/usr/bin/java -Xmx16000000000 -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 -i ../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-17 23:14:49,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-17 23:14:49,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-17 23:14:49,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-17 23:14:49,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-17 23:14:49,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-17 23:14:49,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-17 23:14:49,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-17 23:14:49,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-17 23:14:49,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-17 23:14:49,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-17 23:14:49,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-17 23:14:49,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-17 23:14:49,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-17 23:14:49,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-17 23:14:49,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-17 23:14:49,387 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-17 23:14:49,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-17 23:14:49,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-17 23:14:49,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-17 23:14:49,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-17 23:14:49,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-17 23:14:49,428 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-17 23:14:49,429 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-17 23:14:49,434 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-17 23:14:49,440 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-17 23:14:49,442 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-17 23:14:49,442 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-17 23:14:49,443 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 [2022-01-17 23:14:49,463 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-17 23:14:49,463 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-17 23:14:49,464 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-17 23:14:49,464 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-17 23:14:49,464 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-17 23:14:49,464 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-17 23:14:49,465 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-17 23:14:49,465 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-17 23:14:49,465 INFO L138 SettingsManager]: * Use SBE=true [2022-01-17 23:14:49,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-17 23:14:49,465 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-17 23:14:49,465 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-17 23:14:49,465 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-17 23:14:49,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-17 23:14:49,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-17 23:14:49,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-17 23:14:49,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-17 23:14:49,466 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-17 23:14:49,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-17 23:14:49,466 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-17 23:14:49,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-17 23:14:49,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-17 23:14:49,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-17 23:14:49,466 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-17 23:14:49,466 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-17 23:14:49,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-17 23:14:49,466 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-17 23:14:49,466 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-17 23:14:49,466 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-17 23:14:49,467 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-17 23:14:49,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-17 23:14:49,467 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-17 23:14:49,467 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-17 23:14:49,467 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-17 23:14:49,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-17 23:14:49,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-17 23:14:49,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-17 23:14:49,701 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-17 23:14:49,701 INFO L275 PluginConnector]: CDTParser initialized [2022-01-17 23:14:49,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.i [2022-01-17 23:14:49,751 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a3153e9d/e7c2efc127004dd285d441dfec99caef/FLAG3c08983cf [2022-01-17 23:14:50,114 INFO L306 CDTParser]: Found 1 translation units. [2022-01-17 23:14:50,115 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.i [2022-01-17 23:14:50,123 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a3153e9d/e7c2efc127004dd285d441dfec99caef/FLAG3c08983cf [2022-01-17 23:14:50,500 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a3153e9d/e7c2efc127004dd285d441dfec99caef [2022-01-17 23:14:50,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-17 23:14:50,502 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-17 23:14:50,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-17 23:14:50,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-17 23:14:50,505 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-17 23:14:50,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.01 11:14:50" (1/1) ... [2022-01-17 23:14:50,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54e78e07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:14:50, skipping insertion in model container [2022-01-17 23:14:50,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.01 11:14:50" (1/1) ... [2022-01-17 23:14:50,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-17 23:14:50,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-17 23:14:50,675 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/safe011_tso.i[945,958] [2022-01-17 23:14:50,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-17 23:14:50,757 INFO L203 MainTranslator]: Completed pre-run [2022-01-17 23:14:50,764 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/safe011_tso.i[945,958] [2022-01-17 23:14:50,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-17 23:14:50,799 INFO L208 MainTranslator]: Completed translation [2022-01-17 23:14:50,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:14:50 WrapperNode [2022-01-17 23:14:50,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-17 23:14:50,801 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-17 23:14:50,801 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-17 23:14:50,801 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-17 23:14:50,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:14:50" (1/1) ... [2022-01-17 