/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-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 05:35:50,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 05:35:50,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 05:35:50,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 05:35:50,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 05:35:50,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 05:35:50,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 05:35:50,224 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 05:35:50,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 05:35:50,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 05:35:50,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 05:35:50,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 05:35:50,229 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 05:35:50,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 05:35:50,231 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 05:35:50,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 05:35:50,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 05:35:50,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 05:35:50,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 05:35:50,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 05:35:50,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 05:35:50,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 05:35:50,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 05:35:50,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 05:35:50,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-19 05:35:50,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-19 05:35:50,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-19 05:35:50,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-19 05:35:50,246 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-19 05:35:50,247 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-19 05:35:50,248 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 05:35:50,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 05:35:50,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 05:35:50,250 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 05:35:50,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 05:35:50,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 05:35:50,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 05:35:50,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 05:35:50,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 05:35:50,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 05:35:50,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 05:35:50,255 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 [2019-12-19 05:35:50,271 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 05:35:50,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 05:35:50,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 05:35:50,274 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 05:35:50,274 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 05:35:50,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 05:35:50,274 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 05:35:50,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 05:35:50,275 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 05:35:50,275 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 05:35:50,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 05:35:50,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 05:35:50,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 05:35:50,277 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 05:35:50,277 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 05:35:50,277 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 05:35:50,277 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 05:35:50,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 05:35:50,278 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 05:35:50,278 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 05:35:50,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 05:35:50,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:35:50,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 05:35:50,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 05:35:50,279 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 05:35:50,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 05:35:50,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 05:35:50,280 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 05:35:50,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 05:35:50,280 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 05:35:50,576 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 05:35:50,596 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 05:35:50,600 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 05:35:50,601 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 05:35:50,602 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 05:35:50,603 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i [2019-12-19 05:35:50,676 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fe4cfece/9318a9eaa52248daa38378e257a3dd0b/FLAG55f51940f [2019-12-19 05:35:51,232 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 05:35:51,233 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i [2019-12-19 05:35:51,255 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fe4cfece/9318a9eaa52248daa38378e257a3dd0b/FLAG55f51940f [2019-12-19 05:35:51,534 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fe4cfece/9318a9eaa52248daa38378e257a3dd0b [2019-12-19 05:35:51,543 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 05:35:51,545 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 05:35:51,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 05:35:51,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 05:35:51,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 05:35:51,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:35:51" (1/1) ... [2019-12-19 05:35:51,557 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51df9b38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:35:51, skipping insertion in model container [2019-12-19 05:35:51,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:35:51" (1/1) ... [2019-12-19 05:35:51,565 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 05:35:51,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 05:35:52,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:35:52,135 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 05:35:52,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:35:52,292 INFO L208 MainTranslator]: Completed translation [2019-12-19 05:35:52,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:35:52 WrapperNode [2019-12-19 05:35:52,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 05:35:52,295 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 05:35:52,295 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 05:35:52,295 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 05:35:52,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:35:52" (1/1) ... [2019-12-19 05:35:52,320 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:35:52" (1/1) ... [2019-12-19 05:35:52,341 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 05:35:52,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 05:35:52,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 05:35:52,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 05:35:52,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:35:52" (1/1) ... [2019-12-19 05:35:52,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:35:52" (1/1) ... [2019-12-19 05:35:52,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:35:52" (1/1) ... [2019-12-19 05:35:52,354 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:35:52" (1/1) ... [2019-12-19 05:35:52,361 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:35:52" (1/1) ... [2019-12-19 05:35:52,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:35:52" (1/1) ... [2019-12-19 