/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/safe035_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 02:53:24,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 02:53:24,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 02:53:24,539 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 02:53:24,539 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 02:53:24,541 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 02:53:24,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 02:53:24,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 02:53:24,555 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 02:53:24,558 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 02:53:24,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 02:53:24,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 02:53:24,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 02:53:24,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 02:53:24,567 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 02:53:24,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 02:53:24,569 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 02:53:24,570 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 02:53:24,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 02:53:24,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 02:53:24,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 02:53:24,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 02:53:24,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 02:53:24,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 02:53:24,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 02:53:24,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 02:53:24,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 02:53:24,594 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 02:53:24,596 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 02:53:24,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 02:53:24,598 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 02:53:24,599 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 02:53:24,600 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 02:53:24,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 02:53:24,602 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 02:53:24,602 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 02:53:24,603 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 02:53:24,603 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 02:53:24,603 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 02:53:24,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 02:53:24,605 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 02:53:24,606 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 02:53:24,633 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 02:53:24,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 02:53:24,639 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 02:53:24,640 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 02:53:24,640 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 02:53:24,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 02:53:24,640 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 02:53:24,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 02:53:24,641 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 02:53:24,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 02:53:24,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 02:53:24,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 02:53:24,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 02:53:24,642 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 02:53:24,643 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 02:53:24,644 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 02:53:24,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 02:53:24,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 02:53:24,644 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 02:53:24,644 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 02:53:24,645 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 02:53:24,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 02:53:24,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 02:53:24,645 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 02:53:24,645 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 02:53:24,646 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-18 02:53:24,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 02:53:24,650 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 02:53:24,650 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 02:53:24,650 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 02:53:24,926 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 02:53:24,950 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 02:53:24,953 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 02:53:24,955 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 02:53:24,955 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 02:53:24,956 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_rmo.opt.i [2020-04-18 02:53:25,022 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7c79adb5/74dd103dce954b71a0a6b23f0afd0022/FLAGba65096cd [2020-04-18 02:53:25,563 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 02:53:25,564 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_rmo.opt.i [2020-04-18 02:53:25,581 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7c79adb5/74dd103dce954b71a0a6b23f0afd0022/FLAGba65096cd [2020-04-18 02:53:25,852 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7c79adb5/74dd103dce954b71a0a6b23f0afd0022 [2020-04-18 02:53:25,861 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 02:53:25,877 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 02:53:25,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 02:53:25,878 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 02:53:25,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 02:53:25,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:53:25" (1/1) ... [2020-04-18 02:53:25,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49cdb82c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:53:25, skipping insertion in model container [2020-04-18 02:53:25,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 02:53:25" (1/1) ... [2020-04-18 02:53:25,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 02:53:25,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 02:53:26,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 02:53:26,467 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 02:53:26,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 02:53:26,604 INFO L208 MainTranslator]: Completed translation [2020-04-18 02:53:26,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:53:26 WrapperNode [2020-04-18 02:53:26,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 02:53:26,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 02:53:26,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 02:53:26,606 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 02:53:26,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:53:26" (1/1) ... [2020-04-18 02:53:26,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:53:26" (1/1) ... [2020-04-18 02:53:26,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 02:53:26,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 02:53:26,664 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 02:53:26,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 02:53:26,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:53:26" (1/1) ... [2020-04-18 02:53:26,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:53:26" (1/1) ... [2020-04-18 02:53:26,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:53:26" (1/1) ... [2020-04-18 02:53:26,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:53:26" (1/1) ... [2020-04-18 