/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/safe028_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 05:18:37,301 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 05:18:37,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 05:18:37,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 05:18:37,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 05:18:37,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 05:18:37,318 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 05:18:37,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 05:18:37,322 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 05:18:37,323 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 05:18:37,324 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 05:18:37,325 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 05:18:37,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 05:18:37,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 05:18:37,328 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 05:18:37,329 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 05:18:37,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 05:18:37,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 05:18:37,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 05:18:37,335 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 05:18:37,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 05:18:37,338 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 05:18:37,339 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 05:18:37,340 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 05:18:37,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 05:18:37,346 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 05:18:37,347 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 05:18:37,348 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 05:18:37,348 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 05:18:37,350 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 05:18:37,350 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 05:18:37,350 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 05:18:37,351 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 05:18:37,351 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 05:18:37,352 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 05:18:37,353 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 05:18:37,353 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 05:18:37,368 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 05:18:37,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 05:18:37,370 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 05:18:37,370 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 05:18:37,370 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 05:18:37,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 05:18:37,371 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 05:18:37,371 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 05:18:37,371 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 05:18:37,372 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 05:18:37,372 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 05:18:37,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 05:18:37,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 05:18:37,372 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 05:18:37,373 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 05:18:37,373 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 05:18:37,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 05:18:37,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 05:18:37,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 05:18:37,374 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 05:18:37,374 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 05:18:37,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:18:37,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 05:18:37,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 05:18:37,375 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 05:18:37,375 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 05:18:37,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 05:18:37,375 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 05:18:37,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 05:18:37,376 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 05:18:37,656 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 05:18:37,675 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 05:18:37,679 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 05:18:37,680 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 05:18:37,681 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 05:18:37,682 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_tso.opt.i [2019-12-19 05:18:37,759 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee589ad3a/0ea4d28ccfc54cccab204095369b86fd/FLAG9f4f0bd56 [2019-12-19 05:18:38,341 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 05:18:38,343 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_tso.opt.i [2019-12-19 05:18:38,366 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee589ad3a/0ea4d28ccfc54cccab204095369b86fd/FLAG9f4f0bd56 [2019-12-19 05:18:38,585 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee589ad3a/0ea4d28ccfc54cccab204095369b86fd [2019-12-19 05:18:38,595 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 05:18:38,597 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 05:18:38,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 05:18:38,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 05:18:38,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 05:18:38,604 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:18:38" (1/1) ... [2019-12-19 05:18:38,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b2d3d59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:18:38, skipping insertion in model container [2019-12-19 05:18:38,607 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:18:38" (1/1) ... [2019-12-19 05:18:38,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 05:18:38,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 05:18:39,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:18:39,233 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 05:18:39,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:18:39,392 INFO L208 MainTranslator]: Completed translation [2019-12-19 05:18:39,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:18:39 WrapperNode [2019-12-19 05:18:39,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 05:18:39,393 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 05:18:39,394 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 05:18:39,394 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 05:18:39,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:18:39" (1/1) ... [2019-12-19 05:18:39,423 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:18:39" (1/1) ... [2019-12-19 05:18:39,446 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 05:18:39,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 05:18:39,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 05:18:39,447 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 05:18:39,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:18:39" (1/1) ... [2019-12-19 05:18:39,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:18:39" (1/1) ... [2019-12-19 05:18:39,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:18:39" (1/1) ... [2019-12-19 05:18:39,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:18:39" (1/1) ... [2019-12-19 05:18:39,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:18:39" (1/1) ... [2019-12-19 05:18:39,469 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:18:39" (1/1) ... [2019-12-19 05:18:39,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:18:39" (1/1) ... [2019-12-19 05:18:39,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 05:18:39,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 