/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/thin001_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 23:39:56,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 23:39:56,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 23:39:57,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 23:39:57,017 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 23:39:57,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 23:39:57,024 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 23:39:57,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 23:39:57,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 23:39:57,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 23:39:57,043 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 23:39:57,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 23:39:57,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 23:39:57,048 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 23:39:57,050 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 23:39:57,052 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 23:39:57,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 23:39:57,071 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 23:39:57,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 23:39:57,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 23:39:57,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 23:39:57,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 23:39:57,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 23:39:57,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 23:39:57,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 23:39:57,103 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 23:39:57,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 23:39:57,104 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 23:39:57,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 23:39:57,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 23:39:57,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 23:39:57,107 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 23:39:57,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 23:39:57,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 23:39:57,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 23:39:57,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 23:39:57,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 23:39:57,117 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 23:39:57,120 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 23:39:57,121 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 23:39:57,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 23:39:57,123 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 23:39:57,167 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 23:39:57,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 23:39:57,170 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 23:39:57,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 23:39:57,171 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 23:39:57,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 23:39:57,171 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 23:39:57,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 23:39:57,172 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 23:39:57,172 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 23:39:57,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 23:39:57,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 23:39:57,174 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 23:39:57,174 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 23:39:57,174 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 23:39:57,174 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 23:39:57,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 23:39:57,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 23:39:57,175 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 23:39:57,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 23:39:57,175 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 23:39:57,175 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 23:39:57,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 23:39:57,176 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 23:39:57,176 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 23:39:57,176 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 23:39:57,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 23:39:57,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 23:39:57,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 23:39:57,618 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 23:39:57,619 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 23:39:57,620 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/thin001_tso.oepc.i [2021-01-06 23:39:57,708 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/701876c3e/ef955113f7b442b9811b23e90b22c3ca/FLAGd3b4608f6 [2021-01-06 23:39:58,585 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 23:39:58,586 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin001_tso.oepc.i [2021-01-06 23:39:58,609 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/701876c3e/ef955113f7b442b9811b23e90b22c3ca/FLAGd3b4608f6 [2021-01-06 23:39:58,793 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/701876c3e/ef955113f7b442b9811b23e90b22c3ca [2021-01-06 23:39:58,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 23:39:58,798 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 23:39:58,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 23:39:58,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 23:39:58,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 23:39:58,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:39:58" (1/1) ... [2021-01-06 23:39:58,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29f9927b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:58, skipping insertion in model container [2021-01-06 23:39:58,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:39:58" (1/1) ... [2021-01-06 23:39:58,815 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 23:39:58,859 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 23:39:59,036 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/thin001_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[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2021-01-06 23:39:59,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:39:59,330 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 23:39:59,348 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin001_tso.oepc.i[950,963] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p1_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~z~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2021-01-06 23:39:59,424 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:39:59,590 INFO L208 MainTranslator]: Completed translation [2021-01-06 23:39:59,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:59 WrapperNode [2021-01-06 23:39:59,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 23:39:59,592 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 23:39:59,592 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 23:39:59,592 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 23:39:59,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:59" (1/1) ... [2021-01-06 23:39:59,621 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:59" (1/1) ... [2021-01-06 23:39:59,656 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 