02:53:26,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:53:26" (1/1) ... [2020-04-18 02:53:26,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:53:26" (1/1) ... [2020-04-18 02:53:26,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:53:26" (1/1) ... [2020-04-18 02:53:26,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 02:53:26,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 02:53:26,694 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 02:53:26,694 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 02:53:26,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:53:26" (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 02:53:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 02:53:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 02:53:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 02:53:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 02:53:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 02:53:26,762 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 02:53:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 02:53:26,762 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 02:53:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 02:53:26,763 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 02:53:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 02:53:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 02:53:26,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 02:53:26,765 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 02:53:27,167 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 02:53:27,167 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 02:53:27,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 02:53:27 BoogieIcfgContainer [2020-04-18 02:53:27,171 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 02:53:27,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 02:53:27,173 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 02:53:27,176 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 02:53:27,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 02:53:25" (1/3) ... [2020-04-18 02:53:27,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f464f77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 02:53:27, skipping insertion in model container [2020-04-18 02:53:27,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 02:53:26" (2/3) ... [2020-04-18 02:53:27,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f464f77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 02:53:27, skipping insertion in model container [2020-04-18 02:53:27,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 02:53:27" (3/3) ... [2020-04-18 02:53:27,180 INFO L109 eAbstractionObserver]: Analyzing ICFG safe035_rmo.opt.i [2020-04-18 02:53:27,191 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 02:53:27,191 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 02:53:27,199 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 02:53:27,200 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 02:53:27,227 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:53:27,227 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:53:27,227 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:53:27,228 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:53:27,228 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:53:27,229 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:53:27,229 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:53:27,230 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:53:27,230 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:53:27,230 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:53:27,231 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:53:27,231 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:53:27,231 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:53:27,232 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:53:27,232 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:53:27,232 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:53:27,233 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:53:27,233 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:53:27,240 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:53:27,241 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:53:27,241 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:53:27,242 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:53:27,250 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:53:27,251 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:53:27,251 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:53:27,251 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:53:27,254 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:53:27,254 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:53:27,254 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:53:27,255 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 02:53:27,272 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 02:53:27,293 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 02:53:27,294 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 02:53:27,294 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 02:53:27,294 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 02:53:27,294 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 02:53:27,295 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 02:53:27,295 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 02:53:27,295 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 02:53:27,312 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-04-18 02:53:27,314 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-04-18 02:53:27,360 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-04-18 02:53:27,360 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 02:53:27,365 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. [2020-04-18 02:53:27,368 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-04-18 02:53:27,396 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-04-18 02:53:27,397 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 02:53:27,398 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. [2020-04-18 02:53:27,400 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-04-18 02:53:27,401 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 02:53:28,806 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-04-18 02:53:28,964 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2020-04-18 02:53:29,057 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2414 [2020-04-18 02:53:29,057 INFO L214 etLargeBlockEncoding]: Total number of compositions: 56 [2020-04-18 02:53:29,061 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-04-18 02:53:29,089 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-04-18 02:53:29,092 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-04-18 02:53:29,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 02:53:29,100 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:53:29,101 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:53:29,102 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:53:29,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:53:29,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1626757645, now seen corresponding path program 1 times [2020-04-18 02:53:29,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:53:29,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301464285] [2020-04-18 02:53:29,120 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:53:29,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:53:29,360 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 02:53:29,361 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301464285] [2020-04-18 02:53:29,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:53:29,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-18 02:53:29,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109726540] [2020-04-18 