/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/pthread/stack-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:16:24,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:16:24,430 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:16:24,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:16:24,462 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:16:24,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:16:24,469 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:16:24,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:16:24,476 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:16:24,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:16:24,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:16:24,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:16:24,483 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:16:24,483 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:16:24,484 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:16:24,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:16:24,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:16:24,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:16:24,487 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:16:24,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:16:24,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:16:24,492 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:16:24,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:16:24,495 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:16:24,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 10:16:24,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 10:16:24,504 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 10:16:24,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 10:16:24,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 10:16:24,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-09-16 10:16:24,511 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:16:24,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:16:24,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:16:24,514 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 10:16:24,550 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:16:24,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:16:24,550 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:16:24,551 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:16:24,551 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:16:24,551 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:16:24,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:16:24,552 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:16:24,552 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:16:24,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:16:24,553 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:16:24,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:16:24,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:16:24,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:16:24,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:16:24,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:16:24,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:16:24,554 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:16:24,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:16:24,554 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:16:24,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:16:24,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:16:24,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:16:24,556 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:16:24,556 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:16:24,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:16:24,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:16:24,556 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:16:24,556 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:16:24,556 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:16:24,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:16:24,557 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:16:24,557 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:16:24,557 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:16:24,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:16:24,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:16:24,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:16:24,821 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:16:24,823 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:16:24,824 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack-1.i [2022-09-16 10:16:24,874 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/329eec5a6/6ec4e2039bb543c9872cf237832d545b/FLAG4616d7895 [2022-09-16 10:16:25,345 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:16:25,346 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack-1.i [2022-09-16 10:16:25,358 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/329eec5a6/6ec4e2039bb543c9872cf237832d545b/FLAG4616d7895 [2022-09-16 10:16:25,666 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/329eec5a6/6ec4e2039bb543c9872cf237832d545b [2022-09-16 10:16:25,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:16:25,670 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:16:25,671 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:16:25,671 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:16:25,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:16:25,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:16:25" (1/1) ... [2022-09-16 10:16:25,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58510888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:16:25, skipping insertion in model container [2022-09-16 10:16:25,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:16:25" (1/1) ... [2022-09-16 10:16:25,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:16:25,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:16:26,118 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack-1.i[41520,41533] [2022-09-16 10:16:26,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:16:26,165 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:16:26,207 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack-1.i[41520,41533] [2022-09-16 10:16:26,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:16:26,275 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:16:26,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:16:26 WrapperNode [2022-09-16 10:16:26,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:16:26,276 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:16:26,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:16:26,277 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:16:26,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:16:26" (1/1) ... [2022-09-16 10:16:26,310 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:16:26" (1/1) ... [2022-09-16 10:16:26,349 INFO L138 Inliner]: procedures = 277, calls = 45, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 162 [2022-09-16 10:16:26,350 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:16:26,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:16:26,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:16:26,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:16:26,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:16:26" (1/1) ... [2022-09-16 10:16:26,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:16:26" (1/1) ... [2022-09-16 10:16:26,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:16:26" (1/1) ... [2022-09-16 10:16:26,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:16:26" (1/1) ... [2022-09-16 10:16:26,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:16:26" (1/1) ... [2022-09-16 10:16:26,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:16:26" (1/1) ... [2022-09-16 10:16:26,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:16:26" (1/1) ... [2022-09-16 10:16:26,399 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:16:26,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:16:26,400 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:16:26,400 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:16:26,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:16:26" (1/1) ... [2022-09-16 10:16:26,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:16:26,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:16:26,432 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 10:16:26,452 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 10:16:26,479 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-09-16 10:16:26,479 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-09-16 10:16:26,479 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-09-16 10:16:26,479 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-09-16 10:16:26,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:16:26,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:16:26,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 10:16:26,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:16:26,480 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-09-16 10:16:26,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:16:26,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:16:26,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:16:26,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:16:26,481 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 10:16:26,611 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:16:26,612 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:16:26,841 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:16:26,850 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:16:26,850 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-09-16 10:16:26,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:16:26 BoogieIcfgContainer [2022-09-16 10:16:26,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:16:26,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:16:26,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:16:26,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:16:26,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:16:25" (1/3) ... [2022-09-16 10:16:26,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fbb19b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:16:26, skipping insertion in model container [2022-09-16 10:16:26,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:16:26" (2/3) ... [2022-09-16 10:16:26,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fbb19b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:16:26, skipping insertion in model container [2022-09-16 10:16:26,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:16:26" (3/3) ... [2022-09-16 10:16:26,860 INFO L112 eAbstractionObserver]: Analyzing ICFG stack-1.i [2022-09-16 10:16:26,867 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:16:26,876 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:16:26,876 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 10:16:26,876 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:16:27,044 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-16 10:16:27,073 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 187 places, 190 transitions, 396 flow [2022-09-16 10:16:27,599 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 15110 states, 15086 states have (on average 2.8517168235450088) internal successors, (43021), 15109 states have internal predecessors, (43021), 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 10:16:27,619 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:16:27,626 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;@e8973ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:16:27,626 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-09-16 10:16:27,687 INFO L276 IsEmpty]: Start isEmpty. Operand has 15110 states, 15086 states have (on average 2.8517168235450088) internal successors, (43021), 15109 states have internal predecessors, (43021), 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 10:16:27,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-09-16 10:16:27,713 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:16:27,714 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:16:27,715 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:16:27,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:16:27,722 