23:14:50,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:14:50" (1/1) ... [2022-01-17 23:14:50,831 INFO L137 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-01-17 23:14:50,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-17 23:14:50,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-17 23:14:50,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-17 23:14:50,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-17 23:14:50,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:14:50" (1/1) ... [2022-01-17 23:14:50,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:14:50" (1/1) ... [2022-01-17 23:14:50,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:14:50" (1/1) ... [2022-01-17 23:14:50,850 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:14:50" (1/1) ... [2022-01-17 23:14:50,853 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:14:50" (1/1) ... [2022-01-17 23:14:50,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:14:50" (1/1) ... [2022-01-17 23:14:50,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:14:50" (1/1) ... [2022-01-17 23:14:50,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-17 23:14:50,857 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-17 23:14:50,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-17 23:14:50,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-17 23:14:50,866 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:14:50" (1/1) ... [2022-01-17 23:14:50,871 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-17 23:14:50,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-17 23:14:50,889 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) [2022-01-17 23:14:50,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-17 23:14:50,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-17 23:14:50,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-17 23:14:50,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-17 23:14:50,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-17 23:14:50,932 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-01-17 23:14:50,932 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-01-17 23:14:50,932 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-01-17 23:14:50,932 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-01-17 23:14:50,932 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-01-17 23:14:50,933 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-01-17 23:14:50,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-17 23:14:50,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-17 23:14:50,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-17 23:14:50,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-17 23:14:50,934 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-17 23:14:50,904 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 [2022-01-17 23:14:51,002 INFO L234 CfgBuilder]: Building ICFG [2022-01-17 23:14:51,003 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-17 23:14:51,186 INFO L275 CfgBuilder]: Performing block encoding [2022-01-17 23:14:51,197 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-17 23:14:51,197 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-17 23:14:51,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.01 11:14:51 BoogieIcfgContainer [2022-01-17 23:14:51,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-17 23:14:51,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-17 23:14:51,200 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-17 23:14:51,202 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-17 23:14:51,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.01 11:14:50" (1/3) ... [2022-01-17 23:14:51,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43d2dcdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.01 11:14:51, skipping insertion in model container [2022-01-17 23:14:51,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.01 11:14:50" (2/3) ... [2022-01-17 23:14:51,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43d2dcdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.01 11:14:51, skipping insertion in model container [2022-01-17 23:14:51,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.01 11:14:51" (3/3) ... [2022-01-17 23:14:51,203 INFO L111 eAbstractionObserver]: Analyzing ICFG safe011_tso.i [2022-01-17 23:14:51,206 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-17 23:14:51,206 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-17 23:14:51,206 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-17 23:14:51,207 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-17 23:14:51,260 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,260 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,260 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,260 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,260 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,261 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,261 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,261 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,261 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,261 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,261 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,262 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,262 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,262 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,262 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,262 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,262 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,262 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,262 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,262 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,263 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,263 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,263 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,263 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,263 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,263 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,264 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,264 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,264 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,264 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,264 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,264 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,264 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,264 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,265 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,265 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,267 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,267 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,267 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,267 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,269 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,269 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,269 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,269 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,270 