02:53:29,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 02:53:29,369 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:53:29,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 02:53:29,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:53:29,395 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-04-18 02:53:29,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:53:29,453 INFO L93 Difference]: Finished difference Result 294 states and 849 transitions. [2020-04-18 02:53:29,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 02:53:29,457 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-04-18 02:53:29,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:53:29,496 INFO L225 Difference]: With dead ends: 294 [2020-04-18 02:53:29,496 INFO L226 Difference]: Without dead ends: 230 [2020-04-18 02:53:29,498 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 [2020-04-18 02:53:29,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-04-18 02:53:29,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2020-04-18 02:53:29,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-04-18 02:53:29,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 641 transitions. [2020-04-18 02:53:29,609 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 641 transitions. Word has length 8 [2020-04-18 02:53:29,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:53:29,610 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 641 transitions. [2020-04-18 02:53:29,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 02:53:29,610 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 641 transitions. [2020-04-18 02:53:29,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 02:53:29,612 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:53:29,612 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:53:29,612 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:53:29,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:53:29,613 INFO L82 PathProgramCache]: Analyzing trace with hash 113122264, now seen corresponding path program 1 times [2020-04-18 02:53:29,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:53:29,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130001167] [2020-04-18 02:53:29,614 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:53:29,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:53:29,711 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 02:53:29,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130001167] [2020-04-18 02:53:29,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:53:29,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-18 02:53:29,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359090336] [2020-04-18 02:53:29,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 02:53:29,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:53:29,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 02:53:29,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:53:29,717 INFO L87 Difference]: Start difference. First operand 230 states and 641 transitions. Second operand 3 states. [2020-04-18 02:53:29,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:53:29,725 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-04-18 02:53:29,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 02:53:29,725 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-04-18 02:53:29,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:53:29,728 INFO L225 Difference]: With dead ends: 202 [2020-04-18 02:53:29,728 INFO L226 Difference]: Without dead ends: 202 [2020-04-18 02:53:29,729 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 [2020-04-18 02:53:29,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-04-18 02:53:29,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-04-18 02:53:29,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-04-18 02:53:29,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-04-18 02:53:29,742 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-04-18 02:53:29,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:53:29,742 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-04-18 02:53:29,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 02:53:29,742 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-04-18 02:53:29,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-18 02:53:29,744 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:53:29,744 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:53:29,744 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:53:29,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:53:29,745 INFO L82 PathProgramCache]: Analyzing trace with hash -54559497, now seen corresponding path program 1 times [2020-04-18 02:53:29,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:53:29,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222463446] [2020-04-18 02:53:29,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:53:29,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:53:29,797 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 02:53:29,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222463446] [2020-04-18 02:53:29,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:53:29,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:53:29,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620238579] [2020-04-18 02:53:29,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 02:53:29,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:53:29,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 02:53:29,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 02:53:29,799 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-04-18 02:53:29,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:53:29,817 INFO L93 Difference]: Finished difference Result 266 states and 704 transitions. [2020-04-18 02:53:29,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 02:53:29,817 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-04-18 02:53:29,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:53:29,819 INFO L225 Difference]: With dead ends: 266 [2020-04-18 02:53:29,819 INFO L226 Difference]: Without dead ends: 140 [2020-04-18 02:53:29,820 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 [2020-04-18 02:53:29,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-04-18 02:53:29,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-04-18 02:53:29,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-04-18 02:53:29,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 362 transitions. [2020-04-18 02:53:29,830 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 362 transitions. Word has length 10 [2020-04-18 02:53:29,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:53:29,830 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 362 transitions. [2020-04-18 02:53:29,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 02:53:29,831 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 362 transitions. [2020-04-18 02:53:29,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 02:53:29,832 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:53:29,832 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:53:29,832 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:53:29,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:53:29,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1691362226, now seen corresponding path program 1 times [2020-04-18 02:53:29,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:53:29,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147663358] [2020-04-18 02:53:29,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:53:29,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:53:29,942 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 02:53:29,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147663358] [2020-04-18 02:53:29,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:53:29,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 