/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 00:17:45,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 00:17:45,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 00:17:45,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-05 00:17:45,076 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-05 00:17:45,081 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-05 00:17:45,084 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-05 00:17:45,090 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-05 00:17:45,092 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-05 00:17:45,098 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-05 00:17:45,099 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-05 00:17:45,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-05 00:17:45,100 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 00:17:45,102 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 00:17:45,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 00:17:45,104 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 00:17:45,105 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 00:17:45,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 00:17:45,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 00:17:45,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 00:17:45,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 00:17:45,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 00:17:45,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 00:17:45,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 00:17:45,127 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-05 00:17:45,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-05 00:17:45,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-05 00:17:45,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-05 00:17:45,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-05 00:17:45,129 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-05 00:17:45,129 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-05 00:17:45,130 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-05 00:17:45,130 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-05 00:17:45,131 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-05 00:17:45,131 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-05 00:17:45,132 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-05 00:17:45,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-05 00:17:45,132 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-05 00:17:45,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 00:17:45,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 00:17:45,134 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 00:17:45,139 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-06-05 00:17:45,160 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 00:17:45,160 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 00:17:45,160 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 00:17:45,160 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 00:17:45,161 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 00:17:45,161 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 00:17:45,161 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 00:17:45,162 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 00:17:45,162 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 00:17:45,162 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 00:17:45,162 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 00:17:45,162 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 00:17:45,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 00:17:45,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 00:17:45,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 00:17:45,163 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 00:17:45,163 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 00:17:45,163 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 00:17:45,163 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 00:17:45,163 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 00:17:45,163 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 00:17:45,163 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 00:17:45,163 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 00:17:45,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 00:17:45,164 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 00:17:45,164 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 00:17:45,164 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 00:17:45,164 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 00:17:45,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 00:17:45,170 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 00:17:45,170 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 00:17:45,170 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 00:17:45,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 00:17:45,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 00:17:45,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 00:17:45,485 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 00:17:45,487 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 00:17:45,487 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i [2021-06-05 00:17:45,547 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fec604376/4f930b5f0d024ef98b51123825d9d82a/FLAG3db0a679c [2021-06-05 00:17:46,067 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 00:17:46,068 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i [2021-06-05 00:17:46,084 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fec604376/4f930b5f0d024ef98b51123825d9d82a/FLAG3db0a679c [2021-06-05 00:17:46,367 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fec604376/4f930b5f0d024ef98b51123825d9d82a [2021-06-05 00:17:46,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 00:17:46,370 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 00:17:46,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 00:17:46,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 00:17:46,387 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 00:17:46,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:17:46" (1/1) ... [2021-06-05 00:17:46,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d47ede0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:17:46, skipping insertion in model container [2021-06-05 00:17:46,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:17:46" (1/1) ... [2021-06-05 00:17:46,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 00:17:46,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 00:17:46,607 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i[950,963] [2021-06-05 00:17:46,792 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 00:17:46,798 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 00:17:46,809 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i[950,963] [2021-06-05 00:17:46,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 00:17:46,915 INFO L208 MainTranslator]: Completed translation [2021-06-05 00:17:46,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:17:46 WrapperNode [2021-06-05 00:17:46,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 00:17:46,917 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 00:17:46,917 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 00:17:46,917 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 