/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/safe015_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 13:41:13,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 13:41:13,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 13:41:13,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 13:41:13,065 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 13:41:13,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 13:41:13,074 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 13:41:13,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 13:41:13,084 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 13:41:13,093 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 13:41:13,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 13:41:13,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 13:41:13,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 13:41:13,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 13:41:13,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 13:41:13,121 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 13:41:13,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 13:41:13,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 13:41:13,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 13:41:13,129 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 13:41:13,131 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 13:41:13,132 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 13:41:13,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 13:41:13,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 13:41:13,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 13:41:13,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 13:41:13,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 13:41:13,140 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 13:41:13,141 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 13:41:13,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 13:41:13,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 13:41:13,144 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 13:41:13,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 13:41:13,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 13:41:13,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 13:41:13,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 13:41:13,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 13:41:13,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 13:41:13,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 13:41:13,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 13:41:13,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 13:41:13,153 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 13:41:13,192 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 13:41:13,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 13:41:13,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 13:41:13,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 13:41:13,195 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 13:41:13,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 13:41:13,196 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 13:41:13,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 13:41:13,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 13:41:13,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 13:41:13,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 13:41:13,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 13:41:13,197 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 13:41:13,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 13:41:13,198 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 13:41:13,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 13:41:13,198 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 13:41:13,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 13:41:13,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 13:41:13,199 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 13:41:13,199 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 13:41:13,200 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 13:41:13,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 13:41:13,200 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 13:41:13,200 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 13:41:13,200 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 13:41:13,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 13:41:13,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 13:41:13,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 13:41:13,624 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 13:41:13,625 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 13:41:13,626 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe015_tso.oepc.i [2020-12-23 13:41:13,725 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/aa7d788a7/df11ce9808ae4e099bddd21e70c07f0b/FLAG9dc92f3f9 [2020-12-23 13:41:14,508 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 13:41:14,509 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe015_tso.oepc.i [2020-12-23 13:41:14,530 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/aa7d788a7/df11ce9808ae4e099bddd21e70c07f0b/FLAG9dc92f3f9 [2020-12-23 13:41:14,766 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/aa7d788a7/df11ce9808ae4e099bddd21e70c07f0b [2020-12-23 13:41:14,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 13:41:14,772 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 13:41:14,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 13:41:14,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 13:41:14,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 13:41:14,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:41:14" (1/1) ... [2020-12-23 13:41:14,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ba30e73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:14, skipping insertion in model container [2020-12-23 13:41:14,784 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:41:14" (1/1) ... [2020-12-23 13:41:14,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 13:41:14,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 13:41:15,052 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/safe015_tso.oepc.i[950,963] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~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_p2_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[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2020-12-23 13:41:15,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:41:15,387 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 13:41:15,408 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe015_tso.oepc.i[950,963] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2020-12-23 13:41:15,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:41:15,597 INFO L208 MainTranslator]: Completed translation [2020-12-23 13:41:15,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:15 WrapperNode [2020-12-23 13:41:15,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 13:41:15,600 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 13:41:15,601 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 13:41:15,601 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 13:41:15,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:15" (1/1) ... [2020-12-23 13:41:15,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:15" (1/1) ... [2020-12-23 13:41:15,703 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 13:41:15,707 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 13:41:15,707 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 13:41:15,707 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 13:41:15,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:15" (1/1) ... [2020-12-23 13:41:15,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:15" (1/1) ... [2020-12-23 13:41:15,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:15" (1/1) ... [2020-12-23 13:41:15,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:15" (1/1) ... [2020-12-23 13:41:15,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:15" (1/1) ... [2020-12-23 