/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-11 15:41:03,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-11 15:41:03,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-11 15:41:03,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-11 15:41:03,786 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-11 15:41:03,787 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-11 15:41:03,788 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-11 15:41:03,791 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-11 15:41:03,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-11 15:41:03,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-11 15:41:03,802 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-11 15:41:03,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-11 15:41:03,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-11 15:41:03,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-11 15:41:03,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-11 15:41:03,809 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-11 15:41:03,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-11 15:41:03,813 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-11 15:41:03,816 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-11 15:41:03,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-11 15:41:03,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-11 15:41:03,824 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-11 15:41:03,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-11 15:41:03,828 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-11 15:41:03,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-11 15:41:03,838 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-11 15:41:03,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-11 15:41:03,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-11 15:41:03,843 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-11 15:41:03,844 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-11 15:41:03,844 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-11 15:41:03,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-11 15:41:03,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-11 15:41:03,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-11 15:41:03,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-11 15:41:03,849 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-11 15:41:03,850 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-11 15:41:03,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-11 15:41:03,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-11 15:41:03,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-11 15:41:03,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-11 15:41:03,854 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-11 15:41:03,896 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-11 15:41:03,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-11 15:41:03,898 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-11 15:41:03,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-11 15:41:03,898 INFO L138 SettingsManager]: * Use SBE=true [2020-09-11 15:41:03,898 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-11 15:41:03,899 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-11 15:41:03,899 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-11 15:41:03,899 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-11 15:41:03,899 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-11 15:41:03,900 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-11 15:41:03,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-11 15:41:03,901 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-11 15:41:03,901 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-11 15:41:03,901 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-11 15:41:03,902 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-11 15:41:03,902 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-11 15:41:03,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-11 15:41:03,902 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-11 15:41:03,902 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-11 15:41:03,903 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-11 15:41:03,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 15:41:03,903 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-11 15:41:03,903 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-11 15:41:03,904 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-11 15:41:03,904 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-11 15:41:03,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-11 15:41:03,904 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-11 15:41:03,904 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-11 15:41:03,905 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-11 15:41:04,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-11 15:41:04,414 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-11 15:41:04,420 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-11 15:41:04,421 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-11 15:41:04,422 INFO L275 PluginConnector]: CDTParser initialized [2020-09-11 15:41:04,423 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2020-09-11 15:41:04,486 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9557a47e5/0bce4008ed5f45b7a835a68af2d56d47/FLAG77097c5c4 [2020-09-11 15:41:05,127 INFO L306 CDTParser]: Found 1 translation units. [2020-09-11 15:41:05,128 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2020-09-11 15:41:05,145 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9557a47e5/0bce4008ed5f45b7a835a68af2d56d47/FLAG77097c5c4 [2020-09-11 15:41:05,327 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9557a47e5/0bce4008ed5f45b7a835a68af2d56d47 [2020-09-11 15:41:05,341 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-11 15:41:05,347 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-11 15:41:05,348 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-11 15:41:05,348 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-11 15:41:05,352 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-11 15:41:05,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 03:41:05" (1/1) ... [2020-09-11 15:41:05,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@463c989b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:05, skipping insertion in model container [2020-09-11 15:41:05,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 03:41:05" (1/1) ... [2020-09-11 15:41:05,367 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-11 15:41:05,438 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-11 15:41:05,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 15:41:05,905 INFO L203 MainTranslator]: Completed pre-run [2020-09-11 15:41:06,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 15:41:06,085 INFO L208 MainTranslator]: Completed translation [2020-09-11 15:41:06,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:06 WrapperNode [2020-09-11 15:41:06,086 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-11 15:41:06,087 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-11 15:41:06,087 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-11 15:41:06,087 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-11 15:41:06,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:06" (1/1) ... [2020-09-11 15:41:06,118 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:06" (1/1) ... [2020-09-11 