/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/mix008_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:21:18,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:21:18,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:21:18,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:21:18,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:21:18,310 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:21:18,313 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:21:18,315 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:21:18,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:21:18,320 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:21:18,321 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:21:18,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:21:18,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:21:18,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:21:18,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:21:18,327 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:21:18,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:21:18,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:21:18,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:21:18,335 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:21:18,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:21:18,337 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:21:18,339 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:21:18,340 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:21:18,344 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 10:21:18,352 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:21:18,352 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:21:18,353 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:21:18,353 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 10:21:18,384 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:21:18,385 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:21:18,385 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:21:18,385 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:21:18,386 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:21:18,386 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:21:18,386 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:21:18,387 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:21:18,387 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:21:18,387 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:21:18,388 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:21:18,388 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:21:18,388 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:21:18,388 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:21:18,388 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:21:18,388 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:21:18,388 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:21:18,388 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:21:18,388 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:21:18,389 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:21:18,389 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:21:18,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:21:18,389 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:21:18,390 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:21:18,390 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:21:18,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:21:18,390 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:21:18,390 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:21:18,391 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:21:18,391 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:21:18,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:21:18,391 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:21:18,391 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:21:18,391 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:21:18,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:21:18,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:21:18,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:21:18,623 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:21:18,624 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:21:18,625 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix008_tso.oepc.i [2022-09-16 10:21:18,681 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e58f8def/b1e165ad3cdb4aa0b3dec90c96fedb82/FLAG18a652f67 [2022-09-16 10:21:19,201 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:21:19,202 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix008_tso.oepc.i [2022-09-16 10:21:19,221 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e58f8def/b1e165ad3cdb4aa0b3dec90c96fedb82/FLAG18a652f67 [2022-09-16 10:21:19,694 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e58f8def/b1e165ad3cdb4aa0b3dec90c96fedb82 [2022-09-16 10:21:19,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:21:19,698 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:21:19,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:21:19,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:21:19,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:21:19,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:21:19" (1/1) ... [2022-09-16 10:21:19,703 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b77e4b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:21:19, skipping insertion in model container [2022-09-16 10:21:19,704 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:21:19" (1/1) ... [2022-09-16 10:21:19,709 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:21:19,764 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:21:19,944 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/mix008_tso.oepc.i[949,962] [2022-09-16 10:21:20,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:21:20,184 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:21:20,193 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/mix008_tso.oepc.i[949,962] [2022-09-16 10:21:20,267 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:21:20,303 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:21:20,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:21:20 WrapperNode [2022-09-16 10:21:20,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:21:20,305 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:21:20,305 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:21:20,305 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:21:20,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:21:20" (1/1) ... [2022-09-16 10:21:20,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:21:20" (1/1) ... [2022-09-16 10:21:20,402 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 734 [2022-09-16 10:21:20,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:21:20,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:21:20,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:21:20,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:21:20,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:21:20" (1/1) ... [2022-09-16 10:21:20,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:21:20" (1/1) ... [2022-09-16 10:21:20,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:21:20" (1/1) ... [2022-09-16 10:21:20,426 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:21:20" (1/1) ... [2022-09-16 10:21:20,454 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:21:20" (1/1) ... [2022-09-16 10:21:20,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:21:20" (1/1) ... [2022-09-16 10:21:20,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:21:20" (1/1) ... [2022-09-16 