13:41:15,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:15" (1/1) ... [2020-12-23 13:41:15,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:15" (1/1) ... [2020-12-23 13:41:15,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 13:41:15,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 13:41:15,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 13:41:15,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 13:41:15,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:15" (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 [2020-12-23 13:41:15,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 13:41:15,857 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-23 13:41:15,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 13:41:15,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 13:41:15,857 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-23 13:41:15,857 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-23 13:41:15,858 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-23 13:41:15,858 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-23 13:41:15,858 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-23 13:41:15,858 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-23 13:41:15,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 13:41:15,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-23 13:41:15,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 13:41:15,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 13:41:15,861 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-23 13:41:16,436 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 13:41:16,437 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-23 13:41:16,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:41:16 BoogieIcfgContainer [2020-12-23 13:41:16,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 13:41:16,445 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 13:41:16,445 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 13:41:16,452 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 13:41:16,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:41:14" (1/3) ... [2020-12-23 13:41:16,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eaa4d04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:41:16, skipping insertion in model container [2020-12-23 13:41:16,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:15" (2/3) ... [2020-12-23 13:41:16,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eaa4d04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:41:16, skipping insertion in model container [2020-12-23 13:41:16,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:41:16" (3/3) ... [2020-12-23 13:41:16,457 INFO L111 eAbstractionObserver]: Analyzing ICFG safe015_tso.oepc.i [2020-12-23 13:41:16,467 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-23 13:41:16,468 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 13:41:16,475 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 13:41:16,478 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-23 13:41:16,545 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,545 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,546 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,546 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,546 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,546 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,547 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,547 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,547 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,548 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,548 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,548 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,550 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,550 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,550 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,550 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,550 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,551 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,551 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,551 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,552 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,552 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,552 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,552 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,555 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,555 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,556 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,556 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,558 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,559 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,559 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,559 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,560 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,560 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,560 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,561 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,564 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,566 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,566 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,566 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,580 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,582 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,582 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,583 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,591 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,592 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,592 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,592 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:41:16,596 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-23 13:41:16,623 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-23 13:41:16,669 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 13:41:16,669 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 13:41:16,669 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 13:41:16,669 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 13:41:16,670 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 13:41:16,670 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 13:41:16,670 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 13:41:16,671 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 13:41:16,693 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-23 13:41:16,695 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 74 transitions, 163 flow [2020-12-23 13:41:16,700 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 74 transitions, 163 flow [2020-12-23 13:41:16,704 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2020-12-23 13:41:16,809 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2020-12-23 13:41:16,809 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-23 13:41:16,830 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2020-12-23 13:41:16,836 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2020-12-23 13:41:19,747 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-12-23 13:41:19,930 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-12-23 13:41:20,602 WARN L197 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-12-23 13:41:20,711 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-12-23 13:41:20,948 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-12-23 13:41:21,295 INFO L131 LiptonReduction]: Checked pairs total: 2553 [2020-12-23 13:41:21,295 INFO L133 LiptonReduction]: Total number of compositions: 64 [2020-12-23 13:41:21,305 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-12-23 13:41:21,337 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-12-23 13:41:21,341 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-12-23 13:41:21,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 13:41:21,351 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:41:21,353 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:41:21,353 