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,270 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,270 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,270 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-17 23:14:51,270 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-17 23:14:51,314 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-17 23:14:51,323 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-17 23:14:51,323 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-17 23:14:51,338 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 99 places, 91 transitions, 197 flow [2022-01-17 23:14:51,543 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6590 states, 6589 states have (on average 3.5052359993929274) internal successors, (23096), 6589 states have internal predecessors, (23096), 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) [2022-01-17 23:14:51,560 INFO L276 IsEmpty]: Start isEmpty. Operand has 6590 states, 6589 states have (on average 3.5052359993929274) internal successors, (23096), 6589 states have internal predecessors, (23096), 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) [2022-01-17 23:14:51,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-17 23:14:51,585 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:14:51,586 INFO L514 BasicCegarLoop]: 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] [2022-01-17 23:14:51,586 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:14:51,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:14:51,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1250208404, now seen corresponding path program 1 times [2022-01-17 23:14:51,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:14:51,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425207042] [2022-01-17 23:14:51,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:14:51,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:14:51,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:14:51,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:14:51,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:14:51,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425207042] [2022-01-17 23:14:51,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425207042] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:14:51,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:14:51,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-17 23:14:51,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847070808] [2022-01-17 23:14:51,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:14:51,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-17 23:14:51,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:14:51,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-17 23:14:51,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-17 23:14:51,982 INFO L87 Difference]: Start difference. First operand has 6590 states, 6589 states have (on average 3.5052359993929274) internal successors, (23096), 6589 states have internal predecessors, (23096), 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 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2022-01-17 23:14:52,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:14:52,289 INFO L93 Difference]: Finished difference Result 11667 states and 39717 transitions. [2022-01-17 23:14:52,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-17 23:14:52,292 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2022-01-17 23:14:52,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:14:52,347 INFO L225 Difference]: With dead ends: 11667 [2022-01-17 23:14:52,347 INFO L226 Difference]: Without dead ends: 7353 [2022-01-17 23:14:52,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-01-17 23:14:52,353 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 187 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-17 23:14:52,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 627 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-17 23:14:52,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7353 states. [2022-01-17 23:14:52,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7353 to 6121. [2022-01-17 23:14:52,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6121 states, 6120 states have (on average 3.3326797385620917) internal successors, (20396), 6120 states have internal predecessors, (20396), 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) [2022-01-17 23:14:52,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6121 states to 6121 states and 20396 transitions. [2022-01-17 23:14:52,664 INFO L78 Accepts]: Start accepts. Automaton has 6121 states and 20396 transitions. Word has length 54 [2022-01-17 23:14:52,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:14:52,665 INFO L470 AbstractCegarLoop]: Abstraction has 6121 states and 20396 transitions. [2022-01-17 23:14:52,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2022-01-17 23:14:52,666 INFO L276 IsEmpty]: Start isEmpty. Operand 6121 states and 20396 transitions. [2022-01-17 23:14:52,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-17 23:14:52,676 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:14:52,676 INFO L514 BasicCegarLoop]: 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] [2022-01-17 23:14:52,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-17 23:14:52,677 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:14:52,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:14:52,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1385860435, now seen corresponding path program 1 times [2022-01-17 23:14:52,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:14:52,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062472523] [2022-01-17 23:14:52,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:14:52,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:14:52,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:14:52,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:14:52,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:14:52,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062472523] [2022-01-17 23:14:52,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062472523] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:14:52,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:14:52,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-17 23:14:52,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767168419] [2022-01-17 23:14:52,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:14:52,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-17 23:14:52,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:14:52,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-17 23:14:52,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-17 23:14:52,795 INFO L87 Difference]: Start difference. First operand 6121 states and 20396 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2022-01-17 23:14:52,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:14:52,987 INFO L93 Difference]: Finished difference Result 9596 states and 31681 transitions. [2022-01-17 23:14:52,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-17 23:14:52,987 