15:41:06,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-11 15:41:06,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-11 15:41:06,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-11 15:41:06,146 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-11 15:41:06,155 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:06" (1/1) ... [2020-09-11 15:41:06,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:06" (1/1) ... [2020-09-11 15:41:06,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:06" (1/1) ... [2020-09-11 15:41:06,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:06" (1/1) ... [2020-09-11 15:41:06,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:06" (1/1) ... [2020-09-11 15:41:06,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:06" (1/1) ... [2020-09-11 15:41:06,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:06" (1/1) ... [2020-09-11 15:41:06,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-11 15:41:06,175 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-11 15:41:06,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-11 15:41:06,175 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-11 15:41:06,176 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:06" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 15:41:06,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-11 15:41:06,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-11 15:41:06,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-11 15:41:06,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-11 15:41:06,252 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-11 15:41:06,252 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-11 15:41:06,252 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-11 15:41:06,252 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-11 15:41:06,253 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-11 15:41:06,253 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-11 15:41:06,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-11 15:41:06,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-11 15:41:06,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-11 15:41:06,256 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-11 15:41:06,673 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-11 15:41:06,674 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-11 15:41:06,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 03:41:06 BoogieIcfgContainer [2020-09-11 15:41:06,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-11 15:41:06,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-11 15:41:06,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-11 15:41:06,685 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-11 15:41:06,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 03:41:05" (1/3) ... [2020-09-11 15:41:06,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be6f298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 03:41:06, skipping insertion in model container [2020-09-11 15:41:06,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:41:06" (2/3) ... [2020-09-11 15:41:06,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be6f298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 03:41:06, skipping insertion in model container [2020-09-11 15:41:06,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 03:41:06" (3/3) ... [2020-09-11 15:41:06,690 INFO L109 eAbstractionObserver]: Analyzing ICFG safe026_tso.oepc.i [2020-09-11 15:41:06,701 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-11 15:41:06,702 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-11 15:41:06,712 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-11 15:41:06,713 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-11 15:41:06,742 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:06,743 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:06,743 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:06,743 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:06,744 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:06,744 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:06,745 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:06,745 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:06,745 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:06,745 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:06,746 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:06,746 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:06,746 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:06,747 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:06,747 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:06,747 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:06,747 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:06,748 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:06,752 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:06,752 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:06,753 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:06,753 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:06,763 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:06,763 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:06,763 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:06,764 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:06,767 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:06,768 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:06,768 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:06,768 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:41:06,791 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-11 15:41:06,816 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-11 15:41:06,816 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-11 15:41:06,816 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-11 15:41:06,816 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-11 15:41:06,816 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-11 15:41:06,817 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-11 15:41:06,817 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-11 15:41:06,817 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-11 15:41:06,833 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-09-11 15:41:06,835 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-09-11 15:41:06,881 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-09-11 15:41:06,882 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 15:41:06,888 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-09-11 15:41:06,891 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-09-11 15:41:06,913 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-09-11 15:41:06,913 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 15:41:06,914 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-09-11 15:41:06,916 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1178 [2020-09-11 15:41:06,917 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-11 15:41:08,517 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2133 [2020-09-11 15:41:08,517 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-09-11 15:41:08,522 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-09-11 15:41:08,546 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-09-11 15:41:08,548 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-09-11 15:41:08,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-11 15:41:08,557 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:41:08,558 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:41:08,559 