/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-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 02:41:09,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 02:41:09,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 02:41:09,424 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 02:41:09,425 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 02:41:09,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 02:41:09,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 02:41:09,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 02:41:09,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 02:41:09,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 02:41:09,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 02:41:09,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 02:41:09,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 02:41:09,436 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 02:41:09,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 02:41:09,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 02:41:09,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 02:41:09,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 02:41:09,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 02:41:09,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 02:41:09,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 02:41:09,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 02:41:09,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 02:41:09,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 02:41:09,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 02:41:09,470 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 02:41:09,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 02:41:09,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 02:41:09,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 02:41:09,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 02:41:09,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 02:41:09,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 02:41:09,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 02:41:09,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 02:41:09,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 02:41:09,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 02:41:09,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 02:41:09,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 02:41:09,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 02:41:09,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 02:41:09,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 02:41:09,487 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-VariableLbe.epf [2020-04-18 02:41:09,511 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 02:41:09,511 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 02:41:09,512 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 02:41:09,512 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 02:41:09,513 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 02:41:09,513 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 02:41:09,513 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 02:41:09,513 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 02:41:09,513 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 02:41:09,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 02:41:09,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 02:41:09,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 02:41:09,514 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 02:41:09,514 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 02:41:09,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 02:41:09,515 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 02:41:09,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 02:41:09,515 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 02:41:09,515 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 02:41:09,516 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 02:41:09,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 02:41:09,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 02:41:09,516 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 02:41:09,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 02:41:09,517 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 02:41:09,517 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-18 02:41:09,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 02:41:09,517 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 02:41:09,517 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 02:41:09,518 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 02:41:09,789 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 02:41:09,803 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 02:41:09,807 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 02:41:09,809 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 02:41:09,809 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 02:41:09,810 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2020-04-18 02:41:09,889 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f63e9700/4fa4097570954bc7a9bcbbe1904a9a7f/FLAGf7e4d7056 [2020-04-18 02:41:10,428 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 02:41:10,429 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2020-04-18 02:41:10,448 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f63e9700/4fa4097570954bc7a9bcbbe1904a9a7f/FLAGf7e4d7056 [2020-04-18 02:41:10,728 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f63e9700/4fa4097570954bc7a9bcbbe1904a9a7f [2020-04-18 02:41:10,738 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 02:41:10,755 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 02:41:10,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 02:41:10,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 02:41:10,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 02:41:10,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:41:10" (1/1) ... [2020-04-18 02:41:10,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@484e6d23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:10, skipping insertion in model container [2020-04-18 02:41:10,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:41:10" (1/1) ... [2020-04-18 02:41:10,771 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 02:41:10,825 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 02:41:11,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 02:41:11,380 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 02:41:11,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 02:41:11,521 INFO L208 MainTranslator]: Completed translation [2020-04-18 02:41:11,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:11 WrapperNode [2020-04-18 02:41:11,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 02:41:11,523 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 02:41:11,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 02:41:11,523 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 02:41:11,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:11" (1/1) ... [2020-04-18 02:41:11,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:11" (1/1) ... [2020-04-18 02:41:11,576 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 02:41:11,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 02:41:11,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 02:41:11,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 02:41:11,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:11" (1/1) ... [2020-04-18 02:41:11,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:11" (1/1) ... [2020-04-18 02:41:11,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:11" (1/1) ... [2020-04-18 02:41:11,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:11" (1/1) ... [2020-04-18 02:41:11,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:11" (1/1) ... [2020-04-18 02:41:11,616 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:11" (1/1) ... [2020-04-18 