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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 56 [2022-01-17 23:14:52,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:14:53,034 INFO L225 Difference]: With dead ends: 9596 [2022-01-17 23:14:53,034 INFO L226 Difference]: Without dead ends: 7571 [2022-01-17 23:14:53,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-01-17 23:14:53,035 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 188 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:14:53,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 635 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:14:53,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7571 states. [2022-01-17 23:14:53,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7571 to 5831. [2022-01-17 23:14:53,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5831 states, 5830 states have (on average 3.314236706689537) internal successors, (19322), 5830 states have internal predecessors, (19322), 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) [2022-01-17 23:14:53,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5831 states to 5831 states and 19322 transitions. [2022-01-17 23:14:53,310 INFO L78 Accepts]: Start accepts. Automaton has 5831 states and 19322 transitions. Word has length 56 [2022-01-17 23:14:53,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:14:53,312 INFO L470 AbstractCegarLoop]: Abstraction has 5831 states and 19322 transitions. [2022-01-17 23:14:53,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2022-01-17 23:14:53,313 INFO L276 IsEmpty]: Start isEmpty. Operand 5831 states and 19322 transitions. [2022-01-17 23:14:53,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-17 23:14:53,325 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:14:53,326 INFO L514 BasicCegarLoop]: 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] [2022-01-17 23:14:53,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-17 23:14:53,326 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:14:53,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:14:53,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1201774260, now seen corresponding path program 1 times [2022-01-17 23:14:53,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:14:53,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801810235] [2022-01-17 23:14:53,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:14:53,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:14:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:14:53,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:14:53,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:14:53,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801810235] [2022-01-17 23:14:53,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801810235] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:14:53,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:14:53,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-17 23:14:53,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104591354] [2022-01-17 23:14:53,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:14:53,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-17 23:14:53,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:14:53,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-17 23:14:53,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-17 23:14:53,466 INFO L87 Difference]: Start difference. First operand 5831 states and 19322 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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) [2022-01-17 23:14:53,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:14:53,711 INFO L93 Difference]: Finished difference Result 9361 states and 30651 transitions. [2022-01-17 23:14:53,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-17 23:14:53,712 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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 58 [2022-01-17 23:14:53,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:14:53,736 INFO L225 Difference]: With dead ends: 9361 [2022-01-17 23:14:53,736 INFO L226 Difference]: Without dead ends: 7411 [2022-01-17 23:14:53,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2022-01-17 23:14:53,737 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 280 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:14:53,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 583 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:14:53,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7411 states. [2022-01-17 23:14:53,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7411 to 5571. [2022-01-17 23:14:53,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5571 states, 5570 states have (on average 3.3012567324955118) internal successors, (18388), 5570 states have internal predecessors, (18388), 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) [2022-01-17 23:14:53,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5571 states to 5571 states and 18388 transitions. [2022-01-17 23:14:53,929 INFO L78 Accepts]: Start accepts. Automaton has 5571 states and 18388 transitions. Word has length 58 [2022-01-17 23:14:53,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:14:53,929 INFO L470 AbstractCegarLoop]: Abstraction has 5571 states and 18388 transitions. [2022-01-17 23:14:53,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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) [2022-01-17 23:14:53,929 INFO L276 IsEmpty]: Start isEmpty. Operand 5571 states and 18388 transitions. [2022-01-17 23:14:53,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-17 23:14:53,940 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:14:53,940 INFO L514 BasicCegarLoop]: 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] [2022-01-17 23:14:53,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-17 23:14:53,941 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:14:53,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:14:53,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1435773668, now seen corresponding path program 2 times [2022-01-17 23:14:53,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:14:53,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821012428] [2022-01-17 23:14:53,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:14:53,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:14:53,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:14:54,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:14:54,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:14:54,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821012428] [2022-01-17 23:14:54,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821012428] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:14:54,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:14:54,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-17 23:14:54,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592461722] [2022-01-17 23:14:54,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:14:54,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-17 