00:17:46,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:17:46" (1/1) ... [2021-06-05 00:17:46,952 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:17:46" (1/1) ... [2021-06-05 00:17:46,974 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 00:17:46,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 00:17:46,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 00:17:46,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 00:17:46,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:17:46" (1/1) ... [2021-06-05 00:17:46,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:17:46" (1/1) ... [2021-06-05 00:17:46,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:17:46" (1/1) ... [2021-06-05 00:17:46,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:17:46" (1/1) ... [2021-06-05 00:17:47,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:17:46" (1/1) ... [2021-06-05 00:17:47,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:17:46" (1/1) ... [2021-06-05 00:17:47,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:17:46" (1/1) ... [2021-06-05 00:17:47,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 00:17:47,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 00:17:47,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 00:17:47,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 00:17:47,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:17:46" (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 [2021-06-05 00:17:47,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 00:17:47,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 00:17:47,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 00:17:47,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 00:17:47,102 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 00:17:47,103 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 00:17:47,103 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 00:17:47,103 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 00:17:47,104 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 00:17:47,104 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 00:17:47,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 00:17:47,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 00:17:47,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 00:17:47,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 00:17:47,105 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 00:17:47,450 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 00:17:47,450 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 00:17:47,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:17:47 BoogieIcfgContainer [2021-06-05 00:17:47,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 00:17:47,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 00:17:47,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 00:17:47,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 00:17:47,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 12:17:46" (1/3) ... [2021-06-05 00:17:47,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@105b11b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:17:47, skipping insertion in model container [2021-06-05 00:17:47,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:17:46" (2/3) ... [2021-06-05 00:17:47,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@105b11b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:17:47, skipping insertion in model container [2021-06-05 00:17:47,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:17:47" (3/3) ... [2021-06-05 00:17:47,458 INFO L111 eAbstractionObserver]: Analyzing ICFG safe030_tso.oepc.i [2021-06-05 00:17:47,462 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 00:17:47,462 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 00:17:47,463 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 00:17:47,463 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 00:17:47,486 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,487 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,487 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,487 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,487 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,487 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,487 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,488 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,488 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,488 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,488 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,488 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,489 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,489 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,489 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,490 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,490 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,490 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,490 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,490 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,491 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,491 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,491 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,491 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,491 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,492 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,492 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,492 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,492 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,492 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,492 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,493 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,494 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,495 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,495 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,495 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,499 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,500 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,501 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,501 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,501 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,502 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 00:17:47,503 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 00:17:47,519 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 00:17:47,533 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 00:17:47,533 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 00:17:47,533 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 00:17:47,534 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 00:17:47,534 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 00:17:47,534 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 00:17:47,534 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 00:17:47,534 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 00:17:47,542 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 90 places, 82 transitions, 179 flow [2021-06-05 00:17:48,104 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9330 states, 9328 states have (on average 3.5629288164665525) internal successors, (33235), 9329 states have internal predecessors, (33235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:48,132 INFO L276 IsEmpty]: Start isEmpty. Operand has 9330 states, 9328 states have (on average 3.5629288164665525) internal