02:41:11,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:11" (1/1) ... [2020-04-18 02:41:11,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 02:41:11,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 02:41:11,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 02:41:11,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 02:41:11,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:11" (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 [2020-04-18 02:41:11,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 02:41:11,682 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 02:41:11,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 02:41:11,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 02:41:11,682 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 02:41:11,682 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 02:41:11,682 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 02:41:11,683 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 02:41:11,683 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 02:41:11,683 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 02:41:11,683 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-04-18 02:41:11,683 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-04-18 02:41:11,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 02:41:11,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 02:41:11,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 02:41:11,686 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 02:41:12,094 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 02:41:12,095 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 02:41:12,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 02:41:12 BoogieIcfgContainer [2020-04-18 02:41:12,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 02:41:12,101 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 02:41:12,101 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 02:41:12,104 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 02:41:12,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 02:41:10" (1/3) ... [2020-04-18 02:41:12,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32150073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 02:41:12, skipping insertion in model container [2020-04-18 02:41:12,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:41:11" (2/3) ... [2020-04-18 02:41:12,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32150073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 02:41:12, skipping insertion in model container [2020-04-18 02:41:12,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 02:41:12" (3/3) ... [2020-04-18 02:41:12,108 INFO L109 eAbstractionObserver]: Analyzing ICFG safe027_tso.opt.i [2020-04-18 02:41:12,118 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 02:41:12,118 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 02:41:12,124 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 02:41:12,125 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 02:41:12,159 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,160 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,160 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,160 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,161 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,161 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,162 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,162 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,163 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,163 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,164 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,164 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,165 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,165 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,165 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,166 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,167 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,167 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,168 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,168 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,168 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,168 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,170 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,171 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,179 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,179 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,180 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,180 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,197 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,197 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,197 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,197 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,200 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,201 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,202 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,202 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,208 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,209 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,210 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,210 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:41:12,228 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-04-18 02:41:12,249 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 02:41:12,249 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 02:41:12,249 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 02:41:12,249 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 02:41:12,249 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 02:41:12,250 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 02:41:12,250 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 02:41:12,250 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 02:41:12,265 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 82 transitions, 184 flow [2020-04-18 02:41:12,268 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-04-18 02:41:12,317 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-04-18 02:41:12,318 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 02:41:12,324 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-04-18 02:41:12,328 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-04-18 02:41:12,379 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-04-18 02:41:12,382 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 02:41:12,383 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-04-18 02:41:12,386 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-04-18 02:41:12,388 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 02:41:13,912 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-04-18 02:41:13,996 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2807 [2020-04-18 02:41:13,996 INFO L214 etLargeBlockEncoding]: Total number of compositions: 63 [2020-04-18 02:41:14,001 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-04-18 02:41:14,079 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-04-18 02:41:14,082 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-04-18 02:41:14,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-18 02:41:14,093 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:41:14,094 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:41:14,094 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:41:14,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:41:14,102 INFO L82 PathProgramCache]: Analyzing trace with hash 91051740, now seen corresponding path program 1 times [2020-04-18 02:41:14,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:41:14,117 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119600439] [2020-04-18 02:41:14,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:41:14,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:41:14,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:41:14,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119600439] [2020-04-18 