/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/safe011_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:07:55,423 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:07:55,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:07:55,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:07:55,473 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:07:55,474 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:07:55,476 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:07:55,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:07:55,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:07:55,482 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:07:55,484 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:07:55,485 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:07:55,486 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:07:55,487 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:07:55,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:07:55,490 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:07:55,491 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:07:55,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:07:55,501 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:07:55,504 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:07:55,506 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:07:55,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:07:55,510 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:07:55,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:07:55,514 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:07:55,515 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:07:55,515 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:07:55,516 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:07:55,517 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:07:55,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:07:55,519 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:07:55,519 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:07:55,520 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:07:55,521 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:07:55,523 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:07:55,523 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:07:55,524 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:07:55,524 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:07:55,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:07:55,526 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:07:55,527 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:07:55,528 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:07:55,555 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:07:55,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:07:55,557 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:07:55,558 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:07:55,558 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:07:55,558 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:07:55,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:07:55,559 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:07:55,559 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:07:55,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:07:55,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:07:55,560 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:07:55,560 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:07:55,560 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:07:55,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:07:55,561 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:07:55,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:07:55,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:07:55,562 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:07:55,562 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:07:55,562 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:07:55,563 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:07:55,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:07:55,563 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:07:55,563 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:07:55,564 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:07:55,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:07:55,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:07:55,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:07:55,972 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:07:55,973 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:07:55,974 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe011_tso.oepc.i [2020-12-22 11:07:56,057 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/772ce81f8/42b71e70d8764b59bd06e094ecd7fe15/FLAGad32edf0e [2020-12-22 11:07:56,854 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:07:56,854 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe011_tso.oepc.i [2020-12-22 11:07:56,870 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/772ce81f8/42b71e70d8764b59bd06e094ecd7fe15/FLAGad32edf0e [2020-12-22 11:07:57,112 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/772ce81f8/42b71e70d8764b59bd06e094ecd7fe15 [2020-12-22 11:07:57,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:07:57,118 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:07:57,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:07:57,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:07:57,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:07:57,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:07:57" (1/1) ... [2020-12-22 11:07:57,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31f8f51c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:57, skipping insertion in model container [2020-12-22 11:07:57,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:07:57" (1/1) ... [2020-12-22 11:07:57,140 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:07:57,215 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:07:57,389 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe011_tso.oepc.i[950,963] [2020-12-22 11:07:57,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:07:57,691 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:07:57,710 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe011_tso.oepc.i[950,963] [2020-12-22 11:07:57,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:07:57,891 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:07:57,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:57 WrapperNode [2020-12-22 11:07:57,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:07:57,893 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:07:57,893 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:07:57,893 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:07:57,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:57" (1/1) ... [2020-12-22 11:07:57,919 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:57" (1/1) ... [2020-12-22 11:07:57,963 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:07:57,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:07:57,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:07:57,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:07:57,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:57" (1/1) ... [2020-12-22 11:07:57,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:57" (1/1) ... [2020-12-22 11:07:57,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:57" (1/1) ... [2020-12-22 11:07:57,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:57" (1/1) ... [2020-12-22 11:07:58,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:57" (1/1) ... [2020-12-22 11:07:58,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:57" (1/1) ... [2020-12-22 11:07:58,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:57" (1/1) ... [2020-12-22 