/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/safe002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 04:16:38,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 04:16:38,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 04:16:38,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 04:16:38,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 04:16:38,323 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 04:16:38,324 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 04:16:38,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 04:16:38,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 04:16:38,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 04:16:38,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 04:16:38,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 04:16:38,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 04:16:38,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 04:16:38,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 04:16:38,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 04:16:38,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 04:16:38,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 04:16:38,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 04:16:38,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 04:16:38,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 04:16:38,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 04:16:38,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 04:16:38,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 04:16:38,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 04:16:38,353 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 04:16:38,354 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 04:16:38,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 04:16:38,356 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 04:16:38,357 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 04:16:38,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 04:16:38,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 04:16:38,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 04:16:38,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 04:16:38,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 04:16:38,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 04:16:38,361 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 04:16:38,376 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 04:16:38,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 04:16:38,378 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 04:16:38,378 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 04:16:38,378 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 04:16:38,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 04:16:38,379 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 04:16:38,379 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 04:16:38,379 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 04:16:38,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 04:16:38,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 04:16:38,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 04:16:38,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 04:16:38,383 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 04:16:38,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 04:16:38,384 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 04:16:38,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 04:16:38,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 04:16:38,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 04:16:38,385 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 04:16:38,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 04:16:38,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:16:38,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 04:16:38,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 04:16:38,388 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 04:16:38,388 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 04:16:38,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 04:16:38,388 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 04:16:38,388 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 04:16:38,389 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 04:16:38,683 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 04:16:38,696 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 04:16:38,705 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 04:16:38,706 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 04:16:38,707 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 04:16:38,707 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.oepc.i [2019-12-19 04:16:38,771 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fd0e51f0/10f9a57508034a35ba284604de703ebe/FLAG4d1347ec1 [2019-12-19 04:16:39,366 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 04:16:39,367 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe002_tso.oepc.i [2019-12-19 04:16:39,381 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fd0e51f0/10f9a57508034a35ba284604de703ebe/FLAG4d1347ec1 [2019-12-19 04:16:39,563 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fd0e51f0/10f9a57508034a35ba284604de703ebe [2019-12-19 04:16:39,573 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 04:16:39,576 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 04:16:39,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 04:16:39,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 04:16:39,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 04:16:39,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:16:39" (1/1) ... [2019-12-19 04:16:39,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b9bda4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:16:39, skipping insertion in model container [2019-12-19 04:16:39,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:16:39" (1/1) ... [2019-12-19 04:16:39,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 04:16:39,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 04:16:40,094 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:16:40,106 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 04:16:40,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:16:40,266 INFO L208 MainTranslator]: Completed translation [2019-12-19 04:16:40,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:16:40 WrapperNode [2019-12-19 04:16:40,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 04:16:40,267 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 04:16:40,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 04:16:40,268 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 04:16:40,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:16:40" (1/1) ... [2019-12-19 04:16:40,303 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:16:40" (1/1) ... [2019-12-19 04:16:40,323 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 04:16:40,324 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 04:16:40,324 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 04:16:40,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 04:16:40,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:16:40" (1/1) ... [2019-12-19 04:16:40,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:16:40" (1/1) ... [2019-12-19 04:16:40,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:16:40" (1/1) ... [2019-12-19 04:16:40,338 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:16:40" (1/1) ... [2019-12-19 04:16:40,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:16:40" (1/1) ... [2019-12-19 04:16:40,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:16:40" (1/1) ... [2019-12-19 04:16:40,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:16:40" (1/1) ... [2019-12-19 04:16:40,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 04:16:40,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 04:16:40,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 04:16:40,361 