/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 22:19:11,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 22:19:11,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 22:19:11,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 22:19:11,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 22:19:11,769 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 22:19:11,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 22:19:11,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 22:19:11,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 22:19:11,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 22:19:11,776 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 22:19:11,777 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 22:19:11,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 22:19:11,778 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 22:19:11,779 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 22:19:11,780 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 22:19:11,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 22:19:11,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 22:19:11,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 22:19:11,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 22:19:11,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 22:19:11,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 22:19:11,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 22:19:11,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 22:19:11,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 22:19:11,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 22:19:11,793 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 22:19:11,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 22:19:11,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 22:19:11,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 22:19:11,795 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 22:19:11,796 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 22:19:11,797 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 22:19:11,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 22:19:11,799 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 22:19:11,799 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 22:19:11,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 22:19:11,800 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 22:19:11,800 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 22:19:11,801 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 22:19:11,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 22:19:11,803 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2020-10-15 22:19:11,824 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 22:19:11,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 22:19:11,826 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 22:19:11,826 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 22:19:11,826 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 22:19:11,826 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 22:19:11,827 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 22:19:11,827 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 22:19:11,827 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 22:19:11,827 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 22:19:11,827 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 22:19:11,828 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 22:19:11,828 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 22:19:11,828 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 22:19:11,828 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 22:19:11,828 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 22:19:11,829 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 22:19:11,829 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 22:19:11,829 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 22:19:11,829 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 22:19:11,829 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 22:19:11,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:19:11,830 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 22:19:11,830 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 22:19:11,830 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 22:19:11,830 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 22:19:11,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 22:19:11,831 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 22:19:11,831 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 22:19:12,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 22:19:12,131 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 22:19:12,134 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 22:19:12,135 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 22:19:12,136 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 22:19:12,136 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2020-10-15 22:19:12,201 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e1334e22/11a471e90ca44451a56937f527485393/FLAGf91384810 [2020-10-15 22:19:12,743 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 22:19:12,744 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2020-10-15 22:19:12,758 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e1334e22/11a471e90ca44451a56937f527485393/FLAGf91384810 [2020-10-15 22:19:13,017 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e1334e22/11a471e90ca44451a56937f527485393 [2020-10-15 22:19:13,026 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 22:19:13,028 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 22:19:13,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 22:19:13,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 22:19:13,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 22:19:13,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:19:13" (1/1) ... [2020-10-15 22:19:13,037 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 10:19:13, skipping insertion in model container [2020-10-15 22:19:13,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:19:13" (1/1) ... [2020-10-15 22:19:13,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 22:19:13,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 22:19:13,604 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:19:13,615 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 22:19:13,661 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:19:13,739 INFO L208 MainTranslator]: Completed translation [2020-10-15 22:19:13,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:13 WrapperNode [2020-10-15 22:19:13,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 22:19:13,741 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 22:19:13,741 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 22:19:13,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 22:19:13,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:13" (1/1) ... [2020-10-15 22:19:13,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:13" (1/1) ... [2020-10-15 22:19:13,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 22:19:13,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 22:19:13,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 22:19:13,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 22:19:13,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:13" (1/1) ... [2020-10-15 22:19:13,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:13" (1/1) ... [2020-10-15 22:19:13,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:13" (1/1) ... [2020-10-15 22:19:13,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:13" (1/1) ... [2020-10-15 22:19:13,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:13" (1/1) ... [2020-10-15 22:19:13,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:13" (1/1) ... [2020-10-15 22:19:13,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:13" (1/1) ... [2020-10-15 22:19:13,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 22:19:13,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 22:19:13,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 22:19:13,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 22:19:13,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:13" (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 22:19:13,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 22:19:13,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 22:19:13,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 22:19:13,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 22:19:13,896 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 22:19:13,896 