/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/pthread-wmm/thin002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 23:40:18,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 23:40:18,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 23:40:19,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 23:40:19,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 23:40:19,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 23:40:19,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 23:40:19,020 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 23:40:19,022 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 23:40:19,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 23:40:19,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 23:40:19,026 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 23:40:19,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 23:40:19,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 23:40:19,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 23:40:19,030 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 23:40:19,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 23:40:19,032 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 23:40:19,034 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 23:40:19,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 23:40:19,039 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 23:40:19,040 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 23:40:19,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 23:40:19,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 23:40:19,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-06 23:40:19,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 23:40:19,052 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 23:40:19,053 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 23:40:19,054 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 23:40:19,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 23:40:19,063 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 23:40:19,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 23:40:19,068 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 23:40:19,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 23:40:19,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 23:40:19,071 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 23:40:19,073 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 23:40:19,123 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 23:40:19,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 23:40:19,129 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 23:40:19,129 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 23:40:19,129 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 23:40:19,130 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 23:40:19,130 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 23:40:19,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 23:40:19,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 23:40:19,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 23:40:19,132 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 23:40:19,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 23:40:19,132 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 23:40:19,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 23:40:19,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 23:40:19,133 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 23:40:19,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 23:40:19,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 23:40:19,134 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 23:40:19,134 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 23:40:19,134 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 23:40:19,134 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 23:40:19,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 23:40:19,135 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 23:40:19,135 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 23:40:19,135 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 23:40:19,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 23:40:19,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 23:40:19,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 23:40:19,581 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 23:40:19,584 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 23:40:19,585 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/thin002_tso.oepc.i [2021-01-06 23:40:19,674 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/97ab5e540/0011d1ac3bd646159d6bd2f51fb50b0d/FLAG8b2e8a8e7 [2021-01-06 23:40:20,363 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 23:40:20,366 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin002_tso.oepc.i [2021-01-06 23:40:20,395 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/97ab5e540/0011d1ac3bd646159d6bd2f51fb50b0d/FLAG8b2e8a8e7 [2021-01-06 23:40:20,417 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/97ab5e540/0011d1ac3bd646159d6bd2f51fb50b0d [2021-01-06 23:40:20,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 23:40:20,422 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 23:40:20,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 23:40:20,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 23:40:20,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 23:40:20,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:40:20" (1/1) ... [2021-01-06 23:40:20,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22451cb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:40:20, skipping insertion in model container [2021-01-06 23:40:20,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:40:20" (1/1) ... [2021-01-06 23:40:20,438 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 23:40:20,480 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 23:40:20,646 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin002_tso.oepc.i[950,963] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p1_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~z~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p3_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2021-01-06 23:40:20,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:40:20,905 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 23:40:20,921 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin002_tso.oepc.i[950,963] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p1_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~z~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p3_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2021-01-06 23:40:20,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:40:21,111 INFO L208 MainTranslator]: Completed translation [2021-01-06 23:40:21,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:40:21 WrapperNode [2021-01-06 23:40:21,112 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 23:40:21,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 23:40:21,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 23:40:21,114 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 23:40:21,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:40:21" (1/1) ... [2021-01-06 23:40:21,138 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:40:21" (1/1) ... [2021-01-06 23:40:21,161 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 23:40:21,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 23:40:21,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 23:40:21,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 23:40:21,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:40:21" (1/1) ... [2021-01-06 23:40:21,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:40:21" (1/1) ... [2021-01-06 23:40:21,174 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:40:21" (1/1) ... [2021-01-06 