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 04:16:40,362 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:16:40" (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 04:16:40,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 04:16:40,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 04:16:40,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 04:16:40,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 04:16:40,432 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 04:16:40,432 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 04:16:40,433 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 04:16:40,433 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 04:16:40,433 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 04:16:40,433 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 04:16:40,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 04:16:40,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 04:16:40,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 04:16:40,435 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 04:16:40,792 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 04:16:40,792 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 04:16:40,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:16:40 BoogieIcfgContainer [2019-12-19 04:16:40,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 04:16:40,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 04:16:40,795 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 04:16:40,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 04:16:40,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:16:39" (1/3) ... [2019-12-19 04:16:40,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a8a6fda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:16:40, skipping insertion in model container [2019-12-19 04:16:40,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:16:40" (2/3) ... [2019-12-19 04:16:40,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a8a6fda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:16:40, skipping insertion in model container [2019-12-19 04:16:40,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:16:40" (3/3) ... [2019-12-19 04:16:40,802 INFO L109 eAbstractionObserver]: Analyzing ICFG safe002_tso.oepc.i [2019-12-19 04:16:40,813 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 04:16:40,814 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 04:16:40,822 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 04:16:40,823 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 04:16:40,852 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:16:40,852 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:16:40,853 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:16:40,853 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:16:40,854 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:16:40,854 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:16:40,854 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:16:40,855 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:16:40,855 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:16:40,855 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:16:40,855 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:16:40,856 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:16:40,856 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:16:40,856 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:16:40,857 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:16:40,857 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:16:40,857 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:16:40,857 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:16:40,862 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:16:40,862 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:16:40,862 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:16:40,863 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:16:40,872 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:16:40,873 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:16:40,874 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:16:40,874 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:16:40,877 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:16:40,878 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:16:40,878 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:16:40,878 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:16:40,897 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 04:16:40,919 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 04:16:40,919 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 04:16:40,919 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 04:16:40,919 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 04:16:40,919 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 04:16:40,920 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 04:16:40,920 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 04:16:40,920 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 04:16:40,935 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-19 04:16:41,035 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-19 04:16:41,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-19 04:16:41,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 04:16:41,067 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:16:41,068 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] [2019-12-19 04:16:41,069 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:16:41,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:16:41,078 INFO L82 PathProgramCache]: Analyzing trace with hash -83504505, now seen corresponding path program 1 times [2019-12-19 04:16:41,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:16:41,088 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972260836] [2019-12-19 04:16:41,089 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:16:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:16:41,510 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 04:16:41,511 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972260836] [2019-12-19 04:16:41,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:16:41,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 04:16:41,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684180970] [2019-12-19 04:16:41,521 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 04:16:41,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:16:41,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 04:16:41,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 04:16:41,542 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-19 04:16:41,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:16:41,711 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-19 04:16:41,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 04:16:41,713 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-19 04:16:41,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:16:41,738 INFO L225 Difference]: With dead ends: 1295 [2019-12-19 04:16:41,738 INFO L226 Difference]: Without dead ends: 601 [2019-12-19 04:16:41,740 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:16:41,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-19 04:16:41,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-19 04:16:41,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-19 04:16:41,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-19 04:16:41,846 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-19 04:16:41,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:16:41,847 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-19 04:16:41,847 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 04:16:41,847 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-19 04:16:41,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 04:16:41,850 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:16:41,850 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] [2019-12-19 04:16:41,851 