/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 02:57:04,130 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 02:57:04,133 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 02:57:04,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 02:57:04,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 02:57:04,147 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 02:57:04,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 02:57:04,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 02:57:04,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 02:57:04,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 02:57:04,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 02:57:04,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 02:57:04,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 02:57:04,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 02:57:04,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 02:57:04,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 02:57:04,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 02:57:04,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 02:57:04,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 02:57:04,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 02:57:04,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 02:57:04,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 02:57:04,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 02:57:04,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 02:57:04,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 02:57:04,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 02:57:04,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 02:57:04,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 02:57:04,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 02:57:04,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 02:57:04,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 02:57:04,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 02:57:04,176 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 02:57:04,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 02:57:04,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 02:57:04,178 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 02:57:04,179 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 02:57:04,179 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 02:57:04,179 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 02:57:04,180 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 02:57:04,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 02:57:04,182 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-VariableLbe.epf [2020-04-18 02:57:04,197 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 02:57:04,197 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 02:57:04,199 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 02:57:04,199 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 02:57:04,199 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 02:57:04,199 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 02:57:04,200 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 02:57:04,200 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 02:57:04,200 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 02:57:04,200 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 02:57:04,201 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 02:57:04,201 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 02:57:04,201 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 02:57:04,201 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 02:57:04,201 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 02:57:04,202 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 02:57:04,202 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 02:57:04,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 02:57:04,202 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 02:57:04,202 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 02:57:04,203 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 02:57:04,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 02:57:04,203 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 02:57:04,203 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 02:57:04,203 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 02:57:04,204 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-18 02:57:04,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 02:57:04,204 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 02:57:04,204 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 02:57:04,205 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 02:57:04,536 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 02:57:04,559 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 02:57:04,562 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 02:57:04,564 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 02:57:04,564 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 02:57:04,565 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2020-04-18 02:57:04,634 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de61c0d78/02ab4539389c44c7b4bbc42c5ea27dc4/FLAG2f989911e [2020-04-18 02:57:05,201 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 02:57:05,202 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.opt.i [2020-04-18 02:57:05,227 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de61c0d78/02ab4539389c44c7b4bbc42c5ea27dc4/FLAG2f989911e [2020-04-18 02:57:05,426 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de61c0d78/02ab4539389c44c7b4bbc42c5ea27dc4 [2020-04-18 02:57:05,436 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 02:57:05,459 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 02:57:05,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 02:57:05,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 02:57:05,464 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 02:57:05,465 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:57:05" (1/1) ... [2020-04-18 02:57:05,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46acebc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:57:05, skipping insertion in model container [2020-04-18 02:57:05,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:57:05" (1/1) ... [2020-04-18 02:57:05,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 02:57:05,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 02:57:06,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 02:57:06,093 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 02:57:06,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 02:57:06,255 INFO L208 MainTranslator]: Completed translation [2020-04-18 02:57:06,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:57:06 WrapperNode [2020-04-18 02:57:06,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 02:57:06,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 02:57:06,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 02:57:06,257 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 02:57:06,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:57:06" (1/1) ... [2020-04-18 02:57:06,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:57:06" (1/1) ... [2020-04-18 02:57:06,304 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 02:57:06,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 02:57:06,304 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 02:57:06,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 02:57:06,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:57:06" (1/1) ... [2020-04-18 02:57:06,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:57:06" (1/1) ... [2020-04-18 02:57:06,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:57:06" (1/1) ... [2020-04-18 02:57:06,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:57:06" (1/1) ... [2020-04-18 02:57:06,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:57:06" (1/1) ... [2020-04-18 02:57:06,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:57:06" (1/1) ... [2020-04-18 02:57:06,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:57:06" (1/1) ... [2020-04-18 