/usr/bin/java -Xmx16000000000 -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/safe016_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 18:34:09,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 18:34:09,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 18:34:09,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 18:34:09,706 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 18:34:09,714 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 18:34:09,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 18:34:09,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 18:34:09,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 18:34:09,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 18:34:09,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 18:34:09,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 18:34:09,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 18:34:09,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 18:34:09,736 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 18:34:09,737 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 18:34:09,739 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 18:34:09,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 18:34:09,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 18:34:09,749 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 18:34:09,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 18:34:09,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 18:34:09,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 18:34:09,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 18:34:09,766 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 18:34:09,777 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 18:34:09,778 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 18:34:09,780 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 18:34:09,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 18:34:09,783 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 18:34:09,783 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 18:34:09,784 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 18:34:09,784 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 18:34:09,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 18:34:09,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 18:34:09,786 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 18:34:09,788 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 18:34:09,834 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 18:34:09,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 18:34:09,835 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 18:34:09,835 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 18:34:09,836 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 18:34:09,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 18:34:09,837 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 18:34:09,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 18:34:09,837 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 18:34:09,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 18:34:09,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 18:34:09,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 18:34:09,839 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 18:34:09,839 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 18:34:09,839 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 18:34:09,840 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 18:34:09,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 18:34:09,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 18:34:09,840 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 18:34:09,840 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 18:34:09,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 18:34:09,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:34:09,841 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 18:34:09,841 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 18:34:09,841 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 18:34:09,841 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 18:34:09,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 18:34:09,842 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 18:34:09,842 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 18:34:09,842 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 18:34:10,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 18:34:10,133 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 18:34:10,137 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 18:34:10,138 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 18:34:10,139 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 18:34:10,139 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i [2020-10-15 18:34:10,200 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b76d83642/107a9071a9e04546863026a5d482ddb5/FLAG35bccea00 [2020-10-15 18:34:10,740 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 18:34:10,741 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i [2020-10-15 18:34:10,764 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b76d83642/107a9071a9e04546863026a5d482ddb5/FLAG35bccea00 [2020-10-15 18:34:11,041 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b76d83642/107a9071a9e04546863026a5d482ddb5 [2020-10-15 18:34:11,049 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 18:34:11,051 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 18:34:11,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 18:34:11,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 18:34:11,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 18:34:11,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:34:11" (1/1) ... [2020-10-15 18:34:11,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d5937ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:11, skipping insertion in model container [2020-10-15 18:34:11,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:34:11" (1/1) ... [2020-10-15 18:34:11,067 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 18:34:11,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 18:34:11,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:34:11,595 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 18:34:11,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:34:11,732 INFO L208 MainTranslator]: Completed translation [2020-10-15 18:34:11,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:11 WrapperNode [2020-10-15 18:34:11,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 18:34:11,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 18:34:11,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 18:34:11,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 18:34:11,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:11" (1/1) ... [2020-10-15 18:34:11,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:11" (1/1) ... [2020-10-15 18:34:11,827 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 18:34:11,828 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 18:34:11,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 18:34:11,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 18:34:11,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:11" (1/1) ... [2020-10-15 18:34:11,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:11" (1/1) ... [2020-10-15 18:34:11,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:11" (1/1) ... [2020-10-15 18:34:11,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:11" (1/1) ... [2020-10-15 18:34:11,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:11" (1/1) ... [2020-10-15 18:34:11,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:11" (1/1) ... [2020-10-15 