11:07:58,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:07:58,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:07:58,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:07:58,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:07:58,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-12-22 11:07:58,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:07:58,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-22 11:07:58,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:07:58,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:07:58,112 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-22 11:07:58,113 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-22 11:07:58,113 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-22 11:07:58,113 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-22 11:07:58,113 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-22 11:07:58,113 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-22 11:07:58,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:07:58,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-22 11:07:58,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:07:58,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:07:58,116 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-22 11:07:58,686 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:07:58,686 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-22 11:07:58,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:07:58 BoogieIcfgContainer [2020-12-22 11:07:58,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:07:58,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:07:58,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:07:58,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:07:58,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:07:57" (1/3) ... [2020-12-22 11:07:58,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@796bd34c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:07:58, skipping insertion in model container [2020-12-22 11:07:58,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:57" (2/3) ... [2020-12-22 11:07:58,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@796bd34c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:07:58, skipping insertion in model container [2020-12-22 11:07:58,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:07:58" (3/3) ... [2020-12-22 11:07:58,698 INFO L111 eAbstractionObserver]: Analyzing ICFG safe011_tso.oepc.i [2020-12-22 11:07:58,705 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-22 11:07:58,705 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:07:58,710 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 11:07:58,711 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-22 11:07:58,747 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,748 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,748 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,748 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,749 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,749 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,749 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,749 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,750 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,750 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,750 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,750 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,751 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,751 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,751 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,751 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,752 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,752 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,752 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,752 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,753 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,753 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,753 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,753 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,754 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,754 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,754 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,754 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,755 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,755 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,755 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,755 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,756 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,756 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,756 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,756 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,759 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,760 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,760 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,760 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,766 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,767 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,767 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,767 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,770 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,770 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,771 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,771 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:58,773 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-22 11:07:58,794 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-22 11:07:58,824 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:07:58,824 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:07:58,824 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:07:58,825 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:07:58,825 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:07:58,825 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:07:58,825 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:07:58,825 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:07:58,843 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:07:58,846 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 74 transitions, 163 flow [2020-12-22 11:07:58,851 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 74 transitions, 163 flow [2020-12-22 11:07:58,854 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2020-12-22 11:07:58,907 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2020-12-22 11:07:58,908 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-22 11:07:58,913 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 57 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. [2020-12-22 11:07:58,916 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2020-12-22 11:08:01,433 WARN L197 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-12-22 11:08:01,726 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-12-22 11:08:01,833 INFO L131 LiptonReduction]: Checked pairs total: 2448 [2020-12-22 11:08:01,833 INFO L133 LiptonReduction]: Total number of compositions: 61 [2020-12-22 11:08:01,841 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-12-22 11:08:01,875 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-12-22 11:08:01,877 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-12-22 11:08:01,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 11:08:01,885 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:08:01,886 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:08:01,886 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:08:01,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:08:01,893 INFO L82 PathProgramCache]: Analyzing trace with hash 70130421, now seen corresponding path program 1 times [2020-12-22 11:08:01,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:08:01,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057345277] [2020-12-22 