/usr/bin/java -Xmx8000000000 -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-deagle/arithmetic_prog_ok.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-15 12:27:17,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 12:27:17,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 12:27:17,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-15 12:27:17,060 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-15 12:27:17,061 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-15 12:27:17,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-15 12:27:17,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-15 12:27:17,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-15 12:27:17,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-15 12:27:17,066 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-15 12:27:17,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-15 12:27:17,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-15 12:27:17,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-15 12:27:17,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-15 12:27:17,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-15 12:27:17,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-15 12:27:17,072 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-15 12:27:17,073 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-15 12:27:17,087 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-15 12:27:17,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-15 12:27:17,093 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-15 12:27:17,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-15 12:27:17,095 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-15 12:27:17,103 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-15 12:27:17,103 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-15 12:27:17,104 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-15 12:27:17,104 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-15 12:27:17,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-15 12:27:17,105 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-15 12:27:17,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-15 12:27:17,106 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-15 12:27:17,107 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-15 12:27:17,107 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-15 12:27:17,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-15 12:27:17,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-15 12:27:17,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-15 12:27:17,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-15 12:27:17,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 12:27:17,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 12:27:17,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 12:27:17,117 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 [2022-02-15 12:27:17,150 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 12:27:17,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 12:27:17,150 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-15 12:27:17,150 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-15 12:27:17,151 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-15 12:27:17,151 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-15 12:27:17,152 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-15 12:27:17,152 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-15 12:27:17,152 INFO L138 SettingsManager]: * Use SBE=true [2022-02-15 12:27:17,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 12:27:17,153 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-15 12:27:17,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 12:27:17,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-15 12:27:17,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 12:27:17,153 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 12:27:17,153 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 12:27:17,153 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 12:27:17,153 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-15 12:27:17,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 12:27:17,154 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 12:27:17,154 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 12:27:17,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 12:27:17,154 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 12:27:17,154 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 12:27:17,154 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 12:27:17,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 12:27:17,154 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 12:27:17,155 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-15 12:27:17,155 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-15 12:27:17,155 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-15 12:27:17,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-15 12:27:17,155 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-15 12:27:17,155 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-15 12:27:17,155 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-15 12:27:17,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 12:27:17,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 12:27:17,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 12:27:17,388 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 12:27:17,388 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 12:27:17,390 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i [2022-02-15 12:27:17,440 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aed074ac6/ab5bcc0fd5c64d289ece17e7f146f7cf/FLAGee188dd0b [2022-02-15 12:27:17,874 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 12:27:17,875 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i [2022-02-15 12:27:17,895 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aed074ac6/ab5bcc0fd5c64d289ece17e7f146f7cf/FLAGee188dd0b [2022-02-15 12:27:18,217 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aed074ac6/ab5bcc0fd5c64d289ece17e7f146f7cf [2022-02-15 12:27:18,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 12:27:18,220 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-15 12:27:18,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 12:27:18,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 12:27:18,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 12:27:18,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:27:18" (1/1) ... [2022-02-15 12:27:18,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6615c655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:27:18, skipping insertion in model container [2022-02-15 12:27:18,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:27:18" (1/1) ... [2022-02-15 12:27:18,230 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 12:27:18,267 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 12:27:18,593 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i[39757,39770] [2022-02-15 12:27:18,595 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 12:27:18,604 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 12:27:18,638 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i[39757,39770] [2022-02-15 12:27:18,638 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 12:27:18,678 INFO L208 MainTranslator]: Completed translation [2022-02-15 12:27:18,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:27:18 WrapperNode [2022-02-15 12:27:18,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 12:27:18,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-15 12:27:18,680 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-15 12:27:18,680 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-15 12:27:18,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:27:18" (1/1) ... [2022-02-15 12:27:18,706 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:27:18" (1/1) ... [2022-02-15 12:27:18,724 INFO L137 Inliner]: procedures = 243, calls = 50, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 81 [2022-02-15 12:27:18,725 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-15 12:27:18,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 12:27:18,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 12:27:18,726 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 12:27:18,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:27:18" (1/1) ... [2022-02-15 