/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/safe037_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 05:33:58,308 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 05:33:58,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 05:33:58,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 05:33:58,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 05:33:58,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 05:33:58,333 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 05:33:58,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 05:33:58,347 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 05:33:58,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 05:33:58,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 05:33:58,354 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 05:33:58,354 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 05:33:58,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 05:33:58,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 05:33:58,359 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 05:33:58,361 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 05:33:58,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 05:33:58,363 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 05:33:58,369 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 05:33:58,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 05:33:58,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 05:33:58,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 05:33:58,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 05:33:58,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-19 05:33:58,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-19 05:33:58,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-19 05:33:58,384 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-19 05:33:58,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-19 05:33:58,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-19 05:33:58,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 05:33:58,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 05:33:58,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 05:33:58,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 05:33:58,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 05:33:58,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 05:33:58,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 05:33:58,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 05:33:58,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 05:33:58,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 05:33:58,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 05:33:58,394 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 05:33:58,425 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 05:33:58,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 05:33:58,430 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 05:33:58,431 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 05:33:58,431 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 05:33:58,431 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 05:33:58,431 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 05:33:58,431 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 05:33:58,432 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 05:33:58,432 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 05:33:58,432 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 05:33:58,432 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 05:33:58,432 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 05:33:58,433 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 05:33:58,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 05:33:58,433 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 05:33:58,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 05:33:58,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 05:33:58,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 05:33:58,436 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 05:33:58,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 05:33:58,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:33:58,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 05:33:58,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 05:33:58,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 05:33:58,437 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 05:33:58,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 05:33:58,437 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 05:33:58,438 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 05:33:58,438 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 05:33:58,722 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 05:33:58,743 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 05:33:58,746 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 05:33:58,748 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 05:33:58,748 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 05:33:58,749 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_rmo.opt.i [2019-12-19 05:33:58,825 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a979b9ba/d7a8729406f84ce69f81e97ae9487bee/FLAG8db82e0be [2019-12-19 05:33:59,339 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 05:33:59,339 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_rmo.opt.i [2019-12-19 05:33:59,360 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a979b9ba/d7a8729406f84ce69f81e97ae9487bee/FLAG8db82e0be [2019-12-19 05:33:59,625 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a979b9ba/d7a8729406f84ce69f81e97ae9487bee [2019-12-19 05:33:59,635 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 05:33:59,637 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 05:33:59,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 05:33:59,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 05:33:59,645 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 05:33:59,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:33:59" (1/1) ... [2019-12-19 05:33:59,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@753fa1d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:33:59, skipping insertion in model container [2019-12-19 05:33:59,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:33:59" (1/1) ... [2019-12-19 05:33:59,657 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 05:33:59,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 05:34:00,215 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:34:00,230 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 05:34:00,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:34:00,390 INFO L208 MainTranslator]: Completed translation [2019-12-19 05:34:00,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:00 WrapperNode [2019-12-19 05:34:00,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 05:34:00,391 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 05:34:00,391 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 05:34:00,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 05:34:00,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:00" (1/1) ... [2019-12-19 05:34:00,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:00" (1/1) ... [2019-12-19 05:34:00,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 05:34:00,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 05:34:00,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 05:34:00,438 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 05:34:00,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:00" (1/1) ... [2019-12-19 05:34:00,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:00" (1/1) ... [2019-12-19 05:34:00,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:00" (1/1) ... [2019-12-19 05:34:00,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:00" (1/1) ... [2019-12-19 05:34:00,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:00" (1/1) ... [2019-12-19 05:34:00,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:00" (1/1) ... [2019-12-19 05:34:00,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:00" (1/1) ... [2019-12-19 05:34:00,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 05:34:00,465 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 05:34:00,466 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 