/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-14 23:34:33,594 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-14 23:34:33,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-14 23:34:33,624 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-14 23:34:33,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-14 23:34:33,625 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-14 23:34:33,627 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-14 23:34:33,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-14 23:34:33,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-14 23:34:33,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-14 23:34:33,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-14 23:34:33,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-14 23:34:33,633 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-14 23:34:33,634 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-14 23:34:33,636 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-14 23:34:33,638 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-14 23:34:33,639 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-14 23:34:33,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-14 23:34:33,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-14 23:34:33,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-14 23:34:33,653 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-14 23:34:33,654 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-14 23:34:33,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-14 23:34:33,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-14 23:34:33,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-14 23:34:33,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-14 23:34:33,670 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-14 23:34:33,671 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-14 23:34:33,673 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-14 23:34:33,674 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-14 23:34:33,674 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-14 23:34:33,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-14 23:34:33,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-14 23:34:33,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-14 23:34:33,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-14 23:34:33,679 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-14 23:34:33,679 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-14 23:34:33,737 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-14 23:34:33,737 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-14 23:34:33,738 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-14 23:34:33,743 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-14 23:34:33,743 INFO L138 SettingsManager]: * Use SBE=true [2020-09-14 23:34:33,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-14 23:34:33,743 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-14 23:34:33,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-14 23:34:33,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-14 23:34:33,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-14 23:34:33,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-14 23:34:33,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-14 23:34:33,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-14 23:34:33,745 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-14 23:34:33,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-14 23:34:33,745 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-14 23:34:33,745 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-14 23:34:33,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-14 23:34:33,747 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-14 23:34:33,747 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-14 23:34:33,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-14 23:34:33,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-14 23:34:33,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-14 23:34:33,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-14 23:34:33,748 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-14 23:34:33,749 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-14 23:34:33,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-14 23:34:33,749 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-14 23:34:33,749 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-14 23:34:33,749 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-14 23:34:34,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-14 23:34:34,231 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-14 23:34:34,236 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-14 23:34:34,237 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-14 23:34:34,238 INFO L275 PluginConnector]: CDTParser initialized [2020-09-14 23:34:34,239 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2020-09-14 23:34:34,312 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/27159ddd9/57a997f7b92f410f96698cce94987135/FLAG877cd7553 [2020-09-14 23:34:34,901 INFO L306 CDTParser]: Found 1 translation units. [2020-09-14 23:34:34,902 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2020-09-14 23:34:34,919 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/27159ddd9/57a997f7b92f410f96698cce94987135/FLAG877cd7553 [2020-09-14 23:34:35,170 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/27159ddd9/57a997f7b92f410f96698cce94987135 [2020-09-14 23:34:35,184 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-14 23:34:35,192 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-14 23:34:35,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-14 23:34:35,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-14 23:34:35,200 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-14 23:34:35,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 11:34:35" (1/1) ... [2020-09-14 23:34:35,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74192949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:34:35, skipping insertion in model container [2020-09-14 23:34:35,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 11:34:35" (1/1) ... [2020-09-14 23:34:35,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-14 23:34:35,293 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-14 23:34:35,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-14 23:34:35,847 INFO L203 MainTranslator]: Completed pre-run [2020-09-14 23:34:35,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-14 23:34:36,008 INFO L208 MainTranslator]: Completed translation [2020-09-14 23:34:36,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:34:36 WrapperNode [2020-09-14 23:34:36,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-14 23:34:36,010 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-14 23:34:36,010 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-14 23:34:36,010 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-14 23:34:36,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:34:36" (1/1) ... [2020-09-14 23:34:36,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:34:36" (1/1) ... [2020-09-14 23:34:36,069 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-14 23:34:36,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-14 23:34:36,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-14 23:34:36,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-14 23:34:36,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:34:36" (1/1) ... [2020-09-14 23:34:36,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:34:36" (1/1) ... [2020-09-14 23:34:36,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:34:36" (1/1) ... [2020-09-14 23:34:36,086 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:34:36" (1/1) ... [2020-09-14 23:34:36,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:34:36" (1/1) ... [2020-09-14 23:34:36,097 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:34:36" (1/1) ... [2020-09-14 23:34:36,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:34:36" (1/1) ... [2020-09-14 23:34:36,103 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-14 23:34:36,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-14 