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:41:08,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:41:08,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1225676630, now seen corresponding path program 1 times [2020-09-11 15:41:08,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:41:08,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944063847] [2020-09-11 15:41:08,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:41:08,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:41:08,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:41:08,873 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944063847] [2020-09-11 15:41:08,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:41:08,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-11 15:41:08,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656816845] [2020-09-11 15:41:08,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 15:41:08,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:41:08,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 15:41:08,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 15:41:08,899 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-09-11 15:41:08,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:41:08,945 INFO L93 Difference]: Finished difference Result 214 states and 593 transitions. [2020-09-11 15:41:08,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 15:41:08,950 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-11 15:41:08,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:41:08,979 INFO L225 Difference]: With dead ends: 214 [2020-09-11 15:41:08,979 INFO L226 Difference]: Without dead ends: 166 [2020-09-11 15:41:08,981 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 15:41:09,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-09-11 15:41:09,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-09-11 15:41:09,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-09-11 15:41:09,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 441 transitions. [2020-09-11 15:41:09,050 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 441 transitions. Word has length 8 [2020-09-11 15:41:09,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:41:09,052 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 441 transitions. [2020-09-11 15:41:09,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 15:41:09,052 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-09-11 15:41:09,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-11 15:41:09,054 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:41:09,054 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:41:09,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-11 15:41:09,054 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:41:09,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:41:09,055 INFO L82 PathProgramCache]: Analyzing trace with hash 658710541, now seen corresponding path program 1 times [2020-09-11 15:41:09,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:41:09,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034381703] [2020-09-11 15:41:09,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:41:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:41:09,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:41:09,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034381703] [2020-09-11 15:41:09,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:41:09,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:41:09,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539484610] [2020-09-11 15:41:09,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 15:41:09,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:41:09,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 15:41:09,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 15:41:09,164 INFO L87 Difference]: Start difference. First operand 166 states and 441 transitions. Second operand 4 states. [2020-09-11 15:41:09,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:41:09,212 INFO L93 Difference]: Finished difference Result 220 states and 567 transitions. [2020-09-11 15:41:09,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-11 15:41:09,212 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-09-11 15:41:09,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:41:09,215 INFO L225 Difference]: With dead ends: 220 [2020-09-11 15:41:09,215 INFO L226 Difference]: Without dead ends: 148 [2020-09-11 15:41:09,216 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:41:09,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-09-11 15:41:09,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2020-09-11 15:41:09,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-09-11 15:41:09,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 377 transitions. [2020-09-11 15:41:09,235 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 377 transitions. Word has length 9 [2020-09-11 15:41:09,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:41:09,235 INFO L479 AbstractCegarLoop]: Abstraction has 148 states and 377 transitions. [2020-09-11 15:41:09,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 15:41:09,235 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 377 transitions. [2020-09-11 15:41:09,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-11 15:41:09,236 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:41:09,237 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:41:09,237 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-11 15:41:09,237 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:41:09,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:41:09,237 INFO L82 PathProgramCache]: Analyzing trace with hash -1054223531, now seen corresponding path program 1 times [2020-09-11 15:41:09,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:41:09,238 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027181092] [2020-09-11 15:41:09,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:41:09,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:41:09,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:41:09,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027181092] [2020-09-11 15:41:09,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:41:09,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:41:09,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158896008] [2020-09-11 15:41:09,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 15:41:09,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:41:09,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 15:41:09,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 15:41:09,375 INFO L87 Difference]: Start difference. First operand 148 states and 377 transitions. Second operand 4 states. [2020-09-11 15:41:09,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:41:09,419 INFO L93 Difference]: Finished difference Result 168 states and 391 transitions. [2020-09-11 15:41:09,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 15:41:09,422 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-09-11 15:41:09,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:41:09,425 INFO L225 Difference]: With dead ends: 168 [2020-09-11 15:41:09,425 INFO L226 Difference]: Without dead ends: 126 [2020-09-11 15:41:09,425 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:41:09,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-09-11 15:41:09,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-09-11 