18:34:11,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:11" (1/1) ... [2020-10-15 18:34:11,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 18:34:11,857 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 18:34:11,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 18:34:11,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 18:34:11,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:34:11,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 18:34:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 18:34:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 18:34:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 18:34:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 18:34:11,928 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 18:34:11,928 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 18:34:11,929 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 18:34:11,929 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 18:34:11,929 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 18:34:11,929 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-15 18:34:11,929 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-15 18:34:11,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 18:34:11,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 18:34:11,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 18:34:11,932 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 18:34:12,317 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 18:34:12,318 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 18:34:12,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:34:12 BoogieIcfgContainer [2020-10-15 18:34:12,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 18:34:12,322 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 18:34:12,322 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 18:34:12,325 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 18:34:12,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:34:11" (1/3) ... [2020-10-15 18:34:12,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f8cf26f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:34:12, skipping insertion in model container [2020-10-15 18:34:12,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:34:11" (2/3) ... [2020-10-15 18:34:12,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f8cf26f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:34:12, skipping insertion in model container [2020-10-15 18:34:12,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:34:12" (3/3) ... [2020-10-15 18:34:12,330 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_pso.opt.i [2020-10-15 18:34:12,343 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 18:34:12,343 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 18:34:12,351 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 18:34:12,352 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 18:34:12,382 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,383 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,383 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,383 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,384 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,384 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,385 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,385 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,385 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,385 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,386 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,386 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,386 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,387 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,387 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,387 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,387 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,388 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,388 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,388 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,388 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,388 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,389 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,389 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,393 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,393 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,393 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,393 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,399 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,399 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,400 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,400 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,401 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,402 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,402 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,402 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,404 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,404 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,404 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,405 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:34:12,423 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-15 18:34:12,442 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:34:12,443 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:34:12,443 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:34:12,443 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:34:12,443 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:34:12,443 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:34:12,443 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:34:12,443 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:34:12,456 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:34:12,458 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 80 transitions, 180 flow [2020-10-15 18:34:12,460 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 80 transitions, 180 flow [2020-10-15 18:34:12,462 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 91 places, 80 transitions, 180 flow [2020-10-15 18:34:12,510 INFO L129 PetriNetUnfolder]: 2/76 cut-off events. [2020-10-15 18:34:12,511 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 18:34:12,517 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 76 events. 2/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-15 18:34:12,521 INFO L117 LiptonReduction]: Number of co-enabled transitions 1822 [2020-10-15 18:34:14,056 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-10-15 18:34:14,147 INFO L132 LiptonReduction]: Checked pairs total: 3057 [2020-10-15 18:34:14,148 INFO L134 LiptonReduction]: Total number of compositions: 63 [2020-10-15 18:34:14,156 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-10-15 18:34:14,247 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-10-15 18:34:14,249 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-10-15 18:34:14,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 18:34:14,282 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:14,283 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:14,283 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:14,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:14,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1118879254, now seen corresponding path program 1 times [2020-10-15 18:34:14,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:14,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717681069] [2020-10-15 18:34:14,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:14,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:14,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:14,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717681069] [2020-10-15 