05:35:52,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:35:52" (1/1) ... [2019-12-19 05:35:52,369 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 05:35:52,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 05:35:52,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 05:35:52,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 05:35:52,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:35:52" (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 [2019-12-19 05:35:52,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 05:35:52,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 05:35:52,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 05:35:52,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 05:35:52,433 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 05:35:52,434 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 05:35:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 05:35:52,434 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 05:35:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 05:35:52,434 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 05:35:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-12-19 05:35:52,435 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-12-19 05:35:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 05:35:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 05:35:52,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 05:35:52,437 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 05:35:52,803 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 05:35:52,803 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 05:35:52,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:35:52 BoogieIcfgContainer [2019-12-19 05:35:52,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 05:35:52,806 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 05:35:52,806 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 05:35:52,809 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 05:35:52,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:35:51" (1/3) ... [2019-12-19 05:35:52,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36b4ca37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:35:52, skipping insertion in model container [2019-12-19 05:35:52,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:35:52" (2/3) ... [2019-12-19 05:35:52,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36b4ca37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:35:52, skipping insertion in model container [2019-12-19 05:35:52,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:35:52" (3/3) ... [2019-12-19 05:35:52,814 INFO L109 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc.i [2019-12-19 05:35:52,824 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 05:35:52,825 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 05:35:52,833 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 05:35:52,834 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 05:35:52,870 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,870 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,870 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,871 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,871 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,871 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,871 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,872 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,872 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,872 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,872 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,873 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,873 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,873 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,874 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,874 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,874 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,874 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,875 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,875 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,875 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,876 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,876 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,876 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,880 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,881 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,881 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,881 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,899 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,900 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,900 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,900 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,904 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,904 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,905 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,905 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,908 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,909 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,909 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,909 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:35:52,924 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-19 05:35:52,941 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:35:52,941 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:35:52,942 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:35:52,942 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:35:52,942 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:35:52,942 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:35:52,942 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:35:52,942 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:35:52,952 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 79 places, 67 transitions [2019-12-19 05:35:53,290 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5475 states. [2019-12-19 05:35:53,293 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states. [2019-12-19 05:35:53,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-19 05:35:53,326 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:35:53,328 INFO L411 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] [2019-12-19 05:35:53,328 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:35:53,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:35:53,336 INFO L82 PathProgramCache]: Analyzing trace with hash 2004379789, now seen corresponding path program 1 times [2019-12-19 05:35:53,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:35:53,346 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135185646] [2019-12-19 05:35:53,346 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:35:53,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:35:53,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:35:53,780 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135185646] [2019-12-19 05:35:53,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:35:53,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 05:35:53,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685253539] [2019-12-19 05:35:53,791 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 05:35:53,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:35:53,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 05:35:53,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 05:35:53,811 INFO L87 Difference]: Start difference. First operand 5475 states. Second operand 4 states. [2019-12-19 05:35:53,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:35:53,980 INFO L93 Difference]: Finished difference Result 5712 states and 21937 transitions. [2019-12-19 05:35:53,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 05:35:53,982 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2019-12-19 05:35:53,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:35:54,026 