23:40:21,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:40:21" (1/1) ... [2021-01-06 23:40:21,181 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:40:21" (1/1) ... [2021-01-06 23:40:21,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:40:21" (1/1) ... [2021-01-06 23:40:21,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:40:21" (1/1) ... [2021-01-06 23:40:21,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 23:40:21,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 23:40:21,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 23:40:21,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 23:40:21,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:40:21" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-06 23:40:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 23:40:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-06 23:40:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 23:40:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 23:40:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-06 23:40:21,303 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-06 23:40:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-06 23:40:21,304 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-06 23:40:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-06 23:40:21,304 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-06 23:40:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-01-06 23:40:21,304 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-01-06 23:40:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 23:40:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-06 23:40:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 23:40:21,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 23:40:21,307 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-06 23:40:21,745 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 23:40:21,745 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-01-06 23:40:21,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:40:21 BoogieIcfgContainer [2021-01-06 23:40:21,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 23:40:21,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 23:40:21,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 23:40:21,753 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 23:40:21,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 11:40:20" (1/3) ... [2021-01-06 23:40:21,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b9408a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:40:21, skipping insertion in model container [2021-01-06 23:40:21,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:40:21" (2/3) ... [2021-01-06 23:40:21,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b9408a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:40:21, skipping insertion in model container [2021-01-06 23:40:21,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:40:21" (3/3) ... [2021-01-06 23:40:21,757 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.oepc.i [2021-01-06 23:40:21,763 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-06 23:40:21,764 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 23:40:21,768 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 23:40:21,769 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-06 23:40:21,806 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,807 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,807 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,807 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,807 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,808 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,808 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,808 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,808 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,809 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,809 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,809 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,810 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,810 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,810 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,811 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,811 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,811 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,811 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,811 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,812 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,812 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,812 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,813 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,813 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,813 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,813 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,814 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,814 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,814 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,814 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,814 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,815 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,815 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,815 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,815 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,816 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,816 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,816 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,816 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,817 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,817 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,817 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,817 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,818 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,818 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,818 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,818 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,821 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,821 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,821 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,821 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,826 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,827 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,827 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,827 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,829 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,830 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,830 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,830 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,832 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,832 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,832 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,833 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:21,834 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-06 23:40:21,856 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-01-06 23:40:21,879 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 23:40:21,879 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 23:40:21,879 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 23:40:21,879 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 23:40:21,880 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 23:40:21,880 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 23:40:21,880 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 23:40:21,880 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 23:40:21,893 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-01-06 23:40:21,896 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 91 transitions, 202 flow [2021-01-06 23:40:21,899 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 91 transitions, 202 flow [2021-01-06 23:40:21,902 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 91 transitions, 202 flow [2021-01-06 23:40:21,956 INFO L129 PetriNetUnfolder]: 2/87 cut-off events. [2021-01-06 23:40:21,956 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-01-06 23:40:21,962 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 87 events. 