/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-14 13:24:28,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-14 13:24:28,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-14 13:24:28,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-14 13:24:28,696 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-14 13:24:28,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-14 13:24:28,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-14 13:24:28,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-14 13:24:28,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-14 13:24:28,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-14 13:24:28,705 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-14 13:24:28,706 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-14 13:24:28,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-14 13:24:28,708 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-14 13:24:28,709 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-14 13:24:28,710 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-14 13:24:28,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-14 13:24:28,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-14 13:24:28,717 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-14 13:24:28,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-14 13:24:28,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-14 13:24:28,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-14 13:24:28,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-14 13:24:28,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-14 13:24:28,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-14 13:24:28,744 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-14 13:24:28,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-14 13:24:28,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-14 13:24:28,750 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-14 13:24:28,752 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-14 13:24:28,752 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-14 13:24:28,753 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-14 13:24:28,753 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-14 13:24:28,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-14 13:24:28,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-14 13:24:28,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-14 13:24:28,757 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-14 13:24:28,820 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-14 13:24:28,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-14 13:24:28,821 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-14 13:24:28,822 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-14 13:24:28,822 INFO L138 SettingsManager]: * Use SBE=true [2020-09-14 13:24:28,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-14 13:24:28,823 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-14 13:24:28,823 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-14 13:24:28,823 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-14 13:24:28,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-14 13:24:28,824 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-14 13:24:28,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-14 13:24:28,824 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-14 13:24:28,824 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-14 13:24:28,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-14 13:24:28,825 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-14 13:24:28,826 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-14 13:24:28,826 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-14 13:24:28,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-14 13:24:28,827 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-14 13:24:28,827 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-14 13:24:28,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-14 13:24:28,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-14 13:24:28,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-14 13:24:28,828 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-14 13:24:28,828 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-14 13:24:28,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-14 13:24:28,828 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-14 13:24:28,829 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-14 13:24:28,829 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-14 13:24:29,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-14 13:24:29,327 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-14 13:24:29,331 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-14 13:24:29,333 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-14 13:24:29,334 INFO L275 PluginConnector]: CDTParser initialized [2020-09-14 13:24:29,335 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i [2020-09-14 13:24:29,413 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4ecdc7c3c/9eee50427cdc434799bffee61d9a13b8/FLAG21ef9d123 [2020-09-14 13:24:30,059 INFO L306 CDTParser]: Found 1 translation units. [2020-09-14 13:24:30,060 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i [2020-09-14 13:24:30,094 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4ecdc7c3c/9eee50427cdc434799bffee61d9a13b8/FLAG21ef9d123 [2020-09-14 13:24:30,290 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4ecdc7c3c/9eee50427cdc434799bffee61d9a13b8 [2020-09-14 13:24:30,305 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-14 13:24:30,313 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-14 13:24:30,317 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-14 13:24:30,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-14 13:24:30,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-14 13:24:30,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 01:24:30" (1/1) ... [2020-09-14 13:24:30,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b6c3930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 01:24:30, skipping insertion in model container [2020-09-14 13:24:30,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 01:24:30" (1/1) ... [2020-09-14 13:24:30,339 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-14 13:24:30,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-14 13:24:30,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-14 13:24:30,974 INFO L203 MainTranslator]: Completed pre-run [2020-09-14 13:24:31,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-14 13:24:31,157 INFO L208 MainTranslator]: Completed translation [2020-09-14 13:24:31,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 01:24:31 WrapperNode [2020-09-14 13:24:31,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-14 13:24:31,159 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-14 13:24:31,159 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-14 13:24:31,159 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-14 13:24:31,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 01:24:31" (1/1) ... [2020-09-14 13:24:31,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 01:24:31" (1/1) ... [2020-09-14 13:24:31,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-14 13:24:31,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-14 13:24:31,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-14 13:24:31,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-14 13:24:31,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 01:24:31" (1/1) ... [2020-09-14 13:24:31,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 01:24:31" (1/1) ... [2020-09-14 13:24:31,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 01:24:31" (1/1) ... [2020-09-14 13:24:31,234 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 01:24:31" (1/1) ... [2020-09-14 13:24:31,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 01:24:31" (1/1) ... [2020-09-14 13:24:31,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 01:24:31" (1/1) ... [2020-09-14 13:24:31,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 01:24:31" (1/1) ... [2020-09-14 13:24:31,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-14 13:24:31,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-14 13:24:31,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-14 13:24:31,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-14 13:24:31,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 01:24:31" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-14 13:24:31,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-14 13:24:31,339 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-09-14 