successors, (33235), 9329 states have internal predecessors, (33235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:48,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-06-05 00:17:48,181 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:17:48,181 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:17:48,182 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:17:48,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:17:48,186 INFO L82 PathProgramCache]: Analyzing trace with hash 292083127, now seen corresponding path program 1 times [2021-06-05 00:17:48,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:17:48,203 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800855064] [2021-06-05 00:17:48,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:17:48,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:17:48,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:17:48,696 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:17:48,696 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800855064] [2021-06-05 00:17:48,697 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800855064] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:17:48,697 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:17:48,697 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:17:48,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125487546] [2021-06-05 00:17:48,701 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:17:48,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:17:48,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:17:48,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:17:48,737 INFO L87 Difference]: Start difference. First operand has 9330 states, 9328 states have (on average 3.5629288164665525) internal successors, (33235), 9329 states have internal predecessors, (33235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:49,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:17:49,276 INFO L93 Difference]: Finished difference Result 17929 states and 62892 transitions. [2021-06-05 00:17:49,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 00:17:49,289 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-06-05 00:17:49,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:17:49,342 INFO L225 Difference]: With dead ends: 17929 [2021-06-05 00:17:49,342 INFO L226 Difference]: Without dead ends: 5742 [2021-06-05 00:17:49,343 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 175.5ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:17:49,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5742 states. [2021-06-05 00:17:49,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5742 to 5094. [2021-06-05 00:17:49,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5094 states, 5093 states have (on average 3.297663459650501) internal successors, (16795), 5093 states have internal predecessors, (16795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:49,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5094 states to 5094 states and 16795 transitions. [2021-06-05 00:17:49,691 INFO L78 Accepts]: Start accepts. Automaton has 5094 states and 16795 transitions. Word has length 47 [2021-06-05 00:17:49,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:17:49,692 INFO L482 AbstractCegarLoop]: Abstraction has 5094 states and 16795 transitions. [2021-06-05 00:17:49,693 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:49,693 INFO L276 IsEmpty]: Start isEmpty. Operand 5094 states and 16795 transitions. [2021-06-05 00:17:49,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-06-05 00:17:49,711 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:17:49,711 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:17:49,711 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 00:17:49,712 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:17:49,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:17:49,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1989202966, now seen corresponding path program 1 times [2021-06-05 00:17:49,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:17:49,716 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350640899] [2021-06-05 00:17:49,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:17:49,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:17:49,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:17:49,877 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:17:49,877 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350640899] [2021-06-05 00:17:49,877 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350640899] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:17:49,878 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:17:49,878 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:17:49,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113810077] [2021-06-05 00:17:49,879 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:17:49,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:17:49,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:17:49,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:17:49,880 INFO L87 Difference]: Start difference. First operand 5094 states and 16795 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:50,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:17:50,171 INFO L93 Difference]: Finished difference Result 6942 states and 22892 transitions. [2021-06-05 00:17:50,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 00:17:50,172 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-06-05 00:17:50,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:17:50,201 INFO L225 Difference]: With dead ends: 6942 [2021-06-05 00:17:50,201 INFO L226 Difference]: Without dead ends: 5346 [2021-06-05 00:17:50,202 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 202.1ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:17:50,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5346 states. [2021-06-05 00:17:50,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5346 to 4730. [2021-06-05 00:17:50,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4730 states, 4729 states have (on average 3.2681327976316346) internal successors, (15455), 4729 states have internal predecessors, (15455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:50,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4730 states to 4730 states and 15455 transitions. [2021-06-05 00:17:50,432 INFO L78 Accepts]: Start accepts. Automaton has 4730 states and 15455 transitions. Word has length 49 [2021-06-05 00:17:50,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:17:50,432 INFO L482 AbstractCegarLoop]: Abstraction has 4730 states and 15455 transitions. [2021-06-05 00:17:50,433 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:50,433 INFO L276 IsEmpty]: Start isEmpty. Operand 4730 states and 15455 transitions. [2021-06-05 00:17:50,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-06-05 00:17:50,447 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:17:50,447 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:17:50,448 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 00:17:50,448 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:17:50,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:17:50,448 INFO L82 PathProgramCache]: Analyzing trace with hash -514663752, now seen corresponding path program 1 times [2021-06-05 00:17:50,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:17:50,449 