/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/safe034_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 11:22:25,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 11:22:25,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 11:22:25,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 11:22:25,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 11:22:25,900 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 11:22:25,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 11:22:25,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 11:22:25,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 11:22:25,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 11:22:25,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 11:22:25,908 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 11:22:25,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 11:22:25,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 11:22:25,911 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 11:22:25,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 11:22:25,913 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 11:22:25,914 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 11:22:25,916 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 11:22:25,918 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 11:22:25,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 11:22:25,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 11:22:25,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 11:22:25,927 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 11:22:25,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 11:22:25,938 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 11:22:25,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 11:22:25,941 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 11:22:25,942 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 11:22:25,943 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 11:22:25,944 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 11:22:25,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 11:22:25,945 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 11:22:25,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 11:22:25,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 11:22:25,956 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 11:22:25,957 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 [2020-10-16 11:22:26,005 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 11:22:26,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 11:22:26,007 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 11:22:26,007 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 11:22:26,007 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 11:22:26,008 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 11:22:26,008 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 11:22:26,008 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 11:22:26,008 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 11:22:26,008 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 11:22:26,009 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 11:22:26,009 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 11:22:26,009 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 11:22:26,009 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 11:22:26,009 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 11:22:26,010 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 11:22:26,010 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 11:22:26,010 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 11:22:26,010 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 11:22:26,010 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 11:22:26,011 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 11:22:26,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:22:26,011 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 11:22:26,011 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 11:22:26,011 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 11:22:26,012 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 11:22:26,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 11:22:26,012 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 11:22:26,012 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-16 11:22:26,012 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 11:22:26,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 11:22:26,340 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 11:22:26,346 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 11:22:26,347 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 11:22:26,348 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 11:22:26,349 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.opt.i [2020-10-16 11:22:26,418 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d9cd1b519/78a8fd9ca1714fb693a39e618aed8530/FLAG61e41e37f [2020-10-16 11:22:26,949 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 11:22:26,950 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe034_tso.opt.i [2020-10-16 11:22:26,966 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d9cd1b519/78a8fd9ca1714fb693a39e618aed8530/FLAG61e41e37f [2020-10-16 11:22:27,253 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d9cd1b519/78a8fd9ca1714fb693a39e618aed8530 [2020-10-16 11:22:27,262 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 11:22:27,264 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 11:22:27,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 11:22:27,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 11:22:27,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 11:22:27,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:22:27" (1/1) ... [2020-10-16 11:22:27,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70a78847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:27, skipping insertion in model container [2020-10-16 11:22:27,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:22:27" (1/1) ... [2020-10-16 11:22:27,283 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 11:22:27,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 11:22:27,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:22:27,905 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 11:22:27,987 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:22:28,060 INFO L208 MainTranslator]: Completed translation [2020-10-16 11:22:28,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:28 WrapperNode [2020-10-16 11:22:28,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 11:22:28,062 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 11:22:28,062 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 11:22:28,062 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 11:22:28,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:28" (1/1) ... [2020-10-16 11:22:28,088 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:28" (1/1) ... [2020-10-16 11:22:28,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 11:22:28,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 11:22:28,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 11:22:28,113 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 11:22:28,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:28" (1/1) ... [2020-10-16 11:22:28,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:28" (1/1) ... [2020-10-16 11:22:28,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:28" (1/1) ... [2020-10-16 11:22:28,124 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:28" (1/1) ... [2020-10-16 11:22:28,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:28" (1/1) ... [2020-10-16 11:22:28,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:28" (1/1) ... [2020-10-16 11:22:28,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:28" (1/1) ... [2020-10-16 11:22:28,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 11:22:28,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 11:22:28,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 11:22:28,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 11:22:28,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:28" (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 [2020-10-16 11:22:28,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 11:22:28,211 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 11:22:28,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 11:22:28,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 11:22:28,212 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 11:22:28,212 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 11:22:28,212 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 11:22:28,212 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 11:22:28,212 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 11:22:28,212 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 