23:39:59,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 23:39:59,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 23:39:59,661 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 23:39:59,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:59" (1/1) ... [2021-01-06 23:39:59,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:59" (1/1) ... [2021-01-06 23:39:59,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:59" (1/1) ... [2021-01-06 23:39:59,692 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:59" (1/1) ... [2021-01-06 23:39:59,700 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:59" (1/1) ... [2021-01-06 23:39:59,707 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:59" (1/1) ... [2021-01-06 23:39:59,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:59" (1/1) ... [2021-01-06 23:39:59,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 23:39:59,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 23:39:59,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 23:39:59,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 23:39:59,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:59" (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 23:39:59,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 23:39:59,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-06 23:39:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 23:39:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 23:39:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-06 23:39:59,822 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-06 23:39:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-06 23:39:59,822 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-06 23:39:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-06 23:39:59,823 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-06 23:39:59,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 23:39:59,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-06 23:39:59,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 23:39:59,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 23:39:59,825 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 23:40:00,311 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 23:40:00,312 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-01-06 23:40:00,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:40:00 BoogieIcfgContainer [2021-01-06 23:40:00,315 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 23:40:00,316 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 23:40:00,317 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 23:40:00,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 23:40:00,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 11:39:58" (1/3) ... [2021-01-06 23:40:00,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f72efd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:40:00, skipping insertion in model container [2021-01-06 23:40:00,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:59" (2/3) ... [2021-01-06 23:40:00,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f72efd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:40:00, skipping insertion in model container [2021-01-06 23:40:00,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:40:00" (3/3) ... [2021-01-06 23:40:00,325 INFO L111 eAbstractionObserver]: Analyzing ICFG thin001_tso.oepc.i [2021-01-06 23:40:00,333 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-06 23:40:00,333 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 23:40:00,337 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 23:40:00,338 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-06 23:40:00,402 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,403 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,404 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,404 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,404 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,404 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,405 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,405 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,405 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,406 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,406 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,406 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,407 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,408 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,408 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,408 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,408 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,408 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,409 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,409 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,409 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,410 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,410 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,410 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,412 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,413 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,413 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,414 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,415 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,416 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,416 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,416 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,417 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,417 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,418 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,418 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,421 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,422 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,423 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,423 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,438 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,440 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,440 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,441 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,447 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,448 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,448 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,448 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:40:00,455 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-06 23:40:00,478 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-06 23:40:00,518 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 23:40:00,519 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 23:40:00,519 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 23:40:00,519 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 23:40:00,519 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 23:40:00,519 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 23:40:00,519 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 23:40:00,520 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 23:40:00,538 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-01-06 23:40:00,542 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 76 transitions, 167 flow [2021-01-06 23:40:00,546 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 76 transitions, 167 flow [2021-01-06 23:40:00,548 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 76 transitions, 167 flow [2021-01-06 23:40:00,631 INFO L129 PetriNetUnfolder]: 2/73 cut-off events. [2021-01-06 23:40:00,631 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-01-06 23:40:00,648 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 73 events. 