/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-wmm/mix030_power.opt_pso.opt_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:27:53,042 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2022-09-16 10:27:53,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:27:53,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:27:53,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:27:53,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:27:53,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:27:53,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:27:53,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:27:53,084 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:27:53,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:27:53,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:27:53,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:27:53,088 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:27:53,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 10:27:53,100 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:27:53,101 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:27:53,102 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:27:53,102 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 10:27:53,130 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:27:53,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:27:53,131 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:27:53,131 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:27:53,132 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:27:53,132 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:27:53,133 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:27:53,133 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:27:53,133 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:27:53,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:27:53,134 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:27:53,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:27:53,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:27:53,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:27:53,134 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:27:53,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:27:53,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:27:53,135 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:27:53,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:27:53,135 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:27:53,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:27:53,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:27:53,135 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:27:53,136 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:27:53,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:27:53,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:27:53,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:27:53,137 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:27:53,137 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:27:53,137 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:27:53,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:27:53,137 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:27:53,137 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:27:53,138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:27:53,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:27:53,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:27:53,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:27:53,393 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:27:53,395 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:27:53,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix030_power.opt_pso.opt_rmo.opt.i [2022-09-16 10:27:53,447 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/549629d13/8dca04306375413d932ed37c4adf2d9a/FLAGb8508b1cf [2022-09-16 10:27:53,934 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:27:53,938 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix030_power.opt_pso.opt_rmo.opt.i [2022-09-16 10:27:53,951 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/549629d13/8dca04306375413d932ed37c4adf2d9a/FLAGb8508b1cf [2022-09-16 10:27:54,431 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/549629d13/8dca04306375413d932ed37c4adf2d9a [2022-09-16 10:27:54,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:27:54,436 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:27:54,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:27:54,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:27:54,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:27:54,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:27:54" (1/1) ... [2022-09-16 10:27:54,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7952fb05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:54, skipping insertion in model container [2022-09-16 10:27:54,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:27:54" (1/1) ... [2022-09-16 10:27:54,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:27:54,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:27:54,655 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-wmm/mix030_power.opt_pso.opt_rmo.opt.i[966,979] [2022-09-16 10:27:54,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:27:54,874 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:27:54,884 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-wmm/mix030_power.opt_pso.opt_rmo.opt.i[966,979] [2022-09-16 10:27:54,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:27:54,977 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:27:54,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:54 WrapperNode [2022-09-16 10:27:54,977 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:27:54,978 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:27:54,978 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:27:54,978 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:27:54,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:54" (1/1) ... [2022-09-16 10:27:55,019 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:54" (1/1) ... [2022-09-16 10:27:55,074 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 292 [2022-09-16 10:27:55,075 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:27:55,076 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:27:55,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:27:55,076 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:27:55,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:54" (1/1) ... [2022-09-16 10:27:55,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:54" (1/1) ... [2022-09-16 10:27:55,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:54" (1/1) ... [2022-09-16 10:27:55,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:54" (1/1) ... [2022-09-16 10:27:55,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:54" (1/1) ... [2022-09-16 10:27:55,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:54" (1/1) ... [2022-09-16 10:27:55,120 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:54" (1/1) ... [2022-09-16 10:27:55,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:27:55,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:27:55,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:27:55,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:27:55,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:54" (1/1) ... [2022-09-16 10:27:55,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:27:55,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:27:55,172 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 10:27:55,182 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 10:27:55,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:27:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 10:27:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:27:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:27:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:27:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 10:27:55,208 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 10:27:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 10:27:55,208 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 10:27:55,209 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-16 10:27:55,209 