11:22:28,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 11:22:28,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 11:22:28,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 11:22:28,215 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 11:22:28,639 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 11:22:28,640 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 11:22:28,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:22:28 BoogieIcfgContainer [2020-10-16 11:22:28,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 11:22:28,644 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 11:22:28,645 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 11:22:28,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 11:22:28,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:22:27" (1/3) ... [2020-10-16 11:22:28,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@304e43fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:22:28, skipping insertion in model container [2020-10-16 11:22:28,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:22:28" (2/3) ... [2020-10-16 11:22:28,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@304e43fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:22:28, skipping insertion in model container [2020-10-16 11:22:28,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:22:28" (3/3) ... [2020-10-16 11:22:28,653 INFO L111 eAbstractionObserver]: Analyzing ICFG safe034_tso.opt.i [2020-10-16 11:22:28,664 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 11:22:28,665 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 11:22:28,673 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 11:22:28,674 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 11:22:28,703 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:28,703 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:28,704 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:28,704 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:28,705 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:28,705 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:28,705 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:28,706 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:28,706 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:28,706 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:28,707 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:28,707 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:28,707 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:28,708 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:28,708 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:28,708 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:28,709 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:28,709 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:28,713 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:28,713 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:28,714 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:28,714 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:28,726 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:28,727 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:28,728 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:28,728 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:28,732 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:28,732 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:28,732 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:28,733 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:22:28,735 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 11:22:28,749 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 11:22:28,768 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:22:28,768 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:22:28,768 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 11:22:28,768 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:22:28,768 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:22:28,769 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:22:28,769 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:22:28,769 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:22:28,783 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 11:22:28,787 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-16 11:22:28,790 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-16 11:22:28,793 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-16 11:22:28,841 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-16 11:22:28,841 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 11:22:28,847 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-16 11:22:28,850 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-16 11:22:30,482 INFO L132 LiptonReduction]: Checked pairs total: 2842 [2020-10-16 11:22:30,483 INFO L134 LiptonReduction]: Total number of compositions: 61 [2020-10-16 11:22:30,490 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-16 11:22:30,519 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-16 11:22:30,521 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-16 11:22:30,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 11:22:30,530 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:30,530 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:30,531 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:30,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:30,537 INFO L82 PathProgramCache]: Analyzing trace with hash 760003701, now seen corresponding path program 1 times [2020-10-16 11:22:30,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:30,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672041276] [2020-10-16 11:22:30,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:30,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:30,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:22:30,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672041276] [2020-10-16 11:22:30,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:30,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 11:22:30,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264191174] [2020-10-16 11:22:30,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:22:30,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:30,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:22:30,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:22:30,805 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-16 11:22:30,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:30,856 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-10-16 11:22:30,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:22:30,858 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 11:22:30,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:30,875 INFO L225 Difference]: With dead ends: 290 [2020-10-16 11:22:30,875 INFO L226 Difference]: Without dead ends: 226 [2020-10-16 11:22:30,877 INFO L677 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 [2020-10-16 11:22:30,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-16 11:22:30,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-16 11:22:30,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-16 11:22:30,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-10-16 11:22:30,949 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-10-16 11:22:30,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:30,950 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-10-16 11:22:30,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:22:30,950 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-10-16 11:22:30,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 11:22:30,952 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:30,954 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:30,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 11:22:30,955 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:30,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:30,955 INFO L82 PathProgramCache]: Analyzing trace with hash 2069729619, now seen corresponding path program 1 times [2020-10-16 11:22:30,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:30,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573628828] [2020-10-16 11:22:30,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:31,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:31,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:22:31,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573628828] [2020-10-16 11:22:31,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:31,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:22:31,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623812384] [2020-10-16 11:22:31,101 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:22:31,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:31,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:22:31,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:22:31,102 