2/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-01-06 23:40:00,654 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2021-01-06 23:40:03,451 WARN L197 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2021-01-06 23:40:03,764 WARN L197 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2021-01-06 23:40:03,881 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-01-06 23:40:04,140 INFO L131 LiptonReduction]: Checked pairs total: 2541 [2021-01-06 23:40:04,140 INFO L133 LiptonReduction]: Total number of compositions: 64 [2021-01-06 23:40:04,148 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2021-01-06 23:40:04,195 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2021-01-06 23:40:04,197 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2021-01-06 23:40:04,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-01-06 23:40:04,206 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:40:04,206 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:40:04,207 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:40:04,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:40:04,216 INFO L82 PathProgramCache]: Analyzing trace with hash 995547002, now seen corresponding path program 1 times [2021-01-06 23:40:04,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:40:04,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92170977] [2021-01-06 23:40:04,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:40:04,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:40:04,545 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 23:40:04,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92170977] [2021-01-06 23:40:04,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:40:04,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-01-06 23:40:04,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625939307] [2021-01-06 23:40:04,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 23:40:04,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:40:04,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 23:40:04,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:40:04,571 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2021-01-06 23:40:04,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:40:04,619 INFO L93 Difference]: Finished difference Result 360 states and 1001 transitions. [2021-01-06 23:40:04,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:40:04,621 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2021-01-06 23:40:04,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:40:04,637 INFO L225 Difference]: With dead ends: 360 [2021-01-06 23:40:04,637 INFO L226 Difference]: Without dead ends: 233 [2021-01-06 23:40:04,638 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 [2021-01-06 23:40:04,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-01-06 23:40:04,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2021-01-06 23:40:04,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2021-01-06 23:40:04,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 652 transitions. [2021-01-06 23:40:04,711 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 652 transitions. Word has length 8 [2021-01-06 23:40:04,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:40:04,712 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 652 transitions. [2021-01-06 23:40:04,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 23:40:04,713 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 652 transitions. [2021-01-06 23:40:04,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 23:40:04,714 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:40:04,714 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:40:04,715 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 23:40:04,715 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:40:04,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:40:04,716 INFO L82 PathProgramCache]: Analyzing trace with hash 755699245, now seen corresponding path program 1 times [2021-01-06 23:40:04,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:40:04,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441317354] [2021-01-06 23:40:04,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:40:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:40:04,827 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 23:40:04,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441317354] [2021-01-06 23:40:04,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:40:04,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:40:04,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062757028] [2021-01-06 23:40:04,831 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:40:04,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:40:04,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:40:04,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:40:04,833 INFO L87 Difference]: Start difference. First operand 233 states and 652 transitions. Second operand 4 states. [2021-01-06 23:40:04,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:40:04,881 INFO L93 Difference]: Finished difference Result 383 states and 1016 transitions. [2021-01-06 23:40:04,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:40:04,881 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2021-01-06 23:40:04,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:40:04,886 INFO L225 Difference]: With dead ends: 383 [2021-01-06 23:40:04,886 INFO L226 Difference]: Without dead ends: 329 [2021-01-06 23:40:04,887 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 23:40:04,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2021-01-06 23:40:04,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 284. [2021-01-06 23:40:04,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2021-01-06 23:40:04,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 779 transitions. [2021-01-06 23:40:04,926 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 779 transitions. Word has length 9 [2021-01-06 23:40:04,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:40:04,926 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 779 transitions. [2021-01-06 23:40:04,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:40:04,927 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 779 transitions. [2021-01-06 23:40:04,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 23:40:04,931 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:40:04,931 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:40:04,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 23:40:04,932 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:40:04,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:40:04,933 INFO L82 PathProgramCache]: Analyzing trace with hash 797195438, now seen corresponding path program 1 times [2021-01-06 23:40:04,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:40:04,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160424651] [2021-01-06 23:40:04,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:40:04,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:40:05,009 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 23:40:05,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160424651] [2021-01-06 23:40:05,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:40:05,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:40:05,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243574650] [2021-01-06 