11:08:01,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:08:02,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:08:02,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:08:02,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057345277] [2020-12-22 11:08:02,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:08:02,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:08:02,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392745797] [2020-12-22 11:08:02,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 11:08:02,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:08:02,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 11:08:02,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:08:02,138 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-12-22 11:08:02,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:08:02,192 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-12-22 11:08:02,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 11:08:02,197 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-22 11:08:02,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:08:02,226 INFO L225 Difference]: With dead ends: 362 [2020-12-22 11:08:02,226 INFO L226 Difference]: Without dead ends: 298 [2020-12-22 11:08:02,228 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 [2020-12-22 11:08:02,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-12-22 11:08:02,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-12-22 11:08:02,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-12-22 11:08:02,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-12-22 11:08:02,343 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-12-22 11:08:02,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:08:02,344 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-12-22 11:08:02,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 11:08:02,344 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-12-22 11:08:02,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 11:08:02,350 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:08:02,350 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:08:02,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:08:02,350 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:08:02,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:08:02,351 INFO L82 PathProgramCache]: Analyzing trace with hash -2120938041, now seen corresponding path program 1 times [2020-12-22 11:08:02,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:08:02,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905643279] [2020-12-22 11:08:02,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:08:02,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:08:02,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:08:02,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905643279] [2020-12-22 11:08:02,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:08:02,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:08:02,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192017959] [2020-12-22 11:08:02,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:08:02,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:08:02,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:08:02,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:08:02,524 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-12-22 11:08:02,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:08:02,571 INFO L93 Difference]: Finished difference Result 572 states and 1557 transitions. [2020-12-22 11:08:02,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:08:02,572 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-22 11:08:02,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:08:02,576 INFO L225 Difference]: With dead ends: 572 [2020-12-22 11:08:02,576 INFO L226 Difference]: Without dead ends: 420 [2020-12-22 11:08:02,577 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 [2020-12-22 11:08:02,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2020-12-22 11:08:02,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 340. [2020-12-22 11:08:02,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2020-12-22 11:08:02,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 926 transitions. [2020-12-22 11:08:02,595 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 926 transitions. Word has length 9 [2020-12-22 11:08:02,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:08:02,595 INFO L481 AbstractCegarLoop]: Abstraction has 340 states and 926 transitions. [2020-12-22 11:08:02,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:08:02,596 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 926 transitions. [2020-12-22 11:08:02,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:08:02,597 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:08:02,597 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:08:02,597 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:08:02,598 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:08:02,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:08:02,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1222306100, now seen corresponding path program 1 times [2020-12-22 11:08:02,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:08:02,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84094828] [2020-12-22 11:08:02,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:08:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:08:02,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:08:02,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84094828] [2020-12-22 11:08:02,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:08:02,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:08:02,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441707107] [2020-12-22 11:08:02,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:08:02,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:08:02,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:08:02,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:08:02,733 INFO L87 Difference]: Start difference. First operand 340 states and 926 transitions. Second operand 5 states. [2020-12-22 11:08:02,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:08:02,788 INFO L93 Difference]: Finished difference Result 464 states and 1193 transitions. [2020-12-22 11:08:02,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:08:02,789 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-22 11:08:02,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:08:02,792 INFO L225 Difference]: With dead ends: 464 [2020-12-22 11:08:02,792 INFO L226 Difference]: Without dead ends: 378 [2020-12-22 11:08:02,793 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:08:02,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2020-12-22 11:08:02,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 286. [2020-12-22 11:08:02,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-12-22 11:08:02,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 766 transitions. [2020-12-22 11:08:02,811 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 766 transitions. Word has length 10 [2020-12-22 11:08:02,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:08:02,811 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 766 transitions. [2020-12-22 11:08:02,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:08:02,812 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 766 transitions. [2020-12-22 11:08:02,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:08:02,813 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:08:02,814 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:08:02,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:08:02,814 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:08:02,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:08:02,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1325562886, now seen corresponding path program 1 times [2020-12-22 