/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/pthread-wmm/thin002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 13:47:23,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 13:47:23,465 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 13:47:23,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 13:47:23,507 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 13:47:23,512 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 13:47:23,516 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 13:47:23,524 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 13:47:23,529 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 13:47:23,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 13:47:23,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 13:47:23,543 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 13:47:23,544 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 13:47:23,548 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 13:47:23,550 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 13:47:23,553 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 13:47:23,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 13:47:23,556 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 13:47:23,566 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 13:47:23,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 13:47:23,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 13:47:23,577 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 13:47:23,579 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 13:47:23,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 13:47:23,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 13:47:23,608 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 13:47:23,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 13:47:23,613 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 13:47:23,613 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 13:47:23,615 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 13:47:23,615 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 13:47:23,617 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 13:47:23,619 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 13:47:23,621 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 13:47:23,622 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 13:47:23,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 13:47:23,624 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 13:47:23,631 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 13:47:23,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 13:47:23,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 13:47:23,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 13:47:23,638 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 13:47:23,695 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 13:47:23,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 13:47:23,700 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 13:47:23,700 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 13:47:23,701 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 13:47:23,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 13:47:23,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 13:47:23,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 13:47:23,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 13:47:23,702 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 13:47:23,703 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 13:47:23,704 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 13:47:23,704 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 13:47:23,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 13:47:23,705 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 13:47:23,705 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 13:47:23,705 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 13:47:23,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 13:47:23,706 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 13:47:23,706 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 13:47:23,706 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 13:47:23,707 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 13:47:23,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 13:47:23,707 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 13:47:23,707 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 13:47:23,708 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 13:47:24,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 13:47:24,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 13:47:24,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 13:47:24,141 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 13:47:24,142 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 13:47:24,143 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/thin002_tso.oepc.i [2020-12-23 13:47:24,249 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/2a0576739/5045cc21d5e94a07a69db8a7482b5dcf/FLAGbe5945194 [2020-12-23 13:47:25,027 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 13:47:25,038 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin002_tso.oepc.i [2020-12-23 13:47:25,068 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/2a0576739/5045cc21d5e94a07a69db8a7482b5dcf/FLAGbe5945194 [2020-12-23 13:47:25,280 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/2a0576739/5045cc21d5e94a07a69db8a7482b5dcf [2020-12-23 13:47:25,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 13:47:25,288 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 13:47:25,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 13:47:25,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 13:47:25,296 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 13:47:25,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:47:25" (1/1) ... [2020-12-23 13:47:25,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d7dbcdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:47:25, skipping insertion in model container [2020-12-23 13:47:25,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:47:25" (1/1) ... [2020-12-23 13:47:25,308 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 13:47:25,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 13:47:25,526 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin002_tso.oepc.i[950,963] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p1_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~z~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p3_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2020-12-23 13:47:25,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:47:25,797 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 13:47:25,811 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin002_tso.oepc.i[950,963] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p1_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~z~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p3_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~a~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2020-12-23 13:47:25,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:47:25,974 INFO L208 MainTranslator]: Completed translation [2020-12-23 13:47:25,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:47:25 WrapperNode [2020-12-23 13:47:25,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 13:47:25,978 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 13:47:25,978 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 13:47:25,978 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 13:47:25,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:47:25" (1/1) ... [2020-12-23 13:47:26,041 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:47:25" (1/1) ... [2020-12-23 13:47:26,081 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 13:47:26,082 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 13:47:26,083 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 