/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 21:14:23,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 21:14:23,183 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 21:14:23,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 21:14:23,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 21:14:23,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 21:14:23,227 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 21:14:23,229 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 21:14:23,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 21:14:23,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 21:14:23,234 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 21:14:23,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 21:14:23,236 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 21:14:23,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 21:14:23,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 21:14:23,241 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 21:14:23,242 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 21:14:23,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 21:14:23,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 21:14:23,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 21:14:23,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 21:14:23,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 21:14:23,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 21:14:23,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 21:14:23,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-20 21:14:23,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 21:14:23,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 21:14:23,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 21:14:23,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 21:14:23,282 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 21:14:23,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 21:14:23,287 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 21:14:23,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 21:14:23,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 21:14:23,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 21:14:23,289 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 21:14:23,291 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf [2021-01-20 21:14:23,345 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 21:14:23,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 21:14:23,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 21:14:23,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 21:14:23,351 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 21:14:23,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 21:14:23,351 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 21:14:23,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 21:14:23,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 21:14:23,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 21:14:23,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 21:14:23,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 21:14:23,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 21:14:23,354 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 21:14:23,354 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 21:14:23,355 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 21:14:23,355 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 21:14:23,355 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 21:14:23,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 21:14:23,355 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 21:14:23,356 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 21:14:23,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 21:14:23,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 21:14:23,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 21:14:23,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 21:14:23,357 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 21:14:23,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 21:14:23,357 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 21:14:23,357 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 21:14:23,358 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2021-01-20 21:14:23,358 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 21:14:23,358 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 21:14:23,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 21:14:23,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 21:14:23,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 21:14:23,789 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 21:14:23,789 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 21:14:23,791 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i [2021-01-20 21:14:23,888 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d2a665eb/8fb776bfa67d44088fd9383b75d68a8c/FLAG7fc2ab973 [2021-01-20 21:14:24,658 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 21:14:24,658 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i [2021-01-20 21:14:24,680 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d2a665eb/8fb776bfa67d44088fd9383b75d68a8c/FLAG7fc2ab973 [2021-01-20 21:14:24,870 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d2a665eb/8fb776bfa67d44088fd9383b75d68a8c [2021-01-20 21:14:24,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 21:14:24,875 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 21:14:24,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 21:14:24,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 21:14:24,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 21:14:24,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:14:24" (1/1) ... [2021-01-20 21:14:24,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bbe7e97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:14:24, skipping insertion in model container [2021-01-20 21:14:24,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:14:24" (1/1) ... [2021-01-20 21:14:24,898 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 21:14:24,966 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 21:14:25,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:14:25,506 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 21:14:25,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:14:25,756 INFO L208 MainTranslator]: Completed translation [2021-01-20 21:14:25,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:14:25 WrapperNode [2021-01-20 21:14:25,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 21:14:25,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 21:14:25,759 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 21:14:25,760 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 21:14:25,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:14:25" (1/1) ... [2021-01-20 21:14:25,803 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:14:25" (1/1) ... [2021-01-20 21:14:25,837 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 21:14:25,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 21:14:25,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 21:14:25,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 21:14:25,853 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:14:25" (1/1) ... [2021-01-20 21:14:25,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:14:25" (1/1) ... [2021-01-20 21:14:25,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:14:25" (1/1) ... [2021-01-20 21:14:25,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:14:25" (1/1) ... [2021-01-20 21:14:25,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:14:25" (1/1) ... [2021-01-20 21:14:25,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:14:25" (1/1) ... [2021-01-20 21:14:25,896 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:14:25" (1/1) ... [2021-01-20 21:14:25,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 21:14:25,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 21:14:25,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 21:14:25,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 21:14:25,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:14:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 21:14:25,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 21:14:25,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 21:14:25,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 21:14:25,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 21:14:25,989 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 21:14:25,990 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 21:14:25,990 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 21:14:25,991 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 21:14:25,991 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 21:14:25,992 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 21:14:25,992 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-01-20 21:14:25,992 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-01-20 21:14:25,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 21:14:25,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 21:14:25,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 21:14:25,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 21:14:25,996 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 21:14:26,525 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 21:14:26,525 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 21:14:26,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:14:26 BoogieIcfgContainer [2021-01-20 21:14:26,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 21:14:26,530 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 21:14:26,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 21:14:26,534 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 21:14:26,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 09:14:24" (1/3) ... [2021-01-20 21:14:26,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5627aaf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:14:26, skipping insertion in model container [2021-01-20 21:14:26,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:14:25" (2/3) ... [2021-01-20 21:14:26,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5627aaf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:14:26, skipping insertion in model container [2021-01-20 21:14:26,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:14:26" (3/3) ... [2021-01-20 21:14:26,538 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc.i [2021-01-20 21:14:26,554 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 21:14:26,554 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 21:14:26,558 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 21:14:26,559 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 21:14:26,590 