10:21:20,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:21:20,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:21:20,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:21:20,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:21:20,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:21:20" (1/1) ... [2022-09-16 10:21:20,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:21:20,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:21:20,516 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 10:21:20,542 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 10:21:20,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:21:20,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 10:21:20,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:21:20,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:21:20,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:21:20,561 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 10:21:20,562 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 10:21:20,563 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 10:21:20,563 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 10:21:20,564 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-16 10:21:20,564 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-16 10:21:20,564 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-09-16 10:21:20,564 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-09-16 10:21:20,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:21:20,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 10:21:20,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:21:20,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:21:20,566 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 10:21:20,775 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:21:20,776 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:21:21,756 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:21:22,506 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:21:22,506 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 10:21:22,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:21:22 BoogieIcfgContainer [2022-09-16 10:21:22,509 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:21:22,511 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:21:22,512 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:21:22,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:21:22,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:21:19" (1/3) ... [2022-09-16 10:21:22,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d7ec9c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:21:22, skipping insertion in model container [2022-09-16 10:21:22,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:21:20" (2/3) ... [2022-09-16 10:21:22,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d7ec9c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:21:22, skipping insertion in model container [2022-09-16 10:21:22,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:21:22" (3/3) ... [2022-09-16 10:21:22,517 INFO L112 eAbstractionObserver]: Analyzing ICFG mix008_tso.oepc.i [2022-09-16 10:21:22,525 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:21:22,533 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:21:22,533 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 10:21:22,533 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:21:22,635 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 10:21:22,679 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 173 places, 162 transitions, 344 flow [2022-09-16 10:21:33,021 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 364386 states, 364306 states have (on average 4.613308592227413) internal successors, (1680656), 364385 states have internal predecessors, (1680656), 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 10:21:33,041 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:21:33,054 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;@1bd9f59d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:21:33,062 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-09-16 10:21:33,720 INFO L276 IsEmpty]: Start isEmpty. Operand has 364386 states, 364306 states have (on average 4.613308592227413) internal successors, (1680656), 364385 states have internal predecessors, (1680656), 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 10:21:33,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-09-16 10:21:33,728 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:21:33,729 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] [2022-09-16 10:21:33,730 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:21:33,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:21:33,734 INFO L85 PathProgramCache]: Analyzing trace with hash 90174914, now seen corresponding path program 1 times [2022-09-16 10:21:33,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:21:33,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42407125] [2022-09-16 10:21:33,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:21:33,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:21:33,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:21:34,045 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 10:21:34,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:21:34,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42407125] [2022-09-16 10:21:34,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42407125] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:21:34,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:21:34,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:21:34,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368066624] [2022-09-16 10:21:34,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:21:34,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:21:34,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:21:34,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:21:34,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:21:34,797 INFO L87 Difference]: Start difference. First operand has 364386 states, 364306 states have (on average 4.613308592227413) internal successors, (1680656), 364385 states have internal predecessors, (1680656), 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 35.0) internal successors, (70), 3 states have internal predecessors, (70), 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 10:21:40,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:21:40,804 INFO L93 Difference]: Finished difference Result 288921 states and 1289822 transitions. [2022-09-16 10:21:40,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:21:40,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 35.0) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2022-09-16 10:21:40,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:21:44,837 INFO L225 Difference]: With dead ends: 288921 [2022-09-16 10:21:44,837 INFO L226 Difference]: Without dead ends: 288921 [2022-09-16 10:21:44,838 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 10:21:44,841 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 66 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:21:44,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 203 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:21:46,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288921 states. [2022-09-16 10:21:59,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288921 to 288921. [2022-09-16 10:22:01,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288921 states, 288729 states have (on average 4.46724090756384) internal successors, (1289822), 288920 states have internal predecessors, (1289822), 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 10:22:04,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288921 states to 288921 states and 1289822 transitions. [2022-09-16 10:22:04,564 INFO L78 Accepts]: Start accepts. Automaton has 288921 states and 1289822 transitions. Word