18:34:14,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:14,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:34:14,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128450692] [2020-10-15 18:34:14,540 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-15 18:34:14,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:14,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-15 18:34:14,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 18:34:14,559 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-10-15 18:34:14,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:14,606 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-10-15 18:34:14,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-15 18:34:14,608 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-15 18:34:14,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:14,637 INFO L225 Difference]: With dead ends: 850 [2020-10-15 18:34:14,638 INFO L226 Difference]: Without dead ends: 706 [2020-10-15 18:34:14,639 INFO L677 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 [2020-10-15 18:34:14,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-10-15 18:34:14,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-10-15 18:34:14,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-10-15 18:34:14,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-10-15 18:34:14,771 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-10-15 18:34:14,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:14,776 INFO L481 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-10-15 18:34:14,776 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-15 18:34:14,776 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-10-15 18:34:14,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 18:34:14,783 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:14,783 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:14,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 18:34:14,784 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:14,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:14,785 INFO L82 PathProgramCache]: Analyzing trace with hash -325524913, now seen corresponding path program 1 times [2020-10-15 18:34:14,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:14,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930867078] [2020-10-15 18:34:14,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:14,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:14,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:14,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930867078] [2020-10-15 18:34:14,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:14,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:34:14,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894978210] [2020-10-15 18:34:14,969 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:34:14,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:14,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:34:14,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:34:14,970 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-10-15 18:34:15,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:15,020 INFO L93 Difference]: Finished difference Result 802 states and 2662 transitions. [2020-10-15 18:34:15,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:34:15,021 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-15 18:34:15,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:15,027 INFO L225 Difference]: With dead ends: 802 [2020-10-15 18:34:15,028 INFO L226 Difference]: Without dead ends: 658 [2020-10-15 18:34:15,028 INFO L677 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 [2020-10-15 18:34:15,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2020-10-15 18:34:15,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2020-10-15 18:34:15,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 658 states. [2020-10-15 18:34:15,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 2230 transitions. [2020-10-15 18:34:15,060 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 2230 transitions. Word has length 11 [2020-10-15 18:34:15,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:15,060 INFO L481 AbstractCegarLoop]: Abstraction has 658 states and 2230 transitions. [2020-10-15 18:34:15,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:34:15,060 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 2230 transitions. [2020-10-15 18:34:15,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 18:34:15,063 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:15,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:15,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 18:34:15,064 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:15,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:15,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1501347001, now seen corresponding path program 1 times [2020-10-15 18:34:15,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:15,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155630951] [2020-10-15 18:34:15,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:15,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:15,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:15,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155630951] [2020-10-15 18:34:15,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:15,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:34:15,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168720089] [2020-10-15 18:34:15,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:34:15,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:15,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:34:15,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:34:15,129 INFO L87 Difference]: Start difference. First operand 658 states and 2230 transitions. Second operand 4 states. [2020-10-15 18:34:15,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:15,158 INFO L93 Difference]: Finished difference Result 718 states and 2348 transitions. [2020-10-15 18:34:15,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:34:15,159 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 18:34:15,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:15,164 INFO L225 Difference]: With dead ends: 718 [2020-10-15 18:34:15,164 INFO L226 Difference]: Without dead ends: 598 [2020-10-15 18:34:15,165 INFO L677 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 [2020-10-15 18:34:15,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2020-10-15 18:34:15,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 598. [2020-10-15 18:34:15,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 598 states. [2020-10-15 18:34:15,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 1992 transitions. [2020-10-15 18:34:15,188 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 1992 transitions. Word has length 12 [2020-10-15 18:34:15,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:15,188 INFO L481 AbstractCegarLoop]: Abstraction has 598 states and 1992 transitions. [2020-10-15 18:34:15,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:34:15,189 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 1992 transitions. [2020-10-15 18:34:15,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 18:34:15,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:15,191 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:15,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 18:34:15,191 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:15,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:15,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1422147839, now seen corresponding path program 1 times [2020-10-15 