13:47:26,083 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 13:47:26,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:47:25" (1/1) ... [2020-12-23 13:47:26,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:47:25" (1/1) ... [2020-12-23 13:47:26,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:47:25" (1/1) ... [2020-12-23 13:47:26,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:47:25" (1/1) ... [2020-12-23 13:47:26,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:47:25" (1/1) ... [2020-12-23 13:47:26,108 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:47:25" (1/1) ... [2020-12-23 13:47:26,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:47:25" (1/1) ... [2020-12-23 13:47:26,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 13:47:26,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 13:47:26,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 13:47:26,117 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 13:47:26,118 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:47:25" (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 13:47:26,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 13:47:26,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-23 13:47:26,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 13:47:26,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 13:47:26,247 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-23 13:47:26,247 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-23 13:47:26,247 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-23 13:47:26,247 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-23 13:47:26,248 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-23 13:47:26,248 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-23 13:47:26,248 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-12-23 13:47:26,248 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-12-23 13:47:26,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 13:47:26,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-23 13:47:26,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 13:47:26,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 13:47:26,251 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 13:47:26,784 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 13:47:26,784 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-23 13:47:26,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:47:26 BoogieIcfgContainer [2020-12-23 13:47:26,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 13:47:26,790 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 13:47:26,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 13:47:26,794 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 13:47:26,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:47:25" (1/3) ... [2020-12-23 13:47:26,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43742d60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:47:26, skipping insertion in model container [2020-12-23 13:47:26,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:47:25" (2/3) ... [2020-12-23 13:47:26,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43742d60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:47:26, skipping insertion in model container [2020-12-23 13:47:26,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:47:26" (3/3) ... [2020-12-23 13:47:26,798 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.oepc.i [2020-12-23 13:47:26,806 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-23 13:47:26,806 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 13:47:26,812 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 13:47:26,813 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-23 13:47:26,865 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,866 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,866 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,866 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,867 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,867 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,867 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,867 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,868 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,868 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,869 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,869 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,870 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,870 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,870 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,870 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,871 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,871 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,871 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,871 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,872 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,872 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,872 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,873 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,873 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,874 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,874 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,874 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,874 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,874 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,875 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,875 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,876 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,876 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,876 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,876 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,877 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,877 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,877 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,877 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,878 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,878 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,878 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,878 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,879 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,879 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,879 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,880 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,882 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,883 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,883 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,884 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,891 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,891 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,892 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,892 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,895 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,896 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,896 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,896 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,900 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,900 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,901 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,901 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:47:26,904 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-23 13:47:26,927 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-12-23 13:47:26,963 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 13:47:26,964 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 13:47:26,964 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 13:47:26,964 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 13:47:26,964 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 13:47:26,965 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 13:47:26,965 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 13:47:26,965 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 13:47:26,981 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-23 13:47:26,984 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 91 transitions, 202 flow [2020-12-23 13:47:26,988 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 91 transitions, 202 flow [2020-12-23 13:47:26,991 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 91 transitions, 202 flow [2020-12-23 13:47:27,142 INFO L129 PetriNetUnfolder]: 2/87 cut-off events. [2020-12-23 13:47:27,143 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-23 13:47:27,159 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 87 events. 