02:41:14,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:41:14,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:41:14,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696819939] [2020-04-18 02:41:14,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-18 02:41:14,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:41:14,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 02:41:14,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 02:41:14,383 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-04-18 02:41:14,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:41:14,439 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-04-18 02:41:14,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-18 02:41:14,440 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-04-18 02:41:14,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:41:14,490 INFO L225 Difference]: With dead ends: 850 [2020-04-18 02:41:14,490 INFO L226 Difference]: Without dead ends: 706 [2020-04-18 02:41:14,492 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 02:41:14,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-04-18 02:41:14,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-04-18 02:41:14,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-04-18 02:41:14,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-04-18 02:41:14,622 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-04-18 02:41:14,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:41:14,624 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-04-18 02:41:14,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-18 02:41:14,624 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-04-18 02:41:14,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 02:41:14,629 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:41:14,629 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:41:14,629 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:41:14,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:41:14,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1472387704, now seen corresponding path program 1 times [2020-04-18 02:41:14,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:41:14,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471356260] [2020-04-18 02:41:14,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:41:14,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:41:14,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:41:14,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471356260] [2020-04-18 02:41:14,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:41:14,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:41:14,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637542520] [2020-04-18 02:41:14,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:41:14,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:41:14,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:41:14,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:41:14,794 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-04-18 02:41:14,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:41:14,832 INFO L93 Difference]: Finished difference Result 778 states and 2592 transitions. [2020-04-18 02:41:14,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:41:14,833 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-04-18 02:41:14,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:41:14,839 INFO L225 Difference]: With dead ends: 778 [2020-04-18 02:41:14,839 INFO L226 Difference]: Without dead ends: 634 [2020-04-18 02:41:14,840 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 [2020-04-18 02:41:14,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-04-18 02:41:14,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2020-04-18 02:41:14,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-04-18 02:41:14,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2148 transitions. [2020-04-18 02:41:14,873 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2148 transitions. Word has length 11 [2020-04-18 02:41:14,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:41:14,874 INFO L479 AbstractCegarLoop]: Abstraction has 634 states and 2148 transitions. [2020-04-18 02:41:14,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:41:14,874 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2148 transitions. [2020-04-18 02:41:14,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 02:41:14,877 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:41:14,877 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:41:14,877 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:41:14,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:41:14,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1607812272, now seen corresponding path program 1 times [2020-04-18 02:41:14,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:41:14,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632776857] [2020-04-18 02:41:14,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:41:14,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:41:14,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:41:15,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632776857] [2020-04-18 02:41:15,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:41:15,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:41:15,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201930894] [2020-04-18 02:41:15,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:41:15,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:41:15,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:41:15,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:41:15,002 INFO L87 Difference]: Start difference. First operand 634 states and 2148 transitions. Second operand 4 states. [2020-04-18 02:41:15,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:41:15,032 INFO L93 Difference]: Finished difference Result 688 states and 2256 transitions. [2020-04-18 02:41:15,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:41:15,032 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-18 02:41:15,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:41:15,038 INFO L225 Difference]: With dead ends: 688 [2020-04-18 02:41:15,038 INFO L226 Difference]: Without dead ends: 580 [2020-04-18 02:41:15,039 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 [2020-04-18 02:41:15,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-04-18 02:41:15,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2020-04-18 02:41:15,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-04-18 02:41:15,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 1932 transitions. [2020-04-18 02:41:15,062 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 1932 transitions. Word has length 12 [2020-04-18 02:41:15,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:41:15,063 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 1932 transitions. [2020-04-18 02:41:15,063 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:41:15,063 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 1932 transitions. [2020-04-18 02:41:15,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 02:41:15,065 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:41:15,065 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:41:15,065 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:41:15,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:41:15,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1718865431, now seen corresponding path program 1 times [2020-04-18 02:41:15,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:41:15,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657004863] [2020-04-18 02:41:15,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:41:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:41:15,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:41:15,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657004863] [2020-04-18 02:41:15,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:41:15,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:41:15,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801247018] [2020-04-18 