18:34:15,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:15,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353660248] [2020-10-15 18:34:15,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:15,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:15,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:15,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353660248] [2020-10-15 18:34:15,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:15,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:34:15,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766709250] [2020-10-15 18:34:15,249 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:34:15,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:15,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:34:15,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:34:15,250 INFO L87 Difference]: Start difference. First operand 598 states and 1992 transitions. Second operand 4 states. [2020-10-15 18:34:15,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:15,276 INFO L93 Difference]: Finished difference Result 634 states and 2058 transitions. [2020-10-15 18:34:15,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:34:15,277 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-15 18:34:15,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:15,282 INFO L225 Difference]: With dead ends: 634 [2020-10-15 18:34:15,282 INFO L226 Difference]: Without dead ends: 562 [2020-10-15 18:34:15,283 INFO L677 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 [2020-10-15 18:34:15,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2020-10-15 18:34:15,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2020-10-15 18:34:15,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2020-10-15 18:34:15,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 1854 transitions. [2020-10-15 18:34:15,305 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 1854 transitions. Word has length 13 [2020-10-15 18:34:15,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:15,305 INFO L481 AbstractCegarLoop]: Abstraction has 562 states and 1854 transitions. [2020-10-15 18:34:15,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:34:15,305 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 1854 transitions. [2020-10-15 18:34:15,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 18:34:15,307 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:15,307 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:15,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 18:34:15,307 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:15,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:15,308 INFO L82 PathProgramCache]: Analyzing trace with hash -464753782, now seen corresponding path program 1 times [2020-10-15 18:34:15,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:15,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922485119] [2020-10-15 18:34:15,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:15,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:15,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:15,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922485119] [2020-10-15 18:34:15,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:15,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:34:15,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9465825] [2020-10-15 18:34:15,364 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:34:15,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:15,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:34:15,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:34:15,365 INFO L87 Difference]: Start difference. First operand 562 states and 1854 transitions. Second operand 5 states. [2020-10-15 18:34:15,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:15,421 INFO L93 Difference]: Finished difference Result 834 states and 2710 transitions. [2020-10-15 18:34:15,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:34:15,422 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-15 18:34:15,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:15,426 INFO L225 Difference]: With dead ends: 834 [2020-10-15 18:34:15,426 INFO L226 Difference]: Without dead ends: 450 [2020-10-15 18:34:15,427 INFO L677 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 [2020-10-15 18:34:15,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2020-10-15 18:34:15,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2020-10-15 18:34:15,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2020-10-15 18:34:15,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 1444 transitions. [2020-10-15 18:34:15,443 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 1444 transitions. Word has length 14 [2020-10-15 18:34:15,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:15,444 INFO L481 AbstractCegarLoop]: Abstraction has 450 states and 1444 transitions. [2020-10-15 18:34:15,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:34:15,444 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 1444 transitions. [2020-10-15 18:34:15,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:34:15,445 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:15,445 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:15,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 18:34:15,446 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:15,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:15,446 INFO L82 PathProgramCache]: Analyzing trace with hash -453774883, now seen corresponding path program 1 times [2020-10-15 18:34:15,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:15,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815745262] [2020-10-15 18:34:15,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:15,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:15,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:15,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815745262] [2020-10-15 18:34:15,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:15,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:34:15,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800783158] [2020-10-15 18:34:15,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:34:15,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:15,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:34:15,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:34:15,501 INFO L87 Difference]: Start difference. First operand 450 states and 1444 transitions. Second operand 5 states. [2020-10-15 18:34:15,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:15,567 INFO L93 Difference]: Finished difference Result 834 states and 2560 transitions. [2020-10-15 18:34:15,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 18:34:15,567 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-15 18:34:15,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:15,571 INFO L225 Difference]: With dead ends: 834 [2020-10-15 18:34:15,571 INFO L226 Difference]: Without dead ends: 410 [2020-10-15 18:34:15,572 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 18:34:15,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2020-10-15 18:34:15,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 346. [2020-10-15 18:34:15,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-15 18:34:15,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 1030 transitions. [2020-10-15 18:34:15,585 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 1030 transitions. Word has length 15 [2020-10-15 18:34:15,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:15,585 INFO L481 AbstractCegarLoop]: Abstraction has 346 states and 1030 transitions. [2020-10-15 18:34:15,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:34:15,585 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 