12:27:18,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:27:18" (1/1) ... [2022-02-15 12:27:18,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:27:18" (1/1) ... [2022-02-15 12:27:18,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:27:18" (1/1) ... [2022-02-15 12:27:18,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:27:18" (1/1) ... [2022-02-15 12:27:18,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:27:18" (1/1) ... [2022-02-15 12:27:18,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:27:18" (1/1) ... [2022-02-15 12:27:18,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 12:27:18,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 12:27:18,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 12:27:18,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 12:27:18,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:27:18" (1/1) ... [2022-02-15 12:27:18,757 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 12:27:18,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 12:27:18,778 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-15 12:27:18,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-15 12:27:18,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-15 12:27:18,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 12:27:18,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-02-15 12:27:18,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 12:27:18,816 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-15 12:27:18,816 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-15 12:27:18,816 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-15 12:27:18,817 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-15 12:27:18,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 12:27:18,818 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-02-15 12:27:18,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 12:27:18,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 12:27:18,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 12:27:18,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 12:27:18,820 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-15 12:27:18,917 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 12:27:18,918 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 12:27:19,178 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 12:27:19,185 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 12:27:19,186 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-02-15 12:27:19,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:27:19 BoogieIcfgContainer [2022-02-15 12:27:19,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 12:27:19,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 12:27:19,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 12:27:19,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 12:27:19,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 12:27:18" (1/3) ... [2022-02-15 12:27:19,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52dfa3c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 12:27:19, skipping insertion in model container [2022-02-15 12:27:19,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:27:18" (2/3) ... [2022-02-15 12:27:19,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52dfa3c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 12:27:19, skipping insertion in model container [2022-02-15 12:27:19,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:27:19" (3/3) ... [2022-02-15 12:27:19,194 INFO L111 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_ok.i [2022-02-15 12:27:19,198 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-15 12:27:19,198 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-15 12:27:19,198 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 12:27:19,198 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-15 12:27:19,229 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,229 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,229 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,229 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,230 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,230 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,230 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,230 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,230 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,231 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,231 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,231 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,231 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,231 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,232 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,232 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,232 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,232 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,233 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,233 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,233 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,233 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,234 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,234 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,234 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,234 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,235 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,235 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,235 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,235 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,236 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,236 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,236 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,236 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,236 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,236 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,237 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,237 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,237 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,237 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,237 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,237 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,238 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,238 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,238 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,238 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,239 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,239 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,239 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,239 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,239 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,239 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,239 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,240 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,240 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,240 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,240 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,240 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,241 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,241 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,241 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,241 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,242 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,242 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,242 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,242 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,242 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,242 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,243 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,243 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,243 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,243 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,244 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,244 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,244 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,244 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,245 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,245 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,245 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,245 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,245 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,246 