/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-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 22:36:15,308 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 22:36:15,314 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 22:36:15,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 22:36:15,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 22:36:15,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 22:36:15,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 22:36:15,331 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 22:36:15,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 22:36:15,334 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 22:36:15,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 22:36:15,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 22:36:15,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 22:36:15,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 22:36:15,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 22:36:15,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 22:36:15,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 22:36:15,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 22:36:15,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 22:36:15,345 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 22:36:15,347 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 22:36:15,348 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 22:36:15,349 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 22:36:15,350 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 22:36:15,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 22:36:15,353 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 22:36:15,354 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 22:36:15,355 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 22:36:15,355 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 22:36:15,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 22:36:15,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 22:36:15,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 22:36:15,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 22:36:15,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 22:36:15,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 22:36:15,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 22:36:15,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 22:36:15,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 22:36:15,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 22:36:15,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 22:36:15,364 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 22:36:15,364 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-SemanticLbe.epf [2020-04-17 22:36:15,379 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 22:36:15,380 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 22:36:15,381 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 22:36:15,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 22:36:15,381 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 22:36:15,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 22:36:15,382 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 22:36:15,382 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 22:36:15,382 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 22:36:15,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 22:36:15,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 22:36:15,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 22:36:15,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 22:36:15,383 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 22:36:15,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 22:36:15,384 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 22:36:15,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 22:36:15,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 22:36:15,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 22:36:15,384 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 22:36:15,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 22:36:15,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 22:36:15,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 22:36:15,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 22:36:15,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 22:36:15,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 22:36:15,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 22:36:15,386 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 22:36:15,386 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 22:36:15,682 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 22:36:15,704 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 22:36:15,707 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 22:36:15,709 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 22:36:15,709 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 22:36:15,710 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i [2020-04-17 22:36:15,786 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54d2b332f/0df383aaebfb4aca8e95e17ac76b6089/FLAGa1faa9333 [2020-04-17 22:36:16,360 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 22:36:16,362 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i [2020-04-17 22:36:16,378 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54d2b332f/0df383aaebfb4aca8e95e17ac76b6089/FLAGa1faa9333 [2020-04-17 22:36:16,619 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54d2b332f/0df383aaebfb4aca8e95e17ac76b6089 [2020-04-17 22:36:16,629 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 22:36:16,649 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 22:36:16,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 22:36:16,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 22:36:16,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 22:36:16,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:36:16" (1/1) ... [2020-04-17 22:36:16,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bc23754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:36:16, skipping insertion in model container [2020-04-17 22:36:16,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 10:36:16" (1/1) ... [2020-04-17 22:36:16,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 22:36:16,719 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 22:36:17,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 22:36:17,209 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 22:36:17,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 22:36:17,336 INFO L208 MainTranslator]: Completed translation [2020-04-17 22:36:17,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:36:17 WrapperNode [2020-04-17 22:36:17,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 22:36:17,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 22:36:17,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 22:36:17,338 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 22:36:17,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:36:17" (1/1) ... [2020-04-17 22:36:17,365 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:36:17" (1/1) ... [2020-04-17 22:36:17,391 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 22:36:17,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 22:36:17,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 22:36:17,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 22:36:17,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:36:17" (1/1) ... [2020-04-17 22:36:17,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:36:17" (1/1) ... [2020-04-17 22:36:17,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:36:17" (1/1) ... [2020-04-17 22:36:17,404 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:36:17" (1/1) ... [2020-04-17 22:36:17,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:36:17" (1/1) ... [2020-04-17 22:36:17,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:36:17" (1/1) ... [2020-04-17 22:36:17,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:36:17" (1/1) ... [2020-04-17 22:36:17,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 22:36:17,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 22:36:17,428 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 22:36:17,428 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 22:36:17,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:36:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 22:36:17,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 22:36:17,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-17 22:36:17,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 22:36:17,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 22:36:17,497 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-17 22:36:17,497 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-17 22:36:17,497 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-17 22:36:17,497 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-17 22:36:17,498 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-17 22:36:17,498 