.7GB). Free memory was 150.8MB in the beginning and 4.7GB in the end (delta: -4.6GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2022-09-16 10:55:09,919 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 196.1MB. Free memory was 156.5MB in the beginning and 156.4MB in the end (delta: 82.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 221.74ms. Allocated memory is still 196.1MB. Free memory was 139.8MB in the beginning and 171.1MB in the end (delta: -31.3MB). Peak memory consumption was 13.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.75ms. Allocated memory is still 196.1MB. Free memory was 171.1MB in the beginning and 169.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.74ms. Allocated memory is still 196.1MB. Free memory was 169.4MB in the beginning and 168.1MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 348.49ms. Allocated memory is still 196.1MB. Free memory was 168.1MB in the beginning and 151.6MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 15040.44ms. Allocated memory was 196.1MB in the beginning and 5.9GB in the end (delta: 5.7GB). Free memory was 150.8MB in the beginning and 4.7GB in the end (delta: -4.6GB). Peak memory consumption was 1.1GB. 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: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 77]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 77]: 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, 141 locations, 19 error locations. Started 1 CEGAR loops. OverallTime: 14.9s, OverallIterations: 15, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3365 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3365 mSDsluCounter, 4938 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3735 mSDsCounter, 322 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1414 IncrementalHoareTripleChecker+Invalid, 1736 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 322 mSolverCounterUnsat, 1493 mSDtfsCounter, 1414 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 679 GetRequests, 573 SyntacticMatches, 15 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34684occurred in iteration=10, InterpolantAutomatonStates: 98, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.0s AutomataMinimizationTime, 15 MinimizatonAttempts, 58354 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 1124 NumberOfCodeBlocks, 1124 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1394 ConstructedInterpolants, 0 QuantifiedInterpolants, 6057 SizeOfPredicates, 11 NumberOfNonLiveVariables, 719 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 23 InterpolantComputations, 11 PerfectInterpolantSequences, 291/415 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 10:55:09,943 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...