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,590 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,591 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,591 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,591 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,591 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,591 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,592 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,592 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,592 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,592 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,593 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,593 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,593 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,593 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,594 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,594 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,594 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,594 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,594 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,595 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,595 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,595 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,595 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,596 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,596 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,596 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,596 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,597 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,597 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,597 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,597 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,598 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,598 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,598 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,598 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,599 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,599 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,599 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,599 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,600 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,600 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,600 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,600 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,600 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,601 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,601 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,601 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,603 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,604 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,604 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,604 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,611 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,611 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,611 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,611 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,614 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,614 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,614 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,614 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,616 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,617 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,617 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,617 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:14:26,619 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 21:14:26,632 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-01-20 21:14:26,656 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 21:14:26,656 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 21:14:26,657 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 21:14:26,657 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 21:14:26,657 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 21:14:26,657 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 21:14:26,657 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 21:14:26,657 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 21:14:26,670 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 99 places, 89 transitions, 198 flow [2021-01-20 21:14:38,191 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 54311 states, 54309 states have (on average 4.420317074518036) internal successors, (240063), 54310 states have internal predecessors, (240063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:14:38,602 INFO L276 IsEmpty]: Start isEmpty. Operand has 54311 states, 54309 states have (on average 4.420317074518036) internal successors, (240063), 54310 states have internal predecessors, (240063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:14:38,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-20 21:14:38,742 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:14:38,743 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:14:38,743 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:14:38,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:14:38,751 INFO L82 PathProgramCache]: Analyzing trace with hash -864945227, now seen corresponding path program 1 times [2021-01-20 21:14:38,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:14:38,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867930370] [2021-01-20 21:14:38,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:14:39,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:14:39,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:14:39,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867930370] [2021-01-20 21:14:39,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:14:39,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:14:39,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224248620] [2021-01-20 21:14:39,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:14:39,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:14:39,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:14:39,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:14:39,482 INFO L87 Difference]: Start difference. First operand has 54311 states, 54309 states have (on average 4.420317074518036) internal successors, (240063), 54310 states have internal predecessors, (240063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:14:41,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:14:41,466 INFO L93 Difference]: Finished difference Result 73967 states and 317811 transitions. [2021-01-20 21:14:41,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:14:41,656 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-01-20 21:14:41,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:14:41,667 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:14:41,668 INFO L78 Accepts]: Start accepts. Automaton has 73967 states and 317811 transitions. Word has length 45 [2021-01-20 21:14:41,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:14:41,675 INFO L481 AbstractCegarLoop]: Abstraction has 73967 states and 317811 transitions. [2021-01-20 21:14:41,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:14:41,676 INFO L276 IsEmpty]: Start isEmpty. Operand 73967 states and 317811 transitions. [2021-01-20 21:14:41,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-20 21:14:41,808 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:14:41,811 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:14:41,811 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 21:14:41,812 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:14:41,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:14:41,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1139015446, now seen corresponding path program 1 times [2021-01-20 21:14:41,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:14:41,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494722170] [2021-01-20 21:14:41,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:14:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:14:42,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:14:42,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494722170] [2021-01-20 21:14:42,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:14:42,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:14:42,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566875282] [2021-01-20 21:14:42,060 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:14:42,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:14:42,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:14:42,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:14:42,062 INFO L87 Difference]: Start difference. First operand 73967 states and 317811 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:14:43,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:14:43,615 INFO L93 Difference]: Finished difference Result 109679 states and 468735 transitions. [2021-01-20 21:14:43,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:14:43,615 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-01-20 21:14:43,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:14:43,617 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:14:43,617 INFO L78 Accepts]: Start accepts. Automaton has 109679 states and 468735 transitions. Word has length 47 [2021-01-20 21:14:43,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:14:43,618 INFO L481 AbstractCegarLoop]: Abstraction has 109679 states and 468735 transitions. [2021-01-20 21:14:43,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:14:43,618 INFO L276 IsEmpty]: Start isEmpty. Operand 109679 states and 468735 transitions. [2021-01-20 21:14:44,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-20 21:14:44,114 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:14:44,114 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:14:44,114 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 21:14:44,114 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:14:44,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:14:44,116 INFO L82 PathProgramCache]: Analyzing trace with hash -1367050025, now seen corresponding path program 1 times [2021-01-20 21:14:44,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:14:44,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532766521] [2021-01-20 21:14:44,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:14:44,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:14:44,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:14:44,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532766521] [2021-01-20 21:14:44,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:14:44,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:14:44,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718903624] [2021-01-20 