/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/safe007_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 23:31:58,718 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 23:31:58,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 23:31:58,757 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 23:31:58,758 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 23:31:58,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 23:31:58,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 23:31:58,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 23:31:58,767 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 23:31:58,768 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 23:31:58,769 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 23:31:58,771 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 23:31:58,772 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 23:31:58,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 23:31:58,774 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 23:31:58,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 23:31:58,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 23:31:58,778 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 23:31:58,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 23:31:58,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 23:31:58,785 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 23:31:58,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 23:31:58,788 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 23:31:58,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 23:31:58,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 23:31:58,803 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 23:31:58,803 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 23:31:58,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 23:31:58,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 23:31:58,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 23:31:58,807 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 23:31:58,808 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 23:31:58,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 23:31:58,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 23:31:58,811 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 23:31:58,811 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 23:31:58,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 23:31:58,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 23:31:58,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 23:31:58,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 23:31:58,815 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 23:31:58,816 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 23:31:58,844 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 23:31:58,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 23:31:58,853 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 23:31:58,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 23:31:58,856 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 23:31:58,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 23:31:58,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 23:31:58,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 23:31:58,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 23:31:58,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 23:31:58,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 23:31:58,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 23:31:58,858 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 23:31:58,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 23:31:58,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 23:31:58,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 23:31:58,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 23:31:58,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 23:31:58,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 23:31:58,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 23:31:58,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 23:31:58,860 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 23:31:58,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 23:31:58,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 23:31:58,861 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 23:31:58,861 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 23:31:59,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 23:31:59,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 23:31:59,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 23:31:59,289 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 23:31:59,290 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 23:31:59,291 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe007_pso.oepc.i [2021-01-06 23:31:59,388 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/b1d5c5cbd/29da6c5187184030bae59d71f94a6227/FLAG4d454ccb8 [2021-01-06 23:32:00,151 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 23:32:00,152 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe007_pso.oepc.i [2021-01-06 23:32:00,173 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/b1d5c5cbd/29da6c5187184030bae59d71f94a6227/FLAG4d454ccb8 [2021-01-06 23:32:00,441 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/b1d5c5cbd/29da6c5187184030bae59d71f94a6227 [2021-01-06 23:32:00,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 23:32:00,447 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 23:32:00,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 23:32:00,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 23:32:00,456 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 23:32:00,457 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:32:00" (1/1) ... [2021-01-06 23:32:00,460 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44bb8eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:32:00, skipping insertion in model container [2021-01-06 23:32:00,460 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:32:00" (1/1) ... [2021-01-06 23:32:00,469 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 23:32:00,539 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 23:32:00,722 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/safe007_pso.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$tmp_guard1~0,GLOBAL] [2021-01-06 23:32:01,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:32:01,030 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 23:32:01,054 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe007_pso.oepc.i[950,963] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p1_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~z~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2021-01-06 23:32:01,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:32:01,343 INFO L208 MainTranslator]: Completed translation [2021-01-06 23:32:01,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:32:01 WrapperNode [2021-01-06 23:32:01,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 23:32:01,347 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 23:32:01,347 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 23:32:01,347 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 23:32:01,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:32:01" (1/1) ... [2021-01-06 23:32:01,397 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:32:01" (1/1) ... [2021-01-06 23:32:01,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 23:32:01,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 23:32:01,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 23:32:01,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 23:32:01,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:32:01" (1/1) ... [2021-01-06 23:32:01,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:32:01" (1/1) ... [2021-01-06 23:32:01,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:32:01" (1/1) ... [2021-01-06 23:32:01,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:32:01" (1/1) ... [2021-01-06 23:32:01,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:32:01" (1/1) ... [2021-01-06 23:32:01,489 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:32:01" (1/1) ... [2021-01-06 23:32:01,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:32:01" (1/1) ... [2021-01-06 23:32:01,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 23:32:01,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 23:32:01,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 23:32:01,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 23:32:01,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:32:01" (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 23:32:01,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 23:32:01,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-06 23:32:01,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 23:32:01,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 23:32:01,618 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-06 23:32:01,618 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-06 23:32:01,619 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-06 23:32:01,619 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-06 23:32:01,619 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-06 23:32:01,619 