2/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2020-12-23 13:47:27,170 INFO L116 LiptonReduction]: Number of co-enabled transitions 2064 [2020-12-23 13:47:31,414 WARN L197 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2020-12-23 13:47:31,525 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-12-23 13:47:31,782 WARN L197 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2020-12-23 13:47:31,904 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-12-23 13:47:31,911 INFO L131 LiptonReduction]: Checked pairs total: 4338 [2020-12-23 13:47:31,911 INFO L133 LiptonReduction]: Total number of compositions: 72 [2020-12-23 13:47:31,932 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 29 transitions, 78 flow [2020-12-23 13:47:32,048 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1450 states. [2020-12-23 13:47:32,051 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-12-23 13:47:32,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 13:47:32,062 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:47:32,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:47:32,064 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:47:32,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:47:32,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1256759632, now seen corresponding path program 1 times [2020-12-23 13:47:32,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:47:32,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038813578] [2020-12-23 13:47:32,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:47:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:47:32,320 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 13:47:32,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038813578] [2020-12-23 13:47:32,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:47:32,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:47:32,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748623664] [2020-12-23 13:47:32,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 13:47:32,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:47:32,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 13:47:32,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 13:47:32,349 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 2 states. [2020-12-23 13:47:32,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:47:32,420 INFO L93 Difference]: Finished difference Result 1450 states and 5376 transitions. [2020-12-23 13:47:32,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 13:47:32,422 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-23 13:47:32,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:47:32,470 INFO L225 Difference]: With dead ends: 1450 [2020-12-23 13:47:32,470 INFO L226 Difference]: Without dead ends: 1194 [2020-12-23 13:47:32,472 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 13:47:32,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2020-12-23 13:47:32,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2020-12-23 13:47:32,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-12-23 13:47:32,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 4352 transitions. [2020-12-23 13:47:32,656 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 4352 transitions. Word has length 10 [2020-12-23 13:47:32,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:47:32,658 INFO L481 AbstractCegarLoop]: Abstraction has 1194 states and 4352 transitions. [2020-12-23 13:47:32,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 13:47:32,658 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 4352 transitions. [2020-12-23 13:47:32,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-23 13:47:32,661 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:47:32,661 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:47:32,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 13:47:32,662 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:47:32,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:47:32,662 INFO L82 PathProgramCache]: Analyzing trace with hash -304847029, now seen corresponding path program 1 times [2020-12-23 13:47:32,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:47:32,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647595766] [2020-12-23 13:47:32,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:47:32,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:47:32,865 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 13:47:32,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647595766] [2020-12-23 13:47:32,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:47:32,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:47:32,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584422482] [2020-12-23 13:47:32,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:47:32,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:47:32,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:47:32,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:47:32,872 INFO L87 Difference]: Start difference. First operand 1194 states and 4352 transitions. Second operand 4 states. [2020-12-23 13:47:32,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:47:32,976 INFO L93 Difference]: Finished difference Result 1448 states and 5111 transitions. [2020-12-23 13:47:32,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 13:47:32,977 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-23 13:47:32,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:47:32,990 INFO L225 Difference]: With dead ends: 1448 [2020-12-23 13:47:32,990 INFO L226 Difference]: Without dead ends: 1192 [2020-12-23 13:47:32,992 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 13:47:33,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2020-12-23 13:47:33,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1192. [2020-12-23 13:47:33,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1192 states. [2020-12-23 13:47:33,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 4342 transitions. [2020-12-23 13:47:33,065 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 4342 transitions. Word has length 11 [2020-12-23 13:47:33,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:47:33,066 INFO L481 AbstractCegarLoop]: Abstraction has 1192 states and 4342 transitions. [2020-12-23 13:47:33,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:47:33,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 4342 transitions. [2020-12-23 13:47:33,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-23 13:47:33,074 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:47:33,075 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:47:33,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 13:47:33,078 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:47:33,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:47:33,084 INFO L82 PathProgramCache]: Analyzing trace with hash -835567243, now seen corresponding path program 1 times [2020-12-23 13:47:33,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:47:33,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920245880] [2020-12-23 13:47:33,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:47:33,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:47:33,186 