13:24:31,339 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-09-14 13:24:31,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-14 13:24:31,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-14 13:24:31,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-14 13:24:31,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-14 13:24:31,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-14 13:24:31,342 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-14 13:24:32,026 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-14 13:24:32,026 INFO L295 CfgBuilder]: Removed 9 assume(true) statements. [2020-09-14 13:24:32,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 01:24:32 BoogieIcfgContainer [2020-09-14 13:24:32,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-14 13:24:32,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-14 13:24:32,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-14 13:24:32,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-14 13:24:32,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 01:24:30" (1/3) ... [2020-09-14 13:24:32,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1946e2e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 01:24:32, skipping insertion in model container [2020-09-14 13:24:32,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 01:24:31" (2/3) ... [2020-09-14 13:24:32,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1946e2e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 01:24:32, skipping insertion in model container [2020-09-14 13:24:32,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 01:24:32" (3/3) ... [2020-09-14 13:24:32,042 INFO L109 eAbstractionObserver]: Analyzing ICFG 48_ticket_lock_low_contention_vs.i [2020-09-14 13:24:32,054 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-14 13:24:32,055 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-14 13:24:32,065 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-09-14 13:24:32,067 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-14 13:24:32,094 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,095 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,095 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,095 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,096 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,096 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,096 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,096 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,096 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,097 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,097 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,097 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,097 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,097 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,098 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,098 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,098 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,098 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,099 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,099 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,099 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,100 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,100 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,100 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,100 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,101 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,101 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,101 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,101 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,106 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,106 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,107 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,107 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,107 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,107 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,108 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,108 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,108 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,109 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,109 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,109 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,109 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,110 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:32,138 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-14 13:24:32,166 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-14 13:24:32,166 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-14 13:24:32,167 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-14 13:24:32,167 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-14 13:24:32,167 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-14 13:24:32,167 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-14 13:24:32,167 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-14 13:24:32,167 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-14 13:24:32,186 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 72 transitions, 149 flow [2020-09-14 13:24:32,189 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 68 places, 72 transitions, 149 flow [2020-09-14 13:24:32,244 INFO L129 PetriNetUnfolder]: 11/110 cut-off events. [2020-09-14 13:24:32,245 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-14 13:24:32,252 INFO L80 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 110 events. 11/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 253 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 61. Up to 4 conditions per place. [2020-09-14 13:24:32,256 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 68 places, 72 transitions, 149 flow [2020-09-14 13:24:32,282 INFO L129 PetriNetUnfolder]: 11/110 cut-off events. [2020-09-14 13:24:32,282 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-14 13:24:32,283 INFO L80 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 110 events. 11/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 253 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 61. Up to 4 conditions per place. [2020-09-14 13:24:32,286 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1760 [2020-09-14 13:24:32,288 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-14 13:24:33,662 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4440 [2020-09-14 13:24:33,663 INFO L214 etLargeBlockEncoding]: Total number of compositions: 50 [2020-09-14 13:24:33,667 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 34 transitions, 73 flow [2020-09-14 13:24:33,688 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 207 states. [2020-09-14 13:24:33,690 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-09-14 13:24:33,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-09-14 13:24:33,699 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 13:24:33,700 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-09-14 13:24:33,700 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 13:24:33,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 13:24:33,708 INFO L82 PathProgramCache]: Analyzing trace with hash 11110992, now seen corresponding path program 1 times [2020-09-14 13:24:33,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 13:24:33,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466649758] [2020-09-14 13:24:33,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 13:24:33,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 13:24:33,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 13:24:33,881 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466649758] [2020-09-14 13:24:33,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 13:24:33,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-14 13:24:33,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625014258] [2020-09-14 13:24:33,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-14 13:24:33,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 13:24:33,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-14 13:24:33,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-14 13:24:33,909 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 2 states. [2020-09-14 13:24:33,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 13:24:33,936 INFO L93 Difference]: Finished difference Result 207 states and 400 transitions. [2020-09-14 13:24:33,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-14 13:24:33,938 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2020-09-14 