2/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2021-01-06 23:40:21,966 INFO L116 LiptonReduction]: Number of co-enabled transitions 2064 [2021-01-06 23:40:24,916 WARN L197 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2021-01-06 23:40:25,251 WARN L197 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2021-01-06 23:40:25,355 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-01-06 23:40:25,362 INFO L131 LiptonReduction]: Checked pairs total: 4338 [2021-01-06 23:40:25,362 INFO L133 LiptonReduction]: Total number of compositions: 72 [2021-01-06 23:40:25,369 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 29 transitions, 78 flow [2021-01-06 23:40:25,496 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1450 states. [2021-01-06 23:40:25,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2021-01-06 23:40:25,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-01-06 23:40:25,511 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:40:25,512 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:40:25,513 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:40:25,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:40:25,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1256759632, now seen corresponding path program 1 times [2021-01-06 23:40:25,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:40:25,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272599203] [2021-01-06 23:40:25,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:40:25,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:40:25,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:40:25,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272599203] [2021-01-06 23:40:25,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:40:25,746 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:40:25,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269809430] [2021-01-06 23:40:25,752 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 23:40:25,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:40:25,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 23:40:25,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 23:40:25,773 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 2 states. [2021-01-06 23:40:25,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:40:25,844 INFO L93 Difference]: Finished difference Result 1450 states and 5376 transitions. [2021-01-06 23:40:25,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 23:40:25,845 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2021-01-06 23:40:25,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:40:25,891 INFO L225 Difference]: With dead ends: 1450 [2021-01-06 23:40:25,891 INFO L226 Difference]: Without dead ends: 1194 [2021-01-06 23:40:25,893 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 23:40:25,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2021-01-06 23:40:26,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2021-01-06 23:40:26,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2021-01-06 23:40:26,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 4352 transitions. [2021-01-06 23:40:26,036 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 4352 transitions. Word has length 10 [2021-01-06 23:40:26,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:40:26,037 INFO L481 AbstractCegarLoop]: Abstraction has 1194 states and 4352 transitions. [2021-01-06 23:40:26,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 23:40:26,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 4352 transitions. [2021-01-06 23:40:26,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-01-06 23:40:26,039 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:40:26,040 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:40:26,040 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 23:40:26,040 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:40:26,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:40:26,041 INFO L82 PathProgramCache]: Analyzing trace with hash -304847029, now seen corresponding path program 1 times [2021-01-06 23:40:26,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:40:26,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909121295] [2021-01-06 23:40:26,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:40:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:40:26,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:40:26,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909121295] [2021-01-06 23:40:26,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:40:26,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:40:26,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671864617] [2021-01-06 23:40:26,241 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:40:26,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:40:26,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:40:26,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:40:26,242 INFO L87 Difference]: Start difference. First operand 1194 states and 4352 transitions. Second operand 4 states. [2021-01-06 23:40:26,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:40:26,305 INFO L93 Difference]: Finished difference Result 1448 states and 5111 transitions. [2021-01-06 23:40:26,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:40:26,306 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2021-01-06 23:40:26,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:40:26,317 INFO L225 Difference]: With dead ends: 1448 [2021-01-06 23:40:26,317 INFO L226 Difference]: Without dead ends: 1192 [2021-01-06 23:40:26,318 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 [2021-01-06 23:40:26,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2021-01-06 23:40:26,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1192. [2021-01-06 23:40:26,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1192 states. [2021-01-06 23:40:26,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 4342 transitions. [2021-01-06 23:40:26,370 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 4342 transitions. Word has length 11 [2021-01-06 23:40:26,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:40:26,371 INFO L481 AbstractCegarLoop]: Abstraction has 1192 states and 4342 transitions. [2021-01-06 23:40:26,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:40:26,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 4342 transitions. [2021-01-06 23:40:26,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-01-06 23:40:26,373 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:40:26,373 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:40:26,373 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 23:40:26,374 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:40:26,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:40:26,374 INFO L82 PathProgramCache]: Analyzing trace with hash -835567243, now seen corresponding path program 1 times [2021-01-06 23:40:26,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:40:26,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707386481] [2021-01-06 23:40:26,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:40:26,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:40:26,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:40:26,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707386481] [2021-01-06 23:40:26,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:40:26,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:40:26,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660156549] [2021-01-06 