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-17 22:36:17,498 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-17 22:36:17,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 22:36:17,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 22:36:17,501 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-17 22:36:17,895 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 22:36:17,895 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-17 22:36:17,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:36:17 BoogieIcfgContainer [2020-04-17 22:36:17,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 22:36:17,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 22:36:17,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 22:36:17,905 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 22:36:17,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 10:36:16" (1/3) ... [2020-04-17 22:36:17,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a97243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:36:17, skipping insertion in model container [2020-04-17 22:36:17,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 10:36:17" (2/3) ... [2020-04-17 22:36:17,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a97243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 10:36:17, skipping insertion in model container [2020-04-17 22:36:17,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 10:36:17" (3/3) ... [2020-04-17 22:36:17,909 INFO L109 eAbstractionObserver]: Analyzing ICFG safe034_tso.oepc.i [2020-04-17 22:36:17,920 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 22:36:17,920 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 22:36:17,928 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-17 22:36:17,929 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 22:36:17,966 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:17,966 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:17,967 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:17,967 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:17,968 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:17,968 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:17,969 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:17,970 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:17,970 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:17,971 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:17,971 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:17,971 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:17,972 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:17,973 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:17,973 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:17,973 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:17,974 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:17,974 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:17,983 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:17,983 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:17,983 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:17,984 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:17,998 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:17,999 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:17,999 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:17,999 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:18,003 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:18,004 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:18,004 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:18,005 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 22:36:18,027 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-17 22:36:18,045 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 22:36:18,045 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 22:36:18,045 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 22:36:18,046 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 22:36:18,046 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 22:36:18,046 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 22:36:18,046 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 22:36:18,046 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 22:36:18,063 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-04-17 22:36:18,065 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-04-17 22:36:18,109 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-04-17 22:36:18,109 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 22:36:18,115 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-17 22:36:18,118 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-04-17 22:36:18,142 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-04-17 22:36:18,143 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 22:36:18,143 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-17 22:36:18,145 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-04-17 22:36:18,147 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 22:36:20,037 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2732 [2020-04-17 22:36:20,037 INFO L214 etLargeBlockEncoding]: Total number of compositions: 60 [2020-04-17 22:36:20,042 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-04-17 22:36:20,073 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-04-17 22:36:20,075 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-04-17 22:36:20,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-17 22:36:20,086 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:36:20,088 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:36:20,088 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:36:20,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:36:20,097 INFO L82 PathProgramCache]: Analyzing trace with hash 760003701, now seen corresponding path program 1 times [2020-04-17 22:36:20,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:36:20,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625992753] [2020-04-17 22:36:20,112 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:36:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:36:20,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:36:20,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625992753] [2020-04-17 22:36:20,364 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:36:20,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 22:36:20,366 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203580591] [2020-04-17 22:36:20,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 22:36:20,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:36:20,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 22:36:20,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 22:36:20,389 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-04-17 22:36:20,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:36:20,435 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-04-17 22:36:20,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 22:36:20,437 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-04-17 22:36:20,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:36:20,454 INFO L225 Difference]: With dead ends: 290 [2020-04-17 22:36:20,454 INFO L226 Difference]: Without dead ends: 226 [2020-04-17 22:36:20,455 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 22:36:20,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-04-17 22:36:20,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-04-17 22:36:20,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-04-17 22:36:20,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-04-17 22:36:20,528 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-04-17 22:36:20,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:36:20,529 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-04-17 22:36:20,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 22:36:20,530 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-04-17 22:36:20,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-17 22:36:20,531 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:36:20,531 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:36:20,532 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:36:20,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:36:20,532 INFO L82 PathProgramCache]: Analyzing trace with hash 2069729619, now seen corresponding path program 1 times [2020-04-17 22:36:20,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:36:20,533 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969671296] [2020-04-17 22:36:20,533 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:36:20,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:36:20,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:36:20,632 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969671296] [2020-04-17 22:36:20,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:36:20,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 22:36:20,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020677016] [2020-04-17 