13:24:33,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 13:24:33,954 INFO L225 Difference]: With dead ends: 207 [2020-09-14 13:24:33,954 INFO L226 Difference]: Without dead ends: 171 [2020-09-14 13:24:33,956 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-14 13:24:33,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-09-14 13:24:34,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2020-09-14 13:24:34,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-09-14 13:24:34,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 334 transitions. [2020-09-14 13:24:34,022 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 334 transitions. Word has length 4 [2020-09-14 13:24:34,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 13:24:34,023 INFO L479 AbstractCegarLoop]: Abstraction has 171 states and 334 transitions. [2020-09-14 13:24:34,023 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-14 13:24:34,023 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 334 transitions. [2020-09-14 13:24:34,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-09-14 13:24:34,024 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 13:24:34,024 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-09-14 13:24:34,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-14 13:24:34,025 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 13:24:34,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 13:24:34,026 INFO L82 PathProgramCache]: Analyzing trace with hash 2074270381, now seen corresponding path program 1 times [2020-09-14 13:24:34,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 13:24:34,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410489557] [2020-09-14 13:24:34,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 13:24:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-14 13:24:34,055 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-14 13:24:34,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-14 13:24:34,071 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-14 13:24:34,098 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-14 13:24:34,098 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-14 13:24:34,100 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-14 13:24:34,101 WARN L363 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-09-14 13:24:34,101 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-09-14 13:24:34,112 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,112 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,112 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,112 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,113 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,113 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,113 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,113 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,113 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,114 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,114 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,114 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,114 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,114 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,115 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,115 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,115 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,115 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,116 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,116 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,116 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,116 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,116 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,117 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,117 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,117 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,117 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,117 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,118 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,118 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,118 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,119 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,119 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,120 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,120 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,120 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,120 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,120 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,120 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,121 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,121 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,121 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,121 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,122 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,122 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,122 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,122 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,123 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,123 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,123 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,123 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,124 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,124 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,124 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,124 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,125 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,125 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,125 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,125 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,126 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,126 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,126 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,126 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,126 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,127 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,127 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,127 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,127 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,128 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,133 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,134 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,134 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,134 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,134 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,135 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,135 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,135 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,135 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,135 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,136 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,136 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,136 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,136 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:34,139 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-14 13:24:34,139 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-14 13:24:34,139 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-14 13:24:34,140 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-14 13:24:34,140 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-14 13:24:34,140 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-14 13:24:34,140 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-14 13:24:34,140 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-14 13:24:34,140 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-14 13:24:34,143 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 95 transitions, 202 flow [2020-09-14 13:24:34,143 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 90 places, 95 transitions, 202 flow [2020-09-14 13:24:34,173 INFO L129 PetriNetUnfolder]: 18/172 cut-off events. [2020-09-14 13:24:34,174 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-09-14 13:24:34,176 INFO L80 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 172 events. 18/172 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 554 event pairs, 0 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 111. Up to 6 conditions per place. [2020-09-14 13:24:34,183 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 90 places, 95 transitions, 202 flow [2020-09-14 13:24:34,207 INFO L129 PetriNetUnfolder]: 18/172 cut-off events. [2020-09-14 13:24:34,208 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-09-14 13:24:34,210 INFO L80 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 172 events. 