05:18:39,475 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 05:18:39,475 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 05:18:39,476 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:18:39" (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 05:18:39,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 05:18:39,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 05:18:39,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 05:18:39,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 05:18:39,545 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 05:18:39,546 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 05:18:39,546 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 05:18:39,546 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 05:18:39,546 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 05:18:39,546 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 05:18:39,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 05:18:39,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 05:18:39,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 05:18:39,548 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 05:18:39,986 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 05:18:39,987 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 05:18:39,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:18:39 BoogieIcfgContainer [2019-12-19 05:18:39,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 05:18:39,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 05:18:39,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 05:18:39,993 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 05:18:39,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:18:38" (1/3) ... [2019-12-19 05:18:39,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bd37f88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:18:39, skipping insertion in model container [2019-12-19 05:18:39,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:18:39" (2/3) ... [2019-12-19 05:18:39,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bd37f88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:18:39, skipping insertion in model container [2019-12-19 05:18:39,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:18:39" (3/3) ... [2019-12-19 05:18:39,997 INFO L109 eAbstractionObserver]: Analyzing ICFG safe028_tso.opt.i [2019-12-19 05:18:40,005 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 05:18:40,006 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 05:18:40,013 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 05:18:40,014 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 05:18:40,043 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:40,043 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:40,044 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:40,044 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:40,045 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:40,045 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:40,045 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:40,045 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:40,046 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:40,046 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:40,046 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:40,047 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:40,047 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:40,047 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:40,047 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:40,047 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:40,048 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:40,048 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:40,051 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:40,052 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:40,052 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:40,052 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:40,057 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:40,058 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:40,058 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:40,059 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:40,061 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:40,062 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:40,062 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:40,062 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:18:40,074 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 05:18:40,091 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:18:40,091 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:18:40,092 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:18:40,092 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:18:40,092 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:18:40,092 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:18:40,092 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:18:40,092 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:18:40,102 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-19 05:18:40,193 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-19 05:18:40,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-19 05:18:40,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 05:18:40,225 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:18:40,227 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 05:18:40,229 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:18:40,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:18:40,237 INFO L82 PathProgramCache]: Analyzing trace with hash -193367577, now seen corresponding path program 1 times [2019-12-19 05:18:40,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:18:40,245 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098556205] [2019-12-19 05:18:40,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:18:40,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:18:40,646 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 05:18:40,647 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098556205] [2019-12-19 05:18:40,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:18:40,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 05:18:40,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449879744] [2019-12-19 05:18:40,656 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 05:18:40,656 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:18:40,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 05:18:40,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 05:18:40,673 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-19 05:18:40,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:18:40,803 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-19 05:18:40,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 05:18:40,805 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-19 05:18:40,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:18:40,830 INFO L225 Difference]: With dead ends: 1295 [2019-12-19 05:18:40,830 INFO L226 Difference]: Without dead ends: 601 [2019-12-19 05:18:40,832 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 05:18:40,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-19 05:18:40,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-19 05:18:40,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-19 05:18:40,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-19 05:18:40,935 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-19 05:18:40,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:18:40,936 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-19 05:18:40,936 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 05:18:40,936 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-19 05:18:40,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 05:18:40,941 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:18:40,941 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 05:18:40,942 