23:40:26,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:40:26,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:40:26,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:40:26,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:40:26,453 INFO L87 Difference]: Start difference. First operand 1192 states and 4342 transitions. Second operand 5 states. [2021-01-06 23:40:26,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:40:26,538 INFO L93 Difference]: Finished difference Result 1318 states and 4624 transitions. [2021-01-06 23:40:26,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:40:26,539 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2021-01-06 23:40:26,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:40:26,549 INFO L225 Difference]: With dead ends: 1318 [2021-01-06 23:40:26,549 INFO L226 Difference]: Without dead ends: 1066 [2021-01-06 23:40:26,549 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-01-06 23:40:26,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2021-01-06 23:40:26,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2021-01-06 23:40:26,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2021-01-06 23:40:26,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3808 transitions. [2021-01-06 23:40:26,596 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3808 transitions. Word has length 12 [2021-01-06 23:40:26,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:40:26,597 INFO L481 AbstractCegarLoop]: Abstraction has 1066 states and 3808 transitions. [2021-01-06 23:40:26,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:40:26,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3808 transitions. [2021-01-06 23:40:26,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-01-06 23:40:26,601 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:40:26,601 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:40:26,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 23:40:26,602 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:40:26,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:40:26,605 INFO L82 PathProgramCache]: Analyzing trace with hash -862200397, now seen corresponding path program 1 times [2021-01-06 23:40:26,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:40:26,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407802689] [2021-01-06 23:40:26,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:40:26,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:40:26,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:40:26,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407802689] [2021-01-06 23:40:26,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:40:26,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:40:26,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474795579] [2021-01-06 23:40:26,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:40:26,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:40:26,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:40:26,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:40:26,734 INFO L87 Difference]: Start difference. First operand 1066 states and 3808 transitions. Second operand 5 states. [2021-01-06 23:40:26,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:40:26,838 INFO L93 Difference]: Finished difference Result 1927 states and 6692 transitions. [2021-01-06 23:40:26,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 23:40:26,838 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2021-01-06 23:40:26,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:40:26,851 INFO L225 Difference]: With dead ends: 1927 [2021-01-06 23:40:26,851 INFO L226 Difference]: Without dead ends: 1384 [2021-01-06 23:40:26,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-01-06 23:40:26,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2021-01-06 23:40:26,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1384. [2021-01-06 23:40:26,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1384 states. [2021-01-06 23:40:26,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 4860 transitions. [2021-01-06 23:40:26,934 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 4860 transitions. Word has length 12 [2021-01-06 23:40:26,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:40:26,934 INFO L481 AbstractCegarLoop]: Abstraction has 1384 states and 4860 transitions. [2021-01-06 23:40:26,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:40:26,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 4860 transitions. [2021-01-06 23:40:26,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 23:40:26,936 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:40:26,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:40:26,937 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 23:40:26,937 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:40:26,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:40:26,937 INFO L82 PathProgramCache]: Analyzing trace with hash -959570637, now seen corresponding path program 1 times [2021-01-06 23:40:26,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:40:26,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334499057] [2021-01-06 23:40:26,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:40:26,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:40:27,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:40:27,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334499057] [2021-01-06 23:40:27,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:40:27,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:40:27,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433315628] [2021-01-06 23:40:27,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 23:40:27,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:40:27,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 23:40:27,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-01-06 23:40:27,059 INFO L87 Difference]: Start difference. First operand 1384 states and 4860 transitions. Second operand 6 states. [2021-01-06 23:40:27,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:40:27,121 INFO L93 Difference]: Finished difference Result 1579 states and 5434 transitions. [2021-01-06 23:40:27,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:40:27,122 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2021-01-06 23:40:27,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:40:27,127 INFO L225 Difference]: With dead ends: 1579 [2021-01-06 23:40:27,127 INFO L226 Difference]: Without dead ends: 556 [2021-01-06 23:40:27,127 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-01-06 23:40:27,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2021-01-06 23:40:27,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2021-01-06 23:40:27,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2021-01-06 23:40:27,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 1826 transitions. [2021-01-06 23:40:27,148 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 1826 transitions. Word has length 13 [2021-01-06 23:40:27,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:40:27,148 INFO L481 AbstractCegarLoop]: Abstraction has 556 states and 1826 transitions. [2021-01-06 23:40:27,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 23:40:27,149 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 1826 transitions. [2021-01-06 23:40:27,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-01-06 23:40:27,150 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:40:27,150 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:40:27,150 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 23:40:27,150 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:40:27,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:40:27,151 INFO L82 PathProgramCache]: Analyzing trace with hash 638958007, now seen corresponding path program 