/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/mix029_power.opt_pso.opt_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:27:25,201 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2022-09-16 10:27:25,242 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:27:25,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:27:25,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:27:25,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:27:25,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:27:25,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:27:25,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:27:25,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:27:25,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:27:25,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:27:25,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:27:25,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:27:25,256 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 10:27:25,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:27:25,264 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:27:25,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:27:25,267 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 10:27:25,289 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:27:25,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:27:25,290 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:27:25,290 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:27:25,291 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:27:25,291 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:27:25,294 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:27:25,294 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:27:25,294 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:27:25,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:27:25,295 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:27:25,296 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:27:25,296 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:27:25,296 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:27:25,296 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:27:25,296 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:27:25,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:27:25,296 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:27:25,296 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:27:25,296 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:27:25,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:27:25,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:27:25,297 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:27:25,297 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:27:25,297 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:27:25,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:27:25,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:27:25,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:27:25,298 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:27:25,298 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:27:25,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:27:25,298 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:27:25,298 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:27:25,299 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:27:25,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:27:25,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:27:25,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:27:25,569 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:27:25,570 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:27:25,571 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i [2022-09-16 10:27:25,630 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0817f1ca9/ff302469a7ea40a6a3d8edbd7c1292c0/FLAG6921834bf [2022-09-16 10:27:26,083 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:27:26,084 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i [2022-09-16 10:27:26,104 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0817f1ca9/ff302469a7ea40a6a3d8edbd7c1292c0/FLAG6921834bf [2022-09-16 10:27:26,438 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0817f1ca9/ff302469a7ea40a6a3d8edbd7c1292c0 [2022-09-16 10:27:26,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:27:26,443 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:27:26,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:27:26,448 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:27:26,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:27:26,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:27:26" (1/1) ... [2022-09-16 10:27:26,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cb87749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:26, skipping insertion in model container [2022-09-16 10:27:26,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:27:26" (1/1) ... [2022-09-16 10:27:26,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:27:26,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:27:26,733 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/mix029_power.opt_pso.opt_rmo.opt.i[966,979] [2022-09-16 10:27:26,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:27:26,964 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:27:26,975 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/mix029_power.opt_pso.opt_rmo.opt.i[966,979] [2022-09-16 10:27:27,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:27:27,052 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:27:27,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:27 WrapperNode [2022-09-16 10:27:27,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:27:27,055 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:27:27,055 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:27:27,055 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:27:27,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:27" (1/1) ... [2022-09-16 10:27:27,090 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:27" (1/1) ... [2022-09-16 10:27:27,123 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 293 [2022-09-16 10:27:27,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:27:27,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:27:27,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:27:27,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:27:27,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:27" (1/1) ... [2022-09-16 10:27:27,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:27" (1/1) ... [2022-09-16 10:27:27,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:27" (1/1) ... [2022-09-16 10:27:27,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:27" (1/1) ... [2022-09-16 10:27:27,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:27" (1/1) ... [2022-09-16 10:27:27,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:27" (1/1) ... [2022-09-16 10:27:27,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:27" (1/1) ... [2022-09-16 10:27:27,159 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:27:27,160 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:27:27,160 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:27:27,160 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:27:27,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:27" (1/1) ... [2022-09-16 10:27:27,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:27:27,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:27:27,206 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 10:27:27,209 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 10:27:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:27:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 10:27:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:27:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:27:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:27:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 10:27:27,235 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 10:27:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 10:27:27,236 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 10:27:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-16 10:27:27,236 