18/172 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 554 event pairs, 0 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 111. Up to 6 conditions per place. [2020-09-14 13:24:34,216 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 4532 [2020-09-14 13:24:34,217 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-14 13:24:35,764 INFO L206 etLargeBlockEncoding]: Checked pairs total: 12318 [2020-09-14 13:24:35,765 INFO L214 etLargeBlockEncoding]: Total number of compositions: 60 [2020-09-14 13:24:35,765 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 48 transitions, 108 flow [2020-09-14 13:24:35,882 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2499 states. [2020-09-14 13:24:35,882 INFO L276 IsEmpty]: Start isEmpty. Operand 2499 states. [2020-09-14 13:24:35,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-09-14 13:24:35,883 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 13:24:35,883 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-09-14 13:24:35,884 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 13:24:35,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 13:24:35,884 INFO L82 PathProgramCache]: Analyzing trace with hash 16651396, now seen corresponding path program 1 times [2020-09-14 13:24:35,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 13:24:35,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769109760] [2020-09-14 13:24:35,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 13:24:35,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 13:24:35,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 13:24:35,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769109760] [2020-09-14 13:24:35,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 13:24:35,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-14 13:24:35,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478481610] [2020-09-14 13:24:35,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-14 13:24:35,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 13:24:35,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-14 13:24:35,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-14 13:24:35,916 INFO L87 Difference]: Start difference. First operand 2499 states. Second operand 2 states. [2020-09-14 13:24:35,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 13:24:35,969 INFO L93 Difference]: Finished difference Result 2499 states and 7300 transitions. [2020-09-14 13:24:35,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-14 13:24:35,969 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2020-09-14 13:24:35,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 13:24:35,995 INFO L225 Difference]: With dead ends: 2499 [2020-09-14 13:24:35,996 INFO L226 Difference]: Without dead ends: 2313 [2020-09-14 13:24:35,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-14 13:24:36,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2313 states. [2020-09-14 13:24:36,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2313 to 2313. [2020-09-14 13:24:36,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2313 states. [2020-09-14 13:24:36,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2313 states to 2313 states and 6784 transitions. [2020-09-14 13:24:36,121 INFO L78 Accepts]: Start accepts. Automaton has 2313 states and 6784 transitions. Word has length 4 [2020-09-14 13:24:36,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 13:24:36,122 INFO L479 AbstractCegarLoop]: Abstraction has 2313 states and 6784 transitions. [2020-09-14 13:24:36,122 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-14 13:24:36,122 INFO L276 IsEmpty]: Start isEmpty. Operand 2313 states and 6784 transitions. [2020-09-14 13:24:36,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-09-14 13:24:36,123 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 13:24:36,123 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-09-14 13:24:36,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-14 13:24:36,123 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 13:24:36,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 13:24:36,124 INFO L82 PathProgramCache]: Analyzing trace with hash 2039104266, now seen corresponding path program 1 times [2020-09-14 13:24:36,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 13:24:36,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395280031] [2020-09-14 13:24:36,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 13:24:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 13:24:36,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 13:24:36,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395280031] [2020-09-14 13:24:36,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 13:24:36,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-14 13:24:36,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771133788] [2020-09-14 13:24:36,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-14 13:24:36,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 13:24:36,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-14 13:24:36,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 13:24:36,243 INFO L87 Difference]: Start difference. First operand 2313 states and 6784 transitions. Second operand 3 states. [2020-09-14 13:24:36,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 13:24:36,328 INFO L93 Difference]: Finished difference Result 2545 states and 7224 transitions. [2020-09-14 13:24:36,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-14 13:24:36,328 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-09-14 13:24:36,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 13:24:36,344 INFO L225 Difference]: With dead ends: 2545 [2020-09-14 13:24:36,344 INFO L226 Difference]: Without dead ends: 2170 [2020-09-14 13:24:36,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 13:24:36,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2170 states. [2020-09-14 13:24:36,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2170 to 1990. [2020-09-14 13:24:36,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1990 states. [2020-09-14 13:24:36,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 5668 transitions. [2020-09-14 13:24:36,412 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 5668 transitions. Word has length 7 [2020-09-14 13:24:36,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 13:24:36,412 INFO L479 AbstractCegarLoop]: Abstraction has 1990 states and 5668 transitions. [2020-09-14 13:24:36,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-14 13:24:36,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 5668 transitions. [2020-09-14 13:24:36,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-14 13:24:36,414 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 13:24:36,414 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2020-09-14 13:24:36,414 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-14 13:24:36,414 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 13:24:36,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 13:24:36,415 INFO L82 PathProgramCache]: Analyzing trace with hash 682972450, now seen corresponding path program 1 times [2020-09-14 13:24:36,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 13:24:36,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789711569] [2020-09-14 13:24:36,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 13:24:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-14 13:24:36,436 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-14 13:24:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-14 13:24:36,458 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-14 13:24:36,471 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-14 13:24:36,471 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-14 13:24:36,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-14 13:24:36,474 WARN L363 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-09-14 13:24:36,476 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-09-14 13:24:36,489 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,490 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,490 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,490 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,490 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,490 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,491 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,491 