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:16:41,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:16:41,851 INFO L82 PathProgramCache]: Analyzing trace with hash 288299186, now seen corresponding path program 1 times [2019-12-19 04:16:41,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:16:41,852 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810784253] [2019-12-19 04:16:41,852 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:16:41,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:16:42,065 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 04:16:42,067 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810784253] [2019-12-19 04:16:42,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:16:42,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 04:16:42,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879503224] [2019-12-19 04:16:42,069 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 04:16:42,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:16:42,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 04:16:42,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:16:42,071 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-19 04:16:42,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:16:42,169 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-19 04:16:42,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:16:42,173 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-19 04:16:42,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:16:42,183 INFO L225 Difference]: With dead ends: 601 [2019-12-19 04:16:42,186 INFO L226 Difference]: Without dead ends: 538 [2019-12-19 04:16:42,187 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 04:16:42,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-19 04:16:42,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-19 04:16:42,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-19 04:16:42,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-19 04:16:42,247 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-19 04:16:42,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:16:42,247 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-19 04:16:42,248 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 04:16:42,248 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-19 04:16:42,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:16:42,250 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:16:42,250 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] [2019-12-19 04:16:42,250 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:16:42,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:16:42,251 INFO L82 PathProgramCache]: Analyzing trace with hash -2025800424, now seen corresponding path program 1 times [2019-12-19 04:16:42,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:16:42,251 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311733544] [2019-12-19 04:16:42,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:16:42,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:16:42,420 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 04:16:42,420 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311733544] [2019-12-19 04:16:42,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:16:42,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:16:42,421 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652609958] [2019-12-19 04:16:42,422 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:16:42,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:16:42,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:16:42,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:16:42,423 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-19 04:16:42,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:16:42,516 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-19 04:16:42,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:16:42,517 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-19 04:16:42,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:16:42,520 INFO L225 Difference]: With dead ends: 403 [2019-12-19 04:16:42,520 INFO L226 Difference]: Without dead ends: 349 [2019-12-19 04:16:42,521 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 04:16:42,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-19 04:16:42,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-19 04:16:42,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-19 04:16:42,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-19 04:16:42,537 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-19 04:16:42,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:16:42,537 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-19 04:16:42,538 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:16:42,538 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-19 04:16:42,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 04:16:42,542 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:16:42,542 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] [2019-12-19 04:16:42,543 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:16:42,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:16:42,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1679595576, now seen corresponding path program 1 times [2019-12-19 04:16:42,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:16:42,544 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614761647] [2019-12-19 04:16:42,544 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:16:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:16:42,727 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 04:16:42,728 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614761647] [2019-12-19 04:16:42,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:16:42,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:16:42,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387389726] [2019-12-19 04:16:42,729 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:16:42,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:16:42,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:16:42,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:16:42,730 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-12-19 04:16:42,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:16:42,973 INFO L93 Difference]: Finished difference Result 520 states and 1395 transitions. [2019-12-19 04:16:42,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 04:16:42,974 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-19 04:16:42,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:16:42,977 INFO L225 Difference]: With dead ends: 520 [2019-12-19 04:16:42,977 INFO L226 Difference]: Without dead ends: 328 [2019-12-19 04:16:42,979 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 04:16:42,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2019-12-19 04:16:42,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2019-12-19 04:16:42,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2019-12-19 04:16:42,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 858 transitions. [2019-12-19 04:16:42,994 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 858 transitions. Word has length 34 [2019-12-19 04:16:42,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:16:42,995 INFO L462 AbstractCegarLoop]: Abstraction has 328 states and 858 transitions. [2019-12-19 04:16:42,996 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:16:42,996 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 858 transitions. [2019-12-19 04:16:42,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 04:16:42,997 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:16:42,997 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] [2019-12-19 04:16:42,998 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:16:42,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:16:42,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1506347884, now seen corresponding path program 2 times [2019-12-19 