15:41:09,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-09-11 15:41:09,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 291 transitions. [2020-09-11 15:41:09,437 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 291 transitions. Word has length 10 [2020-09-11 15:41:09,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:41:09,438 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 291 transitions. [2020-09-11 15:41:09,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 15:41:09,438 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 291 transitions. [2020-09-11 15:41:09,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-11 15:41:09,439 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:41:09,439 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:41:09,440 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-11 15:41:09,440 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:41:09,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:41:09,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1670186442, now seen corresponding path program 1 times [2020-09-11 15:41:09,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:41:09,441 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492320869] [2020-09-11 15:41:09,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:41:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:41:09,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:41:09,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492320869] [2020-09-11 15:41:09,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:41:09,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 15:41:09,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400920347] [2020-09-11 15:41:09,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 15:41:09,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:41:09,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 15:41:09,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:41:09,555 INFO L87 Difference]: Start difference. First operand 126 states and 291 transitions. Second operand 5 states. [2020-09-11 15:41:09,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:41:09,634 INFO L93 Difference]: Finished difference Result 121 states and 257 transitions. [2020-09-11 15:41:09,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-11 15:41:09,635 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-09-11 15:41:09,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:41:09,637 INFO L225 Difference]: With dead ends: 121 [2020-09-11 15:41:09,637 INFO L226 Difference]: Without dead ends: 93 [2020-09-11 15:41:09,637 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-11 15:41:09,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-09-11 15:41:09,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-09-11 15:41:09,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-11 15:41:09,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 192 transitions. [2020-09-11 15:41:09,652 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 192 transitions. Word has length 11 [2020-09-11 15:41:09,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:41:09,652 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 192 transitions. [2020-09-11 15:41:09,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 15:41:09,652 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 192 transitions. [2020-09-11 15:41:09,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-11 15:41:09,654 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:41:09,654 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:41:09,654 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-11 15:41:09,654 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:41:09,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:41:09,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1269858217, now seen corresponding path program 1 times [2020-09-11 15:41:09,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:41:09,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562681286] [2020-09-11 15:41:09,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:41:09,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:41:09,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:41:09,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562681286] [2020-09-11 15:41:09,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:41:09,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-11 15:41:09,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791552265] [2020-09-11 15:41:09,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-11 15:41:09,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:41:09,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-11 15:41:09,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-11 15:41:09,760 INFO L87 Difference]: Start difference. First operand 93 states and 192 transitions. Second operand 6 states. [2020-09-11 15:41:09,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:41:09,823 INFO L93 Difference]: Finished difference Result 87 states and 178 transitions. [2020-09-11 15:41:09,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-11 15:41:09,824 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-09-11 15:41:09,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:41:09,825 INFO L225 Difference]: With dead ends: 87 [2020-09-11 15:41:09,825 INFO L226 Difference]: Without dead ends: 78 [2020-09-11 15:41:09,825 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-11 15:41:09,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-09-11 15:41:09,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-09-11 15:41:09,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-11 15:41:09,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 162 transitions. [2020-09-11 15:41:09,831 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 162 transitions. Word has length 13 [2020-09-11 15:41:09,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:41:09,831 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 162 transitions. [2020-09-11 15:41:09,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-11 15:41:09,832 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 162 transitions. [2020-09-11 15:41:09,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-11 15:41:09,833 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:41:09,833 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:41:09,833 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-11 15:41:09,833 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:41:09,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:41:09,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1906464189, now seen corresponding path program 1 times [2020-09-11 15:41:09,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:41:09,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320253892] [2020-09-11 15:41:09,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:41:09,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:41:09,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:41:09,940 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320253892] [2020-09-11 15:41:09,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:41:09,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 15:41:09,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613420409] [2020-09-11 15:41:09,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 15:41:09,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:41:09,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 15:41:09,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 