23:34:36,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-14 23:34:36,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-14 23:34:36,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:34:36" (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 [2020-09-14 23:34:36,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-14 23:34:36,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-14 23:34:36,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-14 23:34:36,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-14 23:34:36,201 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-14 23:34:36,201 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-14 23:34:36,201 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-14 23:34:36,202 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-14 23:34:36,202 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-14 23:34:36,203 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-14 23:34:36,203 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-09-14 23:34:36,203 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-09-14 23:34:36,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-14 23:34:36,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-14 23:34:36,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-14 23:34:36,206 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-14 23:34:36,649 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-14 23:34:36,649 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-14 23:34:36,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 11:34:36 BoogieIcfgContainer [2020-09-14 23:34:36,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-14 23:34:36,664 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-14 23:34:36,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-14 23:34:36,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-14 23:34:36,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 11:34:35" (1/3) ... [2020-09-14 23:34:36,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6128bf6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 11:34:36, skipping insertion in model container [2020-09-14 23:34:36,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 11:34:36" (2/3) ... [2020-09-14 23:34:36,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6128bf6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 11:34:36, skipping insertion in model container [2020-09-14 23:34:36,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 11:34:36" (3/3) ... [2020-09-14 23:34:36,676 INFO L109 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc.i [2020-09-14 23:34:36,687 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-14 23:34:36,688 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-14 23:34:36,698 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-14 23:34:36,699 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-14 23:34:36,731 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,732 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,732 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,732 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,733 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,733 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,734 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,734 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,734 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,734 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,735 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,735 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,735 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,736 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,736 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,736 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,736 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,737 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,737 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,737 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,738 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,738 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,738 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,739 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,743 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,743 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,744 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,744 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,752 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,752 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,752 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,753 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,756 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,757 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,757 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,757 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,759 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,760 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,760 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,760 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 23:34:36,781 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-14 23:34:36,805 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-14 23:34:36,805 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-14 23:34:36,805 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-14 23:34:36,805 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-14 23:34:36,806 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-14 23:34:36,806 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-14 23:34:36,806 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-14 23:34:36,806 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-14 23:34:36,825 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 82 transitions, 184 flow [2020-09-14 23:34:36,827 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-09-14 23:34:36,880 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-09-14 23:34:36,881 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-14 23:34:36,888 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-09-14 23:34:36,891 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-09-14 23:34:36,920 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-09-14 23:34:36,921 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-14 23:34:36,922 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-09-14 23:34:36,924 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-09-14 23:34:36,926 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-14 23:34:38,772 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2807 [2020-09-14 23:34:38,772 INFO L214 etLargeBlockEncoding]: Total number of compositions: 63 [2020-09-14 23:34:38,778 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-09-14 23:34:38,857 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-09-14 23:34:38,860 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-09-14 23:34:38,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-14 23:34:38,874 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:34:38,875 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:34:38,876 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:34:38,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:34:38,884 INFO L82 PathProgramCache]: Analyzing trace with hash 91051740, now seen corresponding path program 1 times [2020-09-14 23:34:38,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:34:38,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629233717] [2020-09-14 23:34:38,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:34:39,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:34:39,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:34:39,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629233717] [2020-09-14 23:34:39,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:34:39,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-14 23:34:39,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562954852] [2020-09-14 23:34:39,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-14 