/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-12 00:05:42,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-12 00:05:42,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-12 00:05:42,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-12 00:05:42,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-12 00:05:42,567 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-12 00:05:42,570 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-12 00:05:42,573 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-12 00:05:42,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-12 00:05:42,578 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-12 00:05:42,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-12 00:05:42,580 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-12 00:05:42,581 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-12 00:05:42,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-12 00:05:42,588 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-12 00:05:42,589 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-12 00:05:42,591 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-12 00:05:42,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-12 00:05:42,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-12 00:05:42,600 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-12 00:05:42,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-12 00:05:42,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-12 00:05:42,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-12 00:05:42,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-12 00:05:42,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-12 00:05:42,618 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-12 00:05:42,619 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-12 00:05:42,619 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-12 00:05:42,620 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-12 00:05:42,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-12 00:05:42,622 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-12 00:05:42,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-12 00:05:42,623 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-12 00:05:42,623 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-12 00:05:42,624 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-12 00:05:42,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-12 00:05:42,626 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-12 00:05:42,675 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-12 00:05:42,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-12 00:05:42,678 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-12 00:05:42,678 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-12 00:05:42,678 INFO L138 SettingsManager]: * Use SBE=true [2020-09-12 00:05:42,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-12 00:05:42,679 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-12 00:05:42,679 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-12 00:05:42,679 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-12 00:05:42,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-12 00:05:42,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-12 00:05:42,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-12 00:05:42,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-12 00:05:42,682 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-12 00:05:42,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-12 00:05:42,682 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-12 00:05:42,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-12 00:05:42,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-12 00:05:42,683 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-12 00:05:42,683 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-12 00:05:42,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-12 00:05:42,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-12 00:05:42,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-12 00:05:42,684 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-12 00:05:42,684 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-12 00:05:42,684 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-12 00:05:42,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-12 00:05:42,684 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-12 00:05:42,685 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-12 00:05:42,685 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-12 00:05:42,685 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-12 00:05:43,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-12 00:05:43,118 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-12 00:05:43,122 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-12 00:05:43,124 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-12 00:05:43,125 INFO L275 PluginConnector]: CDTParser initialized [2020-09-12 00:05:43,126 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i [2020-09-12 00:05:43,209 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e464c224a/951366763d204014b965d0f19e523125/FLAG8b40a4ed6 [2020-09-12 00:05:43,774 INFO L306 CDTParser]: Found 1 translation units. [2020-09-12 00:05:43,775 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i [2020-09-12 00:05:43,792 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e464c224a/951366763d204014b965d0f19e523125/FLAG8b40a4ed6 [2020-09-12 00:05:44,063 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e464c224a/951366763d204014b965d0f19e523125 [2020-09-12 00:05:44,080 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-12 00:05:44,087 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-12 00:05:44,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-12 00:05:44,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-12 00:05:44,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-12 00:05:44,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 12:05:44" (1/1) ... [2020-09-12 00:05:44,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33061b66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:05:44, skipping insertion in model container [2020-09-12 00:05:44,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 12:05:44" (1/1) ... [2020-09-12 00:05:44,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-12 00:05:44,185 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-12 00:05:44,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-12 00:05:44,708 INFO L203 MainTranslator]: Completed pre-run [2020-09-12 00:05:44,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-12 00:05:44,865 INFO L208 MainTranslator]: Completed translation [2020-09-12 00:05:44,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:05:44 WrapperNode [2020-09-12 00:05:44,867 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-12 00:05:44,867 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-12 00:05:44,868 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-12 00:05:44,868 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-12 00:05:44,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:05:44" (1/1) ... [2020-09-12 00:05:44,900 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:05:44" (1/1) ... [2020-09-12 00:05:44,925 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-12 00:05:44,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-12 00:05:44,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-12 00:05:44,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-12 00:05:44,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:05:44" (1/1) ... [2020-09-12 00:05:44,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:05:44" (1/1) ... [2020-09-12 00:05:44,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:05:44" (1/1) ... [2020-09-12 00:05:44,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:05:44" (1/1) ... [2020-09-12 00:05:44,945 