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 13:47:33,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920245880] [2020-12-23 13:47:33,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:47:33,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:47:33,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281401564] [2020-12-23 13:47:33,187 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:47:33,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:47:33,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:47:33,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:47:33,189 INFO L87 Difference]: Start difference. First operand 1192 states and 4342 transitions. Second operand 5 states. [2020-12-23 13:47:33,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:47:33,248 INFO L93 Difference]: Finished difference Result 1318 states and 4624 transitions. [2020-12-23 13:47:33,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 13:47:33,249 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-23 13:47:33,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:47:33,260 INFO L225 Difference]: With dead ends: 1318 [2020-12-23 13:47:33,260 INFO L226 Difference]: Without dead ends: 1066 [2020-12-23 13:47:33,260 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 13:47:33,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-12-23 13:47:33,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-12-23 13:47:33,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-12-23 13:47:33,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3808 transitions. [2020-12-23 13:47:33,315 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3808 transitions. Word has length 12 [2020-12-23 13:47:33,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:47:33,316 INFO L481 AbstractCegarLoop]: Abstraction has 1066 states and 3808 transitions. [2020-12-23 13:47:33,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:47:33,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3808 transitions. [2020-12-23 13:47:33,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-23 13:47:33,318 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:47:33,318 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:47:33,318 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 13:47:33,318 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:47:33,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:47:33,319 INFO L82 PathProgramCache]: Analyzing trace with hash -862200397, now seen corresponding path program 1 times [2020-12-23 13:47:33,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:47:33,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183187862] [2020-12-23 13:47:33,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:47:33,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:47:33,449 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 13:47:33,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183187862] [2020-12-23 13:47:33,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:47:33,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:47:33,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2323279] [2020-12-23 13:47:33,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:47:33,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:47:33,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:47:33,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:47:33,455 INFO L87 Difference]: Start difference. First operand 1066 states and 3808 transitions. Second operand 5 states. [2020-12-23 13:47:33,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:47:33,578 INFO L93 Difference]: Finished difference Result 1927 states and 6692 transitions. [2020-12-23 13:47:33,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 13:47:33,579 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-23 13:47:33,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:47:33,596 INFO L225 Difference]: With dead ends: 1927 [2020-12-23 13:47:33,597 INFO L226 Difference]: Without dead ends: 1384 [2020-12-23 13:47:33,597 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-23 13:47:33,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2020-12-23 13:47:33,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1384. [2020-12-23 13:47:33,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1384 states. [2020-12-23 13:47:33,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 4860 transitions. [2020-12-23 13:47:33,681 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 4860 transitions. Word has length 12 [2020-12-23 13:47:33,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:47:33,682 INFO L481 AbstractCegarLoop]: Abstraction has 1384 states and 4860 transitions. [2020-12-23 13:47:33,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:47:33,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 4860 transitions. [2020-12-23 13:47:33,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-23 13:47:33,685 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:47:33,685 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:47:33,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 13:47:33,685 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:47:33,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:47:33,686 INFO L82 PathProgramCache]: Analyzing trace with hash -959570637, now seen corresponding path program 1 times [2020-12-23 13:47:33,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:47:33,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440490123] [2020-12-23 13:47:33,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:47:33,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:47:33,840 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 13:47:33,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440490123] [2020-12-23 13:47:33,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:47:33,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 13:47:33,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321260188] [2020-12-23 13:47:33,842 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 13:47:33,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:47:33,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 13:47:33,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-23 13:47:33,845 INFO L87 Difference]: Start difference. First operand 1384 states and 4860 transitions. Second operand 6 states. [2020-12-23 13:47:33,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:47:33,931 INFO L93 Difference]: Finished difference Result 1579 states and 5434 transitions. [2020-12-23 13:47:33,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:47:33,932 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-12-23 13:47:33,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:47:33,937 INFO L225 Difference]: With dead ends: 1579 [2020-12-23 13:47:33,938 INFO L226 Difference]: Without dead ends: 556 [2020-12-23 13:47:33,938 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-23 13:47:33,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2020-12-23 13:47:33,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2020-12-23 13:47:33,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-12-23 13:47:33,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 1826 transitions. [2020-12-23 13:47:33,963 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 1826 transitions. Word has length 13 [2020-12-23 13:47:33,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:47:33,964 INFO L481 AbstractCegarLoop]: Abstraction has 556 states and 1826 transitions. [2020-12-23 13:47:33,964 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 13:47:33,964 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 1826 transitions. [2020-12-23 13:47:33,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-23 13:47:33,965 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:47:33,965 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:47:33,965 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 13:47:33,966 