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,246 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,246 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,246 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,246 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,246 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,247 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,247 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,247 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,247 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,247 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,250 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,250 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,250 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,251 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,251 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,251 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,251 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,251 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,251 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,253 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,254 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,254 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,254 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,254 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,254 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,254 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,254 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,255 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:19,257 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-15 12:27:19,292 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 12:27:19,297 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-15 12:27:19,298 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-15 12:27:19,307 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 132 places, 135 transitions, 286 flow [2022-02-15 12:27:19,439 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2089 states, 2088 states have (on average 2.893199233716475) internal successors, (6041), 2088 states have internal predecessors, (6041), 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) [2022-02-15 12:27:19,448 INFO L276 IsEmpty]: Start isEmpty. Operand has 2089 states, 2088 states have (on average 2.893199233716475) internal successors, (6041), 2088 states have internal predecessors, (6041), 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) [2022-02-15 12:27:19,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-02-15 12:27:19,477 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 12:27:19,477 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 12:27:19,478 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 12:27:19,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 12:27:19,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1487921136, now seen corresponding path program 1 times [2022-02-15 12:27:19,494 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 12:27:19,494 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210740099] [2022-02-15 12:27:19,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 12:27:19,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 12:27:19,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 12:27:19,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 12:27:19,749 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 12:27:19,749 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210740099] [2022-02-15 12:27:19,750 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210740099] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 12:27:19,750 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 12:27:19,750 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-15 12:27:19,751 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006112675] [2022-02-15 12:27:19,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 12:27:19,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-15 12:27:19,757 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 12:27:19,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-15 12:27:19,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-15 12:27:19,794 INFO L87 Difference]: Start difference. First operand has 2089 states, 2088 states have (on average 2.893199233716475) internal successors, (6041), 2088 states have internal predecessors, (6041), 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 2 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 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) [2022-02-15 12:27:19,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 12:27:19,845 INFO L93 Difference]: Finished difference Result 2089 states and 5679 transitions. [2022-02-15 12:27:19,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-15 12:27:19,847 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 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 86 [2022-02-15 12:27:19,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 12:27:19,873 INFO L225 Difference]: With dead ends: 2089 [2022-02-15 12:27:19,873 INFO L226 Difference]: Without dead ends: 2089 [2022-02-15 12:27:19,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-15 12:27:19,877 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 12:27:19,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 113 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 12:27:19,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2022-02-15 12:27:19,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 2089. [2022-02-15 12:27:19,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2089 states, 2088 states have (on average 2.7198275862068964) internal successors, (5679), 2088 states have internal predecessors, (5679), 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) [2022-02-15 12:27:20,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 5679 transitions. [2022-02-15 12:27:20,004 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 5679 transitions. Word has length 86 [2022-02-15 12:27:20,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 12:27:20,005 INFO L470 AbstractCegarLoop]: Abstraction has 2089 states and 5679 transitions. [2022-02-15 12:27:20,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 43.0) internal successors, (86), 2 states have internal predecessors, (86), 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) [2022-02-15 12:27:20,006 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 5679 transitions. [2022-02-15 12:27:20,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-02-15 12:27:20,014 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 12:27:20,014 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 12:27:20,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 12:27:20,014 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 12:27:20,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 12:27:20,018 INFO L85 PathProgramCache]: Analyzing trace with hash 236112238, now seen corresponding path program 1 times [2022-02-15 12:27:20,018 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 12:27:20,019 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147305225] [2022-02-15 12:27:20,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 12:27:20,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 12:27:20,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 12:27:20,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 12:27:20,153 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 12:27:20,153 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147305225] [2022-02-15 12:27:20,153 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147305225] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 12:27:20,153 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 12:27:20,153 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-15 12:27:20,153 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828837998] [2022-02-15 12:27:20,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 12:27:20,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-15 12:27:20,155 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 12:27:20,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-15 12:27:20,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-15 12:27:20,156 INFO L87 Difference]: Start difference. First operand 2089 states and 5679 