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-06 23:32:01,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 23:32:01,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-06 23:32:01,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 23:32:01,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 23:32:01,622 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 23:32:02,102 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 23:32:02,103 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-01-06 23:32:02,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:32:02 BoogieIcfgContainer [2021-01-06 23:32:02,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 23:32:02,107 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 23:32:02,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 23:32:02,111 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 23:32:02,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 11:32:00" (1/3) ... [2021-01-06 23:32:02,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ea028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:32:02, skipping insertion in model container [2021-01-06 23:32:02,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:32:01" (2/3) ... [2021-01-06 23:32:02,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ea028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:32:02, skipping insertion in model container [2021-01-06 23:32:02,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:32:02" (3/3) ... [2021-01-06 23:32:02,115 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_pso.oepc.i [2021-01-06 23:32:02,123 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-06 23:32:02,123 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 23:32:02,129 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 23:32:02,130 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-06 23:32:02,167 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,168 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,168 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,168 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,168 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,169 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,169 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,169 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,169 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,170 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,170 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,170 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,171 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,171 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,171 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,171 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,171 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,172 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,172 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,172 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,172 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,173 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,173 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,173 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,173 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,174 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,174 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,174 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,174 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,174 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,175 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,175 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,175 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,176 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,176 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,176 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,178 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,179 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,179 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,179 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,184 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,185 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,185 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,185 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,187 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,187 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,187 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,188 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:32:02,189 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-06 23:32:02,209 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-06 23:32:02,232 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 23:32:02,233 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 23:32:02,233 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 23:32:02,233 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 23:32:02,233 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 23:32:02,233 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 23:32:02,233 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 23:32:02,234 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 23:32:02,247 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-01-06 23:32:02,249 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 76 transitions, 167 flow [2021-01-06 23:32:02,252 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 76 transitions, 167 flow [2021-01-06 23:32:02,254 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 76 transitions, 167 flow [2021-01-06 23:32:02,313 INFO L129 PetriNetUnfolder]: 2/73 cut-off events. [2021-01-06 23:32:02,313 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-01-06 23:32:02,323 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 23:32:02,331 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2021-01-06 23:32:05,562 WARN L197 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2021-01-06 23:32:05,672 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-01-06 23:32:05,913 WARN L197 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2021-01-06 23:32:06,020 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-01-06 23:32:06,273 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-01-06 23:32:06,340 INFO L131 LiptonReduction]: Checked pairs total: 2541 [2021-01-06 23:32:06,340 INFO L133 LiptonReduction]: Total number of compositions: 64 [2021-01-06 23:32:06,347 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2021-01-06 23:32:06,374 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2021-01-06 23:32:06,377 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2021-01-06 23:32:06,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-01-06 23:32:06,384 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:32:06,385 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:32:06,385 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:32:06,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:32:06,392 INFO L82 PathProgramCache]: Analyzing trace with hash 995547002, now seen corresponding path program 1 times [2021-01-06 23:32:06,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:32:06,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547266233] [2021-01-06 23:32:06,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:32:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:32:06,718 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 23:32:06,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547266233] [2021-01-06 23:32:06,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:32:06,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-01-06 23:32:06,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38718963] [2021-01-06 23:32:06,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 23:32:06,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:32:06,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 23:32:06,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:32:06,747 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2021-01-06 23:32:06,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:32:06,800 INFO L93 Difference]: Finished difference Result 360 states and 1001 transitions. [2021-01-06 23:32:06,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:32:06,802 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2021-01-06 23:32:06,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:32:06,818 INFO L225 Difference]: With dead ends: 360 [2021-01-06 23:32:06,819 INFO L226 Difference]: Without dead ends: 233 [2021-01-06 23:32:06,820 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 23:32:06,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-01-06 23:32:06,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2021-01-06 23:32:06,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2021-01-06 23:32:06,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 652 transitions. [2021-01-06 23:32:06,913 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 652 transitions. Word has length 8 [2021-01-06 23:32:06,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:32:06,914 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 652 transitions. [2021-01-06 23:32:06,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 