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 4 states. [2020-10-16 11:22:31,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:31,150 INFO L93 Difference]: Finished difference Result 242 states and 605 transitions. [2020-10-16 11:22:31,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:22:31,151 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-16 11:22:31,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:31,154 INFO L225 Difference]: With dead ends: 242 [2020-10-16 11:22:31,154 INFO L226 Difference]: Without dead ends: 178 [2020-10-16 11:22:31,155 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 [2020-10-16 11:22:31,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-10-16 11:22:31,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2020-10-16 11:22:31,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-10-16 11:22:31,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 434 transitions. [2020-10-16 11:22:31,174 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 434 transitions. Word has length 9 [2020-10-16 11:22:31,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:31,174 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 434 transitions. [2020-10-16 11:22:31,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:22:31,174 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 434 transitions. [2020-10-16 11:22:31,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 11:22:31,176 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:31,176 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:31,177 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 11:22:31,177 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:31,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:31,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1183022512, now seen corresponding path program 1 times [2020-10-16 11:22:31,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:31,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484294471] [2020-10-16 11:22:31,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:31,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:22:31,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484294471] [2020-10-16 11:22:31,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:31,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:22:31,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714989387] [2020-10-16 11:22:31,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:22:31,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:31,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:22:31,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:22:31,292 INFO L87 Difference]: Start difference. First operand 178 states and 434 transitions. Second operand 5 states. [2020-10-16 11:22:31,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:31,342 INFO L93 Difference]: Finished difference Result 163 states and 368 transitions. [2020-10-16 11:22:31,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 11:22:31,342 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-16 11:22:31,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:31,344 INFO L225 Difference]: With dead ends: 163 [2020-10-16 11:22:31,344 INFO L226 Difference]: Without dead ends: 126 [2020-10-16 11:22:31,345 INFO L677 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 [2020-10-16 11:22:31,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-10-16 11:22:31,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-10-16 11:22:31,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-16 11:22:31,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 278 transitions. [2020-10-16 11:22:31,355 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 278 transitions. Word has length 11 [2020-10-16 11:22:31,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:31,355 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 278 transitions. [2020-10-16 11:22:31,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:22:31,356 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 278 transitions. [2020-10-16 11:22:31,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 11:22:31,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:31,357 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:31,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 11:22:31,358 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:31,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:31,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1548024821, now seen corresponding path program 1 times [2020-10-16 11:22:31,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:31,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144988592] [2020-10-16 11:22:31,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:31,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:31,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:22:31,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144988592] [2020-10-16 11:22:31,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:31,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 11:22:31,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676473550] [2020-10-16 11:22:31,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 11:22:31,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:31,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 11:22:31,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 11:22:31,444 INFO L87 Difference]: Start difference. First operand 126 states and 278 transitions. Second operand 6 states. [2020-10-16 11:22:31,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:31,504 INFO L93 Difference]: Finished difference Result 118 states and 260 transitions. [2020-10-16 11:22:31,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 11:22:31,504 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-16 11:22:31,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:31,506 INFO L225 Difference]: With dead ends: 118 [2020-10-16 11:22:31,506 INFO L226 Difference]: Without dead ends: 108 [2020-10-16 11:22:31,506 INFO L677 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 [2020-10-16 11:22:31,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-16 11:22:31,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-10-16 11:22:31,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-16 11:22:31,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 242 transitions. [2020-10-16 11:22:31,514 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 242 transitions. Word has length 14 [2020-10-16 11:22:31,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:31,514 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 242 transitions. [2020-10-16 11:22:31,514 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 11:22:31,514 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 242 transitions. [2020-10-16 11:22:31,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 11:22:31,516 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:31,516 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:31,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 11:22:31,517 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:31,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:31,517 INFO L82 PathProgramCache]: Analyzing trace with hash 2137678742, now seen corresponding path program 1 times [2020-10-16 11:22:31,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:31,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310630270] [2020-10-16 11:22:31,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:31,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:22:31,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310630270] [2020-10-16 11:22:31,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:31,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:22:31,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753919139] [2020-10-16 11:22:31,558 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:22:31,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:31,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:22:31,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:22:31,559 INFO L87 Difference]: Start difference. First operand 108 states and 242 transitions. Second operand 3 states. [2020-10-16 11:22:31,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:31,593 INFO L93 Difference]: Finished difference Result 133 states and 289 transitions. [2020-10-16 11:22:31,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:22:31,593 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-16 11:22:31,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:31,594 INFO L225 Difference]: With dead ends: 133 [2020-10-16 11:22:31,594 INFO L226 Difference]: Without dead ends: 54 [2020-10-16 11:22:31,595 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:22:31,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-16 11:22:31,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-16 