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 22:19:13,896 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 22:19:13,896 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 22:19:13,897 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 22:19:13,897 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 22:19:13,897 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-15 22:19:13,897 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-15 22:19:13,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 22:19:13,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 22:19:13,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 22:19:13,899 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 22:19:14,271 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 22:19:14,272 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 22:19:14,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:19:14 BoogieIcfgContainer [2020-10-15 22:19:14,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 22:19:14,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 22:19:14,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 22:19:14,284 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 22:19:14,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:19:13" (1/3) ... [2020-10-15 22:19:14,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73415510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:19:14, skipping insertion in model container [2020-10-15 22:19:14,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:13" (2/3) ... [2020-10-15 22:19:14,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73415510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:19:14, skipping insertion in model container [2020-10-15 22:19:14,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:19:14" (3/3) ... [2020-10-15 22:19:14,288 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.oepc.i [2020-10-15 22:19:14,299 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 22:19:14,300 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 22:19:14,308 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 22:19:14,309 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 22:19:14,340 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,341 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,341 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,342 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,343 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,343 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,343 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,343 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,344 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,344 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,349 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,349 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,350 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,350 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,350 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,351 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,351 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,351 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,352 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,352 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,352 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,352 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,353 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,353 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,357 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,357 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,357 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,358 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,363 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,363 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,363 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,363 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,365 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,366 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,366 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,366 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,369 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,369 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,369 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,369 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:14,385 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-15 22:19:14,407 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:19:14,407 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:19:14,407 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:19:14,407 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:19:14,407 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:19:14,407 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:19:14,408 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:19:14,408 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:19:14,422 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:19:14,425 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 86 transitions, 192 flow [2020-10-15 22:19:14,428 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 86 transitions, 192 flow [2020-10-15 22:19:14,430 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-10-15 22:19:14,489 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-10-15 22:19:14,489 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 22:19:14,495 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2020-10-15 22:19:14,504 INFO L117 LiptonReduction]: Number of co-enabled transitions 2016 [2020-10-15 22:19:16,093 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-10-15 22:19:16,170 INFO L132 LiptonReduction]: Checked pairs total: 4737 [2020-10-15 22:19:16,170 INFO L134 LiptonReduction]: Total number of compositions: 68 [2020-10-15 22:19:16,177 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 29 transitions, 78 flow [2020-10-15 22:19:16,273 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1450 states. [2020-10-15 22:19:16,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-10-15 22:19:16,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 22:19:16,287 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:16,288 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:16,288 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:16,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:16,294 INFO L82 PathProgramCache]: Analyzing trace with hash 546901279, now seen corresponding path program 1 times [2020-10-15 22:19:16,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:16,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725183451] [2020-10-15 22:19:16,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:16,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:16,502 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 22:19:16,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725183451] [2020-10-15 22:19:16,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:16,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:19:16,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819056136] [2020-10-15 22:19:16,509 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-15 22:19:16,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:16,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-15 22:19:16,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 22:19:16,524 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 2 states. [2020-10-15 22:19:16,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:16,599 INFO L93 Difference]: Finished difference Result 1450 states and 5376 transitions. [2020-10-15 22:19:16,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-15 22:19:16,601 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-15 22:19:16,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:16,637 INFO L225 Difference]: With dead ends: 1450 [2020-10-15 22:19:16,637 INFO L226 Difference]: Without dead ends: 1194 [2020-10-15 22:19:16,638 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 22:19:16,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2020-10-15 22:19:16,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2020-10-15 22:19:16,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-10-15 22:19:16,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 4352 transitions. [2020-10-15 22:19:16,799 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 4352 transitions. Word has length 10 [2020-10-15 22:19:16,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:16,803 INFO L481 AbstractCegarLoop]: Abstraction has 1194 states