23:34:39,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:34:39,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-14 23:34:39,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-14 23:34:39,168 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-09-14 23:34:39,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:34:39,223 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-09-14 23:34:39,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-14 23:34:39,224 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-09-14 23:34:39,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:34:39,257 INFO L225 Difference]: With dead ends: 850 [2020-09-14 23:34:39,258 INFO L226 Difference]: Without dead ends: 706 [2020-09-14 23:34:39,260 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 [2020-09-14 23:34:39,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-09-14 23:34:39,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-09-14 23:34:39,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-09-14 23:34:39,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-09-14 23:34:39,386 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-09-14 23:34:39,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:34:39,388 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-09-14 23:34:39,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-14 23:34:39,392 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-09-14 23:34:39,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-14 23:34:39,397 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:34:39,402 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:34:39,403 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-14 23:34:39,403 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:34:39,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:34:39,404 INFO L82 PathProgramCache]: Analyzing trace with hash -1472387704, now seen corresponding path program 1 times [2020-09-14 23:34:39,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:34:39,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959230860] [2020-09-14 23:34:39,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:34:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:34:39,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:34:39,606 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959230860] [2020-09-14 23:34:39,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:34:39,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-14 23:34:39,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877796458] [2020-09-14 23:34:39,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-14 23:34:39,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:34:39,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-14 23:34:39,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-14 23:34:39,609 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-09-14 23:34:39,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:34:39,654 INFO L93 Difference]: Finished difference Result 778 states and 2592 transitions. [2020-09-14 23:34:39,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-14 23:34:39,654 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-14 23:34:39,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:34:39,660 INFO L225 Difference]: With dead ends: 778 [2020-09-14 23:34:39,661 INFO L226 Difference]: Without dead ends: 634 [2020-09-14 23:34:39,662 INFO L675 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 [2020-09-14 23:34:39,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-09-14 23:34:39,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2020-09-14 23:34:39,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-09-14 23:34:39,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2148 transitions. [2020-09-14 23:34:39,688 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2148 transitions. Word has length 11 [2020-09-14 23:34:39,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:34:39,688 INFO L479 AbstractCegarLoop]: Abstraction has 634 states and 2148 transitions. [2020-09-14 23:34:39,688 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-14 23:34:39,688 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2148 transitions. [2020-09-14 23:34:39,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-14 23:34:39,691 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:34:39,691 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:34:39,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-14 23:34:39,692 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:34:39,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:34:39,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1607812272, now seen corresponding path program 1 times [2020-09-14 23:34:39,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:34:39,693 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214364186] [2020-09-14 23:34:39,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:34:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:34:39,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:34:39,785 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214364186] [2020-09-14 23:34:39,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:34:39,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-14 23:34:39,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982262109] [2020-09-14 23:34:39,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-14 23:34:39,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:34:39,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-14 23:34:39,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-14 23:34:39,788 INFO L87 Difference]: Start difference. First operand 634 states and 2148 transitions. Second operand 5 states. [2020-09-14 23:34:39,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:34:39,884 INFO L93 Difference]: Finished difference Result 862 states and 2843 transitions. [2020-09-14 23:34:39,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-14 23:34:39,884 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-14 23:34:39,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:34:39,889 INFO L225 Difference]: With dead ends: 862 [2020-09-14 23:34:39,890 INFO L226 Difference]: Without dead ends: 466 [2020-09-14 23:34:39,890 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-14 23:34:39,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-09-14 23:34:39,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2020-09-14 23:34:39,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2020-09-14 23:34:39,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 1482 transitions. [2020-09-14 23:34:39,913 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 1482 transitions. Word has length 12 [2020-09-14 23:34:39,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:34:39,914 INFO L479 AbstractCegarLoop]: Abstraction has 466 states and 1482 transitions. [2020-09-14 23:34:39,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-14 23:34:39,914 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 1482 transitions. [2020-09-14 23:34:39,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-14 23:34:39,917 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:34:39,917 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:34:39,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-14 23:34:39,918 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:34:39,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:34:39,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1203540713, now seen corresponding path program 1 times [2020-09-14 23:34:39,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:34:39,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100713488] [2020-09-14 23:34:39,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:34:39,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:34:40,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:34:40,009 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100713488] [2020-09-14 23:34:40,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:34:40,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-14 23:34:40,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589109194] [2020-09-14 23:34:40,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-14 