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:05:44" (1/1) ... [2020-09-12 00:05:44,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:05:44" (1/1) ... [2020-09-12 00:05:44,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:05:44" (1/1) ... [2020-09-12 00:05:44,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-12 00:05:44,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-12 00:05:44,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-12 00:05:44,955 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-12 00:05:44,956 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:05:44" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-12 00:05:45,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-12 00:05:45,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-12 00:05:45,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-12 00:05:45,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-12 00:05:45,041 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-12 00:05:45,042 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-12 00:05:45,042 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-12 00:05:45,042 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-12 00:05:45,042 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-12 00:05:45,042 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-12 00:05:45,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-12 00:05:45,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-12 00:05:45,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-12 00:05:45,045 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-12 00:05:45,446 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-12 00:05:45,446 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-12 00:05:45,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 12:05:45 BoogieIcfgContainer [2020-09-12 00:05:45,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-12 00:05:45,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-12 00:05:45,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-12 00:05:45,458 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-12 00:05:45,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 12:05:44" (1/3) ... [2020-09-12 00:05:45,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488ed112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 12:05:45, skipping insertion in model container [2020-09-12 00:05:45,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:05:44" (2/3) ... [2020-09-12 00:05:45,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488ed112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 12:05:45, skipping insertion in model container [2020-09-12 00:05:45,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 12:05:45" (3/3) ... [2020-09-12 00:05:45,463 INFO L109 eAbstractionObserver]: Analyzing ICFG safe030_tso.oepc.i [2020-09-12 00:05:45,475 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-12 00:05:45,476 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-12 00:05:45,487 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-12 00:05:45,488 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-12 00:05:45,521 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:05:45,521 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:05:45,521 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:05:45,522 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:05:45,522 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:05:45,522 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:05:45,523 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:05:45,523 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:05:45,523 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:05:45,524 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:05:45,524 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:05:45,524 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:05:45,525 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:05:45,525 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:05:45,525 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:05:45,526 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:05:45,526 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:05:45,526 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:05:45,531 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:05:45,532 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:05:45,532 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:05:45,532 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:05:45,543 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:05:45,543 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:05:45,544 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:05:45,544 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:05:45,548 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:05:45,549 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:05:45,549 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:05:45,549 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:05:45,573 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-12 00:05:45,600 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-12 00:05:45,600 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-12 00:05:45,601 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-12 00:05:45,601 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-12 00:05:45,601 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-12 00:05:45,601 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-12 00:05:45,601 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-12 00:05:45,602 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-12 00:05:45,619 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-09-12 00:05:45,621 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-09-12 00:05:45,667 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-09-12 00:05:45,668 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-12 00:05:45,674 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-12 00:05:45,677 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-09-12 00:05:45,698 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-09-12 00:05:45,698 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-12 00:05:45,699 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-12 00:05:45,701 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-12 00:05:45,702 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-12 00:05:46,921 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2202 [2020-09-12 00:05:46,922 INFO L214 etLargeBlockEncoding]: Total number of compositions: 55 [2020-09-12 00:05:46,927 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-09-12 00:05:46,963 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-09-12 00:05:46,966 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-09-12 00:05:46,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-12 00:05:46,976 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:05:46,977 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:05:46,978 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:05:46,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:05:46,985 INFO L82 PathProgramCache]: Analyzing trace with hash -346907981, now seen corresponding path program 1 times [2020-09-12 00:05:47,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:05:47,022 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695270337] [2020-09-12 00:05:47,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:05:47,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:05:47,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:05:47,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695270337] [2020-09-12 00:05:47,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:05:47,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-12 00:05:47,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1805541029] [2020-09-12 