1 times [2021-01-06 23:40:27,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:40:27,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408365659] [2021-01-06 23:40:27,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:40:27,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:40:27,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:40:27,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408365659] [2021-01-06 23:40:27,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:40:27,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:40:27,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498463752] [2021-01-06 23:40:27,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 23:40:27,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:40:27,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 23:40:27,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-01-06 23:40:27,211 INFO L87 Difference]: Start difference. First operand 556 states and 1826 transitions. Second operand 6 states. [2021-01-06 23:40:27,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:40:27,258 INFO L93 Difference]: Finished difference Result 700 states and 2230 transitions. [2021-01-06 23:40:27,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:40:27,258 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2021-01-06 23:40:27,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:40:27,261 INFO L225 Difference]: With dead ends: 700 [2021-01-06 23:40:27,261 INFO L226 Difference]: Without dead ends: 316 [2021-01-06 23:40:27,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-01-06 23:40:27,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2021-01-06 23:40:27,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2021-01-06 23:40:27,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2021-01-06 23:40:27,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 934 transitions. [2021-01-06 23:40:27,272 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 934 transitions. Word has length 14 [2021-01-06 23:40:27,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:40:27,273 INFO L481 AbstractCegarLoop]: Abstraction has 316 states and 934 transitions. [2021-01-06 23:40:27,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 23:40:27,273 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 934 transitions. [2021-01-06 23:40:27,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-01-06 23:40:27,274 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:40:27,274 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:40:27,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 23:40:27,274 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:40:27,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:40:27,275 INFO L82 PathProgramCache]: Analyzing trace with hash 2113265253, now seen corresponding path program 1 times [2021-01-06 23:40:27,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:40:27,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344989173] [2021-01-06 23:40:27,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:40:27,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:40:27,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:40:27,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344989173] [2021-01-06 23:40:27,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:40:27,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:40:27,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274840551] [2021-01-06 23:40:27,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:40:27,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:40:27,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:40:27,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:40:27,331 INFO L87 Difference]: Start difference. First operand 316 states and 934 transitions. Second operand 5 states. [2021-01-06 23:40:27,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:40:27,389 INFO L93 Difference]: Finished difference Result 340 states and 974 transitions. [2021-01-06 23:40:27,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:40:27,390 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2021-01-06 23:40:27,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:40:27,392 INFO L225 Difference]: With dead ends: 340 [2021-01-06 23:40:27,392 INFO L226 Difference]: Without dead ends: 292 [2021-01-06 23:40:27,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-01-06 23:40:27,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2021-01-06 23:40:27,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2021-01-06 23:40:27,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2021-01-06 23:40:27,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 846 transitions. [2021-01-06 23:40:27,403 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 846 transitions. Word has length 16 [2021-01-06 23:40:27,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:40:27,403 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 846 transitions. [2021-01-06 23:40:27,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:40:27,404 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 846 transitions. [2021-01-06 23:40:27,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-06 23:40:27,404 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:40:27,406 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:40:27,406 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 23:40:27,406 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:40:27,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:40:27,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1420368766, now seen corresponding path program 1 times [2021-01-06 23:40:27,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:40:27,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867296587] [2021-01-06 23:40:27,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:40:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:40:27,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:40:27,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867296587] [2021-01-06 23:40:27,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:40:27,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:40:27,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842286073] [2021-01-06 23:40:27,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 23:40:27,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:40:27,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 23:40:27,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-01-06 23:40:27,471 INFO L87 Difference]: Start difference. First operand 292 states and 846 transitions. Second operand 6 states. [2021-01-06 23:40:27,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:40:27,517 INFO L93 Difference]: Finished difference Result 352 states and 1006 transitions. [2021-01-06 23:40:27,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:40:27,518 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2021-01-06 23:40:27,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:40:27,519 INFO L225 Difference]: With dead ends: 352 [2021-01-06 23:40:27,519 INFO L226 Difference]: Without dead ends: 154 [2021-01-06 23:40:27,520 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-01-06 23:40:27,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-01-06 23:40:27,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2021-01-06 23:40:27,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2021-01-06 23:40:27,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 410 transitions. [2021-01-06 23:40:27,525 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 410 transitions. Word has length 17 [2021-01-06 23:40:27,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:40:27,526 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 410 transitions. [2021-01-06 23:40:27,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 23:40:27,526 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 