02:57:06,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 02:57:06,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 02:57:06,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 02:57:06,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 02:57:06,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:57:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 02:57:06,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 02:57:06,407 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 02:57:06,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 02:57:06,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 02:57:06,408 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 02:57:06,408 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 02:57:06,409 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 02:57:06,409 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 02:57:06,410 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 02:57:06,410 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 02:57:06,410 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-04-18 02:57:06,411 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-04-18 02:57:06,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 02:57:06,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 02:57:06,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 02:57:06,413 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 02:57:06,873 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 02:57:06,873 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 02:57:06,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 02:57:06 BoogieIcfgContainer [2020-04-18 02:57:06,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 02:57:06,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 02:57:06,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 02:57:06,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 02:57:06,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 02:57:05" (1/3) ... [2020-04-18 02:57:06,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eb63c6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 02:57:06, skipping insertion in model container [2020-04-18 02:57:06,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:57:06" (2/3) ... [2020-04-18 02:57:06,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eb63c6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 02:57:06, skipping insertion in model container [2020-04-18 02:57:06,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 02:57:06" (3/3) ... [2020-04-18 02:57:06,888 INFO L109 eAbstractionObserver]: Analyzing ICFG thin002_tso.opt.i [2020-04-18 02:57:06,898 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 02:57:06,899 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 02:57:06,907 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 02:57:06,908 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 02:57:06,942 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,943 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,943 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,944 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,944 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,944 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,946 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,946 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,946 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,947 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,948 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,948 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,949 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,950 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,950 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,950 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,950 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,951 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,951 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,951 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,952 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,952 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,955 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,955 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,960 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,961 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,961 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,961 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,971 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,972 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,972 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,973 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,975 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,976 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,976 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,976 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,982 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,983 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,984 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:06,984 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:57:07,001 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-04-18 02:57:07,022 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 02:57:07,023 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 02:57:07,023 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 02:57:07,023 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 02:57:07,023 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 02:57:07,023 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 02:57:07,023 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 02:57:07,023 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 02:57:07,050 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 86 transitions, 192 flow [2020-04-18 02:57:07,052 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-04-18 02:57:07,109 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-04-18 02:57:07,109 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 02:57:07,115 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2020-04-18 02:57:07,118 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-04-18 02:57:07,145 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-04-18 02:57:07,145 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 02:57:07,146 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2020-04-18 02:57:07,149 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2016 [2020-04-18 02:57:07,151 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 02:57:08,717 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-04-18 02:57:08,806 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4485 [2020-04-18 02:57:08,806 INFO L214 etLargeBlockEncoding]: Total number of compositions: 67 [2020-04-18 02:57:08,810 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 29 transitions, 78 flow [2020-04-18 02:57:08,949 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1450 states. [2020-04-18 02:57:08,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-04-18 02:57:08,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-18 02:57:08,966 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:57:08,967 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:57:08,967 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:57:08,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:57:08,974 INFO L82 PathProgramCache]: Analyzing trace with hash 546901279, now seen corresponding path program 1 times [2020-04-18 02:57:08,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:57:08,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401324660] [2020-04-18 02:57:08,990 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:57:09,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:57:09,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:57:09,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401324660] [2020-04-18 