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-16 10:27:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-09-16 10:27:27,236 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-09-16 10:27:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:27:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 10:27:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:27:27,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:27:27,238 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 10:27:27,436 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:27:27,437 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:27:27,945 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:27:28,329 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:27:28,329 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 10:27:28,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:27:28 BoogieIcfgContainer [2022-09-16 10:27:28,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:27:28,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:27:28,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:27:28,339 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:27:28,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:27:26" (1/3) ... [2022-09-16 10:27:28,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2999b3fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:27:28, skipping insertion in model container [2022-09-16 10:27:28,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:27:27" (2/3) ... [2022-09-16 10:27:28,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2999b3fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:27:28, skipping insertion in model container [2022-09-16 10:27:28,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:27:28" (3/3) ... [2022-09-16 10:27:28,342 INFO L112 eAbstractionObserver]: Analyzing ICFG mix029_power.opt_pso.opt_rmo.opt.i [2022-09-16 10:27:28,350 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:27:28,357 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:27:28,358 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 10:27:28,358 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:27:28,426 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 10:27:28,467 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 153 places, 142 transitions, 304 flow [2022-09-16 10:27:38,418 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 331067 states, 330987 states have (on average 4.603736702649953) internal successors, (1523777), 331066 states have internal predecessors, (1523777), 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 10:27:38,446 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:27:38,451 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;@1e6d8afc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:27:38,452 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-09-16 10:27:39,059 INFO L276 IsEmpty]: Start isEmpty. Operand has 331067 states, 330987 states have (on average 4.603736702649953) internal successors, (1523777), 331066 states have internal predecessors, (1523777), 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 10:27:39,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-09-16 10:27:39,066 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:27:39,066 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] [2022-09-16 10:27:39,067 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 10:27:39,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:27:39,072 INFO L85 PathProgramCache]: Analyzing trace with hash 2024129619, now seen corresponding path program 1 times [2022-09-16 10:27:39,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:27:39,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197333656] [2022-09-16 10:27:39,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:27:39,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:27:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:27:39,367 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 10:27:39,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:27:39,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197333656] [2022-09-16 10:27:39,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197333656] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:27:39,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:27:39,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:27:39,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782738295] [2022-09-16 10:27:39,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:27:39,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:27:39,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:27:39,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:27:39,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:27:40,203 INFO L87 Difference]: Start difference. First operand has 331067 states, 330987 states have (on average 4.603736702649953) internal successors, (1523777), 331066 states have internal predecessors, (1523777), 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 25.5) internal successors, (51), 3 states have internal predecessors, (51), 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 10:27:46,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:27:46,527 INFO L93 Difference]: Finished difference Result 263658 states and 1174534 transitions. [2022-09-16 10:27:46,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:27:46,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 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 51 [2022-09-16 10:27:46,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:27:50,857 INFO L225 Difference]: With dead ends: 263658 [2022-09-16 10:27:50,857 INFO L226 Difference]: Without dead ends: 263658 [2022-09-16 10:27:50,859 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 10:27:50,862 INFO L413 NwaCegarLoop]: 116 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, 190 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 10:27:50,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 190 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:27:52,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263658 states. [2022-09-16 10:28:05,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263658 to 263658. [2022-09-16 10:28:06,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263658 states, 263466 states have (on average 4.458009762170451) internal successors, (1174534), 263657 states have internal predecessors, (1174534), 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 10:28:09,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263658 states to 263658 states and 1174534 transitions. [2022-09-16 10:28:09,028 INFO L78 Accepts]: Start accepts. Automaton has 263658 states and 1174534 transitions. Word has length 51 [2022-09-16 10:28:09,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:28:09,029 INFO L495 AbstractCegarLoop]: Abstraction has 263658 states and 1174534 transitions. [2022-09-16 10:28:09,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 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 10:28:09,029 INFO L276 IsEmpty]: Start isEmpty. Operand 263658 states and 1174534 transitions. [2022-09-16 10:28:09,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-09-16 10:28:09,047 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:28:09,047 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] [2022-09-16 10:28:09,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:28:09,048 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 10:28:09,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:28:09,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1883015579, now seen corresponding path program 1 times [2022-09-16 10:28:09,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:28:09,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026602800] [2022-09-16 10:28:09,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:28:09,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:28:09,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:28:09,557 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 10:28:09,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:28:09,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026602800] [2022-09-16 