INFO L85 PathProgramCache]: Analyzing trace with hash 282001312, now seen corresponding path program 1 times [2022-09-16 10:16:27,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:16:27,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683596392] [2022-09-16 10:16:27,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:16:27,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:16:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:16:28,090 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 10:16:28,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:16:28,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683596392] [2022-09-16 10:16:28,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683596392] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:16:28,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:16:28,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:16:28,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014267907] [2022-09-16 10:16:28,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:16:28,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:16:28,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:16:28,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:16:28,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:16:28,157 INFO L87 Difference]: Start difference. First operand has 15110 states, 15086 states have (on average 2.8517168235450088) internal successors, (43021), 15109 states have internal predecessors, (43021), 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 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:16:28,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:16:28,669 INFO L93 Difference]: Finished difference Result 25870 states and 72002 transitions. [2022-09-16 10:16:28,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:16:28,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-09-16 10:16:28,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:16:28,907 INFO L225 Difference]: With dead ends: 25870 [2022-09-16 10:16:28,907 INFO L226 Difference]: Without dead ends: 25636 [2022-09-16 10:16:28,909 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 10:16:28,915 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 253 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:16:28,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 755 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:16:28,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25636 states. [2022-09-16 10:16:29,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25636 to 23944. [2022-09-16 10:16:29,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23944 states, 23908 states have (on average 2.820562154927221) internal successors, (67434), 23943 states have internal predecessors, (67434), 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 10:16:29,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23944 states to 23944 states and 67434 transitions. [2022-09-16 10:16:29,882 INFO L78 Accepts]: Start accepts. Automaton has 23944 states and 67434 transitions. Word has length 53 [2022-09-16 10:16:29,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:16:29,883 INFO L495 AbstractCegarLoop]: Abstraction has 23944 states and 67434 transitions. [2022-09-16 10:16:29,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:16:29,884 INFO L276 IsEmpty]: Start isEmpty. Operand 23944 states and 67434 transitions. [2022-09-16 10:16:29,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-09-16 10:16:29,891 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:16:29,892 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:16:29,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:16:29,893 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:16:29,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:16:29,894 INFO L85 PathProgramCache]: Analyzing trace with hash -235825589, now seen corresponding path program 1 times [2022-09-16 10:16:29,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:16:29,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871610083] [2022-09-16 10:16:29,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:16:29,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:16:30,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:16:30,191 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 10:16:30,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:16:30,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871610083] [2022-09-16 10:16:30,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871610083] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:16:30,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:16:30,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:16:30,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778040676] [2022-09-16 10:16:30,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:16:30,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:16:30,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:16:30,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:16:30,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:16:30,199 INFO L87 Difference]: Start difference. First operand 23944 states and 67434 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:16:30,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:16:30,522 INFO L93 Difference]: Finished difference Result 32603 states and 91088 transitions. [2022-09-16 10:16:30,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:16:30,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-09-16 10:16:30,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:16:30,651 INFO L225 Difference]: With dead ends: 32603 [2022-09-16 10:16:30,651 INFO L226 Difference]: Without dead ends: 32603 [2022-09-16 10:16:30,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 10:16:30,653 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 90 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:16:30,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 307 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:16:30,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32603 states. [2022-09-16 10:16:31,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32603 to 31965. [2022-09-16 10:16:31,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31965 states, 31929 states have (on average 2.811738544896489) internal successors, (89776), 31964 states have internal predecessors, (89776), 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 10:16:31,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31965 states to 31965 states and 89776 transitions. [2022-09-16 10:16:31,898 INFO L78 Accepts]: Start accepts. Automaton has 31965 states and 89776 transitions. Word has length 60 [2022-09-16 10:16:31,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:16:31,899 INFO L495 AbstractCegarLoop]: Abstraction has 31965 states and 89776 transitions. [2022-09-16 10:16:31,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:16:31,899 INFO L276 IsEmpty]: Start isEmpty. Operand 31965 states and 89776 transitions. [2022-09-16 10:16:31,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-09-16 10:16:31,903 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:16:31,903 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:16:31,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 10:16:31,904 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:16:31,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:16:31,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1042250548, now seen corresponding path program 1 times [2022-09-16 10:16:31,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:16:31,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355486776] [2022-09-16 10:16:31,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:16:31,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:16:31,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:16:32,015 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:16:32,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:16:32,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355486776] [2022-09-16 10:16:32,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355486776] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:16:32,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:16:32,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:16:32,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451896475] [2022-09-16 10:16:32,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:16:32,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:16:32,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:16:32,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:16:32,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:16:32,018 INFO L87 Difference]: Start difference. First operand 31965 states and 89776 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 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 10:16:32,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:16:32,240 INFO L93 Difference]: Finished difference Result 31574 states and 88576 transitions. [2022-09-16 10:16:32,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:16:32,241 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 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 63 [2022-09-16 10:16:32,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:16:32,571 INFO L225 Difference]: With dead ends: 31574 [2022-09-16 10:16:32,571 INFO L226 Difference]: Without dead ends: 31574 [2022-09-16 10:16:32,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 10:16:32,578 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 255 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:16:32,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 707 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:16:32,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31574 states. [2022-09-16 10:16:33,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31574 to 31574. [2022-09-16 10:16:33,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31574 states, 31545 states have (on average 2.8079251862418766) internal successors, (88576), 31573 states have internal predecessors, (88576), 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 10:16:33,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31574 states to 31574 states and 88576 transitions. [2022-09-16 10:16:33,580 INFO L78 Accepts]: Start accepts. Automaton has 31574 states and 88576 transitions. Word has length 63 [2022-09-16 10:16:33,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:16:33,580 INFO L495 AbstractCegarLoop]: Abstraction has 31574 states and 88576 transitions. [2022-09-16 10:16:33,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 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 10:16:33,581 INFO L276 IsEmpty]: Start isEmpty. Operand 31574 states and 88576 transitions. [2022-09-16 10:16:33,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-09-16 10:16:33,586 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:16:33,586 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:16:33,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 10:16:33,586 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:16:33,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:16:33,590 INFO L85 PathProgramCache]: Analyzing trace with hash -2049970832, now seen corresponding path program 1 times [2022-09-16 10:16:33,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:16:33,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395899734] [2022-09-16 10:16:33,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:16:33,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:16:33,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:16:33,693 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:16:33,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:16:33,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395899734] [2022-09-16 10:16:33,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395899734] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:16:33,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439264955] [2022-09-16 10:16:33,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:16:33,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:16:33,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:16:33,696 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 10:16:33,698 