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:47:33,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:47:33,966 INFO L82 PathProgramCache]: Analyzing trace with hash 638958007, now seen corresponding path program 1 times [2020-12-23 13:47:33,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:47:33,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813906643] [2020-12-23 13:47:33,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:47:33,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:47:34,042 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 13:47:34,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813906643] [2020-12-23 13:47:34,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:47:34,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 13:47:34,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354230142] [2020-12-23 13:47:34,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 13:47:34,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:47:34,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 13:47:34,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-23 13:47:34,045 INFO L87 Difference]: Start difference. First operand 556 states and 1826 transitions. Second operand 6 states. [2020-12-23 13:47:34,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:47:34,106 INFO L93 Difference]: Finished difference Result 700 states and 2230 transitions. [2020-12-23 13:47:34,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:47:34,106 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-23 13:47:34,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:47:34,110 INFO L225 Difference]: With dead ends: 700 [2020-12-23 13:47:34,110 INFO L226 Difference]: Without dead ends: 316 [2020-12-23 13:47:34,111 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-23 13:47:34,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2020-12-23 13:47:34,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2020-12-23 13:47:34,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2020-12-23 13:47:34,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 934 transitions. [2020-12-23 13:47:34,123 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 934 transitions. Word has length 14 [2020-12-23 13:47:34,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:47:34,124 INFO L481 AbstractCegarLoop]: Abstraction has 316 states and 934 transitions. [2020-12-23 13:47:34,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 13:47:34,124 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 934 transitions. [2020-12-23 13:47:34,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-23 13:47:34,125 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:47:34,126 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:47:34,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 13:47:34,126 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:47:34,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:47:34,128 INFO L82 PathProgramCache]: Analyzing trace with hash 2113265253, now seen corresponding path program 1 times [2020-12-23 13:47:34,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:47:34,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810628201] [2020-12-23 13:47:34,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:47:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:47:34,231 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 13:47:34,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810628201] [2020-12-23 13:47:34,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:47:34,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:47:34,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835058465] [2020-12-23 13:47:34,232 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:47:34,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:47:34,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:47:34,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:47:34,233 INFO L87 Difference]: Start difference. First operand 316 states and 934 transitions. Second operand 5 states. [2020-12-23 13:47:34,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:47:34,268 INFO L93 Difference]: Finished difference Result 340 states and 974 transitions. [2020-12-23 13:47:34,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 13:47:34,269 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-12-23 13:47:34,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:47:34,272 INFO L225 Difference]: With dead ends: 340 [2020-12-23 13:47:34,272 INFO L226 Difference]: Without dead ends: 292 [2020-12-23 13:47:34,273 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 13:47:34,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-12-23 13:47:34,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2020-12-23 13:47:34,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-12-23 13:47:34,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 846 transitions. [2020-12-23 13:47:34,284 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 846 transitions. Word has length 16 [2020-12-23 13:47:34,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:47:34,284 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 846 transitions. [2020-12-23 13:47:34,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:47:34,285 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 846 transitions. [2020-12-23 13:47:34,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-23 13:47:34,288 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:47:34,288 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:47:34,288 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 13:47:34,290 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:47:34,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:47:34,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1420368766, now seen corresponding path program 1 times [2020-12-23 13:47:34,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:47:34,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903191994] [2020-12-23 13:47:34,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:47:34,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:47:34,452 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 13:47:34,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903191994] [2020-12-23 13:47:34,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:47:34,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 13:47:34,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625288224] [2020-12-23 13:47:34,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 13:47:34,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:47:34,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 13:47:34,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-23 13:47:34,455 INFO L87 Difference]: Start difference. First operand 292 states and 846 transitions. Second operand 6 states. [2020-12-23 13:47:34,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:47:34,513 INFO L93 Difference]: Finished difference Result 352 states and 1006 transitions. [2020-12-23 13:47:34,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:47:34,513 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-12-23 13:47:34,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:47:34,515 INFO L225 Difference]: With dead ends: 352 [2020-12-23 13:47:34,515 INFO L226 Difference]: Without dead ends: 154 [2020-12-23 13:47:34,515 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-23 13:47:34,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-12-23 13:47:34,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-12-23 13:47:34,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-12-23 13:47:34,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 410 transitions. [2020-12-23 13:47:34,522 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 410 transitions. Word has length 17 [2020-12-23 13:47:34,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:47:34,522 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 410 