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625879448] [2021-06-05 00:17:50,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:17:50,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:17:50,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:17:50,582 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:17:50,583 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625879448] [2021-06-05 00:17:50,583 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625879448] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:17:50,583 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:17:50,583 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:17:50,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463978566] [2021-06-05 00:17:50,584 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:17:50,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:17:50,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:17:50,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:17:50,585 INFO L87 Difference]: Start difference. First operand 4730 states and 15455 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:50,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:17:50,873 INFO L93 Difference]: Finished difference Result 6258 states and 20490 transitions. [2021-06-05 00:17:50,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 00:17:50,874 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-06-05 00:17:50,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:17:50,913 INFO L225 Difference]: With dead ends: 6258 [2021-06-05 00:17:50,914 INFO L226 Difference]: Without dead ends: 5070 [2021-06-05 00:17:50,914 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 177.0ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:17:50,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5070 states. [2021-06-05 00:17:51,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5070 to 4486. [2021-06-05 00:17:51,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4486 states, 4485 states have (on average 3.2452619843924193) internal successors, (14555), 4485 states have internal predecessors, (14555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:51,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4486 states to 4486 states and 14555 transitions. [2021-06-05 00:17:51,053 INFO L78 Accepts]: Start accepts. Automaton has 4486 states and 14555 transitions. Word has length 49 [2021-06-05 00:17:51,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:17:51,055 INFO L482 AbstractCegarLoop]: Abstraction has 4486 states and 14555 transitions. [2021-06-05 00:17:51,055 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:51,055 INFO L276 IsEmpty]: Start isEmpty. Operand 4486 states and 14555 transitions. [2021-06-05 00:17:51,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-05 00:17:51,065 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:17:51,065 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:17:51,066 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 00:17:51,066 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:17:51,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:17:51,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1670070953, now seen corresponding path program 1 times [2021-06-05 00:17:51,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:17:51,067 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259989493] [2021-06-05 00:17:51,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:17:51,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:17:51,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:17:51,197 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:17:51,198 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259989493] [2021-06-05 00:17:51,198 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259989493] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:17:51,198 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:17:51,198 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:17:51,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181694408] [2021-06-05 00:17:51,199 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:17:51,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:17:51,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:17:51,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:17:51,206 INFO L87 Difference]: Start difference. First operand 4486 states and 14555 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:51,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:17:51,368 INFO L93 Difference]: Finished difference Result 5126 states and 16582 transitions. [2021-06-05 00:17:51,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 00:17:51,385 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-06-05 00:17:51,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:17:51,401 INFO L225 Difference]: With dead ends: 5126 [2021-06-05 00:17:51,401 INFO L226 Difference]: Without dead ends: 4426 [2021-06-05 00:17:51,402 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 109.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:17:51,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4426 states. [2021-06-05 00:17:51,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4426 to 4334. [2021-06-05 00:17:51,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4334 states, 4333 states have (on average 3.2351719363027924) internal successors, (14018), 4333 states have internal predecessors, (14018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:51,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4334 states to 4334 states and 14018 transitions. [2021-06-05 00:17:51,535 INFO L78 Accepts]: Start accepts. Automaton has 4334 states and 14018 transitions. Word has length 51 [2021-06-05 00:17:51,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:17:51,535 INFO L482 AbstractCegarLoop]: Abstraction has 4334 states and 14018 transitions. [2021-06-05 00:17:51,535 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:51,536 INFO L276 IsEmpty]: Start isEmpty. Operand 4334 states and 14018 transitions. [2021-06-05 00:17:51,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-06-05 00:17:51,545 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:17:51,545 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:17:51,545 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 00:17:51,546 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:17:51,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:17:51,546 INFO L82 PathProgramCache]: Analyzing trace with hash -717898673, now seen corresponding path program 1 times [2021-06-05 00:17:51,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:17:51,547 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121790594] [2021-06-05 00:17:51,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:17:51,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:17:51,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:17:51,648 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:17:51,649 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121790594] [2021-06-05 00:17:51,649 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121790594] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:17:51,649 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:17:51,649 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:17:51,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646956271] [2021-06-05 00:17:51,649 