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 10:16:33,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:16:33,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:16:33,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:16:33,862 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:16:33,863 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:16:33,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439264955] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:16:33,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:16:33,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 10:16:33,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568816562] [2022-09-16 10:16:33,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:16:33,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:16:33,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:16:33,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:16:33,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:16:33,865 INFO L87 Difference]: Start difference. First operand 31574 states and 88576 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 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 10:16:34,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:16:34,216 INFO L93 Difference]: Finished difference Result 33681 states and 93462 transitions. [2022-09-16 10:16:34,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:16:34,216 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 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 64 [2022-09-16 10:16:34,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:16:34,303 INFO L225 Difference]: With dead ends: 33681 [2022-09-16 10:16:34,303 INFO L226 Difference]: Without dead ends: 32594 [2022-09-16 10:16:34,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:16:34,304 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 437 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 1622 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:16:34,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 1622 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:16:34,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32594 states. [2022-09-16 10:16:34,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32594 to 18237. [2022-09-16 10:16:34,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18237 states, 18215 states have (on average 2.767828712599506) internal successors, (50416), 18236 states have internal predecessors, (50416), 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 10:16:34,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18237 states to 18237 states and 50416 transitions. [2022-09-16 10:16:34,878 INFO L78 Accepts]: Start accepts. Automaton has 18237 states and 50416 transitions. Word has length 64 [2022-09-16 10:16:34,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:16:34,879 INFO L495 AbstractCegarLoop]: Abstraction has 18237 states and 50416 transitions. [2022-09-16 10:16:34,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 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 10:16:34,879 INFO L276 IsEmpty]: Start isEmpty. Operand 18237 states and 50416 transitions. [2022-09-16 10:16:34,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-09-16 10:16:34,884 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:16:34,884 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:16:34,913 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 10:16:35,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:16:35,108 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:16:35,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:16:35,108 INFO L85 PathProgramCache]: Analyzing trace with hash -2098653529, now seen corresponding path program 1 times [2022-09-16 10:16:35,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:16:35,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123879955] [2022-09-16 10:16:35,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:16:35,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:16:35,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:16:35,166 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 10:16:35,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:16:35,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123879955] [2022-09-16 10:16:35,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123879955] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:16:35,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:16:35,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:16:35,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440591573] [2022-09-16 10:16:35,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:16:35,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:16:35,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:16:35,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:16:35,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:16:35,171 INFO L87 Difference]: Start difference. First operand 18237 states and 50416 transitions. Second operand has 4 states, 3 states have (on average 23.666666666666668) internal successors, (71), 4 states have internal predecessors, (71), 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 10:16:35,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:16:35,462 INFO L93 Difference]: Finished difference Result 19211 states and 52915 transitions. [2022-09-16 10:16:35,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:16:35,462 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 23.666666666666668) internal successors, (71), 4 states have internal predecessors, (71), 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 71 [2022-09-16 10:16:35,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:16:35,502 INFO L225 Difference]: With dead ends: 19211 [2022-09-16 10:16:35,502 INFO L226 Difference]: Without dead ends: 19211 [2022-09-16 10:16:35,503 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 10:16:35,503 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 171 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:16:35,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 494 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:16:35,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19211 states. [2022-09-16 10:16:35,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19211 to 18641. [2022-09-16 10:16:35,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18641 states, 18619 states have (on average 2.763198882861593) internal successors, (51448), 18640 states have internal predecessors, (51448), 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 10:16:36,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18641 states to 18641 states and 51448 transitions. [2022-09-16 10:16:36,066 INFO L78 Accepts]: Start accepts. Automaton has 18641 states and 51448 transitions. Word has length 71 [2022-09-16 10:16:36,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:16:36,067 INFO L495 AbstractCegarLoop]: Abstraction has 18641 states and 51448 transitions. [2022-09-16 10:16:36,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 23.666666666666668) internal successors, (71), 4 states have internal predecessors, (71), 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 10:16:36,067 INFO L276 IsEmpty]: Start isEmpty. Operand 18641 states and 51448 transitions. [2022-09-16 10:16:36,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-09-16 10:16:36,074 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:16:36,074 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:16:36,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 10:16:36,075 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:16:36,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:16:36,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1636998639, now seen corresponding path program 1 times [2022-09-16 10:16:36,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:16:36,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179269146] [2022-09-16 10:16:36,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:16:36,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:16:36,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:16:36,166 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 10:16:36,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:16:36,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179269146] [2022-09-16 10:16:36,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179269146] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:16:36,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:16:36,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:16:36,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625197859] [2022-09-16 10:16:36,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:16:36,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:16:36,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:16:36,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:16:36,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:16:36,168 INFO L87 Difference]: Start difference. First operand 18641 states and 51448 transitions. Second operand has 4 states, 3 states have (on average 28.0) internal successors, (84), 4 states have internal predecessors, (84), 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 10:16:36,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:16:36,316 INFO L93 Difference]: Finished difference Result 25079 states and 69204 transitions. [2022-09-16 10:16:36,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:16:36,317 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 28.0) internal successors, (84), 4 states have internal predecessors, (84), 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 84 [2022-09-16 10:16:36,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:16:36,370 INFO L225 Difference]: With dead ends: 25079 [2022-09-16 10:16:36,370 INFO L226 Difference]: Without dead ends: 25079 [2022-09-16 10:16:36,370 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 10:16:36,371 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 197 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:16:36,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 607 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:16:36,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25079 states. [2022-09-16 10:16:36,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25079 to 23929. [2022-09-16 10:16:36,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23929 states, 23907 states have (on average 2.7698163717739575) internal successors, (66218), 23928 states have internal predecessors, (66218), 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 10:16:36,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23929 states to 23929 states and 66218 transitions. [2022-09-16 10:16:36,844 INFO L78 Accepts]: Start accepts. Automaton has 23929 states and 66218 transitions. Word has length 84 [2022-09-16 10:16:36,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:16:36,844 INFO L495 AbstractCegarLoop]: Abstraction has 23929 states and 66218 transitions. [2022-09-16 10:16:36,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 28.0) internal successors, (84), 4 states have internal predecessors, (84), 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 10:16:36,845 INFO L276 IsEmpty]: Start isEmpty. Operand 23929 states and 66218 transitions. [2022-09-16 10:16:36,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-09-16 10:16:36,855 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:16:36,855 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:16:36,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 10:16:36,856 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:16:36,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:16:36,856 INFO L85 PathProgramCache]: Analyzing trace with hash 91024683, now seen corresponding path program 1 times [2022-09-16 10:16:36,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:16:36,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284476379] [2022-09-16 10:16:36,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:16:36,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:16:36,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:16:36,900 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 10:16:36,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:16:36,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284476379] [2022-09-16 