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:41:21,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:41:21,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1555009458, now seen corresponding path program 1 times [2020-12-23 13:41:21,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:41:21,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360119239] [2020-12-23 13:41:21,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:41:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:41:21,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:41:21,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360119239] [2020-12-23 13:41:21,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:41:21,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-23 13:41:21,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990339463] [2020-12-23 13:41:21,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 13:41:21,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:41:21,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 13:41:21,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:41:21,856 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-12-23 13:41:21,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:41:21,981 INFO L93 Difference]: Finished difference Result 457 states and 1253 transitions. [2020-12-23 13:41:21,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 13:41:21,987 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-23 13:41:21,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:41:22,009 INFO L225 Difference]: With dead ends: 457 [2020-12-23 13:41:22,009 INFO L226 Difference]: Without dead ends: 315 [2020-12-23 13:41:22,011 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:41:22,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-12-23 13:41:22,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 280. [2020-12-23 13:41:22,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-12-23 13:41:22,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 739 transitions. [2020-12-23 13:41:22,104 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 739 transitions. Word has length 8 [2020-12-23 13:41:22,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:41:22,107 INFO L481 AbstractCegarLoop]: Abstraction has 280 states and 739 transitions. [2020-12-23 13:41:22,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 13:41:22,108 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 739 transitions. [2020-12-23 13:41:22,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 13:41:22,113 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:41:22,113 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:41:22,115 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 13:41:22,116 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:41:22,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:41:22,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1099271783, now seen corresponding path program 1 times [2020-12-23 13:41:22,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:41:22,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949732208] [2020-12-23 13:41:22,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:41:22,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:41:22,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:41:22,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949732208] [2020-12-23 13:41:22,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:41:22,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:41:22,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308394011] [2020-12-23 13:41:22,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:41:22,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:41:22,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:41:22,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:41:22,299 INFO L87 Difference]: Start difference. First operand 280 states and 739 transitions. Second operand 4 states. [2020-12-23 13:41:22,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:41:22,338 INFO L93 Difference]: Finished difference Result 293 states and 749 transitions. [2020-12-23 13:41:22,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 13:41:22,339 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-23 13:41:22,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:41:22,345 INFO L225 Difference]: With dead ends: 293 [2020-12-23 13:41:22,346 INFO L226 Difference]: Without dead ends: 293 [2020-12-23 13:41:22,347 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 [2020-12-23 13:41:22,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-12-23 13:41:22,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 257. [2020-12-23 13:41:22,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-12-23 13:41:22,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 671 transitions. [2020-12-23 13:41:22,410 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 671 transitions. Word has length 9 [2020-12-23 13:41:22,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:41:22,414 INFO L481 AbstractCegarLoop]: Abstraction has 257 states and 671 transitions. [2020-12-23 13:41:22,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:41:22,414 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 671 transitions. [2020-12-23 13:41:22,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 13:41:22,418 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:41:22,418 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:41:22,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 13:41:22,419 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:41:22,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:41:22,424 INFO L82 PathProgramCache]: Analyzing trace with hash -285096968, now seen corresponding path program 1 times [2020-12-23 13:41:22,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:41:22,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783697046] [2020-12-23 13:41:22,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:41:22,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:41:22,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:41:22,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783697046] [2020-12-23 13:41:22,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:41:22,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:41:22,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341747536] [2020-12-23 13:41:22,559 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:41:22,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:41:22,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:41:22,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:41:22,563 INFO L87 Difference]: Start difference. First operand 257 states and 671 transitions. Second operand 4 states. [2020-12-23 13:41:22,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:41:22,603 INFO L93 Difference]: Finished difference Result 282 states and 718 transitions. [2020-12-23 13:41:22,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 13:41:22,604 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-23 13:41:22,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:41:22,607 INFO L225 Difference]: With dead ends: 282 [2020-12-23 13:41:22,607 INFO L226 Difference]: Without dead ends: 282 [2020-12-23 13:41:22,608 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 [2020-12-23 13:41:22,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-12-23 13:41:22,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 248. [2020-12-23 13:41:22,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2020-12-23 13:41:22,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 641 transitions. [2020-12-23 13:41:22,640 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 641 transitions. Word has length 10 [2020-12-23 13:41:22,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:41:22,640 INFO L481 AbstractCegarLoop]: Abstraction has 248 states and 641 transitions. [2020-12-23 13:41:22,641 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:41:22,641 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 641 transitions. [2020-12-23 13:41:22,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 13:41:22,649 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:41:22,649 