11:08:02,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:08:02,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351066355] [2020-12-22 11:08:02,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:08:02,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:08:02,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:08:02,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351066355] [2020-12-22 11:08:02,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:08:02,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:08:02,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899646097] [2020-12-22 11:08:02,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:08:02,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:08:02,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:08:02,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:08:02,980 INFO L87 Difference]: Start difference. First operand 286 states and 766 transitions. Second operand 5 states. [2020-12-22 11:08:03,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:08:03,028 INFO L93 Difference]: Finished difference Result 436 states and 1097 transitions. [2020-12-22 11:08:03,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:08:03,029 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-22 11:08:03,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:08:03,032 INFO L225 Difference]: With dead ends: 436 [2020-12-22 11:08:03,033 INFO L226 Difference]: Without dead ends: 358 [2020-12-22 11:08:03,033 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:08:03,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-12-22 11:08:03,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 270. [2020-12-22 11:08:03,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-12-22 11:08:03,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 712 transitions. [2020-12-22 11:08:03,047 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 712 transitions. Word has length 10 [2020-12-22 11:08:03,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:08:03,047 INFO L481 AbstractCegarLoop]: Abstraction has 270 states and 712 transitions. [2020-12-22 11:08:03,047 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:08:03,047 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 712 transitions. [2020-12-22 11:08:03,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 11:08:03,049 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:08:03,049 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:08:03,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 11:08:03,050 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:08:03,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:08:03,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1857187595, now seen corresponding path program 1 times [2020-12-22 11:08:03,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:08:03,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134834529] [2020-12-22 11:08:03,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:08:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:08:03,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:08:03,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134834529] [2020-12-22 11:08:03,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:08:03,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:08:03,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596315473] [2020-12-22 11:08:03,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:08:03,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:08:03,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:08:03,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:08:03,124 INFO L87 Difference]: Start difference. First operand 270 states and 712 transitions. Second operand 5 states. [2020-12-22 11:08:03,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:08:03,169 INFO L93 Difference]: Finished difference Result 382 states and 967 transitions. [2020-12-22 11:08:03,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:08:03,170 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-12-22 11:08:03,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:08:03,173 INFO L225 Difference]: With dead ends: 382 [2020-12-22 11:08:03,173 INFO L226 Difference]: Without dead ends: 340 [2020-12-22 11:08:03,174 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:08:03,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-12-22 11:08:03,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 264. [2020-12-22 11:08:03,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-12-22 11:08:03,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 690 transitions. [2020-12-22 11:08:03,187 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 690 transitions. Word has length 11 [2020-12-22 11:08:03,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:08:03,187 INFO L481 AbstractCegarLoop]: Abstraction has 264 states and 690 transitions. [2020-12-22 11:08:03,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:08:03,188 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 690 transitions. [2020-12-22 11:08:03,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 11:08:03,189 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:08:03,189 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:08:03,189 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 11:08:03,190 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:08:03,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:08:03,190 INFO L82 PathProgramCache]: Analyzing trace with hash 575547449, now seen corresponding path program 1 times [2020-12-22 11:08:03,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:08:03,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310328952] [2020-12-22 11:08:03,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:08:03,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:08:03,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:08:03,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310328952] [2020-12-22 11:08:03,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:08:03,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:08:03,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201515170] [2020-12-22 11:08:03,252 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:08:03,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:08:03,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:08:03,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:08:03,253 INFO L87 Difference]: Start difference. First operand 264 states and 690 transitions. Second operand 5 states. [2020-12-22 11:08:03,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:08:03,291 INFO L93 Difference]: Finished difference Result 418 states and 1021 transitions. [2020-12-22 11:08:03,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:08:03,292 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-22 11:08:03,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:08:03,294 INFO L225 Difference]: With dead ends: 418 [2020-12-22 11:08:03,295 INFO L226 Difference]: Without dead ends: 328 [2020-12-22 11:08:03,295 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:08:03,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2020-12-22 11:08:03,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 248. [2020-12-22 11:08:03,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2020-12-22 11:08:03,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 632 transitions. [2020-12-22 11:08:03,306 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 632 transitions. Word has length 12 [2020-12-22 11:08:03,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:08:03,307 INFO L481 AbstractCegarLoop]: Abstraction has 248 states and 632 transitions. [2020-12-22 11:08:03,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:08:03,307 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 632 transitions. [2020-12-22 11:08:03,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 11:08:03,308 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:08:03,308 