11:22:31,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-16 11:22:31,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2020-10-16 11:22:31,599 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 17 [2020-10-16 11:22:31,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:31,599 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2020-10-16 11:22:31,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:22:31,599 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-10-16 11:22:31,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 11:22:31,600 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:31,600 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:31,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 11:22:31,601 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:31,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:31,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1164645812, now seen corresponding path program 2 times [2020-10-16 11:22:31,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:31,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042062202] [2020-10-16 11:22:31,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:31,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:31,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:22:31,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042062202] [2020-10-16 11:22:31,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:31,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:22:31,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121954240] [2020-10-16 11:22:31,653 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:22:31,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:31,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:22:31,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:22:31,654 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 4 states. [2020-10-16 11:22:31,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:31,669 INFO L93 Difference]: Finished difference Result 67 states and 119 transitions. [2020-10-16 11:22:31,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:22:31,669 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-16 11:22:31,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:31,670 INFO L225 Difference]: With dead ends: 67 [2020-10-16 11:22:31,670 INFO L226 Difference]: Without dead ends: 30 [2020-10-16 11:22:31,671 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:22:31,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-16 11:22:31,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-16 11:22:31,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-16 11:22:31,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-10-16 11:22:31,673 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-10-16 11:22:31,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:31,674 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-10-16 11:22:31,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:22:31,674 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-10-16 11:22:31,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 11:22:31,675 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:22:31,675 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:22:31,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 11:22:31,675 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:22:31,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:22:31,676 INFO L82 PathProgramCache]: Analyzing trace with hash 2098338434, now seen corresponding path program 3 times [2020-10-16 11:22:31,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:22:31,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181865215] [2020-10-16 11:22:31,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:22:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:22:31,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:22:31,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181865215] [2020-10-16 11:22:31,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:22:31,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:22:31,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090756782] [2020-10-16 11:22:31,715 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:22:31,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:22:31,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:22:31,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:22:31,716 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-10-16 11:22:31,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:22:31,729 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-10-16 11:22:31,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:22:31,730 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-16 11:22:31,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:22:31,730 INFO L225 Difference]: With dead ends: 29 [2020-10-16 11:22:31,730 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 11:22:31,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:22:31,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 11:22:31,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 11:22:31,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 11:22:31,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 11:22:31,732 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-16 11:22:31,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:22:31,732 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 11:22:31,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:22:31,732 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 11:22:31,733 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 11:22:31,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 11:22:31,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:22:31 BasicIcfg [2020-10-16 11:22:31,737 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 11:22:31,740 INFO L168 Benchmark]: Toolchain (without parser) took 4475.22 ms. Allocated memory was 138.9 MB in the beginning and 250.1 MB in the end (delta: 111.1 MB). Free memory was 100.5 MB in the beginning and 194.3 MB in the end (delta: -93.8 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB. [2020-10-16 11:22:31,741 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-10-16 11:22:31,742 INFO L168 Benchmark]: CACSL2BoogieTranslator took 796.32 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 100.3 MB in the beginning and 156.2 MB in the end (delta: -55.9 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-10-16 11:22:31,743 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.48 ms. Allocated memory is still 201.3 MB. Free memory was 156.2 MB in the beginning and 153.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-10-16 11:22:31,744 INFO L168 Benchmark]: Boogie Preprocessor took 25.63 ms. Allocated memory is still 201.3 MB. Free memory was 153.9 MB in the beginning and 152.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-16 11:22:31,745 INFO L168 Benchmark]: RCFGBuilder took 504.18 ms. Allocated memory is still 201.3 MB. Free memory was 152.5 MB in the beginning and 129.5 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2020-10-16 11:22:31,746 INFO L168 Benchmark]: TraceAbstraction took 3092.70 ms. Allocated memory was 201.3 MB in the beginning and 250.1 MB in the end (delta: 48.8 MB). Free memory was 129.5 MB in the beginning and 194.3 MB in the end (delta: -64.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 11:22:31,750 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 796.32 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 100.3 MB in the beginning and 156.2 MB in the end (delta: -55.9 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.48 ms. Allocated memory is still 201.3 MB. Free memory was 156.2 MB in the beginning and 153.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.63 ms. Allocated memory is still 201.3 MB. Free memory was 153.9 MB in the beginning and 152.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 504.18 ms. Allocated memory is still 201.3 MB. Free memory was 152.5 MB in the beginning and 129.5 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3092.70 ms. Allocated memory was 201.3 MB in the beginning and 250.1 MB in the end (delta: 48.8 MB). Free memory was 129.5 MB in the beginning and 194.3 MB in the end (delta: -64.8 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 862 VarBasedMoverChecksPositive, 40 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 32 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 70 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 78 PlacesBefore, 31 PlacesAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 61 TotalNumberOfCompositions, 2842 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 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 141 SDtfs, 114 SDslu, 191 SDs, 0 SdLazy, 96 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 2838 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...