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2022-02-15 12:27:20,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 12:27:20,224 INFO L93 Difference]: Finished difference Result 3363 states and 9274 transitions. [2022-02-15 12:27:20,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 12:27:20,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 86 [2022-02-15 12:27:20,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 12:27:20,289 INFO L225 Difference]: With dead ends: 3363 [2022-02-15 12:27:20,289 INFO L226 Difference]: Without dead ends: 3363 [2022-02-15 12:27:20,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-15 12:27:20,293 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 46 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 12:27:20,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 250 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 12:27:20,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3363 states. [2022-02-15 12:27:20,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3363 to 2187. [2022-02-15 12:27:20,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2187 states, 2186 states have (on average 2.7209515096065875) internal successors, (5948), 2186 states have internal predecessors, (5948), 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) [2022-02-15 12:27:20,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2187 states to 2187 states and 5948 transitions. [2022-02-15 12:27:20,354 INFO L78 Accepts]: Start accepts. Automaton has 2187 states and 5948 transitions. Word has length 86 [2022-02-15 12:27:20,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 12:27:20,355 INFO L470 AbstractCegarLoop]: Abstraction has 2187 states and 5948 transitions. [2022-02-15 12:27:20,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2022-02-15 12:27:20,356 INFO L276 IsEmpty]: Start isEmpty. Operand 2187 states and 5948 transitions. [2022-02-15 12:27:20,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-02-15 12:27:20,361 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 12:27:20,362 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 12:27:20,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 12:27:20,362 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 12:27:20,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 12:27:20,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1928594406, now seen corresponding path program 1 times [2022-02-15 12:27:20,364 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 12:27:20,364 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037374150] [2022-02-15 12:27:20,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 12:27:20,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 12:27:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 12:27:20,489 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 12:27:20,490 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 12:27:20,490 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037374150] [2022-02-15 12:27:20,490 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037374150] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 12:27:20,490 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 12:27:20,490 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-15 12:27:20,490 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382357145] [2022-02-15 12:27:20,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 12:27:20,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-15 12:27:20,491 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 12:27:20,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-15 12:27:20,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-15 12:27:20,492 INFO L87 Difference]: Start difference. First operand 2187 states and 5948 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2022-02-15 12:27:20,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 12:27:20,547 INFO L93 Difference]: Finished difference Result 3405 states and 9409 transitions. [2022-02-15 12:27:20,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 12:27:20,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 97 [2022-02-15 12:27:20,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 12:27:20,564 INFO L225 Difference]: With dead ends: 3405 [2022-02-15 12:27:20,564 INFO L226 Difference]: Without dead ends: 3405 [2022-02-15 12:27:20,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-15 12:27:20,569 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 41 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 12:27:20,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 241 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 12:27:20,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3405 states. [2022-02-15 12:27:20,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3405 to 2274. [2022-02-15 12:27:20,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2274 states, 2273 states have (on average 2.722833260008799) internal successors, (6189), 2273 states have internal predecessors, (6189), 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) [2022-02-15 12:27:20,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2274 states to 2274 states and 6189 transitions. [2022-02-15 12:27:20,649 INFO L78 Accepts]: Start accepts. Automaton has 2274 states and 6189 transitions. Word has length 97 [2022-02-15 12:27:20,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 12:27:20,651 INFO L470 AbstractCegarLoop]: Abstraction has 2274 states and 6189 transitions. [2022-02-15 12:27:20,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2022-02-15 12:27:20,651 INFO L276 IsEmpty]: Start isEmpty. Operand 2274 states and 6189 transitions. [2022-02-15 12:27:20,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 12:27:20,661 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 12:27:20,661 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 12:27:20,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 12:27:20,662 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 12:27:20,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 12:27:20,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1282674777, now seen corresponding path program 1 times [2022-02-15 12:27:20,663 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 12:27:20,663 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025440167] [2022-02-15 12:27:20,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 12:27:20,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 12:27:20,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 12:27:20,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 12:27:20,800 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 12:27:20,801 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025440167] [2022-02-15 12:27:20,801 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025440167] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 12:27:20,801 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363445246] [2022-02-15 12:27:20,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 12:27:20,801 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 12:27:20,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 12:27:20,803 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 12:27:20,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-15 12:27:20,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 12:27:20,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-15 12:27:20,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 12:27:21,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 12:27:21,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 12:27:21,469 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 12:27:21,469 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [363445246] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-15 12:27:21,469 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-15 12:27:21,469 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-02-15 12:27:21,472 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556167326] [2022-02-15 12:27:21,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-15 12:27:21,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-15 12:27:21,474 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 12:27:21,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-15 12:27:21,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-02-15 12:27:21,475 INFO L87 Difference]: Start difference. First operand 2274 states and 6189 