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:08:03,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 11:08:03,309 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:08:03,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:08:03,309 INFO L82 PathProgramCache]: Analyzing trace with hash -2140910896, now seen corresponding path program 1 times [2020-12-22 11:08:03,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:08:03,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197457090] [2020-12-22 11:08:03,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:08:03,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:08:03,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:08:03,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197457090] [2020-12-22 11:08:03,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:08:03,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:08:03,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095898860] [2020-12-22 11:08:03,366 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:08:03,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:08:03,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:08:03,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:08:03,368 INFO L87 Difference]: Start difference. First operand 248 states and 632 transitions. Second operand 6 states. [2020-12-22 11:08:03,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:08:03,419 INFO L93 Difference]: Finished difference Result 299 states and 726 transitions. [2020-12-22 11:08:03,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:08:03,420 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-12-22 11:08:03,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:08:03,421 INFO L225 Difference]: With dead ends: 299 [2020-12-22 11:08:03,422 INFO L226 Difference]: Without dead ends: 158 [2020-12-22 11:08:03,422 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 [2020-12-22 11:08:03,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-12-22 11:08:03,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 142. [2020-12-22 11:08:03,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-12-22 11:08:03,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 318 transitions. [2020-12-22 11:08:03,428 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 318 transitions. Word has length 12 [2020-12-22 11:08:03,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:08:03,428 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 318 transitions. [2020-12-22 11:08:03,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:08:03,428 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 318 transitions. [2020-12-22 11:08:03,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 11:08:03,429 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:08:03,429 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:08:03,429 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 11:08:03,430 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:08:03,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:08:03,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1024807024, now seen corresponding path program 1 times [2020-12-22 11:08:03,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:08:03,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847772279] [2020-12-22 11:08:03,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:08:03,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:08:03,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:08:03,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847772279] [2020-12-22 11:08:03,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:08:03,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:08:03,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233992679] [2020-12-22 11:08:03,490 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:08:03,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:08:03,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:08:03,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:08:03,491 INFO L87 Difference]: Start difference. First operand 142 states and 318 transitions. Second operand 4 states. [2020-12-22 11:08:03,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:08:03,516 INFO L93 Difference]: Finished difference Result 152 states and 308 transitions. [2020-12-22 11:08:03,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:08:03,516 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-12-22 11:08:03,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:08:03,517 INFO L225 Difference]: With dead ends: 152 [2020-12-22 11:08:03,517 INFO L226 Difference]: Without dead ends: 120 [2020-12-22 11:08:03,518 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:08:03,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-12-22 11:08:03,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-12-22 11:08:03,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-12-22 11:08:03,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 243 transitions. [2020-12-22 11:08:03,522 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 243 transitions. Word has length 13 [2020-12-22 11:08:03,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:08:03,523 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 243 transitions. [2020-12-22 11:08:03,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:08:03,523 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 243 transitions. [2020-12-22 11:08:03,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 11:08:03,524 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:08:03,524 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:08:03,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 11:08:03,524 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:08:03,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:08:03,525 INFO L82 PathProgramCache]: Analyzing trace with hash -704924573, now seen corresponding path program 1 times [2020-12-22 11:08:03,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:08:03,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000649464] [2020-12-22 11:08:03,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:08:03,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:08:03,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:08:03,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000649464] [2020-12-22 11:08:03,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:08:03,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:08:03,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031010498] [2020-12-22 11:08:03,597 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:08:03,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:08:03,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:08:03,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:08:03,598 INFO L87 Difference]: Start difference. First operand 120 states and 243 transitions. Second operand 5 states. [2020-12-22 11:08:03,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:08:03,637 INFO L93 Difference]: Finished difference Result 106 states and 197 transitions. [2020-12-22 11:08:03,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:08:03,637 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-12-22 11:08:03,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:08:03,638 INFO L225 Difference]: With dead ends: 106 [2020-12-22 11:08:03,638 INFO L226 Difference]: Without dead ends: 77 [2020-12-22 11:08:03,639 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:08:03,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-12-22 11:08:03,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-12-22 11:08:03,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-12-22 11:08:03,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 133 transitions. [2020-12-22 11:08:03,642 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 133 transitions. Word has length 14 [2020-12-22 