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:17:51,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:17:51,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:17:51,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:17:51,651 INFO L87 Difference]: Start difference. First operand 4334 states and 14018 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:51,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:17:51,806 INFO L93 Difference]: Finished difference Result 6274 states and 19953 transitions. [2021-06-05 00:17:51,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 00:17:51,807 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-06-05 00:17:51,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:17:51,823 INFO L225 Difference]: With dead ends: 6274 [2021-06-05 00:17:51,823 INFO L226 Difference]: Without dead ends: 4694 [2021-06-05 00:17:51,824 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 115.5ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:17:51,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4694 states. [2021-06-05 00:17:51,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4694 to 4030. [2021-06-05 00:17:51,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4030 states, 4029 states have (on average 3.166790766939687) internal successors, (12759), 4029 states have internal predecessors, (12759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:51,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4030 states to 4030 states and 12759 transitions. [2021-06-05 00:17:51,992 INFO L78 Accepts]: Start accepts. Automaton has 4030 states and 12759 transitions. Word has length 52 [2021-06-05 00:17:51,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:17:51,993 INFO L482 AbstractCegarLoop]: Abstraction has 4030 states and 12759 transitions. [2021-06-05 00:17:51,993 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:51,994 INFO L276 IsEmpty]: Start isEmpty. Operand 4030 states and 12759 transitions. [2021-06-05 00:17:52,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-06-05 00:17:52,003 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:17:52,003 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:17:52,003 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 00:17:52,004 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:17:52,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:17:52,004 INFO L82 PathProgramCache]: Analyzing trace with hash 399864681, now seen corresponding path program 1 times [2021-06-05 00:17:52,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:17:52,005 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106395173] [2021-06-05 00:17:52,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:17:52,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:17:52,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:17:52,114 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:17:52,114 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106395173] [2021-06-05 00:17:52,115 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106395173] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:17:52,115 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:17:52,115 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:17:52,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944059211] [2021-06-05 00:17:52,116 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:17:52,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:17:52,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:17:52,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:17:52,117 INFO L87 Difference]: Start difference. First operand 4030 states and 12759 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:52,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:17:52,226 INFO L93 Difference]: Finished difference Result 5830 states and 18337 transitions. [2021-06-05 00:17:52,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 00:17:52,227 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-06-05 00:17:52,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:17:52,241 INFO L225 Difference]: With dead ends: 5830 [2021-06-05 00:17:52,241 INFO L226 Difference]: Without dead ends: 4390 [2021-06-05 00:17:52,242 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 91.7ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:17:52,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4390 states. [2021-06-05 00:17:52,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4390 to 3698. [2021-06-05 00:17:52,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3698 states, 3697 states have (on average 3.1317284284555043) internal successors, (11578), 3697 states have internal predecessors, (11578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:52,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3698 states to 3698 states and 11578 transitions. [2021-06-05 00:17:52,339 INFO L78 Accepts]: Start accepts. Automaton has 3698 states and 11578 transitions. Word has length 52 [2021-06-05 00:17:52,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:17:52,340 INFO L482 AbstractCegarLoop]: Abstraction has 3698 states and 11578 transitions. [2021-06-05 00:17:52,340 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:52,341 INFO L276 IsEmpty]: Start isEmpty. Operand 3698 states and 11578 transitions. [2021-06-05 00:17:52,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-06-05 00:17:52,349 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:17:52,349 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:17:52,350 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 00:17:52,350 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:17:52,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:17:52,350 INFO L82 PathProgramCache]: Analyzing trace with hash 936249593, now seen corresponding path program 1 times [2021-06-05 00:17:52,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:17:52,352 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376094851] [2021-06-05 00:17:52,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:17:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:17:52,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:17:52,457 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:17:52,457 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376094851] [2021-06-05 00:17:52,457 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376094851] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:17:52,457 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:17:52,457 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:17:52,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790530587] [2021-06-05 00:17:52,457 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:17:52,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:17:52,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:17:52,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:17:52,458 INFO L87 Difference]: Start difference. First operand 3698 states and 11578 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:52,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:17:52,639 INFO L93 Difference]: Finished difference Result 6054 states and 18945 transitions. [2021-06-05 00:17:52,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 00:17:52,640 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-06-05 00:17:52,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:17:52,654 INFO L225 Difference]: With dead ends: 6054 [2021-06-05 00:17:52,654 INFO L226 Difference]: Without dead ends: 4550 [2021-06-05 