22:36:20,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:36:20,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:36:20,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:36:20,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:36:20,635 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 4 states. [2020-04-17 22:36:20,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:36:20,685 INFO L93 Difference]: Finished difference Result 242 states and 605 transitions. [2020-04-17 22:36:20,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 22:36:20,686 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-04-17 22:36:20,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:36:20,688 INFO L225 Difference]: With dead ends: 242 [2020-04-17 22:36:20,688 INFO L226 Difference]: Without dead ends: 178 [2020-04-17 22:36:20,689 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:36:20,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-04-17 22:36:20,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2020-04-17 22:36:20,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-04-17 22:36:20,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 434 transitions. [2020-04-17 22:36:20,715 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 434 transitions. Word has length 9 [2020-04-17 22:36:20,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:36:20,716 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 434 transitions. [2020-04-17 22:36:20,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:36:20,716 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 434 transitions. [2020-04-17 22:36:20,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-17 22:36:20,720 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:36:20,721 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:36:20,723 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:36:20,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:36:20,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1183022512, now seen corresponding path program 1 times [2020-04-17 22:36:20,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:36:20,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762513772] [2020-04-17 22:36:20,725 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:36:20,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:36:20,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:36:20,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762513772] [2020-04-17 22:36:20,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:36:20,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:36:20,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098872090] [2020-04-17 22:36:20,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 22:36:20,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:36:20,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 22:36:20,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:36:20,846 INFO L87 Difference]: Start difference. First operand 178 states and 434 transitions. Second operand 5 states. [2020-04-17 22:36:20,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:36:20,901 INFO L93 Difference]: Finished difference Result 163 states and 368 transitions. [2020-04-17 22:36:20,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 22:36:20,901 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-04-17 22:36:20,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:36:20,903 INFO L225 Difference]: With dead ends: 163 [2020-04-17 22:36:20,903 INFO L226 Difference]: Without dead ends: 126 [2020-04-17 22:36:20,903 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-17 22:36:20,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-04-17 22:36:20,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-04-17 22:36:20,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-04-17 22:36:20,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 278 transitions. [2020-04-17 22:36:20,910 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 278 transitions. Word has length 11 [2020-04-17 22:36:20,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:36:20,911 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 278 transitions. [2020-04-17 22:36:20,911 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 22:36:20,911 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 278 transitions. [2020-04-17 22:36:20,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-17 22:36:20,913 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:36:20,913 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:36:20,913 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:36:20,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:36:20,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1548024821, now seen corresponding path program 1 times [2020-04-17 22:36:20,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:36:20,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742851962] [2020-04-17 22:36:20,914 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:36:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:36:20,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:36:20,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742851962] [2020-04-17 22:36:20,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:36:20,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-17 22:36:20,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730109833] [2020-04-17 22:36:20,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-17 22:36:20,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:36:20,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-17 22:36:20,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-17 22:36:20,993 INFO L87 Difference]: Start difference. First operand 126 states and 278 transitions. Second operand 6 states. [2020-04-17 22:36:21,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:36:21,058 INFO L93 Difference]: Finished difference Result 118 states and 260 transitions. [2020-04-17 22:36:21,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-17 22:36:21,059 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-04-17 22:36:21,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:36:21,060 INFO L225 Difference]: With dead ends: 118 [2020-04-17 22:36:21,060 INFO L226 Difference]: Without dead ends: 108 [2020-04-17 22:36:21,060 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-04-17 22:36:21,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-04-17 22:36:21,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-04-17 22:36:21,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-04-17 22:36:21,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 242 transitions. [2020-04-17 22:36:21,064 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 242 transitions. Word has length 14 [2020-04-17 22:36:21,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:36:21,064 INFO L479 AbstractCegarLoop]: Abstraction has 108 states and 242 transitions. [2020-04-17 22:36:21,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-17 22:36:21,065 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 242 transitions. [2020-04-17 22:36:21,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-17 22:36:21,066 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:36:21,066 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:36:21,066 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:36:21,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:36:21,067 INFO L82 PathProgramCache]: Analyzing trace with hash 2137678742, now seen corresponding path program 1 times [2020-04-17 22:36:21,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:36:21,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413997615] [2020-04-17 22:36:21,068 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:36:21,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:36:21,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:36:21,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413997615] [2020-04-17 22:36:21,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:36:21,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 22:36:21,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548595233] [2020-04-17 22:36:21,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 22:36:21,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:36:21,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 22:36:21,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 22:36:21,100 INFO L87 Difference]: Start difference. First operand 108 states and 242 transitions. Second operand 3 states. [2020-04-17 22:36:21,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:36:21,123 INFO L93 Difference]: Finished difference Result 133 states and 289 transitions. [2020-04-17 22:36:21,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 22:36:21,123 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-04-17 22:36:21,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:36:21,124 INFO L225 Difference]: With dead ends: 133 [2020-04-17 22:36:21,124 INFO L226 Difference]: Without dead ends: 54 [2020-04-17 22:36:21,125 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 22:36:21,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-04-17 