and 4352 transitions. [2020-10-15 22:19:16,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-15 22:19:16,803 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 4352 transitions. [2020-10-15 22:19:16,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 22:19:16,809 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:16,810 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:16,810 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 22:19:16,810 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:16,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:16,811 INFO L82 PathProgramCache]: Analyzing trace with hash -225951647, now seen corresponding path program 1 times [2020-10-15 22:19:16,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:16,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013061908] [2020-10-15 22:19:16,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:16,935 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 22:19:16,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013061908] [2020-10-15 22:19:16,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:16,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:19:16,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029728922] [2020-10-15 22:19:16,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:19:16,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:16,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:19:16,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:19:16,939 INFO L87 Difference]: Start difference. First operand 1194 states and 4352 transitions. Second operand 4 states. [2020-10-15 22:19:16,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:16,998 INFO L93 Difference]: Finished difference Result 1322 states and 4640 transitions. [2020-10-15 22:19:16,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:19:16,999 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-15 22:19:16,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:17,009 INFO L225 Difference]: With dead ends: 1322 [2020-10-15 22:19:17,009 INFO L226 Difference]: Without dead ends: 1066 [2020-10-15 22:19:17,010 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 22:19:17,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-10-15 22:19:17,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-10-15 22:19:17,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-10-15 22:19:17,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3808 transitions. [2020-10-15 22:19:17,057 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3808 transitions. Word has length 11 [2020-10-15 22:19:17,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:17,057 INFO L481 AbstractCegarLoop]: Abstraction has 1066 states and 3808 transitions. [2020-10-15 22:19:17,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:19:17,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3808 transitions. [2020-10-15 22:19:17,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 22:19:17,060 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:17,060 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:17,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 22:19:17,061 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:17,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:17,061 INFO L82 PathProgramCache]: Analyzing trace with hash -426404145, now seen corresponding path program 1 times [2020-10-15 22:19:17,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:17,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464136122] [2020-10-15 22:19:17,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:17,136 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 22:19:17,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464136122] [2020-10-15 22:19:17,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:17,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:19:17,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642608362] [2020-10-15 22:19:17,138 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:19:17,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:17,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:19:17,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:19:17,139 INFO L87 Difference]: Start difference. First operand 1066 states and 3808 transitions. Second operand 4 states. [2020-10-15 22:19:17,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:17,172 INFO L93 Difference]: Finished difference Result 1162 states and 4016 transitions. [2020-10-15 22:19:17,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:19:17,173 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 22:19:17,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:17,181 INFO L225 Difference]: With dead ends: 1162 [2020-10-15 22:19:17,182 INFO L226 Difference]: Without dead ends: 970 [2020-10-15 22:19:17,182 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 22:19:17,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2020-10-15 22:19:17,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2020-10-15 22:19:17,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2020-10-15 22:19:17,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 3408 transitions. [2020-10-15 22:19:17,220 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 3408 transitions. Word has length 12 [2020-10-15 22:19:17,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:17,221 INFO L481 AbstractCegarLoop]: Abstraction has 970 states and 3408 transitions. [2020-10-15 22:19:17,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:19:17,221 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 3408 transitions. [2020-10-15 22:19:17,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:19:17,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:17,224 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:17,224 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 22:19:17,224 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:17,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:17,224 INFO L82 PathProgramCache]: Analyzing trace with hash 847962781, now seen corresponding path program 1 times [2020-10-15 22:19:17,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:17,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505269272] [2020-10-15 22:19:17,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:17,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:17,290 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 22:19:17,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505269272] [2020-10-15 22:19:17,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:17,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:19:17,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961158276] [2020-10-15 22:19:17,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:19:17,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:17,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:19:17,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:19:17,293 INFO L87 Difference]: Start difference. First operand 970 states and 3408 transitions. Second operand 4 states. [2020-10-15 22:19:17,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:17,324 INFO L93 Difference]: Finished difference Result 1042 states and 3558 transitions. [2020-10-15 22:19:17,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:19:17,324 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-15 22:19:17,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:17,332 INFO L225 Difference]: With dead ends: 1042 [2020-10-15 22:19:17,332 INFO L226 Difference]: Without dead ends: 898 [2020-10-15 22:19:17,332 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 22:19:17,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2020-10-15 22:19:17,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 898. [2020-10-15 22:19:17,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2020-10-15 22:19:17,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 3114 transitions. [2020-10-15 22:19:17,365 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 3114 transitions. Word has length 13 [2020-10-15 22:19:17,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:17,366 INFO L481 AbstractCegarLoop]: Abstraction has 898 states and 3114 transitions. [2020-10-15 22:19:17,366 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:19:17,366 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 3114 transitions. [2020-10-15 22:19:17,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 22:19:17,368 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:17,368 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:17,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 22:19:17,368 