23:32:06,915 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 652 transitions. [2021-01-06 23:32:06,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 23:32:06,916 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:32:06,916 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:32:06,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 23:32:06,919 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:32:06,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:32:06,920 INFO L82 PathProgramCache]: Analyzing trace with hash 755699245, now seen corresponding path program 1 times [2021-01-06 23:32:06,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:32:06,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50903562] [2021-01-06 23:32:06,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:32:06,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:32:07,083 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 23:32:07,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50903562] [2021-01-06 23:32:07,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:32:07,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:32:07,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056249154] [2021-01-06 23:32:07,092 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:32:07,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:32:07,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:32:07,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:32:07,097 INFO L87 Difference]: Start difference. First operand 233 states and 652 transitions. Second operand 4 states. [2021-01-06 23:32:07,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:32:07,138 INFO L93 Difference]: Finished difference Result 383 states and 1016 transitions. [2021-01-06 23:32:07,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:32:07,139 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2021-01-06 23:32:07,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:32:07,143 INFO L225 Difference]: With dead ends: 383 [2021-01-06 23:32:07,143 INFO L226 Difference]: Without dead ends: 329 [2021-01-06 23:32:07,145 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 23:32:07,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2021-01-06 23:32:07,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 284. [2021-01-06 23:32:07,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2021-01-06 23:32:07,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 779 transitions. [2021-01-06 23:32:07,179 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 779 transitions. Word has length 9 [2021-01-06 23:32:07,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:32:07,181 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 779 transitions. [2021-01-06 23:32:07,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:32:07,181 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 779 transitions. [2021-01-06 23:32:07,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 23:32:07,183 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:32:07,183 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:32:07,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 23:32:07,183 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:32:07,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:32:07,184 INFO L82 PathProgramCache]: Analyzing trace with hash 797195438, now seen corresponding path program 1 times [2021-01-06 23:32:07,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:32:07,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605977766] [2021-01-06 23:32:07,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:32:07,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:32:07,310 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 23:32:07,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605977766] [2021-01-06 23:32:07,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:32:07,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:32:07,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423366230] [2021-01-06 23:32:07,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:32:07,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:32:07,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:32:07,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:32:07,317 INFO L87 Difference]: Start difference. First operand 284 states and 779 transitions. Second operand 4 states. [2021-01-06 23:32:07,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:32:07,343 INFO L93 Difference]: Finished difference Result 269 states and 727 transitions. [2021-01-06 23:32:07,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:32:07,344 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2021-01-06 23:32:07,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:32:07,350 INFO L225 Difference]: With dead ends: 269 [2021-01-06 23:32:07,350 INFO L226 Difference]: Without dead ends: 269 [2021-01-06 23:32:07,351 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 23:32:07,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2021-01-06 23:32:07,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2021-01-06 23:32:07,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2021-01-06 23:32:07,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 727 transitions. [2021-01-06 23:32:07,403 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 727 transitions. Word has length 9 [2021-01-06 23:32:07,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:32:07,403 INFO L481 AbstractCegarLoop]: Abstraction has 269 states and 727 transitions. [2021-01-06 23:32:07,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:32:07,404 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 727 transitions. [2021-01-06 23:32:07,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-01-06 23:32:07,408 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:32:07,409 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:32:07,409 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 23:32:07,411 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:32:07,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:32:07,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1951849563, now seen corresponding path program 1 times [2021-01-06 23:32:07,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:32:07,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451240274] [2021-01-06 23:32:07,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:32:07,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:32:07,499 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 23:32:07,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451240274] [2021-01-06 23:32:07,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:32:07,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:32:07,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025921661] [2021-01-06 23:32:07,501 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:32:07,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:32:07,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:32:07,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:32:07,502 INFO L87 Difference]: Start difference. First operand 269 states and 727 transitions. Second operand 4 states. [2021-01-06 23:32:07,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:32:07,526 INFO L93 Difference]: Finished difference Result 290 states and 749 transitions. [2021-01-06 23:32:07,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 23:32:07,527 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2021-01-06 23:32:07,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:32:07,529 INFO L225 Difference]: With dead ends: 290 [2021-01-06 23:32:07,529 INFO L226 Difference]: Without dead ends: 176 [2021-01-06 23:32:07,529 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 23:32:07,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-01-06 23:32:07,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 140. [2021-01-06 23:32:07,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2021-01-06 23:32:07,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 339 transitions. [2021-01-06 23:32:07,538 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 339 transitions. Word has length 10 [2021-01-06 23:32:07,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:32:07,539 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 339 transitions. [2021-01-06 23:32:07,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:32:07,539 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 339 transitions. [2021-01-06 23:32:07,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-01-06 23:32:07,542 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:32:07,543 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:32:07,543 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 23:32:07,546 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:32:07,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:32:07,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1183830127, now seen corresponding path program 1 times [2021-01-06 23:32:07,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:32:07,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034297510] [2021-01-06 23:32:07,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:32:07,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:32:07,609 