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-16 10:27:55,209 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-09-16 10:27:55,209 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-09-16 10:27:55,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:27:55,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 10:27:55,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:27:55,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:27:55,211 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 10:27:55,394 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:27:55,395 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:27:55,964 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:27:56,349 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:27:56,349 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 10:27:56,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:27:56 BoogieIcfgContainer [2022-09-16 10:27:56,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:27:56,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:27:56,354 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:27:56,357 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:27:56,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:27:54" (1/3) ... [2022-09-16 10:27:56,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f77f02e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:27:56, skipping insertion in model container [2022-09-16 10:27:56,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:54" (2/3) ... [2022-09-16 10:27:56,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f77f02e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:27:56, skipping insertion in model container [2022-09-16 10:27:56,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:27:56" (3/3) ... [2022-09-16 10:27:56,360 INFO L112 eAbstractionObserver]: Analyzing ICFG mix030_power.opt_pso.opt_rmo.opt.i [2022-09-16 10:27:56,369 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:27:56,376 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:27:56,377 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 10:27:56,377 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:27:56,437 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 10:27:56,478 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 152 places, 141 transitions, 302 flow [2022-09-16 10:28:06,076 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 331066 states, 330986 states have (on average 4.60374759053253) internal successors, (1523776), 331065 states have internal predecessors, (1523776), 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 10:28:06,102 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:28:06,111 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;@6bb447c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:28:06,111 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-09-16 10:28:06,723 INFO L276 IsEmpty]: Start isEmpty. Operand has 331066 states, 330986 states have (on average 4.60374759053253) internal successors, (1523776), 331065 states have internal predecessors, (1523776), 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 10:28:06,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-09-16 10:28:06,730 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:28:06,731 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] [2022-09-16 10:28:06,732 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:28:06,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:28:06,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1364634607, now seen corresponding path program 1 times [2022-09-16 10:28:06,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:28:06,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799460873] [2022-09-16 10:28:06,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:28:06,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:28:06,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:28:07,008 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 10:28:07,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:28:07,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799460873] [2022-09-16 10:28:07,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799460873] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:28:07,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:28:07,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:28:07,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185733210] [2022-09-16 10:28:07,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:28:07,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:28:07,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:28:07,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:28:07,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:28:07,712 INFO L87 Difference]: Start difference. First operand has 331066 states, 330986 states have (on average 4.60374759053253) internal successors, (1523776), 331065 states have internal predecessors, (1523776), 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 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 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 10:28:13,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:28:13,415 INFO L93 Difference]: Finished difference Result 263657 states and 1174533 transitions. [2022-09-16 10:28:13,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:28:13,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 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 50 [2022-09-16 10:28:13,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:28:17,456 INFO L225 Difference]: With dead ends: 263657 [2022-09-16 10:28:17,457 INFO L226 Difference]: Without dead ends: 263657 [2022-09-16 10:28:17,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:28:17,471 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 65 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:28:17,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 189 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:28:18,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263657 states. [2022-09-16 10:28:30,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263657 to 263657. [2022-09-16 10:28:31,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263657 states, 263465 states have (on average 4.458022887290532) internal successors, (1174533), 263656 states have internal predecessors, (1174533), 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 10:28:34,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263657 states to 263657 states and 1174533 transitions. [2022-09-16 10:28:34,952 INFO L78 Accepts]: Start accepts. Automaton has 263657 states and 1174533 transitions. Word has length 50 [2022-09-16 10:28:34,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:28:34,953 INFO L495 AbstractCegarLoop]: Abstraction has 263657 states and 1174533 transitions. [2022-09-16 10:28:34,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 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 10:28:34,953 INFO L276 IsEmpty]: Start isEmpty. Operand 263657 states and 1174533 transitions. [2022-09-16 10:28:34,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-09-16 10:28:34,956 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:28:34,957 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] [2022-09-16 10:28:34,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:28:34,957 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:28:34,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:28:34,958 INFO L85 PathProgramCache]: Analyzing trace with hash 269309965, now seen corresponding path program 1 times [2022-09-16 10:28:34,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:28:34,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254753757] [2022-09-16 10:28:34,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:28:34,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:28:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:28:35,055 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 10:28:35,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:28:35,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254753757] [2022-09-16 10:28:35,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254753757] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:28:35,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:28:35,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:28:35,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909901895] [2022-09-16 