1030 transitions. [2020-10-15 18:34:15,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:34:15,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:15,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:15,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 18:34:15,587 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:15,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:15,587 INFO L82 PathProgramCache]: Analyzing trace with hash -99110680, now seen corresponding path program 1 times [2020-10-15 18:34:15,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:15,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144863485] [2020-10-15 18:34:15,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:15,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:15,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144863485] [2020-10-15 18:34:15,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:15,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:34:15,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185065048] [2020-10-15 18:34:15,628 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:34:15,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:15,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:34:15,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:34:15,629 INFO L87 Difference]: Start difference. First operand 346 states and 1030 transitions. Second operand 4 states. [2020-10-15 18:34:15,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:15,656 INFO L93 Difference]: Finished difference Result 494 states and 1402 transitions. [2020-10-15 18:34:15,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:34:15,657 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-15 18:34:15,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:15,660 INFO L225 Difference]: With dead ends: 494 [2020-10-15 18:34:15,660 INFO L226 Difference]: Without dead ends: 370 [2020-10-15 18:34:15,660 INFO L677 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 [2020-10-15 18:34:15,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-10-15 18:34:15,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 322. [2020-10-15 18:34:15,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2020-10-15 18:34:15,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 910 transitions. [2020-10-15 18:34:15,672 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 910 transitions. Word has length 15 [2020-10-15 18:34:15,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:15,672 INFO L481 AbstractCegarLoop]: Abstraction has 322 states and 910 transitions. [2020-10-15 18:34:15,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:34:15,672 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 910 transitions. [2020-10-15 18:34:15,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:34:15,673 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:15,673 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:15,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 18:34:15,674 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:15,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:15,674 INFO L82 PathProgramCache]: Analyzing trace with hash -96752386, now seen corresponding path program 1 times [2020-10-15 18:34:15,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:15,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413056769] [2020-10-15 18:34:15,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:15,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:15,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413056769] [2020-10-15 18:34:15,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:15,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:34:15,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677702614] [2020-10-15 18:34:15,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:34:15,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:15,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:34:15,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:34:15,723 INFO L87 Difference]: Start difference. First operand 322 states and 910 transitions. Second operand 5 states. [2020-10-15 18:34:15,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:15,761 INFO L93 Difference]: Finished difference Result 454 states and 1236 transitions. [2020-10-15 18:34:15,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:34:15,762 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-15 18:34:15,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:15,764 INFO L225 Difference]: With dead ends: 454 [2020-10-15 18:34:15,764 INFO L226 Difference]: Without dead ends: 238 [2020-10-15 18:34:15,765 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:34:15,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-15 18:34:15,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2020-10-15 18:34:15,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-10-15 18:34:15,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 639 transitions. [2020-10-15 18:34:15,775 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 639 transitions. Word has length 15 [2020-10-15 18:34:15,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:15,775 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 639 transitions. [2020-10-15 18:34:15,775 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:34:15,775 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 639 transitions. [2020-10-15 18:34:15,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 18:34:15,776 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:15,777 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:15,777 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 18:34:15,777 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:15,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:15,778 INFO L82 PathProgramCache]: Analyzing trace with hash 807678122, now seen corresponding path program 2 times [2020-10-15 18:34:15,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:15,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245719550] [2020-10-15 18:34:15,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:15,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:15,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245719550] [2020-10-15 18:34:15,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:15,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:34:15,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66157624] [2020-10-15 18:34:15,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:34:15,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:15,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:34:15,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:34:15,901 INFO L87 Difference]: Start difference. First operand 238 states and 639 transitions. Second operand 4 states. [2020-10-15 18:34:15,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:15,954 INFO L93 Difference]: Finished difference Result 283 states and 696 transitions. [2020-10-15 18:34:15,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:34:15,957 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-15 18:34:15,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:15,959 INFO L225 Difference]: With dead ends: 283 [2020-10-15 18:34:15,959 INFO L226 Difference]: Without dead ends: 214 [2020-10-15 18:34:15,960 INFO L677 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 [2020-10-15 18:34:15,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-10-15 18:34:15,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2020-10-15 18:34:15,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-10-15 18:34:15,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 534 transitions. [2020-10-15 18:34:15,969 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 