00:05:47,243 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:05:47,247 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:05:47,264 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-12 00:05:47,264 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:05:47,267 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:05:47,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-12 00:05:47,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:05:47,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-12 00:05:47,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-12 00:05:47,290 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-09-12 00:05:47,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:05:47,319 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-09-12 00:05:47,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-12 00:05:47,324 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-09-12 00:05:47,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:05:47,343 INFO L225 Difference]: With dead ends: 362 [2020-09-12 00:05:47,343 INFO L226 Difference]: Without dead ends: 298 [2020-09-12 00:05:47,345 INFO L675 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 [2020-09-12 00:05:47,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-12 00:05:47,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-09-12 00:05:47,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-09-12 00:05:47,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-09-12 00:05:47,432 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-09-12 00:05:47,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:05:47,434 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-09-12 00:05:47,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-12 00:05:47,434 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-09-12 00:05:47,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-12 00:05:47,435 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:05:47,436 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:05:47,436 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-12 00:05:47,436 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:05:47,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:05:47,437 INFO L82 PathProgramCache]: Analyzing trace with hash 2130750683, now seen corresponding path program 1 times [2020-09-12 00:05:47,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:05:47,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966325516] [2020-09-12 00:05:47,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:05:47,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:05:47,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:05:47,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966325516] [2020-09-12 00:05:47,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:05:47,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-12 00:05:47,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1224589934] [2020-09-12 00:05:47,577 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:05:47,578 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:05:47,580 INFO L274 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-09-12 00:05:47,580 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:05:47,580 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:05:47,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-12 00:05:47,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:05:47,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-12 00:05:47,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-12 00:05:47,583 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-09-12 00:05:47,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:05:47,602 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-09-12 00:05:47,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-12 00:05:47,603 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-09-12 00:05:47,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:05:47,606 INFO L225 Difference]: With dead ends: 217 [2020-09-12 00:05:47,606 INFO L226 Difference]: Without dead ends: 217 [2020-09-12 00:05:47,607 INFO L675 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 [2020-09-12 00:05:47,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-09-12 00:05:47,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-09-12 00:05:47,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-09-12 00:05:47,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-09-12 00:05:47,626 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-09-12 00:05:47,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:05:47,627 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-09-12 00:05:47,627 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-12 00:05:47,627 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-09-12 00:05:47,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-12 00:05:47,629 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:05:47,629 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:05:47,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-12 00:05:47,629 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:05:47,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:05:47,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1087116204, now seen corresponding path program 1 times [2020-09-12 00:05:47,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:05:47,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229806471] [2020-09-12 00:05:47,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:05:47,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:05:47,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:05:47,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229806471] [2020-09-12 00:05:47,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:05:47,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-12 00:05:47,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [180426656] [2020-09-12 00:05:47,712 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:05:47,714 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:05:47,716 INFO L274 McrAutomatonBuilder]: Finished intersection with 13 states and 12 transitions. [2020-09-12 00:05:47,717 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:05:47,717 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:05:47,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-12 00:05:47,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:05:47,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-12 00:05:47,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-12 00:05:47,718 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-09-12 00:05:47,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:05:47,750 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-09-12 00:05:47,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-12 00:05:47,751 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-12 00:05:47,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:05:47,752 INFO L225 Difference]: With dead ends: 136 [2020-09-12 00:05:47,753 INFO L226 Difference]: Without dead ends: 136 [2020-09-12 00:05:47,753 INFO L675 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 [2020-09-12 00:05:47,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-09-12 00:05:47,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-09-12 00:05:47,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-09-12 00:05:47,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-09-12 00:05:47,763 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-09-12 00:05:47,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:05:47,763 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-09-12 00:05:47,763 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-12 00:05:47,763 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-09-12 00:05:47,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-12 00:05:47,765 