10:28:35,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:28:35,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:28:35,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:28:35,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:28:35,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:28:35,058 INFO L87 Difference]: Start difference. First operand 263657 states and 1174533 transitions. Second operand has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 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 10:28:39,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:28:39,846 INFO L93 Difference]: Finished difference Result 240371 states and 1029553 transitions. [2022-09-16 10:28:39,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:28:39,847 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2022-09-16 10:28:39,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:28:44,244 INFO L225 Difference]: With dead ends: 240371 [2022-09-16 10:28:44,245 INFO L226 Difference]: Without dead ends: 240371 [2022-09-16 10:28:44,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:28:44,252 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 228 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:28:44,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 249 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:28:45,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240371 states. [2022-09-16 10:28:58,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240371 to 231731. [2022-09-16 10:28:59,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231731 states, 231623 states have (on average 4.349131994663742) internal successors, (1007359), 231730 states have internal predecessors, (1007359), 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 10:29:02,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231731 states to 231731 states and 1007359 transitions. [2022-09-16 10:29:02,269 INFO L78 Accepts]: Start accepts. Automaton has 231731 states and 1007359 transitions. Word has length 62 [2022-09-16 10:29:02,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:29:02,271 INFO L495 AbstractCegarLoop]: Abstraction has 231731 states and 1007359 transitions. [2022-09-16 10:29:02,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 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 10:29:02,279 INFO L276 IsEmpty]: Start isEmpty. Operand 231731 states and 1007359 transitions. [2022-09-16 10:29:02,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-09-16 10:29:02,282 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:29:02,282 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] [2022-09-16 10:29:02,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 10:29:02,283 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:29:02,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:29:02,284 INFO L85 PathProgramCache]: Analyzing trace with hash 269309966, now seen corresponding path program 1 times [2022-09-16 10:29:02,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:29:02,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281515443] [2022-09-16 10:29:02,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:29:02,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:29:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:29:02,464 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 10:29:02,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:29:02,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281515443] [2022-09-16 10:29:02,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281515443] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:29:02,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:29:02,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:29:02,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965634820] [2022-09-16 10:29:02,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:29:02,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:29:02,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:29:02,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:29:02,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:29:02,470 INFO L87 Difference]: Start difference. First operand 231731 states and 1007359 transitions. Second operand has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 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 10:29:05,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:29:05,914 INFO L93 Difference]: Finished difference Result 152708 states and 671825 transitions. [2022-09-16 10:29:05,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:29:05,928 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2022-09-16 10:29:05,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:29:08,731 INFO L225 Difference]: With dead ends: 152708 [2022-09-16 10:29:08,732 INFO L226 Difference]: Without dead ends: 152708 [2022-09-16 10:29:08,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:29:08,754 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 134 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:29:08,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 345 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:29:09,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152708 states. [2022-09-16 10:29:16,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152708 to 152708. [2022-09-16 10:29:17,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152708 states, 152678 states have (on average 4.400273778802447) internal successors, (671825), 152707 states have internal predecessors, (671825), 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 10:29:19,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152708 states to 152708 states and 671825 transitions. [2022-09-16 10:29:19,120 INFO L78 Accepts]: Start accepts. Automaton has 152708 states and 671825 transitions. Word has length 62 [2022-09-16 10:29:19,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:29:19,122 INFO L495 AbstractCegarLoop]: Abstraction has 152708 states and 671825 transitions. [2022-09-16 10:29:19,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 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 10:29:19,122 INFO L276 IsEmpty]: Start isEmpty. Operand 152708 states and 671825 transitions. [2022-09-16 10:29:19,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-09-16 10:29:19,512 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:29:19,512 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] [2022-09-16 10:29:19,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 10:29:19,513 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:29:19,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:29:19,514 INFO L85 PathProgramCache]: Analyzing trace with hash -291355695, now seen corresponding path program 1 times [2022-09-16 10:29:19,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:29:19,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759187242] [2022-09-16 10:29:19,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:29:19,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:29:19,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:29:19,802 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 10:29:19,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:29:19,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759187242] [2022-09-16 10:29:19,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759187242] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:29:19,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:29:19,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 10:29:19,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721848717] [2022-09-16 10:29:19,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:29:19,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:29:19,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:29:19,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:29:19,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:29:19,806 INFO L87 Difference]: Start difference. First operand 152708 states and 671825 transitions. Second operand has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 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)