534 transitions. Word has length 15 [2020-10-15 18:34:15,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:15,970 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 534 transitions. [2020-10-15 18:34:15,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:34:15,970 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 534 transitions. [2020-10-15 18:34:15,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-15 18:34:15,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:15,971 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:15,971 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 18:34:15,971 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:15,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:15,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1481069530, now seen corresponding path program 1 times [2020-10-15 18:34:15,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:15,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867918633] [2020-10-15 18:34:15,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:16,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:16,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:16,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867918633] [2020-10-15 18:34:16,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:16,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:34:16,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231343890] [2020-10-15 18:34:16,061 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:34:16,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:16,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:34:16,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:34:16,062 INFO L87 Difference]: Start difference. First operand 214 states and 534 transitions. Second operand 5 states. [2020-10-15 18:34:16,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:16,113 INFO L93 Difference]: Finished difference Result 211 states and 465 transitions. [2020-10-15 18:34:16,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:34:16,116 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-15 18:34:16,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:16,117 INFO L225 Difference]: With dead ends: 211 [2020-10-15 18:34:16,117 INFO L226 Difference]: Without dead ends: 158 [2020-10-15 18:34:16,117 INFO L677 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 [2020-10-15 18:34:16,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-15 18:34:16,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2020-10-15 18:34:16,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-10-15 18:34:16,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 339 transitions. [2020-10-15 18:34:16,123 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 339 transitions. Word has length 16 [2020-10-15 18:34:16,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:16,125 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 339 transitions. [2020-10-15 18:34:16,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:34:16,125 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 339 transitions. [2020-10-15 18:34:16,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 18:34:16,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:16,126 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:16,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 18:34:16,127 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:16,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:16,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1331262194, now seen corresponding path program 1 times [2020-10-15 18:34:16,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:16,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140012281] [2020-10-15 18:34:16,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:16,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:16,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:16,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140012281] [2020-10-15 18:34:16,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:16,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 18:34:16,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012950635] [2020-10-15 18:34:16,202 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 18:34:16,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:16,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 18:34:16,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 18:34:16,203 INFO L87 Difference]: Start difference. First operand 158 states and 339 transitions. Second operand 6 states. [2020-10-15 18:34:16,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:16,256 INFO L93 Difference]: Finished difference Result 134 states and 268 transitions. [2020-10-15 18:34:16,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 18:34:16,257 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-15 18:34:16,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:16,258 INFO L225 Difference]: With dead ends: 134 [2020-10-15 18:34:16,258 INFO L226 Difference]: Without dead ends: 95 [2020-10-15 18:34:16,258 INFO L677 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 [2020-10-15 18:34:16,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-10-15 18:34:16,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2020-10-15 18:34:16,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-10-15 18:34:16,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 181 transitions. [2020-10-15 18:34:16,263 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 181 transitions. Word has length 17 [2020-10-15 18:34:16,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:16,264 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 181 transitions. [2020-10-15 18:34:16,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 18:34:16,264 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 181 transitions. [2020-10-15 18:34:16,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 18:34:16,264 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:16,265 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:16,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 18:34:16,265 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:16,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:16,265 INFO L82 PathProgramCache]: Analyzing trace with hash 461519417, now seen corresponding path program 1 times [2020-10-15 18:34:16,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:16,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303508683] [2020-10-15 18:34:16,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:16,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:16,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:16,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303508683] [2020-10-15 18:34:16,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:16,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 18:34:16,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498005800] [2020-10-15 18:34:16,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 18:34:16,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:16,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 18:34:16,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:34:16,325 INFO L87 Difference]: Start difference. First operand 95 states and 181 transitions. Second operand 5 states. [2020-10-15 18:34:16,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:16,357 INFO L93 Difference]: Finished difference Result 109 states and 198 transitions. [2020-10-15 18:34:16,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 18:34:16,358 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-10-15 18:34:16,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:16,359 INFO L225 Difference]: With dead