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:05:47,765 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:05:47,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-12 00:05:47,766 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:05:47,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:05:47,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1427017344, now seen corresponding path program 1 times [2020-09-12 00:05:47,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:05:47,767 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126783507] [2020-09-12 00:05:47,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:05:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:05:47,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:05:47,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126783507] [2020-09-12 00:05:47,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:05:47,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-12 00:05:47,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [974183342] [2020-09-12 00:05:47,851 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:05:47,852 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:05:47,856 INFO L274 McrAutomatonBuilder]: Finished intersection with 34 states and 50 transitions. [2020-09-12 00:05:47,856 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:05:48,050 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:05:48,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-12 00:05:48,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:05:48,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-12 00:05:48,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-09-12 00:05:48,051 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-09-12 00:05:48,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:05:48,080 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-09-12 00:05:48,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-12 00:05:48,080 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-09-12 00:05:48,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:05:48,081 INFO L225 Difference]: With dead ends: 109 [2020-09-12 00:05:48,081 INFO L226 Difference]: Without dead ends: 109 [2020-09-12 00:05:48,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-09-12 00:05:48,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-09-12 00:05:48,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-09-12 00:05:48,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-09-12 00:05:48,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-09-12 00:05:48,089 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-09-12 00:05:48,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:05:48,089 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-09-12 00:05:48,089 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-12 00:05:48,089 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-09-12 00:05:48,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-12 00:05:48,091 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:05:48,091 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:05:48,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-12 00:05:48,092 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:05:48,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:05:48,092 INFO L82 PathProgramCache]: Analyzing trace with hash 68730238, now seen corresponding path program 1 times [2020-09-12 00:05:48,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:05:48,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981591614] [2020-09-12 00:05:48,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:05:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:05:48,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:05:48,190 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981591614] [2020-09-12 00:05:48,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:05:48,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-12 00:05:48,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [315958612] [2020-09-12 00:05:48,191 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:05:48,193 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:05:48,203 INFO L274 McrAutomatonBuilder]: Finished intersection with 77 states and 141 transitions. [2020-09-12 00:05:48,203 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:05:48,224 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:05:48,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-12 00:05:48,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:05:48,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-12 00:05:48,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-12 00:05:48,226 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 4 states. [2020-09-12 00:05:48,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:05:48,251 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-09-12 00:05:48,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-12 00:05:48,252 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-09-12 00:05:48,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:05:48,253 INFO L225 Difference]: With dead ends: 135 [2020-09-12 00:05:48,253 INFO L226 Difference]: Without dead ends: 85 [2020-09-12 00:05:48,253 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-12 00:05:48,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-09-12 00:05:48,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-09-12 00:05:48,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-12 00:05:48,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 177 transitions. [2020-09-12 00:05:48,258 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 177 transitions. Word has length 18 [2020-09-12 00:05:48,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:05:48,258 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 177 transitions. [2020-09-12 00:05:48,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-12 00:05:48,259 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-09-12 00:05:48,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-12 00:05:48,260 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:05:48,260 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:05:48,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-12 00:05:48,260 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:05:48,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:05:48,261 INFO L82 PathProgramCache]: Analyzing trace with hash 225033754, now seen corresponding path program 2 times [2020-09-12 00:05:48,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:05:48,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100146589] [2020-09-12 00:05:48,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:05:48,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:05:48,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:05:48,331 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100146589] [2020-09-12 00:05:48,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:05:48,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-12 00:05:48,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1462013285] [2020-09-12 00:05:48,332 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:05:48,334 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:05:48,345 INFO L274 McrAutomatonBuilder]: Finished intersection with 79 states and 141 transitions. [2020-09-12 00:05:48,345 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:05:48,358 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:05:48,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-12 00:05:48,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:05:48,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-12 00:05:48,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-12 00:05:48,359 INFO L87 Difference]: Start difference. First operand 85 states and 177 transitions. Second operand 4 states. [2020-09-12 