23:40:05,013 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:40:05,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:40:05,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:40:05,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:40:05,015 INFO L87 Difference]: Start difference. First operand 284 states and 779 transitions. Second operand 4 states. [2021-01-06 23:40:05,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:40:05,033 INFO L93 Difference]: Finished difference Result 269 states and 727 transitions. [2021-01-06 23:40:05,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:40:05,033 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2021-01-06 23:40:05,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:40:05,038 INFO L225 Difference]: With dead ends: 269 [2021-01-06 23:40:05,038 INFO L226 Difference]: Without dead ends: 269 [2021-01-06 23:40:05,038 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:40:05,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2021-01-06 23:40:05,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2021-01-06 23:40:05,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2021-01-06 23:40:05,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 727 transitions. [2021-01-06 23:40:05,064 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 727 transitions. Word has length 9 [2021-01-06 23:40:05,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:40:05,064 INFO L481 AbstractCegarLoop]: Abstraction has 269 states and 727 transitions. [2021-01-06 23:40:05,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:40:05,065 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 727 transitions. [2021-01-06 23:40:05,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-01-06 23:40:05,066 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:40:05,067 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:40:05,067 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 23:40:05,067 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:40:05,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:40:05,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1951849563, now seen corresponding path program 1 times [2021-01-06 23:40:05,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:40:05,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159787188] [2021-01-06 23:40:05,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:40:05,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:40:05,151 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 23:40:05,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159787188] [2021-01-06 23:40:05,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:40:05,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:40:05,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446456590] [2021-01-06 23:40:05,152 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:40:05,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:40:05,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:40:05,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:40:05,154 INFO L87 Difference]: Start difference. First operand 269 states and 727 transitions. Second operand 4 states. [2021-01-06 23:40:05,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:40:05,176 INFO L93 Difference]: Finished difference Result 290 states and 749 transitions. [2021-01-06 23:40:05,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 23:40:05,176 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2021-01-06 23:40:05,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:40:05,178 INFO L225 Difference]: With dead ends: 290 [2021-01-06 23:40:05,178 INFO L226 Difference]: Without dead ends: 176 [2021-01-06 23:40:05,179 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 23:40:05,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-01-06 23:40:05,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 140. [2021-01-06 23:40:05,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2021-01-06 23:40:05,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 339 transitions. [2021-01-06 23:40:05,190 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 339 transitions. Word has length 10 [2021-01-06 23:40:05,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:40:05,190 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 339 transitions. [2021-01-06 23:40:05,190 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:40:05,190 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 339 transitions. [2021-01-06 23:40:05,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-01-06 23:40:05,192 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:40:05,192 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:40:05,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 23:40:05,192 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:40:05,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:40:05,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1183830127, now seen corresponding path program 1 times [2021-01-06 23:40:05,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:40:05,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197106601] [2021-01-06 23:40:05,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:40:05,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:40:05,254 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 23:40:05,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197106601] [2021-01-06 23:40:05,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:40:05,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:40:05,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349071298] [2021-01-06 23:40:05,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:40:05,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:40:05,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:40:05,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:40:05,257 INFO L87 Difference]: Start difference. First operand 140 states and 339 transitions. Second operand 5 states. [2021-01-06 23:40:05,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:40:05,277 INFO L93 Difference]: Finished difference Result 158 states and 372 transitions. [2021-01-06 23:40:05,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 23:40:05,278 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2021-01-06 23:40:05,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:40:05,278 INFO L225 Difference]: With dead ends: 158 [2021-01-06 23:40:05,279 INFO L226 Difference]: Without dead ends: 68 [2021-01-06 23:40:05,279 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-01-06 23:40:05,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-01-06 23:40:05,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-01-06 23:40:05,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2021-01-06 23:40:05,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2021-01-06 23:40:05,284 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 12 [2021-01-06 23:40:05,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:40:05,285 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2021-01-06 23:40:05,285 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:40:05,285 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2021-01-06 23:40:05,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 23:40:05,286 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:40:05,286 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:40:05,286 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 