02:53:29,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191301856] [2020-04-18 02:53:29,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:53:29,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:53:29,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:53:29,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:53:29,944 INFO L87 Difference]: Start difference. First operand 140 states and 362 transitions. Second operand 4 states. [2020-04-18 02:53:29,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:53:29,992 INFO L93 Difference]: Finished difference Result 165 states and 389 transitions. [2020-04-18 02:53:29,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 02:53:29,992 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-04-18 02:53:29,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:53:29,994 INFO L225 Difference]: With dead ends: 165 [2020-04-18 02:53:29,994 INFO L226 Difference]: Without dead ends: 113 [2020-04-18 02:53:29,994 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 02:53:29,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-04-18 02:53:30,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-04-18 02:53:30,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-04-18 02:53:30,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 257 transitions. [2020-04-18 02:53:30,002 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 257 transitions. Word has length 11 [2020-04-18 02:53:30,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:53:30,003 INFO L479 AbstractCegarLoop]: Abstraction has 113 states and 257 transitions. [2020-04-18 02:53:30,003 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:53:30,003 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 257 transitions. [2020-04-18 02:53:30,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 02:53:30,004 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:53:30,004 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:53:30,004 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:53:30,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:53:30,005 INFO L82 PathProgramCache]: Analyzing trace with hash -891715752, now seen corresponding path program 1 times [2020-04-18 02:53:30,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:53:30,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715611731] [2020-04-18 02:53:30,005 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:53:30,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:53:30,061 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 02:53:30,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715611731] [2020-04-18 02:53:30,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:53:30,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:53:30,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314248331] [2020-04-18 02:53:30,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 02:53:30,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:53:30,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 02:53:30,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:53:30,064 INFO L87 Difference]: Start difference. First operand 113 states and 257 transitions. Second operand 5 states. [2020-04-18 02:53:30,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:53:30,114 INFO L93 Difference]: Finished difference Result 111 states and 232 transitions. [2020-04-18 02:53:30,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 02:53:30,114 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-04-18 02:53:30,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:53:30,115 INFO L225 Difference]: With dead ends: 111 [2020-04-18 02:53:30,116 INFO L226 Difference]: Without dead ends: 80 [2020-04-18 02:53:30,116 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 [2020-04-18 02:53:30,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-04-18 02:53:30,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-04-18 02:53:30,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-04-18 02:53:30,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 159 transitions. [2020-04-18 02:53:30,127 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 159 transitions. Word has length 12 [2020-04-18 02:53:30,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:53:30,127 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 159 transitions. [2020-04-18 02:53:30,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 02:53:30,127 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 159 transitions. [2020-04-18 02:53:30,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 02:53:30,128 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:53:30,128 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 02:53:30,128 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:53:30,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:53:30,129 INFO L82 PathProgramCache]: Analyzing trace with hash 2053094164, now seen corresponding path program 1 times [2020-04-18 02:53:30,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:53:30,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790178921] [2020-04-18 02:53:30,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:53:30,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:53:30,244 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 02:53:30,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790178921] [2020-04-18 02:53:30,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:53:30,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 02:53:30,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860159623] [2020-04-18 02:53:30,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 02:53:30,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:53:30,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 02:53:30,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-18 02:53:30,250 INFO L87 Difference]: Start difference. First operand 80 states and 159 transitions. Second operand 6 states. [2020-04-18 02:53:30,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:53:30,318 INFO L93 Difference]: Finished difference Result 75 states and 147 transitions. [2020-04-18 02:53:30,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-18 02:53:30,318 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-04-18 02:53:30,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:53:30,319 INFO L225 Difference]: With dead ends: 75 [2020-04-18 02:53:30,319 INFO L226 Difference]: Without dead ends: 66 [2020-04-18 02:53:30,320 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 [2020-04-18 02:53:30,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-04-18 02:53:30,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-04-18 02:53:30,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-04-18 02:53:30,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 131 transitions. [2020-04-18 02:53:30,344 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 131 transitions. Word has length 14 [2020-04-18 02:53:30,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:53:30,344 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 131 transitions. [2020-04-18 02:53:30,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 02:53:30,344 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 131 transitions. [2020-04-18 02:53:30,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 02:53:30,349 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:53:30,349 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 02:53:30,349 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:53:30,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:53:30,349 INFO L82 PathProgramCache]: Analyzing trace with hash -913032564, now seen corresponding path program 1 times [2020-04-18 02:53:30,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:53:30,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853693546] [2020-04-18 02:53:30,352 