05:34:00,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 05:34:00,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:00" (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 05:34:00,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 05:34:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 05:34:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 05:34:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 05:34:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 05:34:00,529 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 05:34:00,529 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 05:34:00,530 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 05:34:00,530 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 05:34:00,531 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 05:34:00,531 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 05:34:00,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 05:34:00,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 05:34:00,535 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 05:34:00,897 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 05:34:00,897 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 05:34:00,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:34:00 BoogieIcfgContainer [2019-12-19 05:34:00,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 05:34:00,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 05:34:00,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 05:34:00,902 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 05:34:00,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:33:59" (1/3) ... [2019-12-19 05:34:00,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@296f691e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:34:00, skipping insertion in model container [2019-12-19 05:34:00,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:34:00" (2/3) ... [2019-12-19 05:34:00,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@296f691e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:34:00, skipping insertion in model container [2019-12-19 05:34:00,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:34:00" (3/3) ... [2019-12-19 05:34:00,906 INFO L109 eAbstractionObserver]: Analyzing ICFG safe037_rmo.opt.i [2019-12-19 05:34:00,915 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 05:34:00,916 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 05:34:00,923 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 05:34:00,924 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 05:34:00,952 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:00,952 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:00,953 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:00,953 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:00,954 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:00,954 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:00,954 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:00,955 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:00,955 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:00,955 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:00,955 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:00,956 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:00,956 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:00,956 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:00,957 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:00,957 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:00,957 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:00,958 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:00,962 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:00,962 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:00,962 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:00,963 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:00,968 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:00,969 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:00,969 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:00,969 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:00,972 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:00,973 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:00,973 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:00,973 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:34:00,989 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 05:34:01,005 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:34:01,005 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:34:01,005 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:34:01,005 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:34:01,005 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:34:01,005 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:34:01,006 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:34:01,006 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:34:01,015 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 64 places, 55 transitions [2019-12-19 05:34:01,095 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1249 states. [2019-12-19 05:34:01,097 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states. [2019-12-19 05:34:01,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 05:34:01,113 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:34:01,114 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 05:34:01,115 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:34:01,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:34:01,121 INFO L82 PathProgramCache]: Analyzing trace with hash -856501925, now seen corresponding path program 1 times [2019-12-19 05:34:01,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:34:01,131 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915919530] [2019-12-19 05:34:01,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:34:01,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:34:01,495 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 05:34:01,495 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915919530] [2019-12-19 05:34:01,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:34:01,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 05:34:01,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717703675] [2019-12-19 05:34:01,503 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 05:34:01,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:34:01,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 05:34:01,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 05:34:01,519 INFO L87 Difference]: Start difference. First operand 1249 states. Second operand 4 states. [2019-12-19 05:34:01,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:34:01,635 INFO L93 Difference]: Finished difference Result 1296 states and 3962 transitions. [2019-12-19 05:34:01,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 05:34:01,675 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-12-19 05:34:01,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:34:01,714 INFO L225 Difference]: With dead ends: 1296 [2019-12-19 05:34:01,714 INFO L226 Difference]: Without dead ends: 602 [2019-12-19 05:34:01,718 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 05:34:01,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-12-19 05:34:01,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2019-12-19 05:34:01,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2019-12-19 05:34:01,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 1777 transitions. [2019-12-19 05:34:01,830 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 1777 transitions. Word has length 32 [2019-12-19 05:34:01,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:34:01,831 INFO L462 AbstractCegarLoop]: Abstraction has 602 states and 1777 transitions. [2019-12-19 05:34:01,831 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 05:34:01,831 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 1777 transitions. [2019-12-19 05:34:01,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 05:34:01,834 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:34:01,835 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 05:34:01,835 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:34:01,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:34:01,836 INFO L82 PathProgramCache]: Analyzing trace with