10:16:36,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284476379] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:16:36,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:16:36,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:16:36,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866420692] [2022-09-16 10:16:36,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:16:36,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:16:36,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:16:36,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:16:36,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:16:36,903 INFO L87 Difference]: Start difference. First operand 23929 states and 66218 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 10:16:36,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:16:36,960 INFO L93 Difference]: Finished difference Result 11191 states and 29757 transitions. [2022-09-16 10:16:36,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:16:36,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 96 [2022-09-16 10:16:36,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:16:36,976 INFO L225 Difference]: With dead ends: 11191 [2022-09-16 10:16:36,977 INFO L226 Difference]: Without dead ends: 10839 [2022-09-16 10:16:36,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 10:16:36,978 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 120 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:16:36,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 265 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:16:37,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10839 states. [2022-09-16 10:16:37,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10839 to 10775. [2022-09-16 10:16:37,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10775 states, 10759 states have (on average 2.657217213495678) internal successors, (28589), 10774 states have internal predecessors, (28589), 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 10:16:37,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10775 states to 10775 states and 28589 transitions. [2022-09-16 10:16:37,259 INFO L78 Accepts]: Start accepts. Automaton has 10775 states and 28589 transitions. Word has length 96 [2022-09-16 10:16:37,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:16:37,259 INFO L495 AbstractCegarLoop]: Abstraction has 10775 states and 28589 transitions. [2022-09-16 10:16:37,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 10:16:37,259 INFO L276 IsEmpty]: Start isEmpty. Operand 10775 states and 28589 transitions. [2022-09-16 10:16:37,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-09-16 10:16:37,269 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:16:37,269 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:16:37,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 10:16:37,270 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:16:37,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:16:37,270 INFO L85 PathProgramCache]: Analyzing trace with hash 746816072, now seen corresponding path program 1 times [2022-09-16 10:16:37,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:16:37,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737497733] [2022-09-16 10:16:37,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:16:37,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:16:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:16:37,337 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 10:16:37,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:16:37,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737497733] [2022-09-16 10:16:37,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737497733] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:16:37,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:16:37,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:16:37,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493334887] [2022-09-16 10:16:37,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:16:37,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:16:37,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:16:37,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:16:37,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:16:37,339 INFO L87 Difference]: Start difference. First operand 10775 states and 28589 transitions. Second operand has 6 states, 5 states have (on average 21.0) internal successors, (105), 6 states have internal predecessors, (105), 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 10:16:37,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:16:37,486 INFO L93 Difference]: Finished difference Result 15590 states and 41273 transitions. [2022-09-16 10:16:37,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 10:16:37,487 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.0) internal successors, (105), 6 states have internal predecessors, (105), 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 105 [2022-09-16 10:16:37,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:16:37,519 INFO L225 Difference]: With dead ends: 15590 [2022-09-16 10:16:37,519 INFO L226 Difference]: Without dead ends: 15590 [2022-09-16 10:16:37,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-09-16 10:16:37,520 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 321 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:16:37,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 776 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:16:37,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15590 states. [2022-09-16 10:16:37,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15590 to 14379. [2022-09-16 10:16:37,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14379 states, 14363 states have (on average 2.664067395390935) internal successors, (38264), 14378 states have internal predecessors, (38264), 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 10:16:37,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14379 states to 14379 states and 38264 transitions. [2022-09-16 10:16:37,890 INFO L78 Accepts]: Start accepts. Automaton has 14379 states and 38264 transitions. Word has length 105 [2022-09-16 10:16:37,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:16:37,891 INFO L495 AbstractCegarLoop]: Abstraction has 14379 states and 38264 transitions. [2022-09-16 10:16:37,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.0) internal successors, (105), 6 states have internal predecessors, (105), 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 10:16:37,891 INFO L276 IsEmpty]: Start isEmpty. Operand 14379 states and 38264 transitions. [2022-09-16 10:16:37,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-09-16 10:16:37,900 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:16:37,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:16:37,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-16 10:16:37,900 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:16:37,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:16:37,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1676462317, now seen corresponding path program 1 times [2022-09-16 10:16:37,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:16:37,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075650974] [2022-09-16 10:16:37,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:16:37,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:16:37,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:16:37,942 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 10:16:37,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:16:37,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075650974] [2022-09-16 10:16:37,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075650974] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:16:37,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:16:37,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:16:37,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996170401] [2022-09-16 10:16:37,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:16:37,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:16:37,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:16:37,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:16:37,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:16:37,944 INFO L87 Difference]: Start difference. First operand 14379 states and 38264 transitions. Second operand has 4 states, 3 states have (on average 35.333333333333336) internal successors, (106), 4 states have internal predecessors, (106), 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 10:16:38,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:16:38,045 INFO L93 Difference]: Finished difference Result 15004 states and 39652 transitions. [2022-09-16 10:16:38,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:16:38,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 35.333333333333336) internal successors, (106), 4 states have internal predecessors, (106), 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 106 [2022-09-16 10:16:38,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:16:38,074 INFO L225 Difference]: With dead ends: 15004 [2022-09-16 10:16:38,075 INFO L226 Difference]: Without dead ends: 14356 [2022-09-16 10:16:38,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 10:16:38,075 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 117 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:16:38,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 604 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:16:38,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14356 states. [2022-09-16 10:16:38,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14356 to 11994. [2022-09-16 10:16:38,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11994 states, 11982 states have (on average 2.6550659322316807) internal successors, (31813), 11993 states have internal predecessors, (31813), 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 10:16:38,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11994 states to 11994 states and 31813 transitions. [2022-09-16 10:16:38,333 INFO L78 Accepts]: Start accepts. Automaton has 11994 states and 31813 transitions. Word has length 106 [2022-09-16 10:16:38,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:16:38,334 INFO L495 AbstractCegarLoop]: Abstraction has 11994 states and 31813 transitions. [2022-09-16 10:16:38,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 35.333333333333336) internal successors, (106), 4 states have internal predecessors, (106), 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 10:16:38,334 INFO L276 IsEmpty]: Start isEmpty. Operand 11994 states and 31813 transitions. [2022-09-16 10:16:38,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-09-16 10:16:38,342 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:16:38,342 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:16:38,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-16 10:16:38,342 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:16:38,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:16:38,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1586547310, now seen corresponding path program 1 times [2022-09-16 10:16:38,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:16:38,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042987356] [2022-09-16 10:16:38,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:16:38,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:16:38,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:16:38,411 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:16:38,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:16:38,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042987356] [2022-09-16 10:16:38,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042987356] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:16:38,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28400901] [2022-09-16 10:16:38,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:16:38,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:16:38,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:16:38,413 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 10:16:38,414 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 