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:53:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:53:30,410 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 02:53:30,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853693546] [2020-04-18 02:53:30,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:53:30,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:53:30,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687226122] [2020-04-18 02:53:30,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:53:30,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:53:30,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:53:30,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:53:30,412 INFO L87 Difference]: Start difference. First operand 66 states and 131 transitions. Second operand 4 states. [2020-04-18 02:53:30,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:53:30,432 INFO L93 Difference]: Finished difference Result 85 states and 165 transitions. [2020-04-18 02:53:30,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 02:53:30,433 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-04-18 02:53:30,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:53:30,434 INFO L225 Difference]: With dead ends: 85 [2020-04-18 02:53:30,434 INFO L226 Difference]: Without dead ends: 48 [2020-04-18 02:53:30,434 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:53:30,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-04-18 02:53:30,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-04-18 02:53:30,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-04-18 02:53:30,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 83 transitions. [2020-04-18 02:53:30,437 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 83 transitions. Word has length 17 [2020-04-18 02:53:30,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:53:30,437 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 83 transitions. [2020-04-18 02:53:30,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:53:30,438 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 83 transitions. [2020-04-18 02:53:30,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 02:53:30,439 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 02:53:30,439 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 02:53:30,439 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 02:53:30,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 02:53:30,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1376526520, now seen corresponding path program 2 times [2020-04-18 02:53:30,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 02:53:30,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534043158] [2020-04-18 02:53:30,440 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 02:53:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 02:53:30,471 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 02:53:30,472 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534043158] [2020-04-18 02:53:30,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 02:53:30,472 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 02:53:30,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199496622] [2020-04-18 02:53:30,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 02:53:30,473 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 02:53:30,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 02:53:30,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 02:53:30,474 INFO L87 Difference]: Start difference. First operand 48 states and 83 transitions. Second operand 4 states. [2020-04-18 02:53:30,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 02:53:30,486 INFO L93 Difference]: Finished difference Result 47 states and 82 transitions. [2020-04-18 02:53:30,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 02:53:30,486 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-04-18 02:53:30,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 02:53:30,486 INFO L225 Difference]: With dead ends: 47 [2020-04-18 02:53:30,487 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 02:53:30,487 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 02:53:30,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 02:53:30,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 02:53:30,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 02:53:30,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 02:53:30,488 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-04-18 02:53:30,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 02:53:30,488 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 02:53:30,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 02:53:30,488 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 02:53:30,488 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 02:53:30,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 02:53:30 BasicIcfg [2020-04-18 02:53:30,493 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 02:53:30,495 INFO L168 Benchmark]: Toolchain (without parser) took 4632.24 ms. Allocated memory was 138.9 MB in the beginning and 246.9 MB in the end (delta: 108.0 MB). Free memory was 102.2 MB in the beginning and 195.1 MB in the end (delta: -93.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. [2020-04-18 02:53:30,496 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-04-18 02:53:30,497 INFO L168 Benchmark]: CACSL2BoogieTranslator took 727.14 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.3 MB in the beginning and 159.3 MB in the end (delta: -59.0 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2020-04-18 02:53:30,498 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.17 ms. Allocated memory is still 202.9 MB. Free memory was 159.3 MB in the beginning and 157.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 02:53:30,498 INFO L168 Benchmark]: Boogie Preprocessor took 29.55 ms. Allocated memory is still 202.9 MB. Free memory was 157.3 MB in the beginning and 155.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 02:53:30,502 INFO L168 Benchmark]: RCFGBuilder took 477.46 ms. Allocated memory is still 202.9 MB. Free memory was 155.9 MB in the beginning and 133.4 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-04-18 02:53:30,503 INFO L168 Benchmark]: TraceAbstraction took 3319.85 ms. Allocated memory was 202.9 MB in the beginning and 246.9 MB in the end (delta: 44.0 MB). Free memory was 133.4 MB in the beginning and 195.1 MB in the end (delta: -61.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 02:53:30,513 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 727.14 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.3 MB in the beginning and 159.3 MB in the end (delta: -59.0 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.17 ms. Allocated memory is still 202.9 MB. Free memory was 159.3 MB in the beginning and 157.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.55 ms. Allocated memory is still 202.9 MB. Free memory was 157.3 MB in the beginning and 155.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 477.46 ms. Allocated memory is still 202.9 MB. Free memory was 155.9 MB in the beginning and 133.4 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3319.85 ms. Allocated memory was 202.9 MB in the beginning and 246.9 MB in the end (delta: 44.0 MB). Free memory was 133.4 MB in the beginning and 195.1 MB in the end (delta: -61.7 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, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 626 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2414 CheckedPairsTotal, 56 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: 3.1s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 156 SDtfs, 124 SDslu, 170 SDs, 0 SdLazy, 107 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 4 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: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 2932 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...