22:36:21,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-04-17 22:36:21,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-04-17 22:36:21,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2020-04-17 22:36:21,128 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 17 [2020-04-17 22:36:21,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:36:21,129 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2020-04-17 22:36:21,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 22:36:21,129 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-04-17 22:36:21,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-17 22:36:21,130 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:36:21,130 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:36:21,130 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:36:21,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:36:21,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1164645812, now seen corresponding path program 2 times [2020-04-17 22:36:21,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:36:21,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935573546] [2020-04-17 22:36:21,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:36:21,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:36:21,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:36:21,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935573546] [2020-04-17 22:36:21,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:36:21,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:36:21,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444713456] [2020-04-17 22:36:21,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:36:21,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:36:21,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:36:21,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:36:21,185 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 4 states. [2020-04-17 22:36:21,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:36:21,205 INFO L93 Difference]: Finished difference Result 67 states and 119 transitions. [2020-04-17 22:36:21,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 22:36:21,205 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-04-17 22:36:21,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:36:21,206 INFO L225 Difference]: With dead ends: 67 [2020-04-17 22:36:21,206 INFO L226 Difference]: Without dead ends: 30 [2020-04-17 22:36:21,207 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:36:21,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-04-17 22:36:21,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-04-17 22:36:21,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-04-17 22:36:21,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-04-17 22:36:21,209 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-04-17 22:36:21,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:36:21,209 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-04-17 22:36:21,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:36:21,209 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-04-17 22:36:21,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-17 22:36:21,210 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 22:36:21,210 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 22:36:21,211 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 22:36:21,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 22:36:21,211 INFO L82 PathProgramCache]: Analyzing trace with hash 2098338434, now seen corresponding path program 3 times [2020-04-17 22:36:21,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 22:36:21,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520676600] [2020-04-17 22:36:21,212 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 22:36:21,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 22:36:21,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 22:36:21,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520676600] [2020-04-17 22:36:21,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 22:36:21,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 22:36:21,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124149940] [2020-04-17 22:36:21,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 22:36:21,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 22:36:21,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 22:36:21,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 22:36:21,312 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-04-17 22:36:21,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 22:36:21,330 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-04-17 22:36:21,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 22:36:21,331 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-04-17 22:36:21,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 22:36:21,331 INFO L225 Difference]: With dead ends: 29 [2020-04-17 22:36:21,331 INFO L226 Difference]: Without dead ends: 0 [2020-04-17 22:36:21,332 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 22:36:21,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-17 22:36:21,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-17 22:36:21,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-17 22:36:21,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-17 22:36:21,333 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-04-17 22:36:21,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 22:36:21,334 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-17 22:36:21,334 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 22:36:21,334 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-17 22:36:21,334 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-17 22:36:21,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 10:36:21 BasicIcfg [2020-04-17 22:36:21,341 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 22:36:21,344 INFO L168 Benchmark]: Toolchain (without parser) took 4712.04 ms. Allocated memory was 143.7 MB in the beginning and 249.0 MB in the end (delta: 105.4 MB). Free memory was 101.8 MB in the beginning and 196.0 MB in the end (delta: -94.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2020-04-17 22:36:21,351 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 143.7 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-17 22:36:21,352 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.71 ms. Allocated memory was 143.7 MB in the beginning and 201.9 MB in the end (delta: 58.2 MB). Free memory was 99.9 MB in the beginning and 158.0 MB in the end (delta: -58.1 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2020-04-17 22:36:21,354 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.03 ms. Allocated memory is still 201.9 MB. Free memory was 158.0 MB in the beginning and 156.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-04-17 22:36:21,355 INFO L168 Benchmark]: Boogie Preprocessor took 34.87 ms. Allocated memory is still 201.9 MB. Free memory was 156.0 MB in the beginning and 154.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-17 22:36:21,356 INFO L168 Benchmark]: RCFGBuilder took 472.38 ms. Allocated memory is still 201.9 MB. Free memory was 154.6 MB in the beginning and 132.3 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-04-17 22:36:21,359 INFO L168 Benchmark]: TraceAbstraction took 3439.55 ms. Allocated memory was 201.9 MB in the beginning and 249.0 MB in the end (delta: 47.2 MB). Free memory was 131.7 MB in the beginning and 196.0 MB in the end (delta: -64.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-17 22:36:21,366 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 143.7 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 686.71 ms. Allocated memory was 143.7 MB in the beginning and 201.9 MB in the end (delta: 58.2 MB). Free memory was 99.9 MB in the beginning and 158.0 MB in the end (delta: -58.1 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 55.03 ms. Allocated memory is still 201.9 MB. Free memory was 158.0 MB in the beginning and 156.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 34.87 ms. Allocated memory is still 201.9 MB. Free memory was 156.0 MB in the beginning and 154.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 472.38 ms. Allocated memory is still 201.9 MB. Free memory was 154.6 MB in the beginning and 132.3 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3439.55 ms. Allocated memory was 201.9 MB in the beginning and 249.0 MB in the end (delta: 47.2 MB). Free memory was 131.7 MB in the beginning and 196.0 MB in the end (delta: -64.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.9s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 685 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 10 SemBasedMoverChecksPositive, 32 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2732 CheckedPairsTotal, 60 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 141 SDtfs, 114 SDslu, 191 SDs, 0 SdLazy, 96 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 2838 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...