02:57:09,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:57:09,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:57:09,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139202621] [2020-04-18 02:57:09,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-18 02:57:09,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:57:09,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 02:57:09,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 02:57:09,227 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 2 states. [2020-04-18 02:57:09,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:57:09,296 INFO L93 Difference]: Finished difference Result 1450 states and 5376 transitions. [2020-04-18 02:57:09,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-18 02:57:09,297 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-04-18 02:57:09,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:57:09,355 INFO L225 Difference]: With dead ends: 1450 [2020-04-18 02:57:09,356 INFO L226 Difference]: Without dead ends: 1194 [2020-04-18 02:57:09,357 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 02:57:09,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2020-04-18 02:57:09,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2020-04-18 02:57:09,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-04-18 02:57:09,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 4352 transitions. [2020-04-18 02:57:09,559 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 4352 transitions. Word has length 10 [2020-04-18 02:57:09,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:57:09,564 INFO L479 AbstractCegarLoop]: Abstraction has 1194 states and 4352 transitions. [2020-04-18 02:57:09,565 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-18 02:57:09,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 4352 transitions. [2020-04-18 02:57:09,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 02:57:09,579 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:57:09,579 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:57:09,580 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:57:09,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:57:09,580 INFO L82 PathProgramCache]: Analyzing trace with hash -225951647, now seen corresponding path program 1 times [2020-04-18 02:57:09,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:57:09,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949571442] [2020-04-18 02:57:09,582 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:57:09,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:57:09,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:57:09,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949571442] [2020-04-18 02:57:09,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:57:09,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:57:09,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115189678] [2020-04-18 02:57:09,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:57:09,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:57:09,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:57:09,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:57:09,785 INFO L87 Difference]: Start difference. First operand 1194 states and 4352 transitions. Second operand 4 states. [2020-04-18 02:57:09,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:57:09,849 INFO L93 Difference]: Finished difference Result 1322 states and 4640 transitions. [2020-04-18 02:57:09,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:57:09,850 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-04-18 02:57:09,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:57:09,860 INFO L225 Difference]: With dead ends: 1322 [2020-04-18 02:57:09,860 INFO L226 Difference]: Without dead ends: 1066 [2020-04-18 02:57:09,861 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:57:09,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-04-18 02:57:09,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-04-18 02:57:09,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-04-18 02:57:09,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3808 transitions. [2020-04-18 02:57:09,906 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3808 transitions. Word has length 11 [2020-04-18 02:57:09,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:57:09,907 INFO L479 AbstractCegarLoop]: Abstraction has 1066 states and 3808 transitions. [2020-04-18 02:57:09,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:57:09,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3808 transitions. [2020-04-18 02:57:09,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 02:57:09,909 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:57:09,909 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:57:09,909 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:57:09,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:57:09,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1527944373, now seen corresponding path program 1 times [2020-04-18 02:57:09,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:57:09,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781992621] [2020-04-18 02:57:09,911 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:57:09,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:57:10,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:57:10,045 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781992621] [2020-04-18 02:57:10,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:57:10,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:57:10,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765849520] [2020-04-18 02:57:10,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:57:10,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:57:10,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:57:10,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:57:10,047 INFO L87 Difference]: Start difference. First operand 1066 states and 3808 transitions. Second operand 4 states. [2020-04-18 02:57:10,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:57:10,088 INFO L93 Difference]: Finished difference Result 1162 states and 4016 transitions. [2020-04-18 02:57:10,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:57:10,089 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-18 02:57:10,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:57:10,098 INFO L225 Difference]: With dead ends: 1162 [2020-04-18 02:57:10,098 INFO L226 Difference]: Without dead ends: 970 [2020-04-18 02:57:10,099 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:57:10,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2020-04-18 02:57:10,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2020-04-18 02:57:10,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2020-04-18 02:57:10,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 3408 transitions. [2020-04-18 02:57:10,135 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 3408 transitions. Word has length 12 [2020-04-18 02:57:10,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:57:10,135 INFO L479 AbstractCegarLoop]: Abstraction has 970 states and 3408 transitions. [2020-04-18 02:57:10,136 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:57:10,136 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 3408 transitions. [2020-04-18 02:57:10,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 02:57:10,138 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:57:10,138 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:57:10,138 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:57:10,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:57:10,138 INFO L82 PathProgramCache]: Analyzing trace with hash 847962781, now seen corresponding path program 1 times [2020-04-18 02:57:10,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:57:10,139 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916454599] [2020-04-18 02:57:10,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:57:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:57:10,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:57:10,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916454599] [2020-04-18 