23:34:40,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:34:40,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-14 23:34:40,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-14 23:34:40,011 INFO L87 Difference]: Start difference. First operand 466 states and 1482 transitions. Second operand 4 states. [2020-09-14 23:34:40,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:34:40,032 INFO L93 Difference]: Finished difference Result 502 states and 1548 transitions. [2020-09-14 23:34:40,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-14 23:34:40,033 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-14 23:34:40,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:34:40,036 INFO L225 Difference]: With dead ends: 502 [2020-09-14 23:34:40,036 INFO L226 Difference]: Without dead ends: 430 [2020-09-14 23:34:40,037 INFO L675 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 [2020-09-14 23:34:40,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2020-09-14 23:34:40,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2020-09-14 23:34:40,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2020-09-14 23:34:40,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 1344 transitions. [2020-09-14 23:34:40,051 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 1344 transitions. Word has length 13 [2020-09-14 23:34:40,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:34:40,051 INFO L479 AbstractCegarLoop]: Abstraction has 430 states and 1344 transitions. [2020-09-14 23:34:40,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-14 23:34:40,051 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 1344 transitions. [2020-09-14 23:34:40,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-14 23:34:40,053 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:34:40,053 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:34:40,053 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-14 23:34:40,053 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:34:40,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:34:40,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1251334402, now seen corresponding path program 1 times [2020-09-14 23:34:40,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:34:40,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052713356] [2020-09-14 23:34:40,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:34:40,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:34:40,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:34:40,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052713356] [2020-09-14 23:34:40,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:34:40,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-14 23:34:40,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309008972] [2020-09-14 23:34:40,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-14 23:34:40,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:34:40,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-14 23:34:40,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-14 23:34:40,144 INFO L87 Difference]: Start difference. First operand 430 states and 1344 transitions. Second operand 5 states. [2020-09-14 23:34:40,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:34:40,227 INFO L93 Difference]: Finished difference Result 556 states and 1707 transitions. [2020-09-14 23:34:40,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-14 23:34:40,227 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-14 23:34:40,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:34:40,230 INFO L225 Difference]: With dead ends: 556 [2020-09-14 23:34:40,230 INFO L226 Difference]: Without dead ends: 262 [2020-09-14 23:34:40,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-14 23:34:40,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-09-14 23:34:40,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-09-14 23:34:40,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-09-14 23:34:40,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 771 transitions. [2020-09-14 23:34:40,239 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 771 transitions. Word has length 14 [2020-09-14 23:34:40,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:34:40,240 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 771 transitions. [2020-09-14 23:34:40,240 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-14 23:34:40,240 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 771 transitions. [2020-09-14 23:34:40,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-14 23:34:40,241 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:34:40,241 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:34:40,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-14 23:34:40,242 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:34:40,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:34:40,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1257194017, now seen corresponding path program 1 times [2020-09-14 23:34:40,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:34:40,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211993962] [2020-09-14 23:34:40,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:34:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:34:40,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:34:40,337 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211993962] [2020-09-14 23:34:40,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:34:40,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-14 23:34:40,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550367194] [2020-09-14 23:34:40,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-14 23:34:40,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:34:40,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-14 23:34:40,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-14 23:34:40,339 INFO L87 Difference]: Start difference. First operand 262 states and 771 transitions. Second operand 4 states. [2020-09-14 23:34:40,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:34:40,392 INFO L93 Difference]: Finished difference Result 319 states and 873 transitions. [2020-09-14 23:34:40,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-14 23:34:40,394 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-09-14 23:34:40,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:34:40,397 INFO L225 Difference]: With dead ends: 319 [2020-09-14 23:34:40,397 INFO L226 Difference]: Without dead ends: 238 [2020-09-14 23:34:40,397 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-14 23:34:40,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-09-14 23:34:40,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2020-09-14 23:34:40,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-09-14 23:34:40,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 659 transitions. [2020-09-14 23:34:40,411 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 659 transitions. Word has length 15 [2020-09-14 23:34:40,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:34:40,412 INFO L479 AbstractCegarLoop]: Abstraction has 238 states and 659 transitions. [2020-09-14 23:34:40,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-14 23:34:40,412 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 659 transitions. [2020-09-14 23:34:40,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-14 23:34:40,413 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:34:40,414 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:34:40,414 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-14 23:34:40,414 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:34:40,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:34:40,414 INFO L82 PathProgramCache]: Analyzing trace with hash -857649028, now seen corresponding path program 1 times [2020-09-14 23:34:40,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:34:40,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780285657] [2020-09-14 23:34:40,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:34:40,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:34:40,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:34:40,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780285657] [2020-09-14 