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:18:40,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:18:40,943 INFO L82 PathProgramCache]: Analyzing trace with hash 697710444, now seen corresponding path program 1 times [2019-12-19 05:18:40,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:18:40,943 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491821700] [2019-12-19 05:18:40,943 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:18:40,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:18:41,085 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 05:18:41,086 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491821700] [2019-12-19 05:18:41,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:18:41,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 05:18:41,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147316258] [2019-12-19 05:18:41,088 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 05:18:41,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:18:41,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 05:18:41,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:18:41,089 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-19 05:18:41,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:18:41,169 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-19 05:18:41,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 05:18:41,169 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-19 05:18:41,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:18:41,175 INFO L225 Difference]: With dead ends: 601 [2019-12-19 05:18:41,175 INFO L226 Difference]: Without dead ends: 538 [2019-12-19 05:18:41,176 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 05:18:41,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-19 05:18:41,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-19 05:18:41,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-19 05:18:41,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-19 05:18:41,204 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-19 05:18:41,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:18:41,205 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-19 05:18:41,205 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 05:18:41,205 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-19 05:18:41,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 05:18:41,207 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:18:41,207 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 05:18:41,208 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:18:41,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:18:41,208 INFO L82 PathProgramCache]: Analyzing trace with hash -2130890134, now seen corresponding path program 1 times [2019-12-19 05:18:41,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:18:41,209 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346195967] [2019-12-19 05:18:41,209 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:18:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:18:41,376 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 05:18:41,376 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346195967] [2019-12-19 05:18:41,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:18:41,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:18:41,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382123940] [2019-12-19 05:18:41,378 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:18:41,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:18:41,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:18:41,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:18:41,379 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-19 05:18:41,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:18:41,478 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-19 05:18:41,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:18:41,479 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-19 05:18:41,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:18:41,482 INFO L225 Difference]: With dead ends: 403 [2019-12-19 05:18:41,482 INFO L226 Difference]: Without dead ends: 349 [2019-12-19 05:18:41,483 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 05:18:41,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-19 05:18:41,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-19 05:18:41,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-19 05:18:41,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-19 05:18:41,495 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-19 05:18:41,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:18:41,496 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-19 05:18:41,496 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:18:41,496 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-19 05:18:41,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:18:41,498 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:18:41,498 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 05:18:41,499 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:18:41,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:18:41,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1468969640, now seen corresponding path program 1 times [2019-12-19 05:18:41,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:18:41,500 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798564143] [2019-12-19 05:18:41,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:18:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:18:41,682 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 05:18:41,683 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798564143] [2019-12-19 05:18:41,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:18:41,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:18:41,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124665795] [2019-12-19 05:18:41,684 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:18:41,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:18:41,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:18:41,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:18:41,686 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-12-19 05:18:41,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:18:41,861 INFO L93 Difference]: Finished difference Result 520 states and 1395 transitions. [2019-12-19 05:18:41,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:18:41,862 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-19 05:18:41,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:18:41,867 INFO L225 Difference]: With dead ends: 520 [2019-12-19 05:18:41,867 INFO L226 Difference]: Without dead ends: 277 [2019-12-19 05:18:41,869 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 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 05:18:41,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2019-12-19 05:18:41,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2019-12-19 05:18:41,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2019-12-19 05:18:41,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 726 transitions. [2019-12-19 05:18:41,887 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 726 transitions. Word has length 34 [2019-12-19 05:18:41,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:18:41,888 INFO L462 AbstractCegarLoop]: Abstraction has 277 states and 726 transitions. [2019-12-19 05:18:41,888 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:18:41,888 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 726 transitions. [2019-12-19 05:18:41,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:18:41,890 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:18:41,890 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 05:18:41,890 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:18:41,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:18:41,891 INFO L82 PathProgramCache]: Analyzing trace with hash -900597390, now seen corresponding path program 2 times [2019-12-19 