transitions. Second operand has 11 states, 11 states have (on average 17.545454545454547) internal successors, (193), 11 states have internal predecessors, (193), 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) [2022-02-15 12:27:22,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 12:27:22,005 INFO L93 Difference]: Finished difference Result 10702 states and 30227 transitions. [2022-02-15 12:27:22,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-15 12:27:22,005 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 17.545454545454547) internal successors, (193), 11 states have internal predecessors, (193), 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 109 [2022-02-15 12:27:22,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 12:27:22,066 INFO L225 Difference]: With dead ends: 10702 [2022-02-15 12:27:22,067 INFO L226 Difference]: Without dead ends: 10702 [2022-02-15 12:27:22,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 583 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=529, Invalid=1451, Unknown=0, NotChecked=0, Total=1980 [2022-02-15 12:27:22,074 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 1006 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1006 SdHoareTripleChecker+Valid, 1311 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 12:27:22,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1006 Valid, 1311 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 12:27:22,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10702 states. [2022-02-15 12:27:22,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10702 to 8115. [2022-02-15 12:27:22,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8115 states, 8114 states have (on average 2.8083559280256347) internal successors, (22787), 8114 states have internal predecessors, (22787), 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) [2022-02-15 12:27:22,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8115 states to 8115 states and 22787 transitions. [2022-02-15 12:27:22,343 INFO L78 Accepts]: Start accepts. Automaton has 8115 states and 22787 transitions. Word has length 109 [2022-02-15 12:27:22,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 12:27:22,344 INFO L470 AbstractCegarLoop]: Abstraction has 8115 states and 22787 transitions. [2022-02-15 12:27:22,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 17.545454545454547) internal successors, (193), 11 states have internal predecessors, (193), 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) [2022-02-15 12:27:22,345 INFO L276 IsEmpty]: Start isEmpty. Operand 8115 states and 22787 transitions. [2022-02-15 12:27:22,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-02-15 12:27:22,367 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 12:27:22,367 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 12:27:22,390 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-15 12:27:22,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 12:27:22,591 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 12:27:22,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 12:27:22,591 INFO L85 PathProgramCache]: Analyzing trace with hash 128793966, now seen corresponding path program 2 times [2022-02-15 12:27:22,591 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 12:27:22,592 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105316374] [2022-02-15 12:27:22,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 12:27:22,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 12:27:22,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 12:27:22,716 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 21 proven. 14 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-02-15 12:27:22,717 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 12:27:22,717 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105316374] [2022-02-15 12:27:22,717 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105316374] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 12:27:22,717 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491253719] [2022-02-15 12:27:22,717 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-15 12:27:22,717 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 12:27:22,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 12:27:22,719 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 12:27:22,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-15 12:27:22,842 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-15 12:27:22,842 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-15 12:27:22,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 6 conjunts are in the unsatisfiable core [2022-02-15 12:27:22,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 12:27:23,046 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 21 proven. 14 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-02-15 12:27:23,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 12:27:23,239 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 21 proven. 14 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-02-15 12:27:23,239 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491253719] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-15 12:27:23,239 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-15 12:27:23,239 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2022-02-15 12:27:23,239 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916461717] [2022-02-15 12:27:23,240 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-15 12:27:23,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-15 12:27:23,240 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 12:27:23,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-15 12:27:23,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-02-15 12:27:23,241 INFO L87 Difference]: Start difference. First operand 8115 states and 22787 transitions. Second operand has 11 states, 11 states have (on average 15.0) internal successors, (165), 11 states have internal predecessors, (165), 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) [2022-02-15 12:27:23,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 12:27:23,429 INFO L93 Difference]: Finished difference Result 14085 states and 39895 transitions. [2022-02-15 12:27:23,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-15 12:27:23,435 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.0) internal successors, (165), 11 states have internal predecessors, (165), 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 143 [2022-02-15 12:27:23,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 12:27:23,473 INFO L225 Difference]: With dead ends: 14085 [2022-02-15 12:27:23,474 INFO L226 Difference]: Without dead ends: 14085 [2022-02-15 12:27:23,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 287 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2022-02-15 12:27:23,475 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 540 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 12:27:23,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [540 Valid, 901 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 12:27:23,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14085 states. [2022-02-15 12:27:23,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14085 to 14085. [2022-02-15 12:27:23,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14085 states, 14084 states have (on average 2.8326469752911105) internal successors, (39895), 14084 states have internal predecessors, (39895), 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) [2022-02-15 12:27:23,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14085 states to 14085 states and 39895 transitions. [2022-02-15 12:27:23,870 INFO L78 Accepts]: Start accepts. Automaton has 14085 states and 39895 transitions. Word has length 143 [2022-02-15 12:27:23,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 12:27:23,871 INFO L470 AbstractCegarLoop]: Abstraction has 14085 states and 39895 transitions. [2022-02-15 12:27:23,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.0) internal successors, (165), 11 states have internal predecessors, (165), 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) [2022-02-15 12:27:23,871 INFO L276 IsEmpty]: Start isEmpty. Operand 14085 states and 39895 transitions. [2022-02-15 12:27:23,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-02-15 12:27:23,908 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 12:27:23,908 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 