00:17:52,655 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 146.5ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 00:17:52,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4550 states. [2021-06-05 00:17:52,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4550 to 3394. [2021-06-05 00:17:52,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3394 states, 3393 states have (on average 3.09755378720896) internal successors, (10510), 3393 states have internal predecessors, (10510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:52,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3394 states to 3394 states and 10510 transitions. [2021-06-05 00:17:52,823 INFO L78 Accepts]: Start accepts. Automaton has 3394 states and 10510 transitions. Word has length 52 [2021-06-05 00:17:52,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:17:52,823 INFO L482 AbstractCegarLoop]: Abstraction has 3394 states and 10510 transitions. [2021-06-05 00:17:52,823 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:52,823 INFO L276 IsEmpty]: Start isEmpty. Operand 3394 states and 10510 transitions. [2021-06-05 00:17:52,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-05 00:17:52,831 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:17:52,831 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:17:52,831 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 00:17:52,831 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:17:52,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:17:52,831 INFO L82 PathProgramCache]: Analyzing trace with hash 687458870, now seen corresponding path program 1 times [2021-06-05 00:17:52,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:17:52,832 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032406470] [2021-06-05 00:17:52,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:17:52,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:17:52,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:17:52,897 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:17:52,897 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032406470] [2021-06-05 00:17:52,897 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032406470] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:17:52,898 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:17:52,898 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 00:17:52,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902359825] [2021-06-05 00:17:52,898 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 00:17:52,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:17:52,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 00:17:52,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 00:17:52,899 INFO L87 Difference]: Start difference. First operand 3394 states and 10510 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:53,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:17:53,004 INFO L93 Difference]: Finished difference Result 4147 states and 12611 transitions. [2021-06-05 00:17:53,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 00:17:53,005 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-06-05 00:17:53,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:17:53,016 INFO L225 Difference]: With dead ends: 4147 [2021-06-05 00:17:53,017 INFO L226 Difference]: Without dead ends: 3028 [2021-06-05 00:17:53,017 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 80.7ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 00:17:53,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3028 states. [2021-06-05 00:17:53,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3028 to 3028. [2021-06-05 00:17:53,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3028 states, 3027 states have (on average 3.028741328047572) internal successors, (9168), 3027 states have internal predecessors, (9168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:53,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3028 states to 3028 states and 9168 transitions. [2021-06-05 00:17:53,079 INFO L78 Accepts]: Start accepts. Automaton has 3028 states and 9168 transitions. Word has length 53 [2021-06-05 00:17:53,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:17:53,079 INFO L482 AbstractCegarLoop]: Abstraction has 3028 states and 9168 transitions. [2021-06-05 00:17:53,080 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:53,080 INFO L276 IsEmpty]: Start isEmpty. Operand 3028 states and 9168 transitions. [2021-06-05 00:17:53,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-06-05 00:17:53,085 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:17:53,085 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:17:53,085 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 00:17:53,086 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:17:53,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:17:53,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1246274999, now seen corresponding path program 1 times [2021-06-05 00:17:53,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:17:53,086 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982967497] [2021-06-05 00:17:53,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:17:53,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:17:53,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:17:53,153 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:17:53,153 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982967497] [2021-06-05 00:17:53,153 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982967497] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:17:53,153 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:17:53,153 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 00:17:53,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042171400] [2021-06-05 00:17:53,154 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 00:17:53,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:17:53,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 00:17:53,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 00:17:53,154 INFO L87 Difference]: Start difference. First operand 3028 states and 9168 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:53,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:17:53,281 INFO L93 Difference]: Finished difference Result 3001 states and 8835 transitions. [2021-06-05 00:17:53,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 00:17:53,282 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-06-05 00:17:53,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:17:53,287 INFO L225 Difference]: With dead ends: 3001 [2021-06-05 00:17:53,287 INFO L226 Difference]: Without dead ends: 1976 [2021-06-05 00:17:53,287 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 100.6ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-05 00:17:53,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1976 states. [2021-06-05 00:17:53,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1976 to 1976. [2021-06-05 00:17:53,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1976 states, 1975 states have (on average 2.869367088607595) internal successors, (5667), 1975 states have internal predecessors, (5667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:53,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1976 states to 1976 states and 5667 transitions. [2021-06-05 00:17:53,325 INFO L78 Accepts]: Start accepts. Automaton has 1976 states and 5667 transitions. Word has length 55 [2021-06-05 00:17:53,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:17:53,326 INFO L482 AbstractCegarLoop]: Abstraction has 1976 states and 5667 transitions. [2021-06-05 00:17:53,326 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:53,326 INFO L276 IsEmpty]: Start isEmpty. Operand 1976 states and 5667 transitions. [2021-06-05 00:17:53,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-05 00:17:53,329 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 00:17:53,330 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 00:17:53,330 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 00:17:53,330 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 00:17:53,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 00:17:53,330 INFO L82 PathProgramCache]: Analyzing trace with hash 297892472, now seen corresponding path program 1 times [2021-06-05 00:17:53,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 00:17:53,331 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584751080] [2021-06-05 00:17:53,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 00:17:53,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 00:17:53,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 00:17:53,405 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 00:17:53,406 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584751080] [2021-06-05 00:17:53,406 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584751080] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 00:17:53,406 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 00:17:53,406 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 00:17:53,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847272607] [2021-06-05 00:17:53,406 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 00:17:53,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 00:17:53,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 00:17:53,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 00:17:53,407 INFO L87 Difference]: Start difference. First operand 1976 states and 5667 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:53,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 00:17:53,487 INFO L93 Difference]: Finished difference Result 1409 states and 3912 transitions. [2021-06-05 00:17:53,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 00:17:53,487 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-06-05 00:17:53,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 00:17:53,488 INFO L225 Difference]: With dead ends: 1409 [2021-06-05 00:17:53,488 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 00:17:53,488 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 87.4ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-06-05 00:17:53,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 00:17:53,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 00:17:53,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:53,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 00:17:53,489 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2021-06-05 00:17:53,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 00:17:53,489 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 00:17:53,489 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 00:17:53,489 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 00:17:53,489 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 00:17:53,489 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 00:17:53,491 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 00:17:53,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 12:17:53 BasicIcfg [2021-06-05 00:17:53,493 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 00:17:53,494 INFO L168 Benchmark]: Toolchain (without parser) took 7123.47 ms. Allocated memory was 379.6 MB in the beginning and 1.7 GB in the end (delta: 1.3 GB). Free memory was 341.9 MB in the beginning and 1.3 GB in the end (delta: -996.4 MB). Peak memory consumption was 346.1 MB. Max. memory is 16.0 GB. [2021-06-05 00:17:53,494 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 379.6 MB. Free memory is still 360.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 00:17:53,494 INFO L168 Benchmark]: CACSL2BoogieTranslator took 545.03 ms. Allocated memory is still 379.6 MB. Free memory was 341.8 MB in the beginning and 341.0 MB in the end (delta: 832.3 kB). Peak memory consumption was 7.5 MB. Max. memory is 16.0 GB. [2021-06-05 00:17:53,494 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.14 ms. Allocated memory is still 379.6 MB. Free memory was 341.0 MB in the beginning and 338.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 00:17:53,495 INFO L168 Benchmark]: Boogie Preprocessor took 40.38 ms. Allocated memory is still 379.6 MB. Free memory was 338.9 MB in the beginning and 337.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 00:17:53,495 INFO L168 Benchmark]: RCFGBuilder took 435.87 ms. Allocated memory is still 379.6 MB. Free memory was 337.5 MB in the beginning and 312.7 MB in the end (delta: 24.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-05 00:17:53,495 INFO L168 Benchmark]: TraceAbstraction took 6039.82 ms. Allocated memory was 379.6 MB in the beginning and 1.7 GB in the end (delta: 1.3 GB). Free memory was 312.7 MB in the beginning and 1.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 317.6 MB. Max. memory is 16.0 GB. [2021-06-05 00:17:53,497 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 379.6 MB. Free memory is still 360.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 545.03 ms. Allocated memory is still 379.6 MB. Free memory was 341.8 MB in the beginning and 341.0 MB in the end (delta: 832.3 kB). Peak memory consumption was 7.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 57.14 ms. Allocated memory is still 379.6 MB. Free memory was 341.0 MB in the beginning and 338.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 40.38 ms. Allocated memory is still 379.6 MB. Free memory was 338.9 MB in the beginning and 337.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 435.87 ms. Allocated memory is still 379.6 MB. Free memory was 337.5 MB in the beginning and 312.7 MB in the end (delta: 24.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6039.82 ms. Allocated memory was 379.6 MB in the beginning and 1.7 GB in the end (delta: 1.3 GB). Free memory was 312.7 MB in the beginning and 1.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 317.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 105 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5958.9ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 161.5ms, AutomataDifference: 2324.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 569.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1148 SDtfs, 1546 SDslu, 3777 SDs, 0 SdLazy, 380 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 377.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1286.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9330occurred in iteration=0, InterpolantAutomatonStates: 102, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1372.3ms AutomataMinimizationTime, 10 MinimizatonAttempts, 4452 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 38.4ms SsaConstructionTime, 276.4ms SatisfiabilityAnalysisTime, 996.6ms InterpolantComputationTime, 517 NumberOfCodeBlocks, 517 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 507 ConstructedInterpolants, 0 QuantifiedInterpolants, 2133 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...