10:28:09,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026602800] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:28:09,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:28:09,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:28:09,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858222802] [2022-09-16 10:28:09,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:28:09,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:28:09,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:28:09,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:28:09,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:28:09,561 INFO L87 Difference]: Start difference. First operand 263658 states and 1174534 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 10:28:13,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:28:13,907 INFO L93 Difference]: Finished difference Result 240372 states and 1029554 transitions. [2022-09-16 10:28:13,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:28:13,908 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 10:28:13,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:28:18,303 INFO L225 Difference]: With dead ends: 240372 [2022-09-16 10:28:18,304 INFO L226 Difference]: Without dead ends: 240372 [2022-09-16 10:28:18,304 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 10:28:18,308 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 175 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:28:18,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 258 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:28:19,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240372 states. [2022-09-16 10:28:32,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240372 to 231732. [2022-09-16 10:28:33,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231732 states, 231624 states have (on average 4.349117535315857) internal successors, (1007360), 231731 states have internal predecessors, (1007360), 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 10:28:36,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231732 states to 231732 states and 1007360 transitions. [2022-09-16 10:28:36,849 INFO L78 Accepts]: Start accepts. Automaton has 231732 states and 1007360 transitions. Word has length 63 [2022-09-16 10:28:36,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:28:36,852 INFO L495 AbstractCegarLoop]: Abstraction has 231732 states and 1007360 transitions. [2022-09-16 10:28:36,852 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 10:28:36,853 INFO L276 IsEmpty]: Start isEmpty. Operand 231732 states and 1007360 transitions. [2022-09-16 10:28:36,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-09-16 10:28:36,859 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:28:36,867 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] [2022-09-16 10:28:36,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 10:28:36,869 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 10:28:36,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:28:36,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1883015578, now seen corresponding path program 1 times [2022-09-16 10:28:36,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:28:36,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257734885] [2022-09-16 10:28:36,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:28:36,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:28:36,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:28:37,070 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 10:28:37,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:28:37,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257734885] [2022-09-16 10:28:37,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257734885] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:28:37,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:28:37,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:28:37,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101939353] [2022-09-16 10:28:37,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:28:37,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:28:37,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:28:37,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:28:37,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:28:37,075 INFO L87 Difference]: Start difference. First operand 231732 states and 1007360 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 10:28:40,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:28:40,521 INFO L93 Difference]: Finished difference Result 152709 states and 671826 transitions. [2022-09-16 10:28:40,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:28:40,535 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 10:28:40,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:28:43,183 INFO L225 Difference]: With dead ends: 152709 [2022-09-16 10:28:43,184 INFO L226 Difference]: Without dead ends: 152709 [2022-09-16 10:28:43,185 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 10:28:43,194 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 134 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 347 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 10:28:43,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 347 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:28:44,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152709 states. [2022-09-16 10:28:51,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152709 to 152709. [2022-09-16 10:28:52,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152709 states, 152679 states have (on average 4.400251508065942) internal successors, (671826), 152708 states have internal predecessors, (671826), 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 10:28:54,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152709 states to 152709 states and 671826 transitions. [2022-09-16 10:28:54,026 INFO L78 Accepts]: Start accepts. Automaton has 152709 states and 671826 transitions. Word has length 63 [2022-09-16 10:28:54,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:28:54,027 INFO L495 AbstractCegarLoop]: Abstraction has 152709 states and 671826 transitions. [2022-09-16 10:28:54,027 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 10:28:54,027 INFO L276 IsEmpty]: Start isEmpty. Operand 152709 states and 671826 transitions. [2022-09-16 10:28:54,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-09-16 10:28:54,057 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:28:54,057 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] [2022-09-16 10:28:54,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 10:28:54,065 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:28:54,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:28:54,066 INFO L85 PathProgramCache]: Analyzing trace with hash -995700207, now seen corresponding path program 1 times [2022-09-16 10:28:54,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:28:54,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541822092] [2022-09-16 10:28:54,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:28:54,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:28:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:28:54,312 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 10:28:54,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:28:54,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541822092] [2022-09-16 10:28:54,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541822092] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:28:54,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:28:54,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 10:28:54,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80601317] [2022-09-16 10:28:54,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:28:54,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:28:54,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:28:54,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:28:54,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:28:54,315 INFO L87 Difference]: Start difference. First operand 152709 states and 671826 transitions. Second operand has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)