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:41:22,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 13:41:22,650 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:41:22,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:41:22,653 INFO L82 PathProgramCache]: Analyzing trace with hash -285109461, now seen corresponding path program 1 times [2020-12-23 13:41:22,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:41:22,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577086718] [2020-12-23 13:41:22,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:41:22,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:41:22,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:41:22,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577086718] [2020-12-23 13:41:22,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:41:22,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:41:22,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486780196] [2020-12-23 13:41:22,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:41:22,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:41:22,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:41:22,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:41:22,784 INFO L87 Difference]: Start difference. First operand 248 states and 641 transitions. Second operand 4 states. [2020-12-23 13:41:22,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:41:22,814 INFO L93 Difference]: Finished difference Result 264 states and 666 transitions. [2020-12-23 13:41:22,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 13:41:22,815 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-23 13:41:22,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:41:22,817 INFO L225 Difference]: With dead ends: 264 [2020-12-23 13:41:22,818 INFO L226 Difference]: Without dead ends: 264 [2020-12-23 13:41:22,818 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:41:22,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-12-23 13:41:22,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 222. [2020-12-23 13:41:22,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-12-23 13:41:22,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 562 transitions. [2020-12-23 13:41:22,828 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 562 transitions. Word has length 10 [2020-12-23 13:41:22,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:41:22,829 INFO L481 AbstractCegarLoop]: Abstraction has 222 states and 562 transitions. [2020-12-23 13:41:22,829 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:41:22,829 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 562 transitions. [2020-12-23 13:41:22,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-23 13:41:22,830 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:41:22,830 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:41:22,831 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 13:41:22,831 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:41:22,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:41:22,832 INFO L82 PathProgramCache]: Analyzing trace with hash -162369203, now seen corresponding path program 1 times [2020-12-23 13:41:22,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:41:22,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975433550] [2020-12-23 13:41:22,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:41:22,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:41:22,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:41:22,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975433550] [2020-12-23 13:41:22,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:41:22,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:41:22,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662944402] [2020-12-23 13:41:22,893 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:41:22,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:41:22,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:41:22,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:41:22,895 INFO L87 Difference]: Start difference. First operand 222 states and 562 transitions. Second operand 4 states. [2020-12-23 13:41:22,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:41:22,922 INFO L93 Difference]: Finished difference Result 252 states and 633 transitions. [2020-12-23 13:41:22,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 13:41:22,923 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-23 13:41:22,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:41:22,925 INFO L225 Difference]: With dead ends: 252 [2020-12-23 13:41:22,925 INFO L226 Difference]: Without dead ends: 252 [2020-12-23 13:41:22,927 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 [2020-12-23 13:41:22,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-12-23 13:41:22,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 200. [2020-12-23 13:41:22,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-12-23 13:41:22,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 507 transitions. [2020-12-23 13:41:22,937 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 507 transitions. Word has length 11 [2020-12-23 13:41:22,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:41:22,937 INFO L481 AbstractCegarLoop]: Abstraction has 200 states and 507 transitions. [2020-12-23 13:41:22,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:41:22,938 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 507 transitions. [2020-12-23 13:41:22,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-23 13:41:22,939 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:41:22,939 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:41:22,939 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 13:41:22,940 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:41:22,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:41:22,940 INFO L82 PathProgramCache]: Analyzing trace with hash -732205193, now seen corresponding path program 1 times [2020-12-23 13:41:22,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:41:22,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695998822] [2020-12-23 13:41:22,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:41:22,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:41:23,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:41:23,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695998822] [2020-12-23 13:41:23,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:41:23,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:41:23,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919310250] [2020-12-23 13:41:23,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:41:23,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:41:23,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:41:23,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:41:23,071 INFO L87 Difference]: Start difference. First operand 200 states and 507 transitions. Second operand 5 states. [2020-12-23 13:41:23,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:41:23,114 INFO L93 Difference]: Finished difference Result 304 states and 741 transitions. [2020-12-23 13:41:23,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 13:41:23,115 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-23 13:41:23,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:41:23,117 INFO L225 Difference]: With dead ends: 304 [2020-12-23 13:41:23,117 INFO L226 Difference]: Without dead ends: 200 [2020-12-23 13:41:23,118 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-12-23 13:41:23,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-12-23 13:41:23,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 176. [2020-12-23 13:41:23,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-12-23 13:41:23,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 429 transitions. [2020-12-23 13:41:23,128 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 429 transitions. Word has length 12 [2020-12-23 13:41:23,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:41:23,131 INFO L481 AbstractCegarLoop]: Abstraction has 176 states and 429 transitions. [2020-12-23 