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:17,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:17,369 INFO L82 PathProgramCache]: Analyzing trace with hash 517017440, now seen corresponding path program 1 times [2020-10-15 22:19:17,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:17,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857902312] [2020-10-15 22:19:17,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:17,422 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 22:19:17,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857902312] [2020-10-15 22:19:17,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:17,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:19:17,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579075826] [2020-10-15 22:19:17,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:19:17,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:17,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:19:17,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:19:17,425 INFO L87 Difference]: Start difference. First operand 898 states and 3114 transitions. Second operand 4 states. [2020-10-15 22:19:17,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:17,451 INFO L93 Difference]: Finished difference Result 952 states and 3222 transitions. [2020-10-15 22:19:17,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:19:17,451 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-15 22:19:17,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:17,459 INFO L225 Difference]: With dead ends: 952 [2020-10-15 22:19:17,460 INFO L226 Difference]: Without dead ends: 844 [2020-10-15 22:19:17,460 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 22:19:17,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2020-10-15 22:19:17,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 844. [2020-10-15 22:19:17,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 844 states. [2020-10-15 22:19:17,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 2898 transitions. [2020-10-15 22:19:17,494 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 2898 transitions. Word has length 14 [2020-10-15 22:19:17,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:17,495 INFO L481 AbstractCegarLoop]: Abstraction has 844 states and 2898 transitions. [2020-10-15 22:19:17,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:19:17,495 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 2898 transitions. [2020-10-15 22:19:17,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:19:17,498 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:17,498 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:17,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 22:19:17,498 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:17,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:17,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1152352578, now seen corresponding path program 1 times [2020-10-15 22:19:17,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:17,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952185785] [2020-10-15 22:19:17,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:17,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:17,604 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 22:19:17,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952185785] [2020-10-15 22:19:17,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:17,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:17,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87770893] [2020-10-15 22:19:17,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:17,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:17,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:17,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:17,606 INFO L87 Difference]: Start difference. First operand 844 states and 2898 transitions. Second operand 5 states. [2020-10-15 22:19:17,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:17,664 INFO L93 Difference]: Finished difference Result 1063 states and 3587 transitions. [2020-10-15 22:19:17,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:17,664 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-15 22:19:17,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:17,670 INFO L225 Difference]: With dead ends: 1063 [2020-10-15 22:19:17,670 INFO L226 Difference]: Without dead ends: 598 [2020-10-15 22:19:17,671 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 22:19:17,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2020-10-15 22:19:17,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 598. [2020-10-15 22:19:17,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 598 states. [2020-10-15 22:19:17,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 1914 transitions. [2020-10-15 22:19:17,695 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 1914 transitions. Word has length 15 [2020-10-15 22:19:17,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:17,696 INFO L481 AbstractCegarLoop]: Abstraction has 598 states and 1914 transitions. [2020-10-15 22:19:17,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:17,696 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 1914 transitions. [2020-10-15 22:19:17,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-15 22:19:17,698 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:17,698 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:17,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 22:19:17,698 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:17,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:17,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1363663410, now seen corresponding path program 1 times [2020-10-15 22:19:17,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:17,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450668751] [2020-10-15 22:19:17,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:17,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:17,755 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 22:19:17,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450668751] [2020-10-15 22:19:17,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:17,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:17,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269616369] [2020-10-15 22:19:17,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:17,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:17,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:17,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:17,758 INFO L87 Difference]: Start difference. First operand 598 states and 1914 transitions. Second operand 5 states. [2020-10-15 22:19:17,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:17,804 INFO L93 Difference]: Finished difference Result 712 states and 2245 transitions. [2020-10-15 22:19:17,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:17,804 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-15 22:19:17,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:17,807 INFO L225 Difference]: With dead ends: 712 [2020-10-15 22:19:17,807 INFO L226 Difference]: Without dead ends: 292 [2020-10-15 22:19:17,807 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 22:19:17,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-10-15 22:19:17,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2020-10-15 22:19:17,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-10-15 22:19:17,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 846 transitions. [2020-10-15 22:19:17,818 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 846 transitions. Word has length 16 [2020-10-15 22:19:17,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:17,819 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 846 transitions. [2020-10-15 22:19:17,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:17,819 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 846 transitions. [2020-10-15 22:19:17,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 22:19:17,820 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:17,820 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 22:19:17,821 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 22:19:17,821 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:17,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:17,821 INFO L82 PathProgramCache]: Analyzing trace with hash -670734284, now seen corresponding path program 1 times [2020-10-15 22:19:17,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:17,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471057331] [2020-10-15 22:19:17,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:17,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:17,874 