transitions. [2020-12-23 13:47:34,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 13:47:34,522 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 410 transitions. [2020-12-23 13:47:34,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-23 13:47:34,523 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:47:34,523 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:47:34,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 13:47:34,524 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:47:34,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:47:34,524 INFO L82 PathProgramCache]: Analyzing trace with hash -673573280, now seen corresponding path program 1 times [2020-12-23 13:47:34,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:47:34,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784391474] [2020-12-23 13:47:34,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:47:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:47:34,587 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 13:47:34,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784391474] [2020-12-23 13:47:34,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:47:34,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 13:47:34,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640404817] [2020-12-23 13:47:34,589 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 13:47:34,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:47:34,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 13:47:34,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-23 13:47:34,590 INFO L87 Difference]: Start difference. First operand 154 states and 410 transitions. Second operand 6 states. [2020-12-23 13:47:34,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:47:34,630 INFO L93 Difference]: Finished difference Result 130 states and 334 transitions. [2020-12-23 13:47:34,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:47:34,630 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-12-23 13:47:34,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:47:34,631 INFO L225 Difference]: With dead ends: 130 [2020-12-23 13:47:34,631 INFO L226 Difference]: Without dead ends: 0 [2020-12-23 13:47:34,631 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-23 13:47:34,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-23 13:47:34,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-23 13:47:34,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-23 13:47:34,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-23 13:47:34,632 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-12-23 13:47:34,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:47:34,632 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-23 13:47:34,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 13:47:34,632 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-23 13:47:34,632 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-23 13:47:34,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 13:47:34,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 01:47:34 BasicIcfg [2020-12-23 13:47:34,637 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 13:47:34,637 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 13:47:34,637 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 13:47:34,637 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 13:47:34,638 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:47:26" (3/4) ... [2020-12-23 13:47:34,642 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-23 13:47:34,649 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-23 13:47:34,650 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-23 13:47:34,650 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-23 13:47:34,650 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2020-12-23 13:47:34,656 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2020-12-23 13:47:34,656 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-23 13:47:34,656 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 13:47:34,656 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 13:47:34,706 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/thin002_tso.oepc.i-witness.graphml [2020-12-23 13:47:34,707 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 13:47:34,708 INFO L168 Benchmark]: Toolchain (without parser) took 9420.24 ms. Allocated memory was 151.0 MB in the beginning and 234.9 MB in the end (delta: 83.9 MB). Free memory was 124.6 MB in the beginning and 173.3 MB in the end (delta: -48.7 MB). Peak memory consumption was 36.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:47:34,709 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 151.0 MB. Free memory is still 123.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 13:47:34,709 INFO L168 Benchmark]: CACSL2BoogieTranslator took 684.93 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 92.8 MB in the end (delta: 31.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. [2020-12-23 13:47:34,710 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.14 ms. Allocated memory is still 151.0 MB. Free memory was 92.8 MB in the beginning and 90.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:47:34,711 INFO L168 Benchmark]: Boogie Preprocessor took 32.56 ms. Allocated memory is still 151.0 MB. Free memory was 90.7 MB in the beginning and 89.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:47:34,711 INFO L168 Benchmark]: RCFGBuilder took 671.51 ms. Allocated memory is still 151.0 MB. Free memory was 89.4 MB in the beginning and 64.5 MB in the end (delta: 24.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2020-12-23 13:47:34,712 INFO L168 Benchmark]: TraceAbstraction took 7847.17 ms. Allocated memory was 151.0 MB in the beginning and 234.9 MB in the end (delta: 83.9 MB). Free memory was 64.2 MB in the beginning and 175.9 MB in the end (delta: -111.7 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 13:47:34,712 INFO L168 Benchmark]: Witness Printer took 69.62 ms. Allocated memory is still 234.9 MB. Free memory was 175.9 MB in the beginning and 173.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:47:34,716 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 151.0 MB. Free memory is still 123.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 684.93 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 92.8 MB in the end (delta: 31.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 104.14 ms. Allocated memory is still 151.0 MB. Free memory was 92.8 MB in the beginning and 90.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 32.56 ms. Allocated memory is still 151.0 MB. Free memory was 90.7 MB in the beginning and 89.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 671.51 ms. Allocated memory is still 151.0 MB. Free memory was 89.4 MB in the beginning and 64.5 MB in the end (delta: 24.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7847.17 ms. Allocated memory was 151.0 MB in the beginning and 234.9 MB in the end (delta: 83.9 MB). Free memory was 64.2 MB in the beginning and 175.9 MB in the end (delta: -111.7 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 69.62 ms. Allocated memory is still 234.9 MB. Free memory was 175.9 MB in the beginning and 173.3 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 1519 VarBasedMoverChecksPositive, 57 VarBasedMoverChecksNegative, 13 SemBasedMoverChecksPositive, 44 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 204 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.9s, 102 PlacesBefore, 41 PlacesAfterwards, 91 TransitionsBefore, 29 TransitionsAfterwards, 2064 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 72 TotalNumberOfCompositions, 4338 MoverChecksTotal - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.6s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.0s, HoareTripleCheckerStatistics: 273 SDtfs, 376 SDslu, 456 SDs, 0 SdLazy, 106 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 8206 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...