12:27:23,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-15 12:27:24,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 12:27:24,125 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 12:27:24,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 12:27:24,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1424037144, now seen corresponding path program 3 times [2022-02-15 12:27:24,125 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 12:27:24,126 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409603290] [2022-02-15 12:27:24,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 12:27:24,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 12:27:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 12:27:24,247 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-02-15 12:27:24,247 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 12:27:24,247 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409603290] [2022-02-15 12:27:24,248 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409603290] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 12:27:24,248 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2585338] [2022-02-15 12:27:24,248 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-15 12:27:24,248 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 12:27:24,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 12:27:24,249 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 12:27:24,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-15 12:27:24,504 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-02-15 12:27:24,505 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-15 12:27:24,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-15 12:27:24,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 12:27:24,927 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-02-15 12:27:24,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 12:27:25,203 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-02-15 12:27:25,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2585338] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-15 12:27:25,203 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-15 12:27:25,204 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2022-02-15 12:27:25,204 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802102643] [2022-02-15 12:27:25,204 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-15 12:27:25,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-15 12:27:25,205 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 12:27:25,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-15 12:27:25,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-02-15 12:27:25,205 INFO L87 Difference]: Start difference. First operand 14085 states and 39895 transitions. Second operand has 11 states, 11 states have (on average 14.636363636363637) internal successors, (161), 11 states have internal predecessors, (161), 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) [2022-02-15 12:27:25,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 12:27:25,347 INFO L93 Difference]: Finished difference Result 18033 states and 51195 transitions. [2022-02-15 12:27:25,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-15 12:27:25,348 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 14.636363636363637) internal successors, (161), 11 states have internal predecessors, (161), 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 167 [2022-02-15 12:27:25,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 12:27:25,390 INFO L225 Difference]: With dead ends: 18033 [2022-02-15 12:27:25,390 INFO L226 Difference]: Without dead ends: 18033 [2022-02-15 12:27:25,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 331 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2022-02-15 12:27:25,391 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 844 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 12:27:25,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [844 Valid, 748 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 12:27:25,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18033 states. [2022-02-15 12:27:25,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18033 to 18033. [2022-02-15 12:27:25,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18033 states, 18032 states have (on average 2.83911934338953) internal successors, (51195), 18032 states have internal predecessors, (51195), 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) [2022-02-15 12:27:25,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18033 states to 18033 states and 51195 transitions. [2022-02-15 12:27:25,918 INFO L78 Accepts]: Start accepts. Automaton has 18033 states and 51195 transitions. Word has length 167 [2022-02-15 12:27:25,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 12:27:25,919 INFO L470 AbstractCegarLoop]: Abstraction has 18033 states and 51195 transitions. [2022-02-15 12:27:25,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 14.636363636363637) internal successors, (161), 11 states have internal predecessors, (161), 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) [2022-02-15 12:27:25,919 INFO L276 IsEmpty]: Start isEmpty. Operand 18033 states and 51195 transitions. [2022-02-15 12:27:25,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-02-15 12:27:25,965 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 12:27:25,966 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 12:27:25,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-15 12:27:26,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 12:27:26,180 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 12:27:26,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 12:27:26,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1599430518, now seen corresponding path program 4 times [2022-02-15 12:27:26,181 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 12:27:26,181 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041740601] [2022-02-15 12:27:26,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 12:27:26,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 12:27:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 12:27:26,371 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 73 proven. 4 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-02-15 12:27:26,371 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 12:27:26,371 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041740601] [2022-02-15 12:27:26,371 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041740601] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 12:27:26,371 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864441228] [2022-02-15 12:27:26,371 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-15 12:27:26,371 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 12:27:26,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 12:27:26,373 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 12:27:26,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-15 12:27:26,499 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-15 12:27:26,499 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-15 12:27:26,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 11 conjunts are in the unsatisfiable core [2022-02-15 12:27:26,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 12:27:26,821 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 73 proven. 4 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-02-15 12:27:26,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 12:27:27,140 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 73 proven. 