04:16:42,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:16:42,999 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637541329] [2019-12-19 04:16:42,999 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:16:43,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:16:43,204 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 04:16:43,205 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637541329] [2019-12-19 04:16:43,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:16:43,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:16:43,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359727101] [2019-12-19 04:16:43,206 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:16:43,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:16:43,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:16:43,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:16:43,207 INFO L87 Difference]: Start difference. First operand 328 states and 858 transitions. Second operand 8 states. [2019-12-19 04:16:43,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:16:43,364 INFO L93 Difference]: Finished difference Result 535 states and 1422 transitions. [2019-12-19 04:16:43,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-19 04:16:43,365 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 04:16:43,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:16:43,368 INFO L225 Difference]: With dead ends: 535 [2019-12-19 04:16:43,368 INFO L226 Difference]: Without dead ends: 313 [2019-12-19 04:16:43,369 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2019-12-19 04:16:43,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2019-12-19 04:16:43,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2019-12-19 04:16:43,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2019-12-19 04:16:43,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 816 transitions. [2019-12-19 04:16:43,379 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 816 transitions. Word has length 34 [2019-12-19 04:16:43,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:16:43,380 INFO L462 AbstractCegarLoop]: Abstraction has 313 states and 816 transitions. [2019-12-19 04:16:43,380 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:16:43,380 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 816 transitions. [2019-12-19 04:16:43,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 04:16:43,381 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:16:43,381 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] [2019-12-19 04:16:43,382 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:16:43,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:16:43,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1476702554, now seen corresponding path program 3 times [2019-12-19 04:16:43,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:16:43,383 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928062590] [2019-12-19 04:16:43,383 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:16:43,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:16:43,497 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 04:16:43,498 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928062590] [2019-12-19 04:16:43,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:16:43,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:16:43,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942862768] [2019-12-19 04:16:43,499 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:16:43,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:16:43,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:16:43,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:16:43,500 INFO L87 Difference]: Start difference. First operand 313 states and 816 transitions. Second operand 7 states. [2019-12-19 04:16:43,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:16:43,595 INFO L93 Difference]: Finished difference Result 259 states and 654 transitions. [2019-12-19 04:16:43,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:16:43,595 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-19 04:16:43,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:16:43,596 INFO L225 Difference]: With dead ends: 259 [2019-12-19 04:16:43,596 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 04:16:43,597 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 04:16:43,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 04:16:43,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 04:16:43,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 04:16:43,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 04:16:43,598 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-19 04:16:43,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:16:43,598 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 04:16:43,598 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:16:43,598 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 04:16:43,599 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 04:16:43,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:16:43 BasicIcfg [2019-12-19 04:16:43,609 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 04:16:43,614 INFO L168 Benchmark]: Toolchain (without parser) took 4035.93 ms. Allocated memory was 146.3 MB in the beginning and 246.9 MB in the end (delta: 100.7 MB). Free memory was 102.8 MB in the beginning and 147.5 MB in the end (delta: -44.7 MB). Peak memory consumption was 55.9 MB. Max. memory is 7.1 GB. [2019-12-19 04:16:43,615 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-12-19 04:16:43,622 INFO L168 Benchmark]: CACSL2BoogieTranslator took 690.10 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 102.6 MB in the beginning and 161.3 MB in the end (delta: -58.7 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2019-12-19 04:16:43,623 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.15 ms. Allocated memory is still 204.5 MB. Free memory was 161.3 MB in the beginning and 159.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-19 04:16:43,624 INFO L168 Benchmark]: Boogie Preprocessor took 31.43 ms. Allocated memory is still 204.5 MB. Free memory was 159.3 MB in the beginning and 158.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-19 04:16:43,625 INFO L168 Benchmark]: RCFGBuilder took 433.12 ms. Allocated memory is still 204.5 MB. Free memory was 158.0 MB in the beginning and 137.6 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-12-19 04:16:43,626 INFO L168 Benchmark]: TraceAbstraction took 2814.05 ms. Allocated memory was 204.5 MB in the beginning and 246.9 MB in the end (delta: 42.5 MB). Free memory was 136.9 MB in the beginning and 147.5 MB in the end (delta: -10.5 MB). Peak memory consumption was 31.9 MB. Max. memory is 7.1 GB. [2019-12-19 04:16:43,641 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 690.10 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 102.6 MB in the beginning and 161.3 MB in the end (delta: -58.7 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 56.15 ms. Allocated memory is still 204.5 MB. Free memory was 161.3 MB in the beginning and 159.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.43 ms. Allocated memory is still 204.5 MB. Free memory was 159.3 MB in the beginning and 158.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 433.12 ms. Allocated memory is still 204.5 MB. Free memory was 158.0 MB in the beginning and 137.6 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2814.05 ms. Allocated memory was 204.5 MB in the beginning and 246.9 MB in the end (delta: 42.5 MB). Free memory was 136.9 MB in the beginning and 147.5 MB in the end (delta: -10.5 MB). Peak memory consumption was 31.9 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 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 299 SDtfs, 411 SDslu, 821 SDs, 0 SdLazy, 129 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred 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: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 18438 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...