ends: 109 [2020-10-15 18:34:16,359 INFO L226 Difference]: Without dead ends: 93 [2020-10-15 18:34:16,359 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:34:16,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-15 18:34:16,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2020-10-15 18:34:16,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-15 18:34:16,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 169 transitions. [2020-10-15 18:34:16,363 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 169 transitions. Word has length 19 [2020-10-15 18:34:16,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:16,364 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 169 transitions. [2020-10-15 18:34:16,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 18:34:16,364 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 169 transitions. [2020-10-15 18:34:16,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 18:34:16,365 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:34:16,365 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:34:16,365 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 18:34:16,365 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:34:16,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:34:16,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1319799301, now seen corresponding path program 2 times [2020-10-15 18:34:16,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:34:16,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860802190] [2020-10-15 18:34:16,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:34:16,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:34:16,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 18:34:16,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860802190] [2020-10-15 18:34:16,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:34:16,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 18:34:16,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493955270] [2020-10-15 18:34:16,471 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 18:34:16,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:34:16,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 18:34:16,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-15 18:34:16,472 INFO L87 Difference]: Start difference. First operand 91 states and 169 transitions. Second operand 7 states. [2020-10-15 18:34:16,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:34:16,517 INFO L93 Difference]: Finished difference Result 81 states and 154 transitions. [2020-10-15 18:34:16,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 18:34:16,518 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 18:34:16,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:34:16,519 INFO L225 Difference]: With dead ends: 81 [2020-10-15 18:34:16,519 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 18:34:16,519 INFO L677 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 [2020-10-15 18:34:16,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 18:34:16,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 18:34:16,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 18:34:16,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 18:34:16,521 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-15 18:34:16,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:34:16,522 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 18:34:16,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 18:34:16,522 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 18:34:16,522 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 18:34:16,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 18:34:16,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 06:34:16 BasicIcfg [2020-10-15 18:34:16,527 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 18:34:16,530 INFO L168 Benchmark]: Toolchain (without parser) took 5478.75 ms. Allocated memory was 252.7 MB in the beginning and 423.1 MB in the end (delta: 170.4 MB). Free memory was 205.3 MB in the beginning and 298.1 MB in the end (delta: -92.7 MB). Peak memory consumption was 77.7 MB. Max. memory is 14.2 GB. [2020-10-15 18:34:16,531 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 252.7 MB. Free memory was 228.2 MB in the beginning and 227.4 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. [2020-10-15 18:34:16,532 INFO L168 Benchmark]: CACSL2BoogieTranslator took 682.84 ms. Allocated memory was 252.7 MB in the beginning and 318.8 MB in the end (delta: 66.1 MB). Free memory was 205.3 MB in the beginning and 269.6 MB in the end (delta: -64.2 MB). Peak memory consumption was 28.1 MB. Max. memory is 14.2 GB. [2020-10-15 18:34:16,532 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.86 ms. Allocated memory is still 318.8 MB. Free memory was 269.6 MB in the beginning and 267.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-15 18:34:16,538 INFO L168 Benchmark]: Boogie Preprocessor took 28.50 ms. Allocated memory is still 318.8 MB. Free memory was 267.9 MB in the beginning and 266.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-15 18:34:16,543 INFO L168 Benchmark]: RCFGBuilder took 463.86 ms. Allocated memory is still 318.8 MB. Free memory was 266.2 MB in the beginning and 241.8 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. [2020-10-15 18:34:16,546 INFO L168 Benchmark]: TraceAbstraction took 4205.79 ms. Allocated memory was 318.8 MB in the beginning and 423.1 MB in the end (delta: 104.3 MB). Free memory was 240.9 MB in the beginning and 298.1 MB in the end (delta: -57.1 MB). Peak memory consumption was 47.2 MB. Max. memory is 14.2 GB. [2020-10-15 18:34:16,549 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 252.7 MB. Free memory was 228.2 MB in the beginning and 227.4 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 682.84 ms. Allocated memory was 252.7 MB in the beginning and 318.8 MB in the end (delta: 66.1 MB). Free memory was 205.3 MB in the beginning and 269.6 MB in the end (delta: -64.2 MB). Peak memory consumption was 28.1 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 91.86 ms. Allocated memory is still 318.8 MB. Free memory was 269.6 MB in the beginning and 267.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 28.50 ms. Allocated memory is still 318.8 MB. Free memory was 267.9 MB in the beginning and 266.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 463.86 ms. Allocated memory is still 318.8 MB. Free memory was 266.2 MB in the beginning and 241.8 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 4205.79 ms. Allocated memory was 318.8 MB in the beginning and 423.1 MB in the end (delta: 104.3 MB). Free memory was 240.9 MB in the beginning and 298.1 MB in the end (delta: -57.1 MB). Peak memory consumption was 47.2 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1223 VarBasedMoverChecksPositive, 53 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 103 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 91 PlacesBefore, 39 PlacesAfterwards, 80 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 63 TotalNumberOfCompositions, 3057 MoverChecksTotal - 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, 79 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.0s, OverallIterations: 13, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 347 SDtfs, 346 SDslu, 602 SDs, 0 SdLazy, 217 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 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, 13 MinimizatonAttempts, 114 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 191 NumberOfCodeBlocks, 191 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 178 ConstructedInterpolants, 0 QuantifiedInterpolants, 7404 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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...