11:08:03,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:08:03,642 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 133 transitions. [2020-12-22 11:08:03,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:08:03,643 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 133 transitions. [2020-12-22 11:08:03,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 11:08:03,643 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:08:03,644 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:08:03,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 11:08:03,644 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:08:03,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:08:03,644 INFO L82 PathProgramCache]: Analyzing trace with hash -237179704, now seen corresponding path program 1 times [2020-12-22 11:08:03,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:08:03,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813407285] [2020-12-22 11:08:03,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:08:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:08:03,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:08:03,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813407285] [2020-12-22 11:08:03,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:08:03,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:08:03,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567667695] [2020-12-22 11:08:03,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:08:03,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:08:03,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:08:03,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:08:03,731 INFO L87 Difference]: Start difference. First operand 77 states and 133 transitions. Second operand 6 states. [2020-12-22 11:08:03,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:08:03,762 INFO L93 Difference]: Finished difference Result 67 states and 118 transitions. [2020-12-22 11:08:03,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:08:03,762 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-12-22 11:08:03,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:08:03,763 INFO L225 Difference]: With dead ends: 67 [2020-12-22 11:08:03,763 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 11:08:03,763 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:08:03,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 11:08:03,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 11:08:03,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 11:08:03,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 11:08:03,764 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-12-22 11:08:03,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:08:03,765 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 11:08:03,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:08:03,765 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 11:08:03,765 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 11:08:03,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 11:08:03,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:08:03 BasicIcfg [2020-12-22 11:08:03,769 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 11:08:03,770 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 11:08:03,770 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 11:08:03,770 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 11:08:03,771 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:07:58" (3/4) ... [2020-12-22 11:08:03,775 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 11:08:03,783 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-22 11:08:03,783 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-22 11:08:03,783 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-22 11:08:03,788 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-22 11:08:03,788 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 11:08:03,789 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:08:03,789 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:08:03,837 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe011_tso.oepc.i-witness.graphml [2020-12-22 11:08:03,837 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 11:08:03,839 INFO L168 Benchmark]: Toolchain (without parser) took 6720.44 ms. Allocated memory was 154.1 MB in the beginning and 229.6 MB in the end (delta: 75.5 MB). Free memory was 128.8 MB in the beginning and 89.3 MB in the end (delta: 39.5 MB). Peak memory consumption was 115.2 MB. Max. memory is 8.0 GB. [2020-12-22 11:08:03,839 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 154.1 MB. Free memory is still 125.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:08:03,840 INFO L168 Benchmark]: CACSL2BoogieTranslator took 770.31 ms. Allocated memory is still 154.1 MB. Free memory was 128.6 MB in the beginning and 133.5 MB in the end (delta: -4.9 MB). Peak memory consumption was 32.7 MB. Max. memory is 8.0 GB. [2020-12-22 11:08:03,841 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.32 ms. Allocated memory is still 154.1 MB. Free memory was 133.5 MB in the beginning and 131.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:08:03,841 INFO L168 Benchmark]: Boogie Preprocessor took 50.07 ms. Allocated memory is still 154.1 MB. Free memory was 131.4 MB in the beginning and 130.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:08:03,842 INFO L168 Benchmark]: RCFGBuilder took 670.10 ms. Allocated memory is still 154.1 MB. Free memory was 130.3 MB in the beginning and 108.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:08:03,843 INFO L168 Benchmark]: TraceAbstraction took 5078.94 ms. Allocated memory was 154.1 MB in the beginning and 229.6 MB in the end (delta: 75.5 MB). Free memory was 107.8 MB in the beginning and 91.9 MB in the end (delta: 15.9 MB). Peak memory consumption was 91.9 MB. Max. memory is 8.0 GB. [2020-12-22 11:08:03,844 INFO L168 Benchmark]: Witness Printer took 67.02 ms. Allocated memory is still 229.6 MB. Free memory was 91.9 MB in the beginning and 89.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:08:03,849 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 154.1 MB. Free memory is still 125.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 770.31 ms. Allocated memory is still 154.1 MB. Free memory was 128.6 MB in the beginning and 133.5 MB in the end (delta: -4.9 MB). Peak memory consumption was 32.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 72.32 ms. Allocated memory is still 154.1 MB. Free memory was 133.5 MB in the beginning and 131.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 50.07 ms. Allocated memory is still 154.1 MB. Free memory was 131.4 MB in the beginning and 130.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 670.10 ms. Allocated memory is still 154.1 MB. Free memory was 130.3 MB in the beginning and 108.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5078.94 ms. Allocated memory was 154.1 MB in the beginning and 229.6 MB in the end (delta: 75.5 MB). Free memory was 107.8 MB in the beginning and 91.9 MB in the end (delta: 15.9 MB). Peak memory consumption was 91.9 MB. Max. memory is 8.0 GB. * Witness Printer took 67.02 ms. Allocated memory is still 229.6 MB. Free memory was 91.9 MB in the beginning and 89.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 815 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 25 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 71 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.9s, 82 PlacesBefore, 32 PlacesAfterwards, 74 TransitionsBefore, 23 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 61 TotalNumberOfCompositions, 2448 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: 4.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 256 SDtfs, 270 SDslu, 436 SDs, 0 SdLazy, 155 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 432 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 5235 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...