02:41:15,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:41:15,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:41:15,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:41:15,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:41:15,163 INFO L87 Difference]: Start difference. First operand 580 states and 1932 transitions. Second operand 5 states. [2020-04-18 02:41:15,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:41:15,231 INFO L93 Difference]: Finished difference Result 751 states and 2457 transitions. [2020-04-18 02:41:15,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 02:41:15,231 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-04-18 02:41:15,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:41:15,235 INFO L225 Difference]: With dead ends: 751 [2020-04-18 02:41:15,235 INFO L226 Difference]: Without dead ends: 358 [2020-04-18 02:41:15,235 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 02:41:15,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-04-18 02:41:15,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2020-04-18 02:41:15,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-04-18 02:41:15,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 1128 transitions. [2020-04-18 02:41:15,278 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 1128 transitions. Word has length 13 [2020-04-18 02:41:15,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:41:15,278 INFO L479 AbstractCegarLoop]: Abstraction has 358 states and 1128 transitions. [2020-04-18 02:41:15,279 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:41:15,279 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 1128 transitions. [2020-04-18 02:41:15,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 02:41:15,280 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:41:15,280 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:41:15,280 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:41:15,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:41:15,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1081404616, now seen corresponding path program 1 times [2020-04-18 02:41:15,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:41:15,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568493755] [2020-04-18 02:41:15,281 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:41:15,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:41:15,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:41:15,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568493755] [2020-04-18 02:41:15,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:41:15,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:41:15,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829818460] [2020-04-18 02:41:15,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:41:15,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:41:15,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:41:15,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:41:15,360 INFO L87 Difference]: Start difference. First operand 358 states and 1128 transitions. Second operand 5 states. [2020-04-18 02:41:15,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:41:15,422 INFO L93 Difference]: Finished difference Result 496 states and 1517 transitions. [2020-04-18 02:41:15,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 02:41:15,423 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-04-18 02:41:15,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:41:15,425 INFO L225 Difference]: With dead ends: 496 [2020-04-18 02:41:15,425 INFO L226 Difference]: Without dead ends: 262 [2020-04-18 02:41:15,426 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 02:41:15,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-04-18 02:41:15,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-04-18 02:41:15,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-04-18 02:41:15,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 771 transitions. [2020-04-18 02:41:15,435 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 771 transitions. Word has length 14 [2020-04-18 02:41:15,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:41:15,435 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 771 transitions. [2020-04-18 02:41:15,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:41:15,435 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 771 transitions. [2020-04-18 02:41:15,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-04-18 02:41:15,436 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:41:15,436 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:41:15,437 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:41:15,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:41:15,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1257194017, now seen corresponding path program 1 times [2020-04-18 02:41:15,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:41:15,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236158709] [2020-04-18 02:41:15,438 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:41:15,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:41:15,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:41:15,543 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236158709] [2020-04-18 02:41:15,544 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:41:15,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:41:15,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453576348] [2020-04-18 02:41:15,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:41:15,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:41:15,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:41:15,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:41:15,546 INFO L87 Difference]: Start difference. First operand 262 states and 771 transitions. Second operand 4 states. [2020-04-18 02:41:15,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:41:15,609 INFO L93 Difference]: Finished difference Result 319 states and 873 transitions. [2020-04-18 02:41:15,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:41:15,610 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-04-18 02:41:15,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:41:15,613 INFO L225 Difference]: With dead ends: 319 [2020-04-18 02:41:15,613 INFO L226 Difference]: Without dead ends: 238 [2020-04-18 02:41:15,613 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 [2020-04-18 02:41:15,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-04-18 02:41:15,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2020-04-18 02:41:15,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-04-18 02:41:15,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 659 transitions. [2020-04-18 02:41:15,624 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 659 transitions. Word has length 15 [2020-04-18 02:41:15,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:41:15,624 INFO L479 AbstractCegarLoop]: Abstraction has 238 states and 659 transitions. [2020-04-18 02:41:15,625 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:41:15,625 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 659 transitions. [2020-04-18 02:41:15,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-04-18 02:41:15,626 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:41:15,627 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:41:15,627 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:41:15,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:41:15,627 INFO L82 PathProgramCache]: Analyzing trace with hash -857649028, now seen corresponding path program 1 times [2020-04-18 02:41:15,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:41:15,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102129053] [2020-04-18 02:41:15,629 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:41:15,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:41:15,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:41:15,751 