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,492 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,492 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,492 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,492 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,492 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,492 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,493 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,493 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,493 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,493 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,493 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,494 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,494 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,494 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,494 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,494 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,495 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,495 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,495 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,495 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,496 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,497 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,497 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,497 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,498 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,498 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,499 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,500 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,500 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,500 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,503 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,503 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,503 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,503 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,503 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,506 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,506 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,506 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,506 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,506 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,507 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,507 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,507 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,507 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,507 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,508 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,508 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,508 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,508 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,508 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,508 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,509 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,509 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,509 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,509 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,509 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,509 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,510 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,510 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,510 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,510 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,510 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,510 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,510 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,511 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,511 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,511 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,511 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,511 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,512 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,512 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,512 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,512 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,512 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,512 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,513 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,513 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,513 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,513 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,514 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,514 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,514 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,514 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,514 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,515 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,515 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,515 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,515 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,515 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,515 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,516 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,516 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,516 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,520 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,520 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,521 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,521 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,521 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,521 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,521 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,521 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,522 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,522 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,522 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,522 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,522 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,523 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,528 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,529 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,529 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,529 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,529 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,529 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,530 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,530 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,530 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,530 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,530 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,530 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,531 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,531 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:36,533 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-09-14 13:24:36,533 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-14 13:24:36,533 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-14 13:24:36,534 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-14 13:24:36,534 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-14 13:24:36,534 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-14 13:24:36,534 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-14 13:24:36,534 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-14 13:24:36,534 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-14 13:24:36,537 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 112 places, 118 transitions, 257 flow [2020-09-14 13:24:36,538 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 112 places, 118 transitions, 257 flow [2020-09-14 13:24:36,578 INFO L129 PetriNetUnfolder]: 25/234 cut-off events. [2020-09-14 13:24:36,578 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-09-14 13:24:36,582 INFO L80 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 234 events. 25/234 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 855 event pairs, 0 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 176. Up to 8 conditions per place. [2020-09-14 13:24:36,594 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 112 places, 118 transitions, 257 flow [2020-09-14 13:24:36,627 INFO L129 PetriNetUnfolder]: 25/234 cut-off events. [2020-09-14 13:24:36,627 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-09-14 13:24:36,629 INFO L80 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 234 events. 