02:57:10,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:57:10,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:57:10,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076961948] [2020-04-18 02:57:10,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:57:10,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:57:10,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:57:10,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:57:10,241 INFO L87 Difference]: Start difference. First operand 970 states and 3408 transitions. Second operand 4 states. [2020-04-18 02:57:10,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:57:10,267 INFO L93 Difference]: Finished difference Result 1042 states and 3558 transitions. [2020-04-18 02:57:10,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:57:10,268 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-04-18 02:57:10,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:57:10,276 INFO L225 Difference]: With dead ends: 1042 [2020-04-18 02:57:10,276 INFO L226 Difference]: Without dead ends: 898 [2020-04-18 02:57:10,276 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:57:10,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2020-04-18 02:57:10,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 898. [2020-04-18 02:57:10,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2020-04-18 02:57:10,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 3114 transitions. [2020-04-18 02:57:10,308 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 3114 transitions. Word has length 13 [2020-04-18 02:57:10,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:57:10,308 INFO L479 AbstractCegarLoop]: Abstraction has 898 states and 3114 transitions. [2020-04-18 02:57:10,309 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:57:10,309 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 3114 transitions. [2020-04-18 02:57:10,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 02:57:10,311 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:57:10,311 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:57:10,311 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:57:10,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:57:10,311 INFO L82 PathProgramCache]: Analyzing trace with hash 517017440, now seen corresponding path program 1 times [2020-04-18 02:57:10,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:57:10,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674991244] [2020-04-18 02:57:10,312 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:57:10,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:57:10,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:57:10,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674991244] [2020-04-18 02:57:10,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:57:10,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:57:10,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686001762] [2020-04-18 02:57:10,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:57:10,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:57:10,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:57:10,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:57:10,376 INFO L87 Difference]: Start difference. First operand 898 states and 3114 transitions. Second operand 5 states. [2020-04-18 02:57:10,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:57:10,448 INFO L93 Difference]: Finished difference Result 1126 states and 3833 transitions. [2020-04-18 02:57:10,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 02:57:10,449 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-04-18 02:57:10,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:57:10,454 INFO L225 Difference]: With dead ends: 1126 [2020-04-18 02:57:10,454 INFO L226 Difference]: Without dead ends: 508 [2020-04-18 02:57:10,454 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 02:57:10,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-04-18 02:57:10,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 508. [2020-04-18 02:57:10,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2020-04-18 02:57:10,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 1638 transitions. [2020-04-18 02:57:10,493 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 1638 transitions. Word has length 14 [2020-04-18 02:57:10,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:57:10,493 INFO L479 AbstractCegarLoop]: Abstraction has 508 states and 1638 transitions. [2020-04-18 02:57:10,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:57:10,494 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 1638 transitions. [2020-04-18 02:57:10,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 02:57:10,495 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:57:10,495 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:57:10,496 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:57:10,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:57:10,496 INFO L82 PathProgramCache]: Analyzing trace with hash -953413178, now seen corresponding path program 1 times [2020-04-18 02:57:10,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:57:10,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397847366] [2020-04-18 02:57:10,497 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:57:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:57:10,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:57:10,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397847366] [2020-04-18 02:57:10,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:57:10,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:57:10,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059677709] [2020-04-18 02:57:10,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:57:10,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:57:10,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:57:10,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:57:10,568 INFO L87 Difference]: Start difference. First operand 508 states and 1638 transitions. Second operand 5 states. [2020-04-18 02:57:10,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:57:10,618 INFO L93 Difference]: Finished difference Result 628 states and 1988 transitions. [2020-04-18 02:57:10,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 02:57:10,619 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-04-18 02:57:10,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:57:10,621 INFO L225 Difference]: With dead ends: 628 [2020-04-18 02:57:10,621 INFO L226 Difference]: Without dead ends: 286 [2020-04-18 02:57:10,622 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 02:57:10,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-04-18 02:57:10,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2020-04-18 02:57:10,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-04-18 02:57:10,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 856 transitions. [2020-04-18 02:57:10,631 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 856 transitions. Word has length 15 [2020-04-18 02:57:10,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:57:10,631 INFO L479 AbstractCegarLoop]: Abstraction has 286 states and 856 transitions. [2020-04-18 02:57:10,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:57:10,631 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 856 transitions. [2020-04-18 02:57:10,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-04-18 02:57:10,632 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:57:10,632 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:57:10,632 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:57:10,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:57:10,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1823834024, now seen corresponding path program 1 times [2020-04-18 02:57:10,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:57:10,633 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706516766] [2020-04-18 02:57:10,633 