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102129053] [2020-04-18 02:41:15,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:41:15,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 02:41:15,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73513379] [2020-04-18 02:41:15,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:41:15,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:41:15,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:41:15,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:41:15,753 INFO L87 Difference]: Start difference. First operand 238 states and 659 transitions. Second operand 5 states. [2020-04-18 02:41:15,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:41:15,819 INFO L93 Difference]: Finished difference Result 247 states and 617 transitions. [2020-04-18 02:41:15,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 02:41:15,820 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-04-18 02:41:15,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:41:15,821 INFO L225 Difference]: With dead ends: 247 [2020-04-18 02:41:15,822 INFO L226 Difference]: Without dead ends: 182 [2020-04-18 02:41:15,822 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-18 02:41:15,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-04-18 02:41:15,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-04-18 02:41:15,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-04-18 02:41:15,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 443 transitions. [2020-04-18 02:41:15,829 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 443 transitions. Word has length 16 [2020-04-18 02:41:15,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:41:15,830 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 443 transitions. [2020-04-18 02:41:15,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:41:15,830 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 443 transitions. [2020-04-18 02:41:15,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 02:41:15,831 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:41:15,831 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:41:15,831 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:41:15,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:41:15,831 INFO L82 PathProgramCache]: Analyzing trace with hash -981483084, now seen corresponding path program 1 times [2020-04-18 02:41:15,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:41:15,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798769273] [2020-04-18 02:41:15,832 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:41:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:41:15,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:41:15,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798769273] [2020-04-18 02:41:15,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:41:15,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 02:41:15,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167964380] [2020-04-18 02:41:15,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 02:41:15,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:41:15,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 02:41:15,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-18 02:41:15,958 INFO L87 Difference]: Start difference. First operand 182 states and 443 transitions. Second operand 6 states. [2020-04-18 02:41:16,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:41:16,026 INFO L93 Difference]: Finished difference Result 165 states and 373 transitions. [2020-04-18 02:41:16,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-18 02:41:16,027 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-04-18 02:41:16,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:41:16,028 INFO L225 Difference]: With dead ends: 165 [2020-04-18 02:41:16,028 INFO L226 Difference]: Without dead ends: 132 [2020-04-18 02:41:16,029 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-04-18 02:41:16,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-04-18 02:41:16,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-04-18 02:41:16,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-04-18 02:41:16,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 295 transitions. [2020-04-18 02:41:16,037 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 295 transitions. Word has length 17 [2020-04-18 02:41:16,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:41:16,038 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 295 transitions. [2020-04-18 02:41:16,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 02:41:16,042 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 295 transitions. [2020-04-18 02:41:16,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-18 02:41:16,043 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:41:16,043 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:41:16,043 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:41:16,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:41:16,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1311703103, now seen corresponding path program 1 times [2020-04-18 02:41:16,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:41:16,045 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667898581] [2020-04-18 02:41:16,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:41:16,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:41:16,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:41:16,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667898581] [2020-04-18 02:41:16,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:41:16,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 02:41:16,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565090756] [2020-04-18 02:41:16,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 02:41:16,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:41:16,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 02:41:16,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-18 02:41:16,151 INFO L87 Difference]: Start difference. First operand 132 states and 295 transitions. Second operand 7 states. [2020-04-18 02:41:16,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:41:16,219 INFO L93 Difference]: Finished difference Result 121 states and 271 transitions. [2020-04-18 02:41:16,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-04-18 02:41:16,220 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-04-18 02:41:16,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:41:16,221 INFO L225 Difference]: With dead ends: 121 [2020-04-18 02:41:16,222 INFO L226 Difference]: Without dead ends: 112 [2020-04-18 02:41:16,224 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-04-18 02:41:16,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-04-18 02:41:16,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-04-18 02:41:16,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-04-18 02:41:16,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 255 transitions. [2020-04-18 02:41:16,228 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 255 transitions. Word has length 19 [2020-04-18 02:41:16,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:41:16,228 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 255 transitions. [2020-04-18 02:41:16,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 02:41:16,228 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 255 transitions. [2020-04-18 02:41:16,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 02:41:16,229 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:41:16,229 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:41:16,229 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:41:16,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:41:16,230 INFO L82 PathProgramCache]: Analyzing trace with hash 188961609, now seen corresponding path program 1 times [2020-04-18 02:41:16,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:41:16,231 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013028644] [2020-04-18 02:41:16,231 