23:14:54,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:14:54,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-17 23:14:54,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-01-17 23:14:54,021 INFO L87 Difference]: Start difference. First operand 5571 states and 18388 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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) [2022-01-17 23:14:54,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:14:54,234 INFO L93 Difference]: Finished difference Result 7185 states and 23387 transitions. [2022-01-17 23:14:54,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-17 23:14:54,234 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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 58 [2022-01-17 23:14:54,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:14:54,246 INFO L225 Difference]: With dead ends: 7185 [2022-01-17 23:14:54,246 INFO L226 Difference]: Without dead ends: 3360 [2022-01-17 23:14:54,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-01-17 23:14:54,249 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 280 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:14:54,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 512 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:14:54,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3360 states. [2022-01-17 23:14:54,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3360 to 3136. [2022-01-17 23:14:54,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 3135 states have (on average 3.1371610845295055) internal successors, (9835), 3135 states have internal predecessors, (9835), 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) [2022-01-17 23:14:54,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 9835 transitions. [2022-01-17 23:14:54,358 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 9835 transitions. Word has length 58 [2022-01-17 23:14:54,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:14:54,358 INFO L470 AbstractCegarLoop]: Abstraction has 3136 states and 9835 transitions. [2022-01-17 23:14:54,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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) [2022-01-17 23:14:54,359 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 9835 transitions. [2022-01-17 23:14:54,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-17 23:14:54,364 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:14:54,364 INFO L514 BasicCegarLoop]: 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] [2022-01-17 23:14:54,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-17 23:14:54,364 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:14:54,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:14:54,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1703279368, now seen corresponding path program 1 times [2022-01-17 23:14:54,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:14:54,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531603991] [2022-01-17 23:14:54,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:14:54,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:14:54,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:14:54,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:14:54,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:14:54,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531603991] [2022-01-17 23:14:54,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531603991] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:14:54,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:14:54,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-17 23:14:54,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735917849] [2022-01-17 23:14:54,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:14:54,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-17 23:14:54,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:14:54,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-17 23:14:54,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-17 23:14:54,420 INFO L87 Difference]: Start difference. First operand 3136 states and 9835 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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) [2022-01-17 23:14:54,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:14:54,492 INFO L93 Difference]: Finished difference Result 3556 states and 11126 transitions. [2022-01-17 23:14:54,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-17 23:14:54,492 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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 59 [2022-01-17 23:14:54,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:14:54,500 INFO L225 Difference]: With dead ends: 3556 [2022-01-17 23:14:54,500 INFO L226 Difference]: Without dead ends: 2856 [2022-01-17 23:14:54,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-17 23:14:54,502 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 74 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:14:54,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 428 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:14:54,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2856 states. [2022-01-17 23:14:54,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2856 to 2856. [2022-01-17 23:14:54,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2856 states, 2855 states have (on average 3.1078809106830123) internal successors, (8873), 2855 states have internal predecessors, (8873), 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) [2022-01-17 23:14:54,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2856 states to 2856 states and 8873 transitions. [2022-01-17 23:14:54,557 INFO L78 Accepts]: Start accepts. Automaton has 2856 states and 8873 transitions. Word has length 59 [2022-01-17 23:14:54,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:14:54,557 INFO L470 AbstractCegarLoop]: Abstraction has 2856 states and 8873 transitions. [2022-01-17 23:14:54,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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) [2022-01-17 23:14:54,557 INFO L276 IsEmpty]: Start isEmpty. Operand 2856 states and 8873 transitions. [2022-01-17 23:14:54,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-17 23:14:54,562 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:14:54,562 INFO L514 BasicCegarLoop]: 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] [2022-01-17 23:14:54,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-17 23:14:54,564 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:14:54,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:14:54,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1558244569, now seen corresponding path program 1 times [2022-01-17 23:14:54,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:14:54,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002938282] [2022-01-17 23:14:54,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:14:54,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:14:54,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:14:54,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:14:54,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:14:54,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002938282] [2022-01-17 