25/234 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 855 event pairs, 0 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 176. Up to 8 conditions per place. [2020-09-14 13:24:36,640 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 8316 [2020-09-14 13:24:36,640 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-14 13:24:38,631 INFO L206 etLargeBlockEncoding]: Checked pairs total: 25832 [2020-09-14 13:24:38,631 INFO L214 etLargeBlockEncoding]: Total number of compositions: 71 [2020-09-14 13:24:38,632 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 59 places, 62 transitions, 145 flow [2020-09-14 13:24:41,967 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 30003 states. [2020-09-14 13:24:41,967 INFO L276 IsEmpty]: Start isEmpty. Operand 30003 states. [2020-09-14 13:24:41,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-09-14 13:24:41,968 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 13:24:41,968 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-09-14 13:24:41,968 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 13:24:41,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 13:24:41,969 INFO L82 PathProgramCache]: Analyzing trace with hash 23236185, now seen corresponding path program 1 times [2020-09-14 13:24:41,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 13:24:41,969 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431584709] [2020-09-14 13:24:41,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 13:24:41,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 13:24:41,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 13:24:41,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431584709] [2020-09-14 13:24:41,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 13:24:41,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-14 13:24:41,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829171797] [2020-09-14 13:24:41,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-14 13:24:41,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 13:24:41,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-14 13:24:41,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-14 13:24:41,992 INFO L87 Difference]: Start difference. First operand 30003 states. Second operand 2 states. [2020-09-14 13:24:42,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 13:24:42,303 INFO L93 Difference]: Finished difference Result 30003 states and 117604 transitions. [2020-09-14 13:24:42,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-14 13:24:42,303 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2020-09-14 13:24:42,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 13:24:42,520 INFO L225 Difference]: With dead ends: 30003 [2020-09-14 13:24:42,520 INFO L226 Difference]: Without dead ends: 29067 [2020-09-14 13:24:42,521 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-14 13:24:44,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29067 states. [2020-09-14 13:24:44,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29067 to 29067. [2020-09-14 13:24:44,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29067 states. [2020-09-14 13:24:44,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29067 states to 29067 states and 114088 transitions. [2020-09-14 13:24:44,998 INFO L78 Accepts]: Start accepts. Automaton has 29067 states and 114088 transitions. Word has length 4 [2020-09-14 13:24:44,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 13:24:44,998 INFO L479 AbstractCegarLoop]: Abstraction has 29067 states and 114088 transitions. [2020-09-14 13:24:44,998 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-14 13:24:44,998 INFO L276 IsEmpty]: Start isEmpty. Operand 29067 states and 114088 transitions. [2020-09-14 13:24:44,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-09-14 13:24:44,999 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 13:24:44,999 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-09-14 13:24:44,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-14 13:24:45,000 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 13:24:45,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 13:24:45,000 INFO L82 PathProgramCache]: Analyzing trace with hash 723439733, now seen corresponding path program 1 times [2020-09-14 13:24:45,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 13:24:45,001 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311731161] [2020-09-14 13:24:45,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 13:24:45,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 13:24:45,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 13:24:45,057 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311731161] [2020-09-14 13:24:45,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 13:24:45,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-14 13:24:45,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135489737] [2020-09-14 13:24:45,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-14 13:24:45,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 13:24:45,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-14 13:24:45,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 13:24:45,059 INFO L87 Difference]: Start difference. First operand 29067 states and 114088 transitions. Second operand 3 states. [2020-09-14 13:24:45,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 13:24:45,323 INFO L93 Difference]: Finished difference Result 36627 states and 139297 transitions. [2020-09-14 13:24:45,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-14 13:24:45,324 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-09-14 13:24:45,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 13:24:46,988 INFO L225 Difference]: With dead ends: 36627 [2020-09-14 13:24:46,989 INFO L226 Difference]: Without dead ends: 34492 [2020-09-14 13:24:46,989 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 13:24:47,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34492 states. [2020-09-14 13:24:48,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34492 to 30270. [2020-09-14 13:24:48,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30270 states. [2020-09-14 13:24:48,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30270 states to 30270 states and 115972 transitions. [2020-09-14 13:24:48,299 INFO L78 Accepts]: Start accepts. Automaton has 30270 states and 115972 transitions. Word has length 7 [2020-09-14 13:24:48,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 13:24:48,300 INFO L479 AbstractCegarLoop]: Abstraction has 30270 states and 115972 transitions. [2020-09-14 13:24:48,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-14 13:24:48,300 INFO L276 IsEmpty]: Start isEmpty. Operand 30270 states and 115972 transitions. [2020-09-14 13:24:48,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-14 13:24:48,302 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 13:24:48,302 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2020-09-14 13:24:48,303 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-14 13:24:48,303 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 13:24:48,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 13:24:48,303 INFO L82 PathProgramCache]: Analyzing trace with hash 280318792, now seen corresponding path program 1 times [2020-09-14 13:24:48,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 13:24:48,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087674214] [2020-09-14 13:24:48,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 13:24:48,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-14 13:24:48,323 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-14 13:24:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-14 13:24:48,338 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-14 13:24:48,345 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-14 13:24:48,345 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-14 13:24:48,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-14 13:24:48,346 WARN L363 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-09-14 13:24:48,346 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-09-14 13:24:48,356 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,357 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,357 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,357 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,357 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,357 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,357 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,357 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,358 