23:34:40,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:34:40,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-14 23:34:40,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484441236] [2020-09-14 23:34:40,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-14 23:34:40,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:34:40,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-14 23:34:40,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-14 23:34:40,556 INFO L87 Difference]: Start difference. First operand 238 states and 659 transitions. Second operand 5 states. [2020-09-14 23:34:40,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:34:40,625 INFO L93 Difference]: Finished difference Result 247 states and 617 transitions. [2020-09-14 23:34:40,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-14 23:34:40,626 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-14 23:34:40,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:34:40,627 INFO L225 Difference]: With dead ends: 247 [2020-09-14 23:34:40,628 INFO L226 Difference]: Without dead ends: 182 [2020-09-14 23:34:40,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-14 23:34:40,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-09-14 23:34:40,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-09-14 23:34:40,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-14 23:34:40,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 443 transitions. [2020-09-14 23:34:40,636 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 443 transitions. Word has length 16 [2020-09-14 23:34:40,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:34:40,636 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 443 transitions. [2020-09-14 23:34:40,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-14 23:34:40,636 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 443 transitions. [2020-09-14 23:34:40,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-14 23:34:40,637 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:34:40,637 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:34:40,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-14 23:34:40,638 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:34:40,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:34:40,638 INFO L82 PathProgramCache]: Analyzing trace with hash -981483084, now seen corresponding path program 1 times [2020-09-14 23:34:40,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:34:40,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276562332] [2020-09-14 23:34:40,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:34:40,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:34:40,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:34:40,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276562332] [2020-09-14 23:34:40,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:34:40,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-14 23:34:40,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188708905] [2020-09-14 23:34:40,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-14 23:34:40,789 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:34:40,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-14 23:34:40,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-14 23:34:40,789 INFO L87 Difference]: Start difference. First operand 182 states and 443 transitions. Second operand 6 states. [2020-09-14 23:34:40,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:34:40,860 INFO L93 Difference]: Finished difference Result 165 states and 373 transitions. [2020-09-14 23:34:40,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-14 23:34:40,860 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-09-14 23:34:40,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:34:40,864 INFO L225 Difference]: With dead ends: 165 [2020-09-14 23:34:40,864 INFO L226 Difference]: Without dead ends: 132 [2020-09-14 23:34:40,865 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-14 23:34:40,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-09-14 23:34:40,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-09-14 23:34:40,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-09-14 23:34:40,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 295 transitions. [2020-09-14 23:34:40,875 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 295 transitions. Word has length 17 [2020-09-14 23:34:40,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:34:40,875 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 295 transitions. [2020-09-14 23:34:40,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-14 23:34:40,876 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 295 transitions. [2020-09-14 23:34:40,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-14 23:34:40,876 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:34:40,877 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:34:40,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-14 23:34:40,877 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:34:40,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:34:40,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1311703103, now seen corresponding path program 1 times [2020-09-14 23:34:40,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:34:40,879 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296849745] [2020-09-14 23:34:40,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:34:40,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:34:41,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:34:41,014 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296849745] [2020-09-14 23:34:41,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:34:41,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-14 23:34:41,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767806393] [2020-09-14 23:34:41,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-14 23:34:41,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:34:41,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-14 23:34:41,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-14 23:34:41,018 INFO L87 Difference]: Start difference. First operand 132 states and 295 transitions. Second operand 7 states. [2020-09-14 23:34:41,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:34:41,117 INFO L93 Difference]: Finished difference Result 121 states and 271 transitions. [2020-09-14 23:34:41,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-14 23:34:41,119 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-09-14 23:34:41,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:34:41,120 INFO L225 Difference]: With dead ends: 121 [2020-09-14 23:34:41,120 INFO L226 Difference]: Without dead ends: 112 [2020-09-14 23:34:41,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-14 23:34:41,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-09-14 23:34:41,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-09-14 23:34:41,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-09-14 23:34:41,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 255 transitions. [2020-09-14 23:34:41,125 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 255 transitions. Word has length 19 [2020-09-14 23:34:41,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:34:41,125 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 255 transitions. [2020-09-14 23:34:41,125 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-14 23:34:41,125 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 255 transitions. [2020-09-14 23:34:41,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-14 23:34:41,126 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:34:41,126 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:34:41,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-14 23:34:41,127 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:34:41,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:34:41,127 INFO L82 PathProgramCache]: Analyzing trace with hash 188961609, now seen corresponding path program 1 times [2020-09-14 23:34:41,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:34:41,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431502691] [2020-09-14 