23:14:54,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002938282] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:14:54,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:14:54,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-17 23:14:54,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685170140] [2022-01-17 23:14:54,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:14:54,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-17 23:14:54,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:14:54,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-17 23:14:54,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-17 23:14:54,670 INFO L87 Difference]: Start difference. First operand 2856 states and 8873 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:14:54,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:14:54,783 INFO L93 Difference]: Finished difference Result 3425 states and 10507 transitions. [2022-01-17 23:14:54,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-17 23:14:54,784 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-17 23:14:54,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:14:54,789 INFO L225 Difference]: With dead ends: 3425 [2022-01-17 23:14:54,789 INFO L226 Difference]: Without dead ends: 2555 [2022-01-17 23:14:54,790 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-17 23:14:54,791 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 140 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:14:54,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 350 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:14:54,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2555 states. [2022-01-17 23:14:54,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2555 to 2555. [2022-01-17 23:14:54,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2555 states, 2554 states have (on average 3.0469851213782304) internal successors, (7782), 2554 states have internal predecessors, (7782), 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) [2022-01-17 23:14:54,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2555 states to 2555 states and 7782 transitions. [2022-01-17 23:14:54,839 INFO L78 Accepts]: Start accepts. Automaton has 2555 states and 7782 transitions. Word has length 61 [2022-01-17 23:14:54,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:14:54,840 INFO L470 AbstractCegarLoop]: Abstraction has 2555 states and 7782 transitions. [2022-01-17 23:14:54,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:14:54,840 INFO L276 IsEmpty]: Start isEmpty. Operand 2555 states and 7782 transitions. [2022-01-17 23:14:54,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-17 23:14:54,844 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:14:54,844 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-17 23:14:54,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-17 23:14:54,844 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:14:54,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:14:54,845 INFO L85 PathProgramCache]: Analyzing trace with hash -726345812, now seen corresponding path program 1 times [2022-01-17 23:14:54,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:14:54,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139276503] [2022-01-17 23:14:54,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:14:54,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:14:54,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:14:54,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:14:54,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:14:54,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139276503] [2022-01-17 23:14:54,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139276503] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:14:54,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:14:54,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-17 23:14:54,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041867282] [2022-01-17 23:14:54,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:14:54,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-17 23:14:54,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:14:54,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-17 23:14:54,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-17 23:14:54,943 INFO L87 Difference]: Start difference. First operand 2555 states and 7782 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:14:55,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:14:55,022 INFO L93 Difference]: Finished difference Result 2432 states and 7190 transitions. [2022-01-17 23:14:55,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-17 23:14:55,022 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2022-01-17 23:14:55,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:14:55,026 INFO L225 Difference]: With dead ends: 2432 [2022-01-17 23:14:55,026 INFO L226 Difference]: Without dead ends: 1745 [2022-01-17 23:14:55,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-01-17 23:14:55,027 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 212 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:14:55,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 388 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:14:55,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1745 states. [2022-01-17 23:14:55,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1745 to 1745. [2022-01-17 23:14:55,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1745 states, 1744 states have (on average 2.8916284403669725) internal successors, (5043), 1744 states have internal predecessors, (5043), 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) [2022-01-17 23:14:55,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1745 states to 1745 states and 5043 transitions. [2022-01-17 23:14:55,052 INFO L78 Accepts]: Start accepts. Automaton has 1745 states and 5043 transitions. Word has length 62 [2022-01-17 23:14:55,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:14:55,052 INFO L470 AbstractCegarLoop]: Abstraction has 1745 states and 5043 transitions. [2022-01-17 23:14:55,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:14:55,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1745 states and 5043 transitions. [2022-01-17 23:14:55,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-17 23:14:55,054 INFO L506 BasicCegarLoop]: Found error trace [2022-01-17 23:14:55,054 INFO L514 BasicCegarLoop]: 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] [2022-01-17 23:14:55,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-17 23:14:55,055 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-17 23:14:55,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-17 23:14:55,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1684131233, now seen corresponding path program 1 times [2022-01-17 23:14:55,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-17 23:14:55,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036998568] [2022-01-17 