23:40:05,286 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:40:05,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:40:05,287 INFO L82 PathProgramCache]: Analyzing trace with hash -936336033, now seen corresponding path program 1 times [2021-01-06 23:40:05,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:40:05,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46507281] [2021-01-06 23:40:05,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:40:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:40:05,396 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 23:40:05,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46507281] [2021-01-06 23:40:05,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:40:05,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:40:05,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125951811] [2021-01-06 23:40:05,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:40:05,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:40:05,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:40:05,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:40:05,401 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 5 states. [2021-01-06 23:40:05,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:40:05,414 INFO L93 Difference]: Finished difference Result 56 states and 112 transitions. [2021-01-06 23:40:05,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 23:40:05,415 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-01-06 23:40:05,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:40:05,415 INFO L225 Difference]: With dead ends: 56 [2021-01-06 23:40:05,415 INFO L226 Difference]: Without dead ends: 0 [2021-01-06 23:40:05,416 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-01-06 23:40:05,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-01-06 23:40:05,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-01-06 23:40:05,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-01-06 23:40:05,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-01-06 23:40:05,418 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-01-06 23:40:05,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:40:05,418 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-01-06 23:40:05,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:40:05,420 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-01-06 23:40:05,421 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-06 23:40:05,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 23:40:05,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 11:40:05 BasicIcfg [2021-01-06 23:40:05,425 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 23:40:05,426 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 23:40:05,427 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 23:40:05,427 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 23:40:05,427 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:40:00" (3/4) ... [2021-01-06 23:40:05,432 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-01-06 23:40:05,441 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-01-06 23:40:05,441 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-01-06 23:40:05,441 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2021-01-06 23:40:05,449 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-01-06 23:40:05,449 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-01-06 23:40:05,450 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:40:05,450 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:40:05,517 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/thin001_tso.oepc.i-witness.graphml [2021-01-06 23:40:05,517 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 23:40:05,524 INFO L168 Benchmark]: Toolchain (without parser) took 6720.50 ms. Allocated memory was 169.9 MB in the beginning and 267.4 MB in the end (delta: 97.5 MB). Free memory was 144.1 MB in the beginning and 237.0 MB in the end (delta: -92.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 8.0 GB. [2021-01-06 23:40:05,525 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 169.9 MB. Free memory was 142.2 MB in the beginning and 142.1 MB in the end (delta: 89.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 23:40:05,526 INFO L168 Benchmark]: CACSL2BoogieTranslator took 791.06 ms. Allocated memory is still 169.9 MB. Free memory was 144.0 MB in the beginning and 147.0 MB in the end (delta: -3.0 MB). Peak memory consumption was 29.3 MB. Max. memory is 8.0 GB. [2021-01-06 23:40:05,528 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.75 ms. Allocated memory is still 169.9 MB. Free memory was 147.0 MB in the beginning and 145.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 23:40:05,529 INFO L168 Benchmark]: Boogie Preprocessor took 59.89 ms. Allocated memory is still 169.9 MB. Free memory was 145.4 MB in the beginning and 143.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:40:05,530 INFO L168 Benchmark]: RCFGBuilder took 593.98 ms. Allocated memory is still 169.9 MB. Free memory was 143.8 MB in the beginning and 120.8 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:40:05,532 INFO L168 Benchmark]: TraceAbstraction took 5108.56 ms. Allocated memory was 169.9 MB in the beginning and 267.4 MB in the end (delta: 97.5 MB). Free memory was 120.2 MB in the beginning and 240.1 MB in the end (delta: -119.9 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 23:40:05,533 INFO L168 Benchmark]: Witness Printer took 90.74 ms. Allocated memory is still 267.4 MB. Free memory was 239.6 MB in the beginning and 237.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:40:05,538 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 169.9 MB. Free memory was 142.2 MB in the beginning and 142.1 MB in the end (delta: 89.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 791.06 ms. Allocated memory is still 169.9 MB. Free memory was 144.0 MB in the beginning and 147.0 MB in the end (delta: -3.0 MB). Peak memory consumption was 29.3 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 66.75 ms. Allocated memory is still 169.9 MB. Free memory was 147.0 MB in the beginning and 145.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 59.89 ms. Allocated memory is still 169.9 MB. Free memory was 145.4 MB in the beginning and 143.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 593.98 ms. Allocated memory is still 169.9 MB. Free memory was 143.8 MB in the beginning and 120.8 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5108.56 ms. Allocated memory was 169.9 MB in the beginning and 267.4 MB in the end (delta: 97.5 MB). Free memory was 120.2 MB in the beginning and 240.1 MB in the end (delta: -119.9 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 90.74 ms. Allocated memory is still 267.4 MB. Free memory was 239.6 MB in the beginning and 237.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 856 VarBasedMoverChecksPositive, 38 VarBasedMoverChecksNegative, 9 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 64 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.5s, 84 PlacesBefore, 31 PlacesAfterwards, 76 TransitionsBefore, 21 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 64 TotalNumberOfCompositions, 2541 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 4 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: 107 SDtfs, 128 SDslu, 96 SDs, 0 SdLazy, 33 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 81 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 2929 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...