13:41:23,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:41:23,131 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 429 transitions. [2020-12-23 13:41:23,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-23 13:41:23,132 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:41:23,132 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:41:23,132 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 13:41:23,133 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:41:23,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:41:23,133 INFO L82 PathProgramCache]: Analyzing trace with hash -737567573, now seen corresponding path program 2 times [2020-12-23 13:41:23,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:41:23,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985132772] [2020-12-23 13:41:23,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:41:23,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:41:23,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:41:23,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985132772] [2020-12-23 13:41:23,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:41:23,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 13:41:23,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165176455] [2020-12-23 13:41:23,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:41:23,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:41:23,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:41:23,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:41:23,263 INFO L87 Difference]: Start difference. First operand 176 states and 429 transitions. Second operand 5 states. [2020-12-23 13:41:23,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:41:23,319 INFO L93 Difference]: Finished difference Result 228 states and 521 transitions. [2020-12-23 13:41:23,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:41:23,320 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-23 13:41:23,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:41:23,322 INFO L225 Difference]: With dead ends: 228 [2020-12-23 13:41:23,322 INFO L226 Difference]: Without dead ends: 148 [2020-12-23 13:41:23,324 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-12-23 13:41:23,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-12-23 13:41:23,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 124. [2020-12-23 13:41:23,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-12-23 13:41:23,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 279 transitions. [2020-12-23 13:41:23,331 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 279 transitions. Word has length 12 [2020-12-23 13:41:23,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:41:23,332 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 279 transitions. [2020-12-23 13:41:23,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:41:23,332 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 279 transitions. [2020-12-23 13:41:23,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-23 13:41:23,352 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:41:23,352 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:41:23,353 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 13:41:23,353 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:41:23,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:41:23,354 INFO L82 PathProgramCache]: Analyzing trace with hash -738490133, now seen corresponding path program 3 times [2020-12-23 13:41:23,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:41:23,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6577846] [2020-12-23 13:41:23,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:41:23,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:41:23,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:41:23,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6577846] [2020-12-23 13:41:23,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:41:23,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:41:23,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678428811] [2020-12-23 13:41:23,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:41:23,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:41:23,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:41:23,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:41:23,460 INFO L87 Difference]: Start difference. First operand 124 states and 279 transitions. Second operand 4 states. [2020-12-23 13:41:23,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:41:23,492 INFO L93 Difference]: Finished difference Result 138 states and 286 transitions. [2020-12-23 13:41:23,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 13:41:23,493 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-12-23 13:41:23,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:41:23,494 INFO L225 Difference]: With dead ends: 138 [2020-12-23 13:41:23,495 INFO L226 Difference]: Without dead ends: 106 [2020-12-23 13:41:23,495 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:41:23,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-12-23 13:41:23,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2020-12-23 13:41:23,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-12-23 13:41:23,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 218 transitions. [2020-12-23 13:41:23,501 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 218 transitions. Word has length 12 [2020-12-23 13:41:23,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:41:23,501 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 218 transitions. [2020-12-23 13:41:23,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:41:23,502 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 218 transitions. [2020-12-23 13:41:23,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-23 13:41:23,502 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:41:23,503 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:41:23,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 13:41:23,503 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:41:23,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:41:23,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1418345754, now seen corresponding path program 1 times [2020-12-23 13:41:23,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:41:23,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73580819] [2020-12-23 13:41:23,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:41:23,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:41:23,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:41:23,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73580819] [2020-12-23 13:41:23,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:41:23,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:41:23,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997264270] [2020-12-23 13:41:23,602 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:41:23,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:41:23,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:41:23,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:41:23,604 INFO L87 Difference]: Start difference. First operand 106 states and 218 transitions. Second operand 5 states. [2020-12-23 13:41:23,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:41:23,664 INFO L93 Difference]: Finished difference Result 101 states and 198 transitions. [2020-12-23 13:41:23,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:41:23,665 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-23 13:41:23,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:41:23,666 INFO L225 Difference]: With dead ends: 101 [2020-12-23 13:41:23,666 INFO L226 Difference]: Without dead ends: 81 [2020-12-23 13:41:23,667 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-23 13:41:23,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-12-23 13:41:23,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-12-23 13:41:23,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-12-23 13:41:23,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 157 transitions. [2020-12-23 13:41:23,672 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 