23:14:55,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-17 23:14:55,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-17 23:14:55,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-17 23:14:55,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-17 23:14:55,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-17 23:14:55,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036998568] [2022-01-17 23:14:55,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036998568] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-17 23:14:55,111 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-17 23:14:55,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-17 23:14:55,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627612753] [2022-01-17 23:14:55,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-17 23:14:55,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-17 23:14:55,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-17 23:14:55,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-17 23:14:55,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-17 23:14:55,112 INFO L87 Difference]: Start difference. First operand 1745 states and 5043 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:14:55,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-17 23:14:55,168 INFO L93 Difference]: Finished difference Result 1196 states and 3357 transitions. [2022-01-17 23:14:55,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-17 23:14:55,168 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-01-17 23:14:55,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-17 23:14:55,168 INFO L225 Difference]: With dead ends: 1196 [2022-01-17 23:14:55,168 INFO L226 Difference]: Without dead ends: 0 [2022-01-17 23:14:55,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-01-17 23:14:55,169 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 266 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-17 23:14:55,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [266 Valid, 299 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-17 23:14:55,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-17 23:14:55,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-17 23:14:55,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:14:55,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-17 23:14:55,170 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 64 [2022-01-17 23:14:55,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-17 23:14:55,170 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-17 23:14:55,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-17 23:14:55,170 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-17 23:14:55,170 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-17 23:14:55,172 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-17 23:14:55,172 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-17 23:14:55,172 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-17 23:14:55,172 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-17 23:14:55,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-17 23:14:55,174 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2022-01-17 23:14:55,175 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-17 23:14:55,175 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-17 23:14:55,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.01 11:14:55 BasicIcfg [2022-01-17 23:14:55,177 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-17 23:14:55,177 INFO L158 Benchmark]: Toolchain (without parser) took 4674.73ms. Allocated memory was 379.6MB in the beginning and 1.1GB in the end (delta: 694.2MB). Free memory was 326.5MB in the beginning and 781.5MB in the end (delta: -455.0MB). Peak memory consumption was 241.3MB. Max. memory is 16.0GB. [2022-01-17 23:14:55,177 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 379.6MB. Free memory is still 345.1MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-17 23:14:55,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.77ms. Allocated memory is still 379.6MB. Free memory was 326.2MB in the beginning and 344.9MB in the end (delta: -18.7MB). Peak memory consumption was 17.3MB. Max. memory is 16.0GB. [2022-01-17 23:14:55,177 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.65ms. Allocated memory is still 379.6MB. Free memory was 344.5MB in the beginning and 342.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-17 23:14:55,178 INFO L158 Benchmark]: Boogie Preprocessor took 24.63ms. Allocated memory is still 379.6MB. Free memory was 342.8MB in the beginning and 341.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-17 23:14:55,178 INFO L158 Benchmark]: RCFGBuilder took 341.68ms. Allocated memory is still 379.6MB. Free memory was 341.1MB in the beginning and 329.4MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2022-01-17 23:14:55,178 INFO L158 Benchmark]: TraceAbstraction took 3977.11ms. Allocated memory was 379.6MB in the beginning and 1.1GB in the end (delta: 694.2MB). Free memory was 328.5MB in the beginning and 781.5MB in the end (delta: -453.0MB). Peak memory consumption was 242.9MB. Max. memory is 16.0GB. [2022-01-17 23:14:55,179 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 379.6MB. Free memory is still 345.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 296.77ms. Allocated memory is still 379.6MB. Free memory was 326.2MB in the beginning and 344.9MB in the end (delta: -18.7MB). Peak memory consumption was 17.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 30.65ms. Allocated memory is still 379.6MB. Free memory was 344.5MB in the beginning and 342.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 24.63ms. Allocated memory is still 379.6MB. Free memory was 342.8MB in the beginning and 341.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 341.68ms. Allocated memory is still 379.6MB. Free memory was 341.1MB in the beginning and 329.4MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 3977.11ms. Allocated memory was 379.6MB in the beginning and 1.1GB in the end (delta: 694.2MB). Free memory was 328.5MB in the beginning and 781.5MB in the end (delta: -453.0MB). Peak memory consumption was 242.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 114 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.9s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1627 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1627 mSDsluCounter, 3822 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3051 mSDsCounter, 67 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 433 IncrementalHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 67 mSolverCounterUnsat, 853 mSDtfsCounter, 433 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6590occurred in iteration=0, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 5036 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 472 NumberOfCodeBlocks, 472 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 464 ConstructedInterpolants, 0 QuantifiedInterpolants, 2010 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-17 23:14:55,202 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...