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:41:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:41:16,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:41:16,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013028644] [2020-04-18 02:41:16,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:41:16,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 02:41:16,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808874198] [2020-04-18 02:41:16,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:41:16,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:41:16,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:41:16,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:41:16,298 INFO L87 Difference]: Start difference. First operand 112 states and 255 transitions. Second operand 5 states. [2020-04-18 02:41:16,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:41:16,333 INFO L93 Difference]: Finished difference Result 146 states and 329 transitions. [2020-04-18 02:41:16,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:41:16,333 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-04-18 02:41:16,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:41:16,334 INFO L225 Difference]: With dead ends: 146 [2020-04-18 02:41:16,334 INFO L226 Difference]: Without dead ends: 52 [2020-04-18 02:41:16,335 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-18 02:41:16,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-04-18 02:41:16,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-04-18 02:41:16,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-04-18 02:41:16,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 98 transitions. [2020-04-18 02:41:16,339 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 98 transitions. Word has length 21 [2020-04-18 02:41:16,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:41:16,339 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 98 transitions. [2020-04-18 02:41:16,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:41:16,340 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2020-04-18 02:41:16,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 02:41:16,340 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:41:16,340 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:41:16,340 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:41:16,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:41:16,341 INFO L82 PathProgramCache]: Analyzing trace with hash -62971415, now seen corresponding path program 2 times [2020-04-18 02:41:16,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:41:16,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237131352] [2020-04-18 02:41:16,360 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:41:16,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:41:16,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 02:41:16,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237131352] [2020-04-18 02:41:16,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:41:16,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 02:41:16,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088771221] [2020-04-18 02:41:16,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:41:16,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:41:16,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:41:16,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:41:16,421 INFO L87 Difference]: Start difference. First operand 52 states and 98 transitions. Second operand 5 states. [2020-04-18 02:41:16,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:41:16,444 INFO L93 Difference]: Finished difference Result 51 states and 97 transitions. [2020-04-18 02:41:16,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:41:16,444 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-04-18 02:41:16,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:41:16,445 INFO L225 Difference]: With dead ends: 51 [2020-04-18 02:41:16,445 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 02:41:16,446 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-18 02:41:16,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 02:41:16,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 02:41:16,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 02:41:16,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 02:41:16,447 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-04-18 02:41:16,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:41:16,447 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 02:41:16,447 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:41:16,447 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 02:41:16,448 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 02:41:16,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 02:41:16 BasicIcfg [2020-04-18 02:41:16,452 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 02:41:16,454 INFO L168 Benchmark]: Toolchain (without parser) took 5714.82 ms. Allocated memory was 145.2 MB in the beginning and 286.3 MB in the end (delta: 141.0 MB). Free memory was 99.7 MB in the beginning and 242.0 MB in the end (delta: -142.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 02:41:16,456 INFO L168 Benchmark]: CDTParser took 0.22 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: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-04-18 02:41:16,462 INFO L168 Benchmark]: CACSL2BoogieTranslator took 766.75 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 97.8 MB in the beginning and 158.7 MB in the end (delta: -60.8 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2020-04-18 02:41:16,464 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.08 ms. Allocated memory is still 203.4 MB. Free memory was 158.7 MB in the beginning and 156.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 02:41:16,465 INFO L168 Benchmark]: Boogie Preprocessor took 46.93 ms. Allocated memory is still 203.4 MB. Free memory was 156.6 MB in the beginning and 154.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 02:41:16,466 INFO L168 Benchmark]: RCFGBuilder took 475.99 ms. Allocated memory is still 203.4 MB. Free memory was 154.7 MB in the beginning and 130.7 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-04-18 02:41:16,470 INFO L168 Benchmark]: TraceAbstraction took 4351.75 ms. Allocated memory was 203.4 MB in the beginning and 286.3 MB in the end (delta: 82.8 MB). Free memory was 130.7 MB in the beginning and 242.0 MB in the end (delta: -111.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 02:41:16,479 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 766.75 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 97.8 MB in the beginning and 158.7 MB in the end (delta: -60.8 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.08 ms. Allocated memory is still 203.4 MB. Free memory was 158.7 MB in the beginning and 156.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 46.93 ms. Allocated memory is still 203.4 MB. Free memory was 156.6 MB in the beginning and 154.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 475.99 ms. Allocated memory is still 203.4 MB. Free memory was 154.7 MB in the beginning and 130.7 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4351.75 ms. Allocated memory was 203.4 MB in the beginning and 286.3 MB in the end (delta: 82.8 MB). Free memory was 130.7 MB in the beginning and 242.0 MB in the end (delta: -111.3 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: 1.7s, 93 ProgramPointsBefore, 39 ProgramPointsAfterwards, 82 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 933 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2807 CheckedPairsTotal, 63 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 5 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.2s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 267 SDtfs, 328 SDslu, 473 SDs, 0 SdLazy, 205 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred 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: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 6930 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...