00:05:48,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:05:48,394 INFO L93 Difference]: Finished difference Result 99 states and 199 transitions. [2020-09-12 00:05:48,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-12 00:05:48,395 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-09-12 00:05:48,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:05:48,396 INFO L225 Difference]: With dead ends: 99 [2020-09-12 00:05:48,396 INFO L226 Difference]: Without dead ends: 37 [2020-09-12 00:05:48,396 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-12 00:05:48,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-09-12 00:05:48,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-09-12 00:05:48,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-09-12 00:05:48,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-09-12 00:05:48,399 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-09-12 00:05:48,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:05:48,399 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-09-12 00:05:48,399 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-12 00:05:48,399 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-09-12 00:05:48,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-12 00:05:48,400 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:05:48,400 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:05:48,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-12 00:05:48,401 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:05:48,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:05:48,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1816005352, now seen corresponding path program 3 times [2020-09-12 00:05:48,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:05:48,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772634289] [2020-09-12 00:05:48,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:05:48,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:05:48,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:05:48,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772634289] [2020-09-12 00:05:48,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:05:48,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-12 00:05:48,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [381300298] [2020-09-12 00:05:48,471 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:05:48,474 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:05:48,485 INFO L274 McrAutomatonBuilder]: Finished intersection with 77 states and 138 transitions. [2020-09-12 00:05:48,486 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:05:48,500 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:05:48,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-12 00:05:48,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:05:48,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-12 00:05:48,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-12 00:05:48,505 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 4 states. [2020-09-12 00:05:48,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:05:48,528 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-09-12 00:05:48,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-12 00:05:48,528 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-09-12 00:05:48,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:05:48,529 INFO L225 Difference]: With dead ends: 36 [2020-09-12 00:05:48,529 INFO L226 Difference]: Without dead ends: 0 [2020-09-12 00:05:48,529 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-12 00:05:48,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-12 00:05:48,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-12 00:05:48,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-12 00:05:48,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-12 00:05:48,531 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-09-12 00:05:48,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:05:48,532 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-12 00:05:48,532 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-12 00:05:48,532 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-12 00:05:48,532 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-12 00:05:48,533 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-12 00:05:48,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.09 12:05:48 BasicIcfg [2020-09-12 00:05:48,543 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-12 00:05:48,547 INFO L168 Benchmark]: Toolchain (without parser) took 4463.15 ms. Allocated memory was 141.6 MB in the beginning and 245.9 MB in the end (delta: 104.3 MB). Free memory was 102.1 MB in the beginning and 189.6 MB in the end (delta: -87.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. [2020-09-12 00:05:48,553 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.4 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-09-12 00:05:48,554 INFO L168 Benchmark]: CACSL2BoogieTranslator took 775.81 ms. Allocated memory was 141.6 MB in the beginning and 205.5 MB in the end (delta: 64.0 MB). Free memory was 101.2 MB in the beginning and 162.2 MB in the end (delta: -60.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-09-12 00:05:48,555 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.40 ms. Allocated memory is still 205.5 MB. Free memory was 162.2 MB in the beginning and 160.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-12 00:05:48,556 INFO L168 Benchmark]: Boogie Preprocessor took 29.11 ms. Allocated memory is still 205.5 MB. Free memory was 160.3 MB in the beginning and 158.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-12 00:05:48,562 INFO L168 Benchmark]: RCFGBuilder took 497.60 ms. Allocated memory is still 205.5 MB. Free memory was 158.4 MB in the beginning and 136.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-09-12 00:05:48,563 INFO L168 Benchmark]: TraceAbstraction took 3089.24 ms. Allocated memory was 205.5 MB in the beginning and 245.9 MB in the end (delta: 40.4 MB). Free memory was 136.5 MB in the beginning and 189.6 MB in the end (delta: -53.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-12 00:05:48,569 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.4 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 775.81 ms. Allocated memory was 141.6 MB in the beginning and 205.5 MB in the end (delta: 64.0 MB). Free memory was 101.2 MB in the beginning and 162.2 MB in the end (delta: -60.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 57.40 ms. Allocated memory is still 205.5 MB. Free memory was 162.2 MB in the beginning and 160.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.11 ms. Allocated memory is still 205.5 MB. Free memory was 160.3 MB in the beginning and 158.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 497.60 ms. Allocated memory is still 205.5 MB. Free memory was 158.4 MB in the beginning and 136.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3089.24 ms. Allocated memory was 205.5 MB in the beginning and 245.9 MB in the end (delta: 40.4 MB). Free memory was 136.5 MB in the beginning and 189.6 MB in the end (delta: -53.2 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: 1.3s, 76 ProgramPointsBefore, 32 ProgramPointsAfterwards, 68 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 12 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 655 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2202 CheckedPairsTotal, 55 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, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 128 SDtfs, 67 SDslu, 157 SDs, 0 SdLazy, 49 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 364 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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, 7 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, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 2420 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...