10:16:38,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:16:38,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:16:38,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:16:38,662 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:16:38,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:16:38,818 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:16:38,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28400901] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:16:38,818 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:16:38,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-09-16 10:16:38,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895825304] [2022-09-16 10:16:38,818 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:16:38,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-09-16 10:16:38,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:16:38,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-09-16 10:16:38,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-09-16 10:16:38,820 INFO L87 Difference]: Start difference. First operand 11994 states and 31813 transitions. Second operand has 12 states, 11 states have (on average 26.09090909090909) internal successors, (287), 12 states have internal predecessors, (287), 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 10:16:39,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:16:39,125 INFO L93 Difference]: Finished difference Result 25456 states and 67416 transitions. [2022-09-16 10:16:39,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-09-16 10:16:39,126 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 26.09090909090909) internal successors, (287), 12 states have internal predecessors, (287), 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 117 [2022-09-16 10:16:39,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:16:39,186 INFO L225 Difference]: With dead ends: 25456 [2022-09-16 10:16:39,186 INFO L226 Difference]: Without dead ends: 25456 [2022-09-16 10:16:39,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=177, Invalid=329, Unknown=0, NotChecked=0, Total=506 [2022-09-16 10:16:39,187 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 939 mSDsluCounter, 1020 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:16:39,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 1172 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:16:39,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25456 states. [2022-09-16 10:16:39,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25456 to 20938. [2022-09-16 10:16:39,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20938 states, 20926 states have (on average 2.679394055242282) internal successors, (56069), 20937 states have internal predecessors, (56069), 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 10:16:39,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20938 states to 20938 states and 56069 transitions. [2022-09-16 10:16:39,654 INFO L78 Accepts]: Start accepts. Automaton has 20938 states and 56069 transitions. Word has length 117 [2022-09-16 10:16:39,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:16:39,654 INFO L495 AbstractCegarLoop]: Abstraction has 20938 states and 56069 transitions. [2022-09-16 10:16:39,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 26.09090909090909) internal successors, (287), 12 states have internal predecessors, (287), 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 10:16:39,654 INFO L276 IsEmpty]: Start isEmpty. Operand 20938 states and 56069 transitions. [2022-09-16 10:16:39,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-09-16 10:16:39,663 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:16:39,663 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:16:39,679 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 10:16:39,863 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,SelfDestructingSolverStorable9 [2022-09-16 10:16:39,864 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:16:39,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:16:39,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1938325832, now seen corresponding path program 1 times [2022-09-16 10:16:39,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:16:39,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440838545] [2022-09-16 10:16:39,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:16:39,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:16:39,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:16:39,929 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:16:39,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:16:39,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440838545] [2022-09-16 10:16:39,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440838545] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:16:39,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845358220] [2022-09-16 10:16:39,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:16:39,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:16:39,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:16:39,931 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 10:16:39,933 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 10:16:40,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:16:40,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:16:40,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:16:40,161 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:16:40,161 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:16:40,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845358220] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:16:40,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:16:40,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 10:16:40,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924178382] [2022-09-16 10:16:40,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:16:40,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:16:40,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:16:40,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:16:40,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:16:40,163 INFO L87 Difference]: Start difference. First operand 20938 states and 56069 transitions. Second operand has 6 states, 5 states have (on average 23.6) internal successors, (118), 6 states have internal predecessors, (118), 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 10:16:40,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:16:40,452 INFO L93 Difference]: Finished difference Result 27987 states and 75114 transitions. [2022-09-16 10:16:40,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 10:16:40,452 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.6) internal successors, (118), 6 states have internal predecessors, (118), 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 118 [2022-09-16 10:16:40,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:16:40,498 INFO L225 Difference]: With dead ends: 27987 [2022-09-16 10:16:40,498 INFO L226 Difference]: Without dead ends: 27987 [2022-09-16 10:16:40,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:16:40,499 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 181 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:16:40,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 731 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:16:40,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27987 states. [2022-09-16 10:16:40,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27987 to 26966. [2022-09-16 10:16:40,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26966 states, 26954 states have (on average 2.686799732878237) internal successors, (72420), 26965 states have internal predecessors, (72420), 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 10:16:40,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26966 states to 26966 states and 72420 transitions. [2022-09-16 10:16:40,896 INFO L78 Accepts]: Start accepts. Automaton has 26966 states and 72420 transitions. Word has length 118 [2022-09-16 10:16:40,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:16:40,896 INFO L495 AbstractCegarLoop]: Abstraction has 26966 states and 72420 transitions. [2022-09-16 10:16:40,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.6) internal successors, (118), 6 states have internal predecessors, (118), 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 10:16:40,897 INFO L276 IsEmpty]: Start isEmpty. Operand 26966 states and 72420 transitions. [2022-09-16 10:16:40,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-09-16 10:16:40,906 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:16:40,907 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:16:40,923 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 10:16:41,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:16:41,108 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:16:41,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:16:41,108 INFO L85 PathProgramCache]: Analyzing trace with hash 501225734, now seen corresponding path program 1 times [2022-09-16 10:16:41,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:16:41,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152755866] [2022-09-16 10:16:41,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:16:41,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:16:41,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:16:41,165 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:16:41,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:16:41,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152755866] [2022-09-16 10:16:41,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152755866] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:16:41,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:16:41,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:16:41,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101185957] [2022-09-16 10:16:41,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:16:41,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:16:41,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:16:41,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:16:41,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:16:41,168 INFO L87 Difference]: Start difference. First operand 26966 states and 72420 transitions. Second operand has 4 states, 3 states have (on average 43.333333333333336) internal successors, (130), 4 states have internal predecessors, (130), 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 10:16:41,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:16:41,309 INFO L93 Difference]: Finished difference Result 26684 states and 71369 transitions. [2022-09-16 10:16:41,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:16:41,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 43.333333333333336) internal successors, (130), 4 states have internal predecessors, (130), 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 130 [2022-09-16 10:16:41,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:16:41,359 INFO L225 Difference]: With dead ends: 26684 [2022-09-16 10:16:41,359 INFO L226 Difference]: Without dead ends: 26684 [2022-09-16 10:16:41,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 10:16:41,360 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 186 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:16:41,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 525 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:16:41,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26684 states. [2022-09-16 10:16:41,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26684 to 26684. [2022-09-16 10:16:41,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26684 states, 26675 states have (on average 2.6755014058106843) internal successors, (71369), 26683 states have internal predecessors, (71369), 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 10:16:41,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26684 states to 26684 states and 71369 transitions. [2022-09-16 10:16:41,874 INFO L78 Accepts]: Start accepts. Automaton has 26684 states and 71369 transitions. Word has length 130 [2022-09-16 10:16:41,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:16:41,875 INFO L495 AbstractCegarLoop]: Abstraction has 26684 states and 71369 transitions. [2022-09-16 10:16:41,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 43.333333333333336) internal