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,358 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,358 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,358 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,358 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,358 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,359 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,359 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,359 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,359 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,359 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,359 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,360 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,360 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,360 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,360 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,360 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,360 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,361 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,361 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,361 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,361 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,361 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,362 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,362 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,362 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,362 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,362 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,362 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,362 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,363 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,363 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,363 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,363 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,363 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,363 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,364 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,364 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,364 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,364 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,364 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,365 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,365 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,365 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,365 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,365 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,365 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,366 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,366 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,366 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,366 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,366 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,367 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,367 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,367 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,367 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,367 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,367 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,368 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,368 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,368 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,368 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,368 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,368 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,368 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,369 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,369 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,369 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,369 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,369 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,370 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,370 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,370 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,370 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,370 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,370 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,371 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,371 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,371 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,371 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,371 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,371 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,372 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,372 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,372 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,372 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,372 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,372 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,372 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,373 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,373 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,373 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,373 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,373 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,373 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,373 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,374 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,374 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,374 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,374 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,374 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,375 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,375 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,375 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,375 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,375 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,375 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,375 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,376 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,376 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,376 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,376 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,376 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,377 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,377 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,377 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,377 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,377 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,377 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,377 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,378 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,378 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,379 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,380 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,380 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,380 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,380 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,380 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,380 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,380 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,381 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,381 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,381 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,381 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,381 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,381 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,383 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,383 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,383 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,383 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,383 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,384 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,384 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,384 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,384 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,384 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,384 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,384 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,385 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,385 