157 transitions. Word has length 13 [2020-12-23 13:41:23,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:41:23,672 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 157 transitions. [2020-12-23 13:41:23,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:41:23,672 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 157 transitions. [2020-12-23 13:41:23,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-23 13:41:23,677 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:41:23,677 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:41:23,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 13:41:23,678 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:41:23,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:41:23,679 INFO L82 PathProgramCache]: Analyzing trace with hash -226822936, now seen corresponding path program 1 times [2020-12-23 13:41:23,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:41:23,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36647816] [2020-12-23 13:41:23,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:41:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:41:23,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:41:23,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36647816] [2020-12-23 13:41:23,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:41:23,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 13:41:23,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984585048] [2020-12-23 13:41:23,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 13:41:23,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:41:23,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 13:41:23,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-23 13:41:23,783 INFO L87 Difference]: Start difference. First operand 81 states and 157 transitions. Second operand 6 states. [2020-12-23 13:41:23,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:41:23,823 INFO L93 Difference]: Finished difference Result 76 states and 151 transitions. [2020-12-23 13:41:23,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:41:23,823 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-12-23 13:41:23,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:41:23,824 INFO L225 Difference]: With dead ends: 76 [2020-12-23 13:41:23,824 INFO L226 Difference]: Without dead ends: 0 [2020-12-23 13:41:23,825 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-23 13:41:23,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-23 13:41:23,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-23 13:41:23,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-23 13:41:23,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-23 13:41:23,826 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-12-23 13:41:23,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:41:23,826 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-23 13:41:23,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 13:41:23,826 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-23 13:41:23,826 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-23 13:41:23,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 13:41:23,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 01:41:23 BasicIcfg [2020-12-23 13:41:23,832 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 13:41:23,833 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 13:41:23,833 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 13:41:23,833 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 13:41:23,834 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:41:16" (3/4) ... [2020-12-23 13:41:23,840 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-23 13:41:23,850 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-23 13:41:23,851 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-23 13:41:23,851 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-23 13:41:23,858 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-23 13:41:23,858 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-23 13:41:23,858 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 13:41:23,858 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 13:41:23,920 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe015_tso.oepc.i-witness.graphml [2020-12-23 13:41:23,920 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 13:41:23,923 INFO L168 Benchmark]: Toolchain (without parser) took 9149.95 ms. Allocated memory was 161.5 MB in the beginning and 234.9 MB in the end (delta: 73.4 MB). Free memory was 136.2 MB in the beginning and 169.0 MB in the end (delta: -32.8 MB). Peak memory consumption was 41.3 MB. Max. memory is 8.0 GB. [2020-12-23 13:41:23,923 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 161.5 MB. Free memory is still 133.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 13:41:23,924 INFO L168 Benchmark]: CACSL2BoogieTranslator took 823.78 ms. Allocated memory is still 161.5 MB. Free memory was 136.0 MB in the beginning and 137.3 MB in the end (delta: -1.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 8.0 GB. [2020-12-23 13:41:23,924 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.25 ms. Allocated memory is still 161.5 MB. Free memory was 137.3 MB in the beginning and 135.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:41:23,925 INFO L168 Benchmark]: Boogie Preprocessor took 34.65 ms. Allocated memory is still 161.5 MB. Free memory was 135.2 MB in the beginning and 134.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:41:23,926 INFO L168 Benchmark]: RCFGBuilder took 700.94 ms. Allocated memory is still 161.5 MB. Free memory was 134.2 MB in the beginning and 112.2 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:41:23,927 INFO L168 Benchmark]: TraceAbstraction took 7387.01 ms. Allocated memory was 161.5 MB in the beginning and 234.9 MB in the end (delta: 73.4 MB). Free memory was 111.6 MB in the beginning and 172.2 MB in the end (delta: -60.5 MB). Peak memory consumption was 14.4 MB. Max. memory is 8.0 GB. [2020-12-23 13:41:23,927 INFO L168 Benchmark]: Witness Printer took 87.53 ms. Allocated memory is still 234.9 MB. Free memory was 172.2 MB in the beginning and 169.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:41:23,931 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 161.5 MB. Free memory is still 133.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 823.78 ms. Allocated memory is still 161.5 MB. Free memory was 136.0 MB in the beginning and 137.3 MB in the end (delta: -1.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 105.25 ms. Allocated memory is still 161.5 MB. Free memory was 137.3 MB in the beginning and 135.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.65 ms. Allocated memory is still 161.5 MB. Free memory was 135.2 MB in the beginning and 134.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 700.94 ms. Allocated memory is still 161.5 MB. Free memory was 134.2 MB in the beginning and 112.2 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7387.01 ms. Allocated memory was 161.5 MB in the beginning and 234.9 MB in the end (delta: 73.4 MB). Free memory was 111.6 MB in the beginning and 172.2 MB in the end (delta: -60.5 MB). Peak memory consumption was 14.4 MB. Max. memory is 8.0 GB. * Witness Printer took 87.53 ms. Allocated memory is still 234.9 MB. Free memory was 172.2 MB in the beginning and 169.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 796 VarBasedMoverChecksPositive, 42 VarBasedMoverChecksNegative, 9 SemBasedMoverChecksPositive, 33 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 57 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.5s, 82 PlacesBefore, 31 PlacesAfterwards, 74 TransitionsBefore, 22 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 64 TotalNumberOfCompositions, 2553 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, 73 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.1s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: 187 SDtfs, 205 SDslu, 256 SDs, 0 SdLazy, 143 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 247 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 5766 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...