05:18:41,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:18:41,891 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730702426] [2019-12-19 05:18:41,892 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:18:41,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:18:42,155 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 05:18:42,155 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730702426] [2019-12-19 05:18:42,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:18:42,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:18:42,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120018166] [2019-12-19 05:18:42,157 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:18:42,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:18:42,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:18:42,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:18:42,159 INFO L87 Difference]: Start difference. First operand 277 states and 726 transitions. Second operand 7 states. [2019-12-19 05:18:42,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:18:42,343 INFO L93 Difference]: Finished difference Result 439 states and 1185 transitions. [2019-12-19 05:18:42,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:18:42,344 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-19 05:18:42,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:18:42,346 INFO L225 Difference]: With dead ends: 439 [2019-12-19 05:18:42,346 INFO L226 Difference]: Without dead ends: 253 [2019-12-19 05:18:42,347 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 05:18:42,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2019-12-19 05:18:42,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2019-12-19 05:18:42,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2019-12-19 05:18:42,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 672 transitions. [2019-12-19 05:18:42,356 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 672 transitions. Word has length 34 [2019-12-19 05:18:42,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:18:42,357 INFO L462 AbstractCegarLoop]: Abstraction has 253 states and 672 transitions. [2019-12-19 05:18:42,357 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:18:42,357 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 672 transitions. [2019-12-19 05:18:42,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:18:42,358 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:18:42,358 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 05:18:42,359 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:18:42,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:18:42,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1107408296, now seen corresponding path program 3 times [2019-12-19 05:18:42,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:18:42,360 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347456339] [2019-12-19 05:18:42,360 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:18:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:18:42,503 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 05:18:42,503 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347456339] [2019-12-19 05:18:42,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:18:42,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:18:42,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463819137] [2019-12-19 05:18:42,504 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:18:42,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:18:42,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:18:42,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:18:42,506 INFO L87 Difference]: Start difference. First operand 253 states and 672 transitions. Second operand 8 states. [2019-12-19 05:18:42,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:18:42,612 INFO L93 Difference]: Finished difference Result 199 states and 510 transitions. [2019-12-19 05:18:42,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:18:42,612 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 05:18:42,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:18:42,613 INFO L225 Difference]: With dead ends: 199 [2019-12-19 05:18:42,613 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 05:18:42,613 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 05:18:42,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 05:18:42,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 05:18:42,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 05:18:42,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 05:18:42,614 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-19 05:18:42,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:18:42,615 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 05:18:42,615 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:18:42,615 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 05:18:42,615 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 05:18:42,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 05:18:42 BasicIcfg [2019-12-19 05:18:42,624 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 05:18:42,629 INFO L168 Benchmark]: Toolchain (without parser) took 4029.58 ms. Allocated memory was 145.2 MB in the beginning and 250.1 MB in the end (delta: 104.9 MB). Free memory was 100.5 MB in the beginning and 163.1 MB in the end (delta: -62.6 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2019-12-19 05:18:42,630 INFO L168 Benchmark]: CDTParser took 1.52 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-19 05:18:42,636 INFO L168 Benchmark]: CACSL2BoogieTranslator took 794.13 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 100.1 MB in the beginning and 158.8 MB in the end (delta: -58.7 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-12-19 05:18:42,637 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.67 ms. Allocated memory is still 202.4 MB. Free memory was 158.8 MB in the beginning and 156.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-12-19 05:18:42,638 INFO L168 Benchmark]: Boogie Preprocessor took 28.54 ms. Allocated memory is still 202.4 MB. Free memory was 156.5 MB in the beginning and 155.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-19 05:18:42,639 INFO L168 Benchmark]: RCFGBuilder took 514.06 ms. Allocated memory is still 202.4 MB. Free memory was 155.2 MB in the beginning and 134.7 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-12-19 05:18:42,640 INFO L168 Benchmark]: TraceAbstraction took 2634.28 ms. Allocated memory was 202.4 MB in the beginning and 250.1 MB in the end (delta: 47.7 MB). Free memory was 134.0 MB in the beginning and 163.1 MB in the end (delta: -29.1 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. [2019-12-19 05:18:42,654 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.52 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 794.13 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 100.1 MB in the beginning and 158.8 MB in the end (delta: -58.7 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.67 ms. Allocated memory is still 202.4 MB. Free memory was 158.8 MB in the beginning and 156.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.54 ms. Allocated memory is still 202.4 MB. Free memory was 156.5 MB in the beginning and 155.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 514.06 ms. Allocated memory is still 202.4 MB. Free memory was 155.2 MB in the beginning and 134.7 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2634.28 ms. Allocated memory was 202.4 MB in the beginning and 250.1 MB in the end (delta: 47.7 MB). Free memory was 134.0 MB in the beginning and 163.1 MB in the end (delta: -29.1 MB). Peak memory consumption was 18.6 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: 2.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 309 SDtfs, 366 SDslu, 847 SDs, 0 SdLazy, 119 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 43 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, 18900 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...