15:41:09,943 INFO L87 Difference]: Start difference. First operand 78 states and 162 transitions. Second operand 4 states. [2020-09-11 15:41:09,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:41:09,965 INFO L93 Difference]: Finished difference Result 129 states and 249 transitions. [2020-09-11 15:41:09,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 15:41:09,966 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-09-11 15:41:09,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:41:09,967 INFO L225 Difference]: With dead ends: 129 [2020-09-11 15:41:09,967 INFO L226 Difference]: Without dead ends: 48 [2020-09-11 15:41:09,967 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:41:09,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-11 15:41:09,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-09-11 15:41:09,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-11 15:41:09,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 85 transitions. [2020-09-11 15:41:09,978 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 85 transitions. Word has length 16 [2020-09-11 15:41:09,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:41:09,979 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 85 transitions. [2020-09-11 15:41:09,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 15:41:09,979 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2020-09-11 15:41:09,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-11 15:41:09,980 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:41:09,980 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:41:09,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-11 15:41:09,980 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:41:09,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:41:09,983 INFO L82 PathProgramCache]: Analyzing trace with hash -109612871, now seen corresponding path program 2 times [2020-09-11 15:41:09,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:41:09,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296565546] [2020-09-11 15:41:09,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:41:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:41:10,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:41:10,082 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296565546] [2020-09-11 15:41:10,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:41:10,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 15:41:10,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843965497] [2020-09-11 15:41:10,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 15:41:10,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:41:10,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 15:41:10,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 15:41:10,085 INFO L87 Difference]: Start difference. First operand 48 states and 85 transitions. Second operand 4 states. [2020-09-11 15:41:10,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:41:10,100 INFO L93 Difference]: Finished difference Result 47 states and 84 transitions. [2020-09-11 15:41:10,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-11 15:41:10,100 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-09-11 15:41:10,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:41:10,101 INFO L225 Difference]: With dead ends: 47 [2020-09-11 15:41:10,101 INFO L226 Difference]: Without dead ends: 0 [2020-09-11 15:41:10,102 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:41:10,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-11 15:41:10,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-11 15:41:10,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-11 15:41:10,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-11 15:41:10,103 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-09-11 15:41:10,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:41:10,103 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-11 15:41:10,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 15:41:10,103 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-11 15:41:10,104 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-11 15:41:10,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-11 15:41:10,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 03:41:10 BasicIcfg [2020-09-11 15:41:10,110 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-11 15:41:10,114 INFO L168 Benchmark]: Toolchain (without parser) took 4769.40 ms. Allocated memory was 137.4 MB in the beginning and 253.2 MB in the end (delta: 115.9 MB). Free memory was 99.5 MB in the beginning and 203.1 MB in the end (delta: -103.6 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2020-09-11 15:41:10,120 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-11 15:41:10,121 INFO L168 Benchmark]: CACSL2BoogieTranslator took 738.61 ms. Allocated memory was 137.4 MB in the beginning and 200.3 MB in the end (delta: 62.9 MB). Free memory was 98.8 MB in the beginning and 158.0 MB in the end (delta: -59.2 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2020-09-11 15:41:10,122 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.73 ms. Allocated memory is still 200.3 MB. Free memory was 158.0 MB in the beginning and 155.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-09-11 15:41:10,123 INFO L168 Benchmark]: Boogie Preprocessor took 28.66 ms. Allocated memory is still 200.3 MB. Free memory was 155.9 MB in the beginning and 154.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-11 15:41:10,124 INFO L168 Benchmark]: RCFGBuilder took 505.29 ms. Allocated memory is still 200.3 MB. Free memory was 154.5 MB in the beginning and 132.4 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-09-11 15:41:10,127 INFO L168 Benchmark]: TraceAbstraction took 3428.23 ms. Allocated memory was 200.3 MB in the beginning and 253.2 MB in the end (delta: 53.0 MB). Free memory was 131.7 MB in the beginning and 203.1 MB in the end (delta: -71.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-11 15:41:10,136 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 137.4 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 738.61 ms. Allocated memory was 137.4 MB in the beginning and 200.3 MB in the end (delta: 62.9 MB). Free memory was 98.8 MB in the beginning and 158.0 MB in the end (delta: -59.2 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.73 ms. Allocated memory is still 200.3 MB. Free memory was 158.0 MB in the beginning and 155.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.66 ms. Allocated memory is still 200.3 MB. Free memory was 155.9 MB in the beginning and 154.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 505.29 ms. Allocated memory is still 200.3 MB. Free memory was 154.5 MB in the beginning and 132.4 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3428.23 ms. Allocated memory was 200.3 MB in the beginning and 253.2 MB in the end (delta: 53.0 MB). Free memory was 131.7 MB in the beginning and 203.1 MB in the end (delta: -71.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 76 ProgramPointsBefore, 30 ProgramPointsAfterwards, 68 TransitionsBefore, 20 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 608 VarBasedMoverChecksPositive, 31 VarBasedMoverChecksNegative, 13 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 2133 CheckedPairsTotal, 57 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 131 SDtfs, 126 SDslu, 188 SDs, 0 SdLazy, 102 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 2602 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...