INFO L225 Difference]: With dead ends: 5712 [2019-12-19 05:35:54,027 INFO L226 Difference]: Without dead ends: 2396 [2019-12-19 05:35:54,029 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:35:54,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2396 states. [2019-12-19 05:35:54,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2396 to 2396. [2019-12-19 05:35:54,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2396 states. [2019-12-19 05:35:54,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2396 states to 2396 states and 8940 transitions. [2019-12-19 05:35:54,243 INFO L78 Accepts]: Start accepts. Automaton has 2396 states and 8940 transitions. Word has length 38 [2019-12-19 05:35:54,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:35:54,244 INFO L462 AbstractCegarLoop]: Abstraction has 2396 states and 8940 transitions. [2019-12-19 05:35:54,244 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 05:35:54,245 INFO L276 IsEmpty]: Start isEmpty. Operand 2396 states and 8940 transitions. [2019-12-19 05:35:54,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-12-19 05:35:54,251 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:35:54,251 INFO L411 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] [2019-12-19 05:35:54,252 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:35:54,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:35:54,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1300611009, now seen corresponding path program 1 times [2019-12-19 05:35:54,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:35:54,253 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74367250] [2019-12-19 05:35:54,253 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:35:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:35:54,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:35:54,487 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74367250] [2019-12-19 05:35:54,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:35:54,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 05:35:54,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66063716] [2019-12-19 05:35:54,489 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 05:35:54,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:35:54,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 05:35:54,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:35:54,491 INFO L87 Difference]: Start difference. First operand 2396 states and 8940 transitions. Second operand 5 states. [2019-12-19 05:35:54,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:35:54,610 INFO L93 Difference]: Finished difference Result 2567 states and 9324 transitions. [2019-12-19 05:35:54,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 05:35:54,610 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2019-12-19 05:35:54,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:35:54,630 INFO L225 Difference]: With dead ends: 2567 [2019-12-19 05:35:54,631 INFO L226 Difference]: Without dead ends: 2312 [2019-12-19 05:35:54,632 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:35:54,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2312 states. [2019-12-19 05:35:54,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2312 to 2312. [2019-12-19 05:35:54,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2312 states. [2019-12-19 05:35:54,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2312 states to 2312 states and 8548 transitions. [2019-12-19 05:35:54,746 INFO L78 Accepts]: Start accepts. Automaton has 2312 states and 8548 transitions. Word has length 39 [2019-12-19 05:35:54,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:35:54,747 INFO L462 AbstractCegarLoop]: Abstraction has 2312 states and 8548 transitions. [2019-12-19 05:35:54,747 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 05:35:54,747 INFO L276 IsEmpty]: Start isEmpty. Operand 2312 states and 8548 transitions. [2019-12-19 05:35:54,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-19 05:35:54,755 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:35:54,755 INFO L411 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] [2019-12-19 05:35:54,755 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:35:54,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:35:54,756 INFO L82 PathProgramCache]: Analyzing trace with hash -448422512, now seen corresponding path program 1 times [2019-12-19 05:35:54,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:35:54,756 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620390396] [2019-12-19 05:35:54,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:35:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:35:54,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:35:54,923 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620390396] [2019-12-19 05:35:54,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:35:54,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:35:54,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441104832] [2019-12-19 05:35:54,926 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:35:54,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:35:54,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:35:54,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:35:54,928 INFO L87 Difference]: Start difference. First operand 2312 states and 8548 transitions. Second operand 6 states. [2019-12-19 05:35:55,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:35:55,123 INFO L93 Difference]: Finished difference Result 2177 states and 7684 transitions. [2019-12-19 05:35:55,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:35:55,125 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2019-12-19 05:35:55,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:35:55,148 INFO L225 Difference]: With dead ends: 2177 [2019-12-19 05:35:55,148 INFO L226 Difference]: Without dead ends: 1934 [2019-12-19 05:35:55,149 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 05:35:55,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1934 states. [2019-12-19 05:35:55,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1934 to 1934. [2019-12-19 05:35:55,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1934 states. [2019-12-19 05:35:55,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1934 states to 1934 states and 6910 transitions. [2019-12-19 05:35:55,261 INFO L78 Accepts]: Start accepts. Automaton has 1934 states and 6910 transitions. Word has length 40 [2019-12-19 05:35:55,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:35:55,262 INFO L462 AbstractCegarLoop]: Abstraction has 1934 states and 6910 transitions. [2019-12-19 05:35:55,262 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:35:55,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1934 states and 6910 transitions. [2019-12-19 05:35:55,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-19 05:35:55,275 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:35:55,275 INFO L411 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] [2019-12-19 05:35:55,276 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:35:55,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:35:55,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1962214962, now seen corresponding path program 1 times [2019-12-19 05:35:55,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:35:55,279 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326661600] [2019-12-19 05:35:55,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:35:55,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:35:55,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:35:55,548 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326661600] [2019-12-19 05:35:55,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:35:55,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:35:55,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566738068] [2019-12-19 05:35:55,550 