successors, (130), 4 states have internal predecessors, (130), 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 10:16:41,875 INFO L276 IsEmpty]: Start isEmpty. Operand 26684 states and 71369 transitions. [2022-09-16 10:16:41,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-09-16 10:16:41,885 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:16:41,885 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:16:41,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-09-16 10:16:41,885 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:16:41,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:16:41,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1641870915, now seen corresponding path program 1 times [2022-09-16 10:16:41,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:16:41,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445880130] [2022-09-16 10:16:41,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:16:41,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:16:41,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:16:41,964 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:16:41,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:16:41,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445880130] [2022-09-16 10:16:41,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445880130] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:16:41,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744718588] [2022-09-16 10:16:41,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:16:41,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:16:41,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:16:41,967 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 10:16:41,969 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 10:16:42,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:16:42,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:16:42,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:16:42,206 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:16:42,206 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:16:42,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744718588] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:16:42,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:16:42,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 10:16:42,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976254945] [2022-09-16 10:16:42,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:16:42,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:16:42,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:16:42,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:16:42,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:16:42,208 INFO L87 Difference]: Start difference. First operand 26684 states and 71369 transitions. Second operand has 6 states, 5 states have (on average 26.2) internal successors, (131), 6 states have internal predecessors, (131), 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 10:16:42,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:16:42,374 INFO L93 Difference]: Finished difference Result 26506 states and 70604 transitions. [2022-09-16 10:16:42,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:16:42,375 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 26.2) internal successors, (131), 6 states have internal predecessors, (131), 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 131 [2022-09-16 10:16:42,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:16:42,418 INFO L225 Difference]: With dead ends: 26506 [2022-09-16 10:16:42,419 INFO L226 Difference]: Without dead ends: 26470 [2022-09-16 10:16:42,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:16:42,419 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 306 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:16:42,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 1024 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:16:42,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26470 states. [2022-09-16 10:16:42,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26470 to 26210. [2022-09-16 10:16:42,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26210 states, 26204 states have (on average 2.6637917875133565) internal successors, (69802), 26209 states have internal predecessors, (69802), 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 10:16:42,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26210 states to 26210 states and 69802 transitions. [2022-09-16 10:16:42,816 INFO L78 Accepts]: Start accepts. Automaton has 26210 states and 69802 transitions. Word has length 131 [2022-09-16 10:16:42,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:16:42,817 INFO L495 AbstractCegarLoop]: Abstraction has 26210 states and 69802 transitions. [2022-09-16 10:16:42,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 26.2) internal successors, (131), 6 states have internal predecessors, (131), 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 10:16:42,817 INFO L276 IsEmpty]: Start isEmpty. Operand 26210 states and 69802 transitions. [2022-09-16 10:16:42,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-09-16 10:16:42,832 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:16:42,833 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:16:42,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-09-16 10:16:43,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:16:43,035 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:16:43,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:16:43,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1032050061, now seen corresponding path program 1 times [2022-09-16 10:16:43,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:16:43,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698410996] [2022-09-16 10:16:43,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:16:43,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:16:43,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:16:43,144 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:16:43,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:16:43,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698410996] [2022-09-16 10:16:43,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698410996] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:16:43,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353135925] [2022-09-16 10:16:43,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:16:43,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:16:43,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:16:43,146 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:16:43,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-09-16 10:16:43,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:16:43,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 7 conjunts are in the unsatisfiable core [2022-09-16 10:16:43,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:16:43,440 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:16:43,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:16:43,659 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:16:43,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353135925] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:16:43,659 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:16:43,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-09-16 10:16:43,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839476565] [2022-09-16 10:16:43,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:16:43,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-09-16 10:16:43,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:16:43,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-09-16 10:16:43,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2022-09-16 10:16:43,661 INFO L87 Difference]: Start difference. First operand 26210 states and 69802 transitions. Second operand has 16 states, 15 states have (on average 24.333333333333332) internal successors, (365), 16 states have internal predecessors, (365), 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 10:16:44,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:16:44,108 INFO L93 Difference]: Finished difference Result 35350 states and 93817 transitions. [2022-09-16 10:16:44,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-09-16 10:16:44,109 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 24.333333333333332) internal successors, (365), 16 states have internal predecessors, (365), 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 151 [2022-09-16 10:16:44,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:16:44,167 INFO L225 Difference]: With dead ends: 35350 [2022-09-16 10:16:44,167 INFO L226 Difference]: Without dead ends: 33361 [2022-09-16 10:16:44,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=267, Invalid=725, Unknown=0, NotChecked=0, Total=992 [2022-09-16 10:16:44,168 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 1301 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1301 SdHoareTripleChecker+Valid, 1686 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:16:44,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1301 Valid, 1686 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:16:44,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33361 states. [2022-09-16 10:16:44,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33361 to 29157. [2022-09-16 10:16:44,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29157 states, 29153 states have (on average 2.655712962645354) internal successors, (77422), 29156 states have internal predecessors, (77422), 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 10:16:44,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29157 states to 29157 states and 77422 transitions. [2022-09-16 10:16:44,751 INFO L78 Accepts]: Start accepts. Automaton has 29157 states and 77422 transitions. Word has length 151 [2022-09-16 10:16:44,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:16:44,751 INFO L495 AbstractCegarLoop]: Abstraction has 29157 states and 77422 transitions. [2022-09-16 10:16:44,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 24.333333333333332) internal successors, (365), 16 states have internal predecessors, (365), 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 10:16:44,752 INFO L276 IsEmpty]: Start isEmpty. Operand 29157 states and 77422 transitions. [2022-09-16 10:16:44,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-09-16 10:16:44,769 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:16:44,769 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:16:44,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-09-16 10:16:44,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-09-16 10:16:44,978 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:16:44,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:16:44,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1118011242, now seen corresponding path program 1 times [2022-09-16 10:16:44,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:16:44,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111315121] [2022-09-16 10:16:44,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:16:44,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:16:45,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:16:45,094 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:16:45,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:16:45,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111315121] [2022-09-16 10:16:45,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111315121] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:16:45,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:16:45,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:16:45,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690755463] [2022-09-16 10:16:45,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:16:45,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:16:45,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:16:45,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:16:45,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:16:45,097 INFO L87 Difference]: Start difference. First operand 29157 states and 77422 transitions. Second operand has 6 states, 5 states have (on average 32.2) internal successors, (161), 6 states have internal