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 22:19:17,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471057331] [2020-10-15 22:19:17,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:17,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:17,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342631893] [2020-10-15 22:19:17,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:17,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:17,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:17,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:17,877 INFO L87 Difference]: Start difference. First operand 292 states and 846 transitions. Second operand 5 states. [2020-10-15 22:19:17,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:17,917 INFO L93 Difference]: Finished difference Result 352 states and 1006 transitions. [2020-10-15 22:19:17,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:17,918 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-15 22:19:17,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:17,919 INFO L225 Difference]: With dead ends: 352 [2020-10-15 22:19:17,920 INFO L226 Difference]: Without dead ends: 154 [2020-10-15 22:19:17,920 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 22:19:17,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-15 22:19:17,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-10-15 22:19:17,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-15 22:19:17,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 410 transitions. [2020-10-15 22:19:17,926 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 410 transitions. Word has length 17 [2020-10-15 22:19:17,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:17,927 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 410 transitions. [2020-10-15 22:19:17,927 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:17,927 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 410 transitions. [2020-10-15 22:19:17,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 22:19:17,928 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:17,928 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:17,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 22:19:17,928 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:17,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:17,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1157328918, now seen corresponding path program 1 times [2020-10-15 22:19:17,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:17,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124893715] [2020-10-15 22:19:17,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:17,990 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 22:19:17,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124893715] [2020-10-15 22:19:17,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:17,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:17,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550789645] [2020-10-15 22:19:17,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:17,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:17,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:17,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:17,993 INFO L87 Difference]: Start difference. First operand 154 states and 410 transitions. Second operand 5 states. [2020-10-15 22:19:18,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:18,026 INFO L93 Difference]: Finished difference Result 130 states and 334 transitions. [2020-10-15 22:19:18,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:18,027 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-15 22:19:18,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:18,027 INFO L225 Difference]: With dead ends: 130 [2020-10-15 22:19:18,027 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 22:19:18,028 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 22:19:18,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 22:19:18,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 22:19:18,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 22:19:18,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 22:19:18,029 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-15 22:19:18,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:18,029 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 22:19:18,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:18,029 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 22:19:18,029 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 22:19:18,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 22:19:18,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 10:19:18 BasicIcfg [2020-10-15 22:19:18,033 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 22:19:18,035 INFO L168 Benchmark]: Toolchain (without parser) took 5007.78 ms. Allocated memory was 250.1 MB in the beginning and 427.8 MB in the end (delta: 177.7 MB). Free memory was 205.9 MB in the beginning and 310.5 MB in the end (delta: -104.6 MB). Peak memory consumption was 73.1 MB. Max. memory is 14.2 GB. [2020-10-15 22:19:18,036 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 250.1 MB. Free memory was 228.1 MB in the beginning and 227.3 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. [2020-10-15 22:19:18,037 INFO L168 Benchmark]: CACSL2BoogieTranslator took 711.14 ms. Allocated memory was 250.1 MB in the beginning and 310.9 MB in the end (delta: 60.8 MB). Free memory was 205.9 MB in the beginning and 264.2 MB in the end (delta: -58.3 MB). Peak memory consumption was 30.4 MB. Max. memory is 14.2 GB. [2020-10-15 22:19:18,037 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.23 ms. Allocated memory is still 310.9 MB. Free memory was 264.2 MB in the beginning and 262.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-15 22:19:18,038 INFO L168 Benchmark]: Boogie Preprocessor took 29.38 ms. Allocated memory is still 310.9 MB. Free memory was 262.5 MB in the beginning and 260.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-15 22:19:18,039 INFO L168 Benchmark]: RCFGBuilder took 458.18 ms. Allocated memory is still 310.9 MB. Free memory was 260.8 MB in the beginning and 235.5 MB in the end (delta: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 14.2 GB. [2020-10-15 22:19:18,040 INFO L168 Benchmark]: TraceAbstraction took 3753.12 ms. Allocated memory was 310.9 MB in the beginning and 427.8 MB in the end (delta: 116.9 MB). Free memory was 234.7 MB in the beginning and 310.5 MB in the end (delta: -75.8 MB). Peak memory consumption was 41.1 MB. Max. memory is 14.2 GB. [2020-10-15 22:19:18,043 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 250.1 MB. Free memory was 228.1 MB in the beginning and 227.3 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 711.14 ms. Allocated memory was 250.1 MB in the beginning and 310.9 MB in the end (delta: 60.8 MB). Free memory was 205.9 MB in the beginning and 264.2 MB in the end (delta: -58.3 MB). Peak memory consumption was 30.4 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 50.23 ms. Allocated memory is still 310.9 MB. Free memory was 264.2 MB in the beginning and 262.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 29.38 ms. Allocated memory is still 310.9 MB. Free memory was 262.5 MB in the beginning and 260.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 458.18 ms. Allocated memory is still 310.9 MB. Free memory was 260.8 MB in the beginning and 235.5 MB in the end (delta: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3753.12 ms. Allocated memory was 310.9 MB in the beginning and 427.8 MB in the end (delta: 116.9 MB). Free memory was 234.7 MB in the beginning and 310.5 MB in the end (delta: -75.8 MB). Peak memory consumption was 41.1 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1437 VarBasedMoverChecksPositive, 59 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 47 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 188 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.7s, 97 PlacesBefore, 41 PlacesAfterwards, 86 TransitionsBefore, 29 TransitionsAfterwards, 2016 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 68 TotalNumberOfCompositions, 4737 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, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.6s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 263 SDtfs, 280 SDslu, 349 SDs, 0 SdLazy, 63 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred 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: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 117 ConstructedInterpolants, 0 QuantifiedInterpolants, 4689 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...