410 transitions. [2021-01-06 23:40:27,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-06 23:40:27,526 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:40:27,527 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:40:27,527 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 23:40:27,527 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:40:27,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:40:27,527 INFO L82 PathProgramCache]: Analyzing trace with hash -673573280, now seen corresponding path program 1 times [2021-01-06 23:40:27,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:40:27,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15171380] [2021-01-06 23:40:27,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:40:27,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:40:27,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:40:27,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15171380] [2021-01-06 23:40:27,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:40:27,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:40:27,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053692541] [2021-01-06 23:40:27,629 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 23:40:27,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:40:27,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 23:40:27,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-01-06 23:40:27,630 INFO L87 Difference]: Start difference. First operand 154 states and 410 transitions. Second operand 6 states. [2021-01-06 23:40:27,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:40:27,663 INFO L93 Difference]: Finished difference Result 130 states and 334 transitions. [2021-01-06 23:40:27,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:40:27,663 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2021-01-06 23:40:27,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:40:27,664 INFO L225 Difference]: With dead ends: 130 [2021-01-06 23:40:27,664 INFO L226 Difference]: Without dead ends: 0 [2021-01-06 23:40:27,664 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-01-06 23:40:27,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-01-06 23:40:27,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-01-06 23:40:27,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-01-06 23:40:27,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-01-06 23:40:27,665 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-01-06 23:40:27,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:40:27,665 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-01-06 23:40:27,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 23:40:27,666 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-01-06 23:40:27,666 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-06 23:40:27,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 23:40:27,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 11:40:27 BasicIcfg [2021-01-06 23:40:27,670 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 23:40:27,670 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 23:40:27,670 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 23:40:27,670 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 23:40:27,671 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:40:21" (3/4) ... [2021-01-06 23:40:27,675 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-01-06 23:40:27,682 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-01-06 23:40:27,682 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-01-06 23:40:27,682 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2021-01-06 23:40:27,682 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2021-01-06 23:40:27,689 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-01-06 23:40:27,690 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-01-06 23:40:27,690 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:40:27,690 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:40:27,736 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/thin002_tso.oepc.i-witness.graphml [2021-01-06 23:40:27,736 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 23:40:27,738 INFO L168 Benchmark]: Toolchain (without parser) took 7315.94 ms. Allocated memory was 165.7 MB in the beginning and 253.8 MB in the end (delta: 88.1 MB). Free memory was 139.3 MB in the beginning and 180.9 MB in the end (delta: -41.7 MB). Peak memory consumption was 46.5 MB. Max. memory is 8.0 GB. [2021-01-06 23:40:27,738 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 165.7 MB. Free memory is still 140.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 23:40:27,739 INFO L168 Benchmark]: CACSL2BoogieTranslator took 688.80 ms. Allocated memory is still 165.7 MB. Free memory was 138.9 MB in the beginning and 143.6 MB in the end (delta: -4.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. [2021-01-06 23:40:27,739 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.34 ms. Allocated memory is still 165.7 MB. Free memory was 143.6 MB in the beginning and 141.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:40:27,740 INFO L168 Benchmark]: Boogie Preprocessor took 27.79 ms. Allocated memory is still 165.7 MB. Free memory was 141.5 MB in the beginning and 139.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:40:27,741 INFO L168 Benchmark]: RCFGBuilder took 557.56 ms. Allocated memory is still 165.7 MB. Free memory was 139.9 MB in the beginning and 115.3 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:40:27,741 INFO L168 Benchmark]: TraceAbstraction took 5920.17 ms. Allocated memory was 165.7 MB in the beginning and 253.8 MB in the end (delta: 88.1 MB). Free memory was 114.7 MB in the beginning and 184.1 MB in the end (delta: -69.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 8.0 GB. [2021-01-06 23:40:27,742 INFO L168 Benchmark]: Witness Printer took 66.41 ms. Allocated memory is still 253.8 MB. Free memory was 184.1 MB in the beginning and 180.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:40:27,745 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 165.7 MB. Free memory is still 140.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 688.80 ms. Allocated memory is still 165.7 MB. Free memory was 138.9 MB in the beginning and 143.6 MB in the end (delta: -4.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 47.34 ms. Allocated memory is still 165.7 MB. Free memory was 143.6 MB in the beginning and 141.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 27.79 ms. Allocated memory is still 165.7 MB. Free memory was 141.5 MB in the beginning and 139.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 557.56 ms. Allocated memory is still 165.7 MB. Free memory was 139.9 MB in the beginning and 115.3 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5920.17 ms. Allocated memory was 165.7 MB in the beginning and 253.8 MB in the end (delta: 88.1 MB). Free memory was 114.7 MB in the beginning and 184.1 MB in the end (delta: -69.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 8.0 GB. * Witness Printer took 66.41 ms. Allocated memory is still 253.8 MB. Free memory was 184.1 MB in the beginning and 180.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1519 VarBasedMoverChecksPositive, 57 VarBasedMoverChecksNegative, 13 SemBasedMoverChecksPositive, 44 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 204 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.4s, 102 PlacesBefore, 41 PlacesAfterwards, 91 TransitionsBefore, 29 TransitionsAfterwards, 2064 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 72 TotalNumberOfCompositions, 4338 MoverChecksTotal - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.7s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: 273 SDtfs, 376 SDslu, 456 SDs, 0 SdLazy, 106 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 8206 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...