predecessors, (161), 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 10:16:45,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:16:45,271 INFO L93 Difference]: Finished difference Result 30749 states and 81544 transitions. [2022-09-16 10:16:45,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 10:16:45,272 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 32.2) internal successors, (161), 6 states have internal predecessors, (161), 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 161 [2022-09-16 10:16:45,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:16:45,322 INFO L225 Difference]: With dead ends: 30749 [2022-09-16 10:16:45,323 INFO L226 Difference]: Without dead ends: 30749 [2022-09-16 10:16:45,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-09-16 10:16:45,323 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 233 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:16:45,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 714 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:16:45,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30749 states. [2022-09-16 10:16:45,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30749 to 20729. [2022-09-16 10:16:45,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20729 states, 20727 states have (on average 2.641240893520529) internal successors, (54745), 20728 states have internal predecessors, (54745), 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 10:16:45,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20729 states to 20729 states and 54745 transitions. [2022-09-16 10:16:45,733 INFO L78 Accepts]: Start accepts. Automaton has 20729 states and 54745 transitions. Word has length 161 [2022-09-16 10:16:45,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:16:45,734 INFO L495 AbstractCegarLoop]: Abstraction has 20729 states and 54745 transitions. [2022-09-16 10:16:45,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 32.2) internal successors, (161), 6 states have internal predecessors, (161), 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 10:16:45,734 INFO L276 IsEmpty]: Start isEmpty. Operand 20729 states and 54745 transitions. [2022-09-16 10:16:45,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-09-16 10:16:45,761 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:16:45,761 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:16:45,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-09-16 10:16:45,761 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:16:45,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:16:45,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1994434998, now seen corresponding path program 1 times [2022-09-16 10:16:45,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:16:45,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967021800] [2022-09-16 10:16:45,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:16:45,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:16:45,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:16:45,914 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 213 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-09-16 10:16:45,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:16:45,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967021800] [2022-09-16 10:16:45,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967021800] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:16:45,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567497546] [2022-09-16 10:16:45,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:16:45,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:16:45,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:16:45,916 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:16:45,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-09-16 10:16:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:16:46,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 11 conjunts are in the unsatisfiable core [2022-09-16 10:16:46,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:16:46,347 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-09-16 10:16:46,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:16:46,678 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-09-16 10:16:46,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567497546] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:16:46,679 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:16:46,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 17 [2022-09-16 10:16:46,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436351207] [2022-09-16 10:16:46,679 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:16:46,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 10:16:46,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:16:46,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 10:16:46,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-09-16 10:16:46,681 INFO L87 Difference]: Start difference. First operand 20729 states and 54745 transitions. Second operand has 18 states, 17 states have (on average 27.941176470588236) internal successors, (475), 18 states have internal predecessors, (475), 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 10:16:47,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:16:47,157 INFO L93 Difference]: Finished difference Result 42421 states and 112212 transitions. [2022-09-16 10:16:47,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-09-16 10:16:47,158 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 27.941176470588236) internal successors, (475), 18 states have internal predecessors, (475), 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 252 [2022-09-16 10:16:47,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:16:47,247 INFO L225 Difference]: With dead ends: 42421 [2022-09-16 10:16:47,247 INFO L226 Difference]: Without dead ends: 42421 [2022-09-16 10:16:47,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 497 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=329, Invalid=931, Unknown=0, NotChecked=0, Total=1260 [2022-09-16 10:16:47,248 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 966 mSDsluCounter, 1553 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 966 SdHoareTripleChecker+Valid, 1703 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:16:47,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [966 Valid, 1703 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:16:47,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42421 states. [2022-09-16 10:16:47,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42421 to 29451. [2022-09-16 10:16:47,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29451 states, 29449 states have (on average 2.654113891812965) internal successors, (78161), 29450 states have internal predecessors, (78161), 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 10:16:47,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29451 states to 29451 states and 78161 transitions. [2022-09-16 10:16:47,861 INFO L78 Accepts]: Start accepts. Automaton has 29451 states and 78161 transitions. Word has length 252 [2022-09-16 10:16:47,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:16:47,861 INFO L495 AbstractCegarLoop]: Abstraction has 29451 states and 78161 transitions. [2022-09-16 10:16:47,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 27.941176470588236) internal successors, (475), 18 states have internal predecessors, (475), 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 10:16:47,862 INFO L276 IsEmpty]: Start isEmpty. Operand 29451 states and 78161 transitions. [2022-09-16 10:16:47,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2022-09-16 10:16:47,913 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:16:47,914 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:16:47,937 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-09-16 10:16:48,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-09-16 10:16:48,138 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:16:48,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:16:48,138 INFO L85 PathProgramCache]: Analyzing trace with hash 367485190, now seen corresponding path program 1 times [2022-09-16 10:16:48,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:16:48,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521986011] [2022-09-16 10:16:48,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:16:48,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:16:48,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:16:48,352 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-09-16 10:16:48,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:16:48,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521986011] [2022-09-16 10:16:48,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521986011] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:16:48,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321655718] [2022-09-16 10:16:48,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:16:48,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:16:48,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:16:48,356 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:16:48,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-09-16 10:16:48,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:16:48,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 15 conjunts are in the unsatisfiable core [2022-09-16 10:16:48,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:16:48,899 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-09-16 10:16:48,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:16:49,394 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-09-16 10:16:49,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321655718] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:16:49,395 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:16:49,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2022-09-16 10:16:49,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709022501] [2022-09-16 10:16:49,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:16:49,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 10:16:49,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:16:49,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 10:16:49,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:16:49,398 INFO L87 Difference]: Start difference. First operand 29451 states and 78161 transitions. Second operand has 22 states, 21 states have (on average 28.047619047619047) internal successors, (589), 22 states have internal predecessors, (589), 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 10:16:50,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:16:50,104 INFO L93 Difference]: Finished difference Result 68117 states and 180822 transitions. [2022-09-16 10:16:50,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-09-16 10:16:50,105 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 28.047619047619047) internal successors, (589), 22 states have internal predecessors, (589), 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 337 [2022-09-16 10:16:50,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:16:50,272 INFO L225 Difference]: With dead ends: 68117 [2022-09-16 10:16:50,273 INFO L226 Difference]: Without dead ends: 68117 [2022-09-16 10:16:50,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 711 GetRequests, 666 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 521 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=484, Invalid=1586, Unknown=0, NotChecked=0, Total=2070 [2022-09-16 10:16:50,274 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 1895 mSDsluCounter, 1631 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1895 SdHoareTripleChecker+Valid, 1775 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:16:50,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1895 Valid, 1775 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:16:50,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68117 states. [2022-09-16 10:16:51,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68117 to 40181. [2022-09-16 10:16:51,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40181 states, 40179 states have (on average 2.6679110978371785) internal successors, (107194), 40180 states have internal predecessors, (107194), 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 