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:35:55,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:35:55,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:35:55,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:35:55,551 INFO L87 Difference]: Start difference. First operand 1934 states and 6910 transitions. Second operand 7 states. [2019-12-19 05:35:55,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:35:55,694 INFO L93 Difference]: Finished difference Result 1367 states and 4534 transitions. [2019-12-19 05:35:55,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:35:55,695 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2019-12-19 05:35:55,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:35:55,704 INFO L225 Difference]: With dead ends: 1367 [2019-12-19 05:35:55,705 INFO L226 Difference]: Without dead ends: 1178 [2019-12-19 05:35:55,706 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:35:55,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2019-12-19 05:35:55,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 1178. [2019-12-19 05:35:55,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1178 states. [2019-12-19 05:35:55,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 3886 transitions. [2019-12-19 05:35:55,749 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 3886 transitions. Word has length 41 [2019-12-19 05:35:55,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:35:55,752 INFO L462 AbstractCegarLoop]: Abstraction has 1178 states and 3886 transitions. [2019-12-19 05:35:55,752 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:35:55,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 3886 transitions. [2019-12-19 05:35:55,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-12-19 05:35:55,755 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:35:55,756 INFO L411 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] [2019-12-19 05:35:55,756 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:35:55,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:35:55,756 INFO L82 PathProgramCache]: Analyzing trace with hash 235705111, now seen corresponding path program 1 times [2019-12-19 05:35:55,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:35:55,757 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596540172] [2019-12-19 05:35:55,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:35:55,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:35:55,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:35:55,931 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596540172] [2019-12-19 05:35:55,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:35:55,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:35:55,932 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105129405] [2019-12-19 05:35:55,932 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:35:55,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:35:55,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:35:55,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:35:55,934 INFO L87 Difference]: Start difference. First operand 1178 states and 3886 transitions. Second operand 8 states. [2019-12-19 05:35:56,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:35:56,069 INFO L93 Difference]: Finished difference Result 1727 states and 5779 transitions. [2019-12-19 05:35:56,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:35:56,069 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2019-12-19 05:35:56,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:35:56,077 INFO L225 Difference]: With dead ends: 1727 [2019-12-19 05:35:56,077 INFO L226 Difference]: Without dead ends: 878 [2019-12-19 05:35:56,078 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 05:35:56,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2019-12-19 05:35:56,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 878. [2019-12-19 05:35:56,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states. [2019-12-19 05:35:56,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 2890 transitions. [2019-12-19 05:35:56,131 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 2890 transitions. Word has length 42 [2019-12-19 05:35:56,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:35:56,133 INFO L462 AbstractCegarLoop]: Abstraction has 878 states and 2890 transitions. [2019-12-19 05:35:56,133 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:35:56,133 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 2890 transitions. [2019-12-19 05:35:56,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-12-19 05:35:56,136 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:35:56,136 INFO L411 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] [2019-12-19 05:35:56,136 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:35:56,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:35:56,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1056006217, now seen corresponding path program 2 times [2019-12-19 05:35:56,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:35:56,137 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725056082] [2019-12-19 05:35:56,137 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:35:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:35:56,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:35:56,300 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725056082] [2019-12-19 05:35:56,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:35:56,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:35:56,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800224518] [2019-12-19 05:35:56,302 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:35:56,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:35:56,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:35:56,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:35:56,303 INFO L87 Difference]: Start difference. First operand 878 states and 2890 transitions. Second operand 8 states. [2019-12-19 05:35:56,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:35:56,465 INFO L93 Difference]: Finished difference Result 1391 states and 4672 transitions. [2019-12-19 05:35:56,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:35:56,466 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2019-12-19 05:35:56,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:35:56,472 INFO L225 Difference]: With dead ends: 1391 [2019-12-19 05:35:56,472 INFO L226 Difference]: Without dead ends: 770 [2019-12-19 05:35:56,473 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 05:35:56,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2019-12-19 05:35:56,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 770. [2019-12-19 05:35:56,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 770 states. [2019-12-19 05:35:56,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 2578 transitions. [2019-12-19 05:35:56,501 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 2578 transitions. Word has length 42 [2019-12-19 05:35:56,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:35:56,501 INFO L462 AbstractCegarLoop]: Abstraction has 770 states and 2578 transitions. [2019-12-19 05:35:56,502 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:35:56,502 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 2578 transitions. [2019-12-19 05:35:56,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-12-19 05:35:56,504 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:35:56,504 INFO L411 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] [2019-12-19 05:35:56,504 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:35:56,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:35:56,505 INFO L82 PathProgramCache]: Analyzing trace with hash -112551247, now seen corresponding path program 3 times [2019-12-19 05:35:56,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:35:56,506 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839936052] [2019-12-19 05:35:56,506 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:35:56,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:35:56,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:35:56,662 