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,387 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,387 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,387 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,387 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,387 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,387 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,388 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,388 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,388 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,388 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,388 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,388 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,388 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,389 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:24:48,390 INFO L251 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-09-14 13:24:48,390 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-14 13:24:48,390 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-14 13:24:48,390 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-14 13:24:48,390 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-14 13:24:48,391 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-14 13:24:48,391 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-14 13:24:48,391 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-14 13:24:48,391 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-14 13:24:48,393 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 141 transitions, 314 flow [2020-09-14 13:24:48,393 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 134 places, 141 transitions, 314 flow [2020-09-14 13:24:48,425 INFO L129 PetriNetUnfolder]: 32/296 cut-off events. [2020-09-14 13:24:48,425 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-09-14 13:24:48,428 INFO L80 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 296 events. 32/296 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1163 event pairs, 0 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 242. Up to 10 conditions per place. [2020-09-14 13:24:48,445 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 134 places, 141 transitions, 314 flow [2020-09-14 13:24:48,475 INFO L129 PetriNetUnfolder]: 32/296 cut-off events. [2020-09-14 13:24:48,475 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-09-14 13:24:48,478 INFO L80 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 296 events. 32/296 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1163 event pairs, 0 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 242. Up to 10 conditions per place. [2020-09-14 13:24:48,488 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 13112 [2020-09-14 13:24:48,488 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-14 13:24:51,551 INFO L206 etLargeBlockEncoding]: Checked pairs total: 42427 [2020-09-14 13:24:51,551 INFO L214 etLargeBlockEncoding]: Total number of compositions: 93 [2020-09-14 13:24:51,551 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 73 places, 79 transitions, 190 flow [2020-09-14 13:30:15,385 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 360051 states. [2020-09-14 13:30:15,385 INFO L276 IsEmpty]: Start isEmpty. Operand 360051 states. [2020-09-14 13:30:15,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-09-14 13:30:15,385 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 13:30:15,386 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-09-14 13:30:15,386 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 13:30:15,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 13:30:15,386 INFO L82 PathProgramCache]: Analyzing trace with hash 30934499, now seen corresponding path program 1 times [2020-09-14 13:30:15,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 13:30:15,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913354558] [2020-09-14 13:30:15,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 13:30:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 13:30:15,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 13:30:15,405 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913354558] [2020-09-14 13:30:15,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 13:30:15,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-14 13:30:15,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422192321] [2020-09-14 13:30:15,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-14 13:30:15,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 13:30:15,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-14 13:30:15,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-14 13:30:15,407 INFO L87 Difference]: Start difference. First operand 360051 states. Second operand 2 states. [2020-09-14 13:30:27,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 13:30:27,281 INFO L93 Difference]: Finished difference Result 360051 states and 1771300 transitions. [2020-09-14 13:30:27,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-14 13:30:27,282 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2020-09-14 13:30:27,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 13:30:28,937 INFO L225 Difference]: With dead ends: 360051 [2020-09-14 13:30:28,937 INFO L226 Difference]: Without dead ends: 355365 [2020-09-14 13:30:28,938 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-14 13:31:02,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355365 states. [2020-09-14 13:31:20,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355365 to 355365. [2020-09-14 13:31:20,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355365 states. [2020-09-14 13:31:24,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355365 states to 355365 states and 1749034 transitions. [2020-09-14 13:31:24,579 INFO L78 Accepts]: Start accepts. Automaton has 355365 states and 1749034 transitions. Word has length 4 [2020-09-14 13:31:24,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 13:31:24,579 INFO L479 AbstractCegarLoop]: Abstraction has 355365 states and 1749034 transitions. [2020-09-14 13:31:24,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-14 13:31:24,580 INFO L276 IsEmpty]: Start isEmpty. Operand 355365 states and 1749034 transitions. [2020-09-14 13:31:24,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-09-14 13:31:24,580 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 13:31:24,580 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-09-14 13:31:24,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-14 13:31:24,581 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 13:31:24,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 13:31:24,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1851893521, now seen corresponding path program 1 times [2020-09-14 13:31:24,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 13:31:24,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338165316] [2020-09-14 13:31:24,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 13:31:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 13:31:24,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 13:31:24,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338165316] [2020-09-14 13:31:24,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 13:31:24,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-14 13:31:24,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974642718] [2020-09-14 13:31:24,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-14 13:31:24,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 13:31:24,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-14 13:31:24,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 13:31:24,633 INFO L87 Difference]: Start difference. First operand 355365 states and 1749034 transitions. Second operand 3 states. [2020-09-14 13:31:41,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 13:31:41,791 INFO L93 Difference]: Finished difference Result 497531 states and 2370614 transitions. [2020-09-14 13:31:41,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-14 13:31:41,791 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-09-14 13:31:41,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 13:31:57,320 INFO L225 Difference]: With dead ends: 497531 [2020-09-14 13:31:57,321 INFO L226 Difference]: Without dead ends: 486436 [2020-09-14 13:31:57,321 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 13:32:29,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486436 states. [2020-09-14 13:32:39,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486436 to 417618. [2020-09-14 13:32:39,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417618 states.