10:16:51,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40181 states to 40181 states and 107194 transitions. [2022-09-16 10:16:51,387 INFO L78 Accepts]: Start accepts. Automaton has 40181 states and 107194 transitions. Word has length 337 [2022-09-16 10:16:51,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:16:51,387 INFO L495 AbstractCegarLoop]: Abstraction has 40181 states and 107194 transitions. [2022-09-16 10:16:51,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 28.047619047619047) internal successors, (589), 22 states have internal predecessors, (589), 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 10:16:51,388 INFO L276 IsEmpty]: Start isEmpty. Operand 40181 states and 107194 transitions. [2022-09-16 10:16:51,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2022-09-16 10:16:51,786 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:16:51,786 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:16:51,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-09-16 10:16:51,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:16:51,987 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2022-09-16 10:16:51,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:16:51,988 INFO L85 PathProgramCache]: Analyzing trace with hash 14204777, now seen corresponding path program 2 times [2022-09-16 10:16:51,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:16:51,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547647239] [2022-09-16 10:16:51,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:16:51,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:16:52,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:16:52,232 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:16:52,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:16:52,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547647239] [2022-09-16 10:16:52,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547647239] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:16:52,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106910584] [2022-09-16 10:16:52,233 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:16:52,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:16:52,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:16:52,234 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:16:52,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-09-16 10:16:52,409 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-16 10:16:52,409 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:16:52,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 12 conjunts are in the unsatisfiable core [2022-09-16 10:16:52,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:16:52,760 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 841 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-09-16 10:16:52,760 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:16:52,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106910584] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:16:52,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:16:52,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [15] total 27 [2022-09-16 10:16:52,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684575772] [2022-09-16 10:16:52,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:16:52,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-09-16 10:16:52,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:16:52,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-09-16 10:16:52,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=584, Unknown=0, NotChecked=0, Total=702 [2022-09-16 10:16:52,762 INFO L87 Difference]: Start difference. First operand 40181 states and 107194 transitions. Second operand has 13 states, 13 states have (on average 24.53846153846154) internal successors, (319), 13 states have internal predecessors, (319), 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 10:16:53,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:16:53,473 INFO L93 Difference]: Finished difference Result 77323 states and 205647 transitions. [2022-09-16 10:16:53,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 10:16:53,473 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 24.53846153846154) internal successors, (319), 13 states have internal predecessors, (319), 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 347 [2022-09-16 10:16:53,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:16:53,474 INFO L225 Difference]: With dead ends: 77323 [2022-09-16 10:16:53,474 INFO L226 Difference]: Without dead ends: 0 [2022-09-16 10:16:53,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=248, Invalid=1084, Unknown=0, NotChecked=0, Total=1332 [2022-09-16 10:16:53,475 INFO L413 NwaCegarLoop]: 866 mSDtfsCounter, 905 mSDsluCounter, 2963 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 3789 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:16:53,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [905 Valid, 3789 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:16:53,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-09-16 10:16:53,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-09-16 10:16:53,475 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 10:16:53,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-09-16 10:16:53,475 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 347 [2022-09-16 10:16:53,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:16:53,476 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-16 10:16:53,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 24.53846153846154) internal successors, (319), 13 states have internal predecessors, (319), 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 10:16:53,476 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-09-16 10:16:53,476 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-09-16 10:16:53,478 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2022-09-16 10:16:53,478 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 18 remaining) [2022-09-16 10:16:53,478 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2022-09-16 10:16:53,478 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2022-09-16 10:16:53,478 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2022-09-16 10:16:53,478 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2022-09-16 10:16:53,478 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2022-09-16 10:16:53,478 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2022-09-16 10:16:53,478 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2022-09-16 10:16:53,479 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2022-09-16 10:16:53,479 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2022-09-16 10:16:53,479 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2022-09-16 10:16:53,479 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2022-09-16 10:16:53,479 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2022-09-16 10:16:53,479 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2022-09-16 10:16:53,479 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2022-09-16 10:16:53,479 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2022-09-16 10:16:53,479 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2022-09-16 10:16:53,498 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-09-16 10:16:53,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-09-16 10:16:53,690 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:16:53,694 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 10:16:53,694 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 10:16:53,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 10:16:53 BasicIcfg [2022-09-16 10:16:53,697 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 10:16:53,697 INFO L158 Benchmark]: Toolchain (without parser) took 28027.08ms. Allocated memory was 195.0MB in the beginning and 6.0GB in the end (delta: 5.8GB). Free memory was 162.2MB in the beginning and 4.9GB in the end (delta: -4.8GB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. [2022-09-16 10:16:53,697 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 195.0MB. Free memory is still 149.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 10:16:53,697 INFO L158 Benchmark]: CACSL2BoogieTranslator took 604.36ms. Allocated memory was 195.0MB in the beginning and 287.3MB in the end (delta: 92.3MB). Free memory was 162.2MB in the beginning and 235.2MB in the end (delta: -73.0MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-09-16 10:16:53,698 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.75ms. Allocated memory is still 287.3MB. Free memory was 235.2MB in the beginning and 232.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 10:16:53,698 INFO L158 Benchmark]: Boogie Preprocessor took 48.32ms. Allocated memory is still 287.3MB. Free memory was 232.6MB in the beginning and 231.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 10:16:53,698 INFO L158 Benchmark]: RCFGBuilder took 452.54ms. Allocated memory is still 287.3MB. Free memory was 231.0MB in the beginning and 214.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-09-16 10:16:53,698 INFO L158 Benchmark]: TraceAbstraction took 26842.31ms. Allocated memory was 287.3MB in the beginning and 6.0GB in the end (delta: 5.7GB). Free memory was 213.2MB in the beginning and 4.9GB in the end (delta: -4.7GB). Peak memory consumption was 998.8MB. Max. memory is 8.0GB. [2022-09-16 10:16:53,700 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 195.0MB. Free memory is still 149.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 604.36ms. Allocated memory was 195.0MB in the beginning and 287.3MB in the end (delta: 92.3MB). Free memory was 162.2MB in the beginning and 235.2MB in the end (delta: -73.0MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 73.75ms. Allocated memory is still 287.3MB. Free memory was 235.2MB in the beginning and 232.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 48.32ms. Allocated memory is still 287.3MB. Free memory was 232.6MB in the beginning and 231.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 452.54ms. Allocated memory is still 287.3MB. Free memory was 231.0MB in the beginning and 214.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 26842.31ms. Allocated memory was 287.3MB in the beginning and 6.0GB in the end (delta: 5.7GB). Free memory was 213.2MB in the beginning and 4.9GB in the end (delta: -4.7GB). Peak memory consumption was 998.8MB. 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: 992]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 992]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 946]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 946]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1006]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1006]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 950]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 950]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 304 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 26.6s, OverallIterations: 18, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.7s, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8873 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8873 mSDsluCounter, 19256 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14564 mSDsCounter, 204 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1654 IncrementalHoareTripleChecker+Invalid, 1858 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 204 mSolverCounterUnsat, 4927 mSDtfsCounter, 1654 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2573 GetRequests, 2346 SyntacticMatches, 1 SemanticMatches, 226 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1317 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40181occurred in iteration=17, InterpolantAutomatonStates: 199, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 10.2s AutomataMinimizationTime, 18 MinimizatonAttempts, 82973 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 3963 NumberOfCodeBlocks, 3963 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 4790 ConstructedInterpolants, 0 QuantifiedInterpolants, 12440 SizeOfPredicates, 49 NumberOfNonLiveVariables, 3171 ConjunctsInSsa, 65 ConjunctsInUnsatCore, 30 InterpolantComputations, 14 PerfectInterpolantSequences, 1366/4174 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 10:16:53,734 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...