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839936052] [2019-12-19 05:35:56,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:35:56,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:35:56,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179092696] [2019-12-19 05:35:56,663 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:35:56,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:35:56,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:35:56,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:35:56,664 INFO L87 Difference]: Start difference. First operand 770 states and 2578 transitions. Second operand 8 states. [2019-12-19 05:35:56,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:35:56,816 INFO L93 Difference]: Finished difference Result 1256 states and 4279 transitions. [2019-12-19 05:35:56,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:35:56,817 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2019-12-19 05:35:56,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:35:56,823 INFO L225 Difference]: With dead ends: 1256 [2019-12-19 05:35:56,823 INFO L226 Difference]: Without dead ends: 719 [2019-12-19 05:35:56,824 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 05:35:56,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2019-12-19 05:35:56,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 719. [2019-12-19 05:35:56,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 719 states. [2019-12-19 05:35:56,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 2434 transitions. [2019-12-19 05:35:56,848 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 2434 transitions. Word has length 42 [2019-12-19 05:35:56,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:35:56,848 INFO L462 AbstractCegarLoop]: Abstraction has 719 states and 2434 transitions. [2019-12-19 05:35:56,848 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:35:56,848 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 2434 transitions. [2019-12-19 05:35:56,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-12-19 05:35:56,850 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:35:56,850 INFO L411 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] [2019-12-19 05:35:56,851 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:35:56,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:35:56,851 INFO L82 PathProgramCache]: Analyzing trace with hash -267044461, now seen corresponding path program 4 times [2019-12-19 05:35:56,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:35:56,852 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088028810] [2019-12-19 05:35:56,852 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:35:56,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:35:56,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:35:56,952 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088028810] [2019-12-19 05:35:56,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:35:56,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:35:56,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933168066] [2019-12-19 05:35:56,953 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:35:56,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:35:56,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:35:56,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:35:56,954 INFO L87 Difference]: Start difference. First operand 719 states and 2434 transitions. Second operand 7 states. [2019-12-19 05:35:57,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:35:57,048 INFO L93 Difference]: Finished difference Result 557 states and 1840 transitions. [2019-12-19 05:35:57,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:35:57,049 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 42 [2019-12-19 05:35:57,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:35:57,049 INFO L225 Difference]: With dead ends: 557 [2019-12-19 05:35:57,049 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 05:35:57,050 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:35:57,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 05:35:57,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 05:35:57,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 05:35:57,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 05:35:57,051 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2019-12-19 05:35:57,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:35:57,051 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 05:35:57,051 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:35:57,051 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 05:35:57,052 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 05:35:57,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 05:35:57 BasicIcfg [2019-12-19 05:35:57,057 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 05:35:57,060 INFO L168 Benchmark]: Toolchain (without parser) took 5514.42 ms. Allocated memory was 145.2 MB in the beginning and 313.0 MB in the end (delta: 167.8 MB). Free memory was 101.4 MB in the beginning and 156.9 MB in the end (delta: -55.5 MB). Peak memory consumption was 112.3 MB. Max. memory is 7.1 GB. [2019-12-19 05:35:57,061 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-19 05:35:57,062 INFO L168 Benchmark]: CACSL2BoogieTranslator took 745.79 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 101.2 MB in the beginning and 157.3 MB in the end (delta: -56.1 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-19 05:35:57,063 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.43 ms. Allocated memory is still 202.9 MB. Free memory was 157.3 MB in the beginning and 155.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 05:35:57,064 INFO L168 Benchmark]: Boogie Preprocessor took 27.37 ms. Allocated memory is still 202.9 MB. Free memory was 155.3 MB in the beginning and 153.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-19 05:35:57,065 INFO L168 Benchmark]: RCFGBuilder took 435.60 ms. Allocated memory is still 202.9 MB. Free memory was 153.9 MB in the beginning and 130.7 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2019-12-19 05:35:57,066 INFO L168 Benchmark]: TraceAbstraction took 4251.78 ms. Allocated memory was 202.9 MB in the beginning and 313.0 MB in the end (delta: 110.1 MB). Free memory was 130.1 MB in the beginning and 156.9 MB in the end (delta: -26.9 MB). Peak memory consumption was 83.2 MB. Max. memory is 7.1 GB. [2019-12-19 05:35:57,070 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 745.79 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 101.2 MB in the beginning and 157.3 MB in the end (delta: -56.1 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.43 ms. Allocated memory is still 202.9 MB. Free memory was 157.3 MB in the beginning and 155.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.37 ms. Allocated memory is still 202.9 MB. Free memory was 155.3 MB in the beginning and 153.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 435.60 ms. Allocated memory is still 202.9 MB. Free memory was 153.9 MB in the beginning and 130.7 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4251.78 ms. Allocated memory was 202.9 MB in the beginning and 313.0 MB in the end (delta: 110.1 MB). Free memory was 130.1 MB in the beginning and 156.9 MB in the end (delta: -26.9 MB). Peak memory consumption was 83.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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, 67 locations, 1 error locations. Result: SAFE, OverallTime: 4.1s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 470 SDtfs, 770 SDslu, 1316 SDs, 0 SdLazy, 178 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5475occurred 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: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 326 NumberOfCodeBlocks, 326 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 318 ConstructedInterpolants, 0 QuantifiedInterpolants, 40186 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...