23:34:41,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:34:41,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:34:41,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:34:41,220 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431502691] [2020-09-14 23:34:41,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:34:41,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-14 23:34:41,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040723306] [2020-09-14 23:34:41,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-14 23:34:41,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:34:41,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-14 23:34:41,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-14 23:34:41,223 INFO L87 Difference]: Start difference. First operand 112 states and 255 transitions. Second operand 5 states. [2020-09-14 23:34:41,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:34:41,263 INFO L93 Difference]: Finished difference Result 146 states and 329 transitions. [2020-09-14 23:34:41,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-14 23:34:41,264 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-09-14 23:34:41,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:34:41,265 INFO L225 Difference]: With dead ends: 146 [2020-09-14 23:34:41,265 INFO L226 Difference]: Without dead ends: 52 [2020-09-14 23:34:41,265 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-14 23:34:41,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-14 23:34:41,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-09-14 23:34:41,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-09-14 23:34:41,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 98 transitions. [2020-09-14 23:34:41,271 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 98 transitions. Word has length 21 [2020-09-14 23:34:41,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:34:41,271 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 98 transitions. [2020-09-14 23:34:41,271 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-14 23:34:41,271 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2020-09-14 23:34:41,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-14 23:34:41,272 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 23:34:41,272 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 23:34:41,272 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-14 23:34:41,273 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 23:34:41,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 23:34:41,273 INFO L82 PathProgramCache]: Analyzing trace with hash -62971415, now seen corresponding path program 2 times [2020-09-14 23:34:41,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 23:34:41,273 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158586786] [2020-09-14 23:34:41,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 23:34:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 23:34:41,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 23:34:41,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158586786] [2020-09-14 23:34:41,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 23:34:41,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-14 23:34:41,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870306651] [2020-09-14 23:34:41,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-14 23:34:41,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 23:34:41,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-14 23:34:41,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-14 23:34:41,353 INFO L87 Difference]: Start difference. First operand 52 states and 98 transitions. Second operand 5 states. [2020-09-14 23:34:41,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 23:34:41,376 INFO L93 Difference]: Finished difference Result 51 states and 97 transitions. [2020-09-14 23:34:41,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-14 23:34:41,377 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-09-14 23:34:41,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 23:34:41,377 INFO L225 Difference]: With dead ends: 51 [2020-09-14 23:34:41,377 INFO L226 Difference]: Without dead ends: 0 [2020-09-14 23:34:41,378 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-14 23:34:41,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-14 23:34:41,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-14 23:34:41,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-14 23:34:41,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-14 23:34:41,379 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-09-14 23:34:41,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 23:34:41,379 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-14 23:34:41,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-14 23:34:41,379 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-14 23:34:41,379 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-14 23:34:41,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-14 23:34:41,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 11:34:41 BasicIcfg [2020-09-14 23:34:41,384 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-14 23:34:41,388 INFO L168 Benchmark]: Toolchain (without parser) took 6201.19 ms. Allocated memory was 138.4 MB in the beginning and 299.9 MB in the end (delta: 161.5 MB). Free memory was 99.8 MB in the beginning and 226.2 MB in the end (delta: -126.4 MB). Peak memory consumption was 35.1 MB. Max. memory is 7.1 GB. [2020-09-14 23:34:41,389 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-14 23:34:41,390 INFO L168 Benchmark]: CACSL2BoogieTranslator took 813.95 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 99.1 MB in the beginning and 158.6 MB in the end (delta: -59.4 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2020-09-14 23:34:41,390 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.30 ms. Allocated memory is still 201.3 MB. Free memory was 158.6 MB in the beginning and 155.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-14 23:34:41,391 INFO L168 Benchmark]: Boogie Preprocessor took 34.10 ms. Allocated memory is still 201.3 MB. Free memory was 155.9 MB in the beginning and 154.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-14 23:34:41,392 INFO L168 Benchmark]: RCFGBuilder took 558.34 ms. Allocated memory is still 201.3 MB. Free memory was 154.5 MB in the beginning and 130.0 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-09-14 23:34:41,393 INFO L168 Benchmark]: TraceAbstraction took 4720.72 ms. Allocated memory was 201.3 MB in the beginning and 299.9 MB in the end (delta: 98.6 MB). Free memory was 130.0 MB in the beginning and 226.2 MB in the end (delta: -96.2 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-09-14 23:34:41,397 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 813.95 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 99.1 MB in the beginning and 158.6 MB in the end (delta: -59.4 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.30 ms. Allocated memory is still 201.3 MB. Free memory was 158.6 MB in the beginning and 155.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 34.10 ms. Allocated memory is still 201.3 MB. Free memory was 155.9 MB in the beginning and 154.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 558.34 ms. Allocated memory is still 201.3 MB. Free memory was 154.5 MB in the beginning and 130.0 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4720.72 ms. Allocated memory was 201.3 MB in the beginning and 299.9 MB in the end (delta: 98.6 MB). Free memory was 130.0 MB in the beginning and 226.2 MB in the end (delta: -96.2 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.9s, 93 ProgramPointsBefore, 39 ProgramPointsAfterwards, 82 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 945 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2807 CheckedPairsTotal, 63 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.5s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 267 SDtfs, 301 SDslu, 479 SDs, 0 SdLazy, 217 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 6930 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...