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 23:32:07,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034297510] [2021-01-06 23:32:07,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:32:07,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:32:07,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139110463] [2021-01-06 23:32:07,611 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:32:07,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:32:07,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:32:07,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:32:07,612 INFO L87 Difference]: Start difference. First operand 140 states and 339 transitions. Second operand 5 states. [2021-01-06 23:32:07,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:32:07,633 INFO L93 Difference]: Finished difference Result 158 states and 372 transitions. [2021-01-06 23:32:07,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 23:32:07,634 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2021-01-06 23:32:07,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:32:07,635 INFO L225 Difference]: With dead ends: 158 [2021-01-06 23:32:07,635 INFO L226 Difference]: Without dead ends: 68 [2021-01-06 23:32:07,635 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 23:32:07,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-01-06 23:32:07,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-01-06 23:32:07,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2021-01-06 23:32:07,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2021-01-06 23:32:07,638 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 12 [2021-01-06 23:32:07,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:32:07,639 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2021-01-06 23:32:07,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:32:07,639 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2021-01-06 23:32:07,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 23:32:07,639 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:32:07,640 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:32:07,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 23:32:07,640 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:32:07,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:32:07,640 INFO L82 PathProgramCache]: Analyzing trace with hash -936336033, now seen corresponding path program 1 times [2021-01-06 23:32:07,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:32:07,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355361391] [2021-01-06 23:32:07,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:32:07,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:32:07,717 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 23:32:07,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355361391] [2021-01-06 23:32:07,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:32:07,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:32:07,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034401355] [2021-01-06 23:32:07,718 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:32:07,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:32:07,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:32:07,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:32:07,719 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 5 states. [2021-01-06 23:32:07,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:32:07,733 INFO L93 Difference]: Finished difference Result 56 states and 112 transitions. [2021-01-06 23:32:07,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 23:32:07,733 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-01-06 23:32:07,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:32:07,734 INFO L225 Difference]: With dead ends: 56 [2021-01-06 23:32:07,734 INFO L226 Difference]: Without dead ends: 0 [2021-01-06 23:32:07,734 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 23:32:07,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-01-06 23:32:07,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-01-06 23:32:07,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-01-06 23:32:07,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-01-06 23:32:07,735 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-01-06 23:32:07,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:32:07,735 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-01-06 23:32:07,735 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:32:07,736 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-01-06 23:32:07,736 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-06 23:32:07,736 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 23:32:07,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 11:32:07 BasicIcfg [2021-01-06 23:32:07,740 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 23:32:07,740 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 23:32:07,740 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 23:32:07,741 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 23:32:07,741 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:32:02" (3/4) ... [2021-01-06 23:32:07,745 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-01-06 23:32:07,752 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-01-06 23:32:07,752 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-01-06 23:32:07,753 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2021-01-06 23:32:07,757 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-01-06 23:32:07,758 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-01-06 23:32:07,758 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:32:07,758 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:32:07,815 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe007_pso.oepc.i-witness.graphml [2021-01-06 23:32:07,815 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 23:32:07,819 INFO L168 Benchmark]: Toolchain (without parser) took 7369.18 ms. Allocated memory was 158.3 MB in the beginning and 239.1 MB in the end (delta: 80.7 MB). Free memory was 131.9 MB in the beginning and 150.0 MB in the end (delta: -18.1 MB). Peak memory consumption was 64.2 MB. Max. memory is 8.0 GB. [2021-01-06 23:32:07,820 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 158.3 MB. Free memory is still 131.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 23:32:07,820 INFO L168 Benchmark]: CACSL2BoogieTranslator took 894.49 ms. Allocated memory is still 158.3 MB. Free memory was 131.7 MB in the beginning and 136.5 MB in the end (delta: -4.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. [2021-01-06 23:32:07,823 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.81 ms. Allocated memory is still 158.3 MB. Free memory was 136.5 MB in the beginning and 135.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 23:32:07,824 INFO L168 Benchmark]: Boogie Preprocessor took 63.08 ms. Allocated memory is still 158.3 MB. Free memory was 135.0 MB in the beginning and 133.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:32:07,827 INFO L168 Benchmark]: RCFGBuilder took 603.40 ms. Allocated memory is still 158.3 MB. Free memory was 133.4 MB in the beginning and 111.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-01-06 23:32:07,828 INFO L168 Benchmark]: TraceAbstraction took 5632.77 ms. Allocated memory was 158.3 MB in the beginning and 239.1 MB in the end (delta: 80.7 MB). Free memory was 110.9 MB in the beginning and 152.6 MB in the end (delta: -41.8 MB). Peak memory consumption was 40.0 MB. Max. memory is 8.0 GB. [2021-01-06 23:32:07,829 INFO L168 Benchmark]: Witness Printer took 74.61 ms. Allocated memory is still 239.1 MB. Free memory was 152.6 MB in the beginning and 150.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:32:07,837 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 158.3 MB. Free memory is still 131.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 894.49 ms. Allocated memory is still 158.3 MB. Free memory was 131.7 MB in the beginning and 136.5 MB in the end (delta: -4.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 89.81 ms. Allocated memory is still 158.3 MB. Free memory was 136.5 MB in the beginning and 135.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 63.08 ms. Allocated memory is still 158.3 MB. Free memory was 135.0 MB in the beginning and 133.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 603.40 ms. Allocated memory is still 158.3 MB. Free memory was 133.4 MB in the beginning and 111.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5632.77 ms. Allocated memory was 158.3 MB in the beginning and 239.1 MB in the end (delta: 80.7 MB). Free memory was 110.9 MB in the beginning and 152.6 MB in the end (delta: -41.8 MB). Peak memory consumption was 40.0 MB. Max. memory is 8.0 GB. * Witness Printer took 74.61 ms. Allocated memory is still 239.1 MB. Free memory was 152.6 MB in the beginning and 150.0 MB in the end (delta: 2.6 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 856 VarBasedMoverChecksPositive, 38 VarBasedMoverChecksNegative, 9 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 64 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.0s, 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: 5.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.1s, 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...