hash 709357799, now seen corresponding path program 1 times [2019-12-19 05:34:01,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:34:01,836 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447521374] [2019-12-19 05:34:01,836 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:34:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:34:02,024 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 05:34:02,025 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447521374] [2019-12-19 05:34:02,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:34:02,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 05:34:02,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283798875] [2019-12-19 05:34:02,027 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 05:34:02,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:34:02,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 05:34:02,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:34:02,028 INFO L87 Difference]: Start difference. First operand 602 states and 1777 transitions. Second operand 5 states. [2019-12-19 05:34:02,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:34:02,102 INFO L93 Difference]: Finished difference Result 602 states and 1696 transitions. [2019-12-19 05:34:02,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 05:34:02,103 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-12-19 05:34:02,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:34:02,108 INFO L225 Difference]: With dead ends: 602 [2019-12-19 05:34:02,108 INFO L226 Difference]: Without dead ends: 539 [2019-12-19 05:34:02,110 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 05:34:02,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2019-12-19 05:34:02,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2019-12-19 05:34:02,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2019-12-19 05:34:02,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 1546 transitions. [2019-12-19 05:34:02,139 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 1546 transitions. Word has length 33 [2019-12-19 05:34:02,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:34:02,139 INFO L462 AbstractCegarLoop]: Abstraction has 539 states and 1546 transitions. [2019-12-19 05:34:02,139 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 05:34:02,139 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 1546 transitions. [2019-12-19 05:34:02,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:34:02,142 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:34:02,142 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 05:34:02,142 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:34:02,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:34:02,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1444603190, now seen corresponding path program 1 times [2019-12-19 05:34:02,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:34:02,143 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992230174] [2019-12-19 05:34:02,143 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:34:02,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:34:02,292 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 05:34:02,293 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992230174] [2019-12-19 05:34:02,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:34:02,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:34:02,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711045522] [2019-12-19 05:34:02,294 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:34:02,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:34:02,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:34:02,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:34:02,297 INFO L87 Difference]: Start difference. First operand 539 states and 1546 transitions. Second operand 6 states. [2019-12-19 05:34:02,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:34:02,392 INFO L93 Difference]: Finished difference Result 404 states and 1060 transitions. [2019-12-19 05:34:02,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:34:02,393 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-12-19 05:34:02,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:34:02,396 INFO L225 Difference]: With dead ends: 404 [2019-12-19 05:34:02,396 INFO L226 Difference]: Without dead ends: 350 [2019-12-19 05:34:02,397 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 05:34:02,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2019-12-19 05:34:02,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2019-12-19 05:34:02,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2019-12-19 05:34:02,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 916 transitions. [2019-12-19 05:34:02,410 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 916 transitions. Word has length 34 [2019-12-19 05:34:02,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:34:02,410 INFO L462 AbstractCegarLoop]: Abstraction has 350 states and 916 transitions. [2019-12-19 05:34:02,410 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:34:02,411 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 916 transitions. [2019-12-19 05:34:02,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 05:34:02,414 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:34:02,415 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] [2019-12-19 05:34:02,415 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:34:02,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:34:02,415 INFO L82 PathProgramCache]: Analyzing trace with hash 318820434, now seen corresponding path program 1 times [2019-12-19 05:34:02,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:34:02,416 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213814422] [2019-12-19 05:34:02,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:34:02,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:34:02,607 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 05:34:02,607 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213814422] [2019-12-19 05:34:02,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:34:02,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:34:02,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346973068] [2019-12-19 05:34:02,609 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:34:02,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:34:02,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:34:02,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:34:02,610 INFO L87 Difference]: Start difference. First operand 350 states and 916 transitions. Second operand 7 states. [2019-12-19 05:34:02,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:34:02,767 INFO L93 Difference]: Finished difference Result 521 states and 1396 transitions. [2019-12-19 05:34:02,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:34:02,768 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-12-19 05:34:02,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:34:02,772 INFO L225 Difference]: With dead ends: 521 [2019-12-19 05:34:02,772 INFO L226 Difference]: Without dead ends: 314 [2019-12-19 05:34:02,773 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:34:02,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2019-12-19 05:34:02,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 305. [2019-12-19 05:34:02,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2019-12-19 05:34:02,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 781 transitions. [2019-12-19 05:34:02,788 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 781 transitions. Word has length 35 [2019-12-19 05:34:02,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:34:02,789 INFO L462 AbstractCegarLoop]: Abstraction has 305 states and 781 transitions. [2019-12-19 05:34:02,789 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:34:02,790 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 781 transitions. [2019-12-19 05:34:02,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 05:34:02,791 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:34:02,792 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] [2019-12-19 05:34:02,792 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:34:02,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:34:02,793 INFO L82 PathProgramCache]: Analyzing trace with hash 944612746, now seen