has length 70 [2022-09-16 10:22:04,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:22:04,564 INFO L495 AbstractCegarLoop]: Abstraction has 288921 states and 1289822 transitions. [2022-09-16 10:22:04,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 35.0) internal successors, (70), 3 states have internal predecessors, (70), 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 10:22:04,565 INFO L276 IsEmpty]: Start isEmpty. Operand 288921 states and 1289822 transitions. [2022-09-16 10:22:04,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-09-16 10:22:04,569 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:22:04,569 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:22:04,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:22:04,569 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:22:04,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:22:04,570 INFO L85 PathProgramCache]: Analyzing trace with hash -2123071252, now seen corresponding path program 1 times [2022-09-16 10:22:04,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:22:04,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347833733] [2022-09-16 10:22:04,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:22:04,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:22:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:22:04,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:22:04,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:22:04,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347833733] [2022-09-16 10:22:04,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347833733] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:22:04,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:22:04,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:22:04,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116004142] [2022-09-16 10:22:04,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:22:04,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:22:04,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:22:04,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:22:04,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:22:04,771 INFO L87 Difference]: Start difference. First operand 288921 states and 1289822 transitions. Second operand has 4 states, 3 states have (on average 27.333333333333332) internal successors, (82), 4 states have internal predecessors, (82), 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 10:22:09,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:22:09,502 INFO L93 Difference]: Finished difference Result 208767 states and 929477 transitions. [2022-09-16 10:22:09,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:22:09,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 27.333333333333332) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-09-16 10:22:09,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:22:13,297 INFO L225 Difference]: With dead ends: 208767 [2022-09-16 10:22:13,298 INFO L226 Difference]: Without dead ends: 208767 [2022-09-16 10:22:13,298 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 10:22:13,303 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 136 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:22:13,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 373 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:22:14,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208767 states. [2022-09-16 10:22:23,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208767 to 208767. [2022-09-16 10:22:24,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208767 states, 208725 states have (on average 4.453117738651335) internal successors, (929477), 208766 states have internal predecessors, (929477), 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 10:22:27,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208767 states to 208767 states and 929477 transitions. [2022-09-16 10:22:27,084 INFO L78 Accepts]: Start accepts. Automaton has 208767 states and 929477 transitions. Word has length 82 [2022-09-16 10:22:27,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:22:27,086 INFO L495 AbstractCegarLoop]: Abstraction has 208767 states and 929477 transitions. [2022-09-16 10:22:27,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 27.333333333333332) internal successors, (82), 4 states have internal predecessors, (82), 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 10:22:27,086 INFO L276 IsEmpty]: Start isEmpty. Operand 208767 states and 929477 transitions. [2022-09-16 10:22:27,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-09-16 10:22:27,090 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:22:27,090 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:22:27,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 10:22:27,090 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 10:22:27,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:22:27,114 INFO L85 PathProgramCache]: Analyzing trace with hash -2123071253, now seen corresponding path program 1 times [2022-09-16 10:22:27,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:22:27,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780220965] [2022-09-16 10:22:27,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:22:27,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:22:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:22:27,268 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 10:22:27,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:22:27,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780220965] [2022-09-16 10:22:27,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780220965] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:22:27,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:22:27,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:22:27,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906083053] [2022-09-16 10:22:27,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:22:27,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:22:27,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:22:27,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:22:27,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:22:27,273 INFO L87 Difference]: Start difference. First operand 208767 states and 929477 transitions. Second operand has 4 states, 3 states have (on average 27.333333333333332) internal successors, (82), 4 states have internal predecessors, (82), 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 10:22:30,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:22:30,760 INFO L93 Difference]: Finished difference Result 170112 states and 751049 transitions. [2022-09-16 10:22:30,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:22:30,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 27.333333333333332) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-09-16 10:22:30,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:22:33,573 INFO L225 Difference]: With dead ends: 170112 [2022-09-16 10:22:33,573 INFO L226 Difference]: Without dead ends: 170112 [2022-09-16 10:22:33,574 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 10:22:33,575 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 202 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:22:33,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 268 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:22:34,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170112 states. [2022-09-16 10:22:42,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170112 to 170112. [2022-09-16 10:22:43,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170112 states, 170082 states have (on average 4.41580531743512) internal successors, (751049), 170111 states have internal predecessors, (751049), 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)