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:57:10,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:57:10,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:57:10,692 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706516766] [2020-04-18 02:57:10,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:57:10,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:57:10,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602935264] [2020-04-18 02:57:10,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:57:10,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:57:10,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:57:10,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:57:10,694 INFO L87 Difference]: Start difference. First operand 286 states and 856 transitions. Second operand 5 states. [2020-04-18 02:57:10,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:57:10,734 INFO L93 Difference]: Finished difference Result 370 states and 1068 transitions. [2020-04-18 02:57:10,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 02:57:10,734 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-04-18 02:57:10,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:57:10,736 INFO L225 Difference]: With dead ends: 370 [2020-04-18 02:57:10,736 INFO L226 Difference]: Without dead ends: 154 [2020-04-18 02:57:10,736 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 02:57:10,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-04-18 02:57:10,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-04-18 02:57:10,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-04-18 02:57:10,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 410 transitions. [2020-04-18 02:57:10,741 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 410 transitions. Word has length 16 [2020-04-18 02:57:10,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:57:10,742 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 410 transitions. [2020-04-18 02:57:10,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:57:10,742 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 410 transitions. [2020-04-18 02:57:10,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 02:57:10,743 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:57:10,743 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:57:10,743 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:57:10,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:57:10,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1157328918, now seen corresponding path program 1 times [2020-04-18 02:57:10,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:57:10,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415319761] [2020-04-18 02:57:10,744 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:57:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:57:10,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:57:10,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415319761] [2020-04-18 02:57:10,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:57:10,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:57:10,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077950324] [2020-04-18 02:57:10,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:57:10,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:57:10,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:57:10,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:57:10,837 INFO L87 Difference]: Start difference. First operand 154 states and 410 transitions. Second operand 5 states. [2020-04-18 02:57:10,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:57:10,887 INFO L93 Difference]: Finished difference Result 130 states and 334 transitions. [2020-04-18 02:57:10,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 02:57:10,890 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-04-18 02:57:10,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:57:10,891 INFO L225 Difference]: With dead ends: 130 [2020-04-18 02:57:10,891 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 02:57:10,891 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 02:57:10,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 02:57:10,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 02:57:10,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 02:57:10,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 02:57:10,896 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-04-18 02:57:10,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:57:10,896 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 02:57:10,896 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:57:10,896 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 02:57:10,896 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 02:57:10,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 02:57:10 BasicIcfg [2020-04-18 02:57:10,906 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 02:57:10,909 INFO L168 Benchmark]: Toolchain (without parser) took 5470.93 ms. Allocated memory was 140.5 MB in the beginning and 274.2 MB in the end (delta: 133.7 MB). Free memory was 104.3 MB in the beginning and 176.8 MB in the end (delta: -72.6 MB). Peak memory consumption was 61.1 MB. Max. memory is 7.1 GB. [2020-04-18 02:57:10,911 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 140.5 MB. Free memory was 123.7 MB in the beginning and 123.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-04-18 02:57:10,912 INFO L168 Benchmark]: CACSL2BoogieTranslator took 795.89 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 102.2 MB in the beginning and 160.1 MB in the end (delta: -57.9 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-04-18 02:57:10,913 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.77 ms. Allocated memory is still 205.5 MB. Free memory was 160.1 MB in the beginning and 158.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 02:57:10,914 INFO L168 Benchmark]: Boogie Preprocessor took 28.90 ms. Allocated memory is still 205.5 MB. Free memory was 158.1 MB in the beginning and 156.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 02:57:10,915 INFO L168 Benchmark]: RCFGBuilder took 544.80 ms. Allocated memory is still 205.5 MB. Free memory was 156.1 MB in the beginning and 131.3 MB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2020-04-18 02:57:10,917 INFO L168 Benchmark]: TraceAbstraction took 4026.88 ms. Allocated memory was 205.5 MB in the beginning and 274.2 MB in the end (delta: 68.7 MB). Free memory was 131.3 MB in the beginning and 176.8 MB in the end (delta: -45.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2020-04-18 02:57:10,928 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 140.5 MB. Free memory was 123.7 MB in the beginning and 123.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 795.89 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 102.2 MB in the beginning and 160.1 MB in the end (delta: -57.9 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.77 ms. Allocated memory is still 205.5 MB. Free memory was 160.1 MB in the beginning and 158.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.90 ms. Allocated memory is still 205.5 MB. Free memory was 158.1 MB in the beginning and 156.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 544.80 ms. Allocated memory is still 205.5 MB. Free memory was 156.1 MB in the beginning and 131.3 MB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4026.88 ms. Allocated memory was 205.5 MB in the beginning and 274.2 MB in the end (delta: 68.7 MB). Free memory was 131.3 MB in the beginning and 176.8 MB in the end (delta: -45.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 97 ProgramPointsBefore, 41 ProgramPointsAfterwards, 86 TransitionsBefore, 29 TransitionsAfterwards, 2016 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 1043 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 4485 CheckedPairsTotal, 67 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.8s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 235 SDtfs, 266 SDslu, 315 SDs, 0 SdLazy, 57 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 3905 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...