corresponding path program 2 times [2019-12-19 05:34:02,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:34:02,793 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334942699] [2019-12-19 05:34:02,793 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:34:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:34:02,977 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 05:34:02,978 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334942699] [2019-12-19 05:34:02,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:34:02,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:34:02,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175321250] [2019-12-19 05:34:02,980 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:34:02,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:34:02,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:34:02,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:34:02,982 INFO L87 Difference]: Start difference. First operand 305 states and 781 transitions. Second operand 7 states. [2019-12-19 05:34:03,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:34:03,151 INFO L93 Difference]: Finished difference Result 476 states and 1261 transitions. [2019-12-19 05:34:03,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:34:03,152 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-12-19 05:34:03,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:34:03,154 INFO L225 Difference]: With dead ends: 476 [2019-12-19 05:34:03,155 INFO L226 Difference]: Without dead ends: 278 [2019-12-19 05:34:03,155 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:34:03,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-12-19 05:34:03,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 269. [2019-12-19 05:34:03,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2019-12-19 05:34:03,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 703 transitions. [2019-12-19 05:34:03,165 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 703 transitions. Word has length 35 [2019-12-19 05:34:03,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:34:03,166 INFO L462 AbstractCegarLoop]: Abstraction has 269 states and 703 transitions. [2019-12-19 05:34:03,166 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:34:03,166 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 703 transitions. [2019-12-19 05:34:03,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 05:34:03,167 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:34:03,167 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] [2019-12-19 05:34:03,168 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:34:03,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:34:03,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1320097416, now seen corresponding path program 3 times [2019-12-19 05:34:03,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:34:03,169 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049964161] [2019-12-19 05:34:03,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:34:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:34:03,271 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 05:34:03,272 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049964161] [2019-12-19 05:34:03,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:34:03,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:34:03,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515254338] [2019-12-19 05:34:03,273 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:34:03,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:34:03,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:34:03,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:34:03,274 INFO L87 Difference]: Start difference. First operand 269 states and 703 transitions. Second operand 7 states. [2019-12-19 05:34:03,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:34:03,397 INFO L93 Difference]: Finished difference Result 215 states and 541 transitions. [2019-12-19 05:34:03,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:34:03,397 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2019-12-19 05:34:03,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:34:03,398 INFO L225 Difference]: With dead ends: 215 [2019-12-19 05:34:03,398 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 05:34:03,398 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:34:03,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 05:34:03,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 05:34:03,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 05:34:03,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 05:34:03,399 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2019-12-19 05:34:03,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:34:03,400 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 05:34:03,400 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:34:03,400 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 05:34:03,400 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 05:34:03,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 05:34:03 BasicIcfg [2019-12-19 05:34:03,408 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 05:34:03,411 INFO L168 Benchmark]: Toolchain (without parser) took 3773.31 ms. Allocated memory was 145.2 MB in the beginning and 251.1 MB in the end (delta: 105.9 MB). Free memory was 101.6 MB in the beginning and 161.4 MB in the end (delta: -59.8 MB). Peak memory consumption was 46.1 MB. Max. memory is 7.1 GB. [2019-12-19 05:34:03,412 INFO L168 Benchmark]: CDTParser took 1.63 ms. Allocated memory is still 145.2 MB. Free memory is still 121.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-19 05:34:03,413 INFO L168 Benchmark]: CACSL2BoogieTranslator took 750.08 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 101.1 MB in the beginning and 160.4 MB in the end (delta: -59.3 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2019-12-19 05:34:03,414 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.47 ms. Allocated memory is still 202.9 MB. Free memory was 160.4 MB in the beginning and 158.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 05:34:03,414 INFO L168 Benchmark]: Boogie Preprocessor took 27.13 ms. Allocated memory is still 202.9 MB. Free memory was 158.4 MB in the beginning and 156.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-19 05:34:03,415 INFO L168 Benchmark]: RCFGBuilder took 433.40 ms. Allocated memory is still 202.9 MB. Free memory was 156.5 MB in the beginning and 136.8 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. [2019-12-19 05:34:03,416 INFO L168 Benchmark]: TraceAbstraction took 2508.03 ms. Allocated memory was 202.9 MB in the beginning and 251.1 MB in the end (delta: 48.2 MB). Free memory was 135.8 MB in the beginning and 161.4 MB in the end (delta: -25.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2019-12-19 05:34:03,420 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.63 ms. Allocated memory is still 145.2 MB. Free memory is still 121.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 750.08 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 101.1 MB in the beginning and 160.4 MB in the end (delta: -59.3 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.47 ms. Allocated memory is still 202.9 MB. Free memory was 160.4 MB in the beginning and 158.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.13 ms. Allocated memory is still 202.9 MB. Free memory was 158.4 MB in the beginning and 156.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 433.40 ms. Allocated memory is still 202.9 MB. Free memory was 156.5 MB in the beginning and 136.8 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2508.03 ms. Allocated memory was 202.9 MB in the beginning and 251.1 MB in the end (delta: 48.2 MB). Free memory was 135.8 MB in the beginning and 161.4 MB in the end (delta: -25.6 MB). Peak memory consumption was 22.7 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, 55 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 327 SDtfs, 348 SDslu, 905 SDs, 0 SdLazy, 119 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1249occurred 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, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 204 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 18586 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...