4 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-02-15 12:27:27,140 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864441228] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-15 12:27:27,140 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-15 12:27:27,141 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2022-02-15 12:27:27,141 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782468828] [2022-02-15 12:27:27,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-15 12:27:27,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 12:27:27,141 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 12:27:27,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 12:27:27,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 12:27:27,142 INFO L87 Difference]: Start difference. First operand 18033 states and 51195 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 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) [2022-02-15 12:27:27,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 12:27:27,255 INFO L93 Difference]: Finished difference Result 7284 states and 19726 transitions. [2022-02-15 12:27:27,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-15 12:27:27,255 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 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 178 [2022-02-15 12:27:27,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 12:27:27,271 INFO L225 Difference]: With dead ends: 7284 [2022-02-15 12:27:27,271 INFO L226 Difference]: Without dead ends: 7074 [2022-02-15 12:27:27,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 353 SyntacticMatches, 5 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-02-15 12:27:27,272 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 260 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 12:27:27,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 721 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 12:27:27,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7074 states. [2022-02-15 12:27:27,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7074 to 6706. [2022-02-15 12:27:27,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6706 states, 6705 states have (on average 2.709917971662938) internal successors, (18170), 6705 states have internal predecessors, (18170), 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) [2022-02-15 12:27:27,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6706 states to 6706 states and 18170 transitions. [2022-02-15 12:27:27,445 INFO L78 Accepts]: Start accepts. Automaton has 6706 states and 18170 transitions. Word has length 178 [2022-02-15 12:27:27,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 12:27:27,445 INFO L470 AbstractCegarLoop]: Abstraction has 6706 states and 18170 transitions. [2022-02-15 12:27:27,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 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) [2022-02-15 12:27:27,445 INFO L276 IsEmpty]: Start isEmpty. Operand 6706 states and 18170 transitions. [2022-02-15 12:27:27,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-02-15 12:27:27,458 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 12:27:27,458 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 12:27:27,484 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-02-15 12:27:27,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 12:27:27,677 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 12:27:27,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 12:27:27,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1073639138, now seen corresponding path program 5 times [2022-02-15 12:27:27,678 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 12:27:27,678 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483161340] [2022-02-15 12:27:27,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 12:27:27,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 12:27:27,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 12:27:27,726 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-02-15 12:27:27,726 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 12:27:27,726 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483161340] [2022-02-15 12:27:27,726 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483161340] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 12:27:27,727 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 12:27:27,727 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-15 12:27:27,727 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436794215] [2022-02-15 12:27:27,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 12:27:27,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-15 12:27:27,727 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 12:27:27,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-15 12:27:27,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-15 12:27:27,728 INFO L87 Difference]: Start difference. First operand 6706 states and 18170 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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) [2022-02-15 12:27:27,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 12:27:27,766 INFO L93 Difference]: Finished difference Result 4499 states and 11400 transitions. [2022-02-15 12:27:27,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 12:27:27,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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 178 [2022-02-15 12:27:27,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 12:27:27,776 INFO L225 Difference]: With dead ends: 4499 [2022-02-15 12:27:27,776 INFO L226 Difference]: Without dead ends: 4499 [2022-02-15 12:27:27,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-15 12:27:27,777 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 46 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 12:27:27,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 221 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 12:27:27,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4499 states. [2022-02-15 12:27:27,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4499 to 4499. [2022-02-15 12:27:27,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4499 states, 4498 states have (on average 2.534459759893286) internal successors, (11400), 4498 states have internal predecessors, (11400), 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) [2022-02-15 12:27:27,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4499 states to 4499 states and 11400 transitions. [2022-02-15 12:27:27,852 INFO L78 Accepts]: Start accepts. Automaton has 4499 states and 11400 transitions. Word has length 178 [2022-02-15 12:27:27,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 12:27:27,852 INFO L470 AbstractCegarLoop]: Abstraction has 4499 states and 11400 transitions. [2022-02-15 12:27:27,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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) [2022-02-15 12:27:27,853 INFO L276 IsEmpty]: Start isEmpty. Operand 4499 states and 11400 transitions. [2022-02-15 12:27:27,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-02-15 12:27:27,861 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 12:27:27,861 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 12:27:27,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-15 12:27:27,861 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-15 12:27:27,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 12:27:27,862 INFO L85 PathProgramCache]: Analyzing trace with hash -2138592474, now seen corresponding path program 6 times [2022-02-15 12:27:27,862 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 12:27:27,862 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295714629] [2022-02-15 12:27:27,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 12:27:27,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 12:27:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 12:27:28,346 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 12:27:28,346 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 12:27:28,347 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295714629] [2022-02-15 12:27:28,347 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295714629] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 12:27:28,347 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820939459] [2022-02-15 12:27:28,347 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-15 12:27:28,347 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 12:27:28,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 12:27:28,348 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 12:27:28,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-15 12:27:28,655 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2022-02-15 12:27:28,655 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-15 12:27:28,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 27 conjunts are in the unsatisfiable core [2022-02-15 12:27:28,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 12:27:29,702 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 9 proven. 137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 12:27:29,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 12:27:31,760 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 12:27:34,733 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 12:27:34,734 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [820939459] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-15 12:27:34,737 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-15 12:27:34,737 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 17] total 43 [2022-02-15 12:27:34,737 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375972339] [2022-02-15 12:27:34,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-15 12:27:34,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-02-15 12:27:34,738 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 12:27:34,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-02-15 12:27:34,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=1632, Unknown=0, NotChecked=0, Total=1806 [2022-02-15 12:27:34,740 INFO L87 Difference]: Start difference. First operand 4499 states and 11400 transitions. Second operand has 43 states, 43 states have (on average 9.13953488372093) internal successors, (393), 43 states have internal predecessors, (393), 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) [2022-02-15 12:27:35,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 12:27:35,694 INFO L93 Difference]: Finished difference Result 4593 states and 11555 transitions. [2022-02-15 12:27:35,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-15 12:27:35,695 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 9.13953488372093) internal successors, (393), 43 states have internal predecessors, (393), 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 178 [2022-02-15 12:27:35,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 12:27:35,696 INFO L225 Difference]: With dead ends: 4593 [2022-02-15 12:27:35,696 INFO L226 Difference]: Without dead ends: 0 [2022-02-15 12:27:35,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 329 SyntacticMatches, 3 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 525 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=353, Invalid=2839, Unknown=0, NotChecked=0, Total=3192 [2022-02-15 12:27:35,697 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 2279 mSDsluCounter, 7345 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2279 SdHoareTripleChecker+Valid, 7576 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 182 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 12:27:35,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2279 Valid, 7576 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 426 Invalid, 0 Unknown, 182 Unchecked, 0.3s Time] [2022-02-15 12:27:35,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-15 12:27:35,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-15 12:27:35,698 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) [2022-02-15 12:27:35,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-15 12:27:35,698 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 178 [2022-02-15 12:27:35,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 12:27:35,699 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-15 12:27:35,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 9.13953488372093) internal successors, (393), 43 states have internal predecessors, (393), 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) [2022-02-15 12:27:35,699 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-15 12:27:35,699 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-15 12:27:35,701 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-02-15 12:27:35,702 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-15 12:27:35,702 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-15 12:27:35,723 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-02-15 12:27:35,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 12:27:35,922 INFO L732 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1] [2022-02-15 12:27:35,923 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-15 12:27:35,923 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-15 12:27:35,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 12:27:35 BasicIcfg [2022-02-15 12:27:35,925 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-15 12:27:35,926 INFO L158 Benchmark]: Toolchain (without parser) took 17705.48ms. Allocated memory was 194.0MB in the beginning and 915.4MB in the end (delta: 721.4MB). Free memory was 135.9MB in the beginning and 266.1MB in the end (delta: -130.2MB). Peak memory consumption was 592.4MB. Max. memory is 8.0GB. [2022-02-15 12:27:35,926 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 194.0MB. Free memory is still 154.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-15 12:27:35,926 INFO L158 Benchmark]: CACSL2BoogieTranslator took 457.96ms. Allocated memory was 194.0MB in the beginning and 250.6MB in the end (delta: 56.6MB). Free memory was 135.8MB in the beginning and 206.5MB in the end (delta: -70.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-02-15 12:27:35,926 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.88ms. Allocated memory is still 250.6MB. Free memory was 206.5MB in the beginning and 204.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-15 12:27:35,927 INFO L158 Benchmark]: Boogie Preprocessor took 23.89ms. Allocated memory is still 250.6MB. Free memory was 204.4MB in the beginning and 202.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-15 12:27:35,927 INFO L158 Benchmark]: RCFGBuilder took 437.72ms. Allocated memory is still 250.6MB. Free memory was 202.9MB in the beginning and 187.7MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-02-15 12:27:35,927 INFO L158 Benchmark]: TraceAbstraction took 16736.28ms. Allocated memory was 250.6MB in the beginning and 915.4MB in the end (delta: 664.8MB). Free memory was 187.1MB in the beginning and 266.1MB in the end (delta: -79.0MB). Peak memory consumption was 586.8MB. Max. memory is 8.0GB. [2022-02-15 12:27:35,928 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 194.0MB. Free memory is still 154.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 457.96ms. Allocated memory was 194.0MB in the beginning and 250.6MB in the end (delta: 56.6MB). Free memory was 135.8MB in the beginning and 206.5MB in the end (delta: -70.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.88ms. Allocated memory is still 250.6MB. Free memory was 206.5MB in the beginning and 204.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.89ms. Allocated memory is still 250.6MB. Free memory was 204.4MB in the beginning and 202.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 437.72ms. Allocated memory is still 250.6MB. Free memory was 202.9MB in the beginning and 187.7MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 16736.28ms. Allocated memory was 250.6MB in the beginning and 915.4MB in the end (delta: 664.8MB). Free memory was 187.1MB in the beginning and 266.1MB in the end (delta: -79.0MB). Peak memory consumption was 586.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 919]: 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 5 procedures, 171 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 16.6s, OverallIterations: 9, TraceHistogramMax: 4, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.2s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5062 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5062 mSDsluCounter, 12082 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 182 IncrementalHoareTripleChecker+Unchecked, 10672 mSDsCounter, 108 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 918 IncrementalHoareTripleChecker+Invalid, 1208 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 108 mSolverCounterUnsat, 1683 mSDtfsCounter, 918 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1698 GetRequests, 1547 SyntacticMatches, 10 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1214 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18033occurred in iteration=6, InterpolantAutomatonStates: 106, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 9 MinimizatonAttempts, 5262 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 9.3s InterpolantComputationTime, 1997 NumberOfCodeBlocks, 1975 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 2753 ConstructedInterpolants, 81 QuantifiedInterpolants, 13493 SizeOfPredicates, 26 NumberOfNonLiveVariables, 1938 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 19 InterpolantComputations, 4 PerfectInterpolantSequences, 880/1515 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! [2022-02-15 12:27:35,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...