21:14:44,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:14:44,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:14:44,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:14:44,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:14:44,377 INFO L87 Difference]: Start difference. First operand 109679 states and 468735 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:14:46,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:14:46,483 INFO L93 Difference]: Finished difference Result 179279 states and 761719 transitions. [2021-01-20 21:14:46,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:14:46,485 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-01-20 21:14:46,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:14:46,493 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:14:46,493 INFO L78 Accepts]: Start accepts. Automaton has 179279 states and 761719 transitions. Word has length 49 [2021-01-20 21:14:46,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:14:46,496 INFO L481 AbstractCegarLoop]: Abstraction has 179279 states and 761719 transitions. [2021-01-20 21:14:46,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:14:46,497 INFO L276 IsEmpty]: Start isEmpty. Operand 179279 states and 761719 transitions. [2021-01-20 21:14:47,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-20 21:14:47,125 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:14:47,125 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:14:47,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 21:14:47,126 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:14:47,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:14:47,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1400237191, now seen corresponding path program 1 times [2021-01-20 21:14:47,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:14:47,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410273088] [2021-01-20 21:14:47,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:14:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:14:47,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:14:47,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410273088] [2021-01-20 21:14:47,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:14:47,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:14:47,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069813547] [2021-01-20 21:14:47,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:14:47,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:14:47,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:14:47,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:14:47,344 INFO L87 Difference]: Start difference. First operand 179279 states and 761719 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:14:50,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:14:50,935 INFO L93 Difference]: Finished difference Result 286159 states and 1200151 transitions. [2021-01-20 21:14:50,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:14:50,936 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-01-20 21:14:50,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:14:50,937 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:14:50,937 INFO L78 Accepts]: Start accepts. Automaton has 286159 states and 1200151 transitions. Word has length 50 [2021-01-20 21:14:50,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:14:50,938 INFO L481 AbstractCegarLoop]: Abstraction has 286159 states and 1200151 transitions. [2021-01-20 21:14:50,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:14:50,938 INFO L276 IsEmpty]: Start isEmpty. Operand 286159 states and 1200151 transitions. [2021-01-20 21:14:51,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-20 21:14:51,110 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:14:51,110 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:14:51,110 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 21:14:51,110 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:14:51,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:14:51,111 INFO L82 PathProgramCache]: Analyzing trace with hash -273017064, now seen corresponding path program 1 times [2021-01-20 21:14:51,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:14:51,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026560716] [2021-01-20 21:14:51,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:14:51,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:14:51,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:14:51,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026560716] [2021-01-20 21:14:51,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:14:51,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:14:51,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140905128] [2021-01-20 21:14:51,347 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:14:51,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:14:51,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:14:51,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:14:51,349 INFO L87 Difference]: Start difference. First operand 286159 states and 1200151 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:14:56,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:14:56,525 INFO L93 Difference]: Finished difference Result 408431 states and 1706927 transitions. [2021-01-20 21:14:56,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:14:56,526 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-01-20 21:14:56,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:14:56,527 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-01-20 21:14:56,527 INFO L78 Accepts]: Start accepts. Automaton has 408431 states and 1706927 transitions. Word has length 51 [2021-01-20 21:14:56,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:14:56,528 INFO L481 AbstractCegarLoop]: Abstraction has 408431 states and 1706927 transitions. [2021-01-20 21:14:56,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:14:56,528 INFO L276 IsEmpty]: Start isEmpty. Operand 408431 states and 1706927 transitions. [2021-01-20 21:14:56,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-20 21:14:56,759 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:14:56,760 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:14:56,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 21:14:56,760 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:14:56,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:14:56,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1854220962, now seen corresponding path program 2 times [2021-01-20 21:14:56,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:14:56,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006027387] [2021-01-20 21:14:56,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:14:56,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:14:56,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:14:56,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006027387] [2021-01-20 21:14:56,963 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:14:56,963 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:14:56,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267361533] [2021-01-20 21:14:56,964 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:14:56,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:14:56,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:14:56,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:14:56,965 INFO L87 Difference]: Start difference. First operand 408431 states and 1706927 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:15:05,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:15:05,321 INFO L93 Difference]: Finished difference Result 642287 states and 2667983 transitions. [2021-01-20 21:15:05,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:15:05,322 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-01-20 21:15:05,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:15:05,323 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:15:05,324 INFO L78 Accepts]: Start accepts. Automaton has 642287 states and 2667983 transitions. Word has length 51 [2021-01-20 21:15:05,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:15:05,326 INFO L481 AbstractCegarLoop]: Abstraction has 642287 states and 2667983 transitions. [2021-01-20 21:15:05,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:15:05,327 INFO L276 IsEmpty]: Start isEmpty. Operand 642287 states and 2667983 transitions. [2021-01-20 21:15:05,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-01-20 21:15:05,838 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:15:05,838 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:15:05,838 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 21:15:05,838 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:15:05,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:15:05,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1153343617, now seen corresponding path program 1 times [2021-01-20 21:15:05,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:15:05,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894552487] [2021-01-20 21:15:05,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:15:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:15:05,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:15:05,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894552487] [2021-01-20 21:15:05,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:15:05,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:15:05,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34440118] [2021-01-20 21:15:05,963 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:15:05,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:15:05,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:15:05,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:15:05,964 INFO L87 Difference]: Start difference. First operand 642287 states and 2667983 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:15:20,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:15:20,070 INFO L93 Difference]: Finished difference Result 1211759 states and 4955951 transitions. [2021-01-20 21:15:20,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-01-20 21:15:20,071 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-01-20 21:15:20,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:15:20,071 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-01-20 21:15:20,072 INFO L78 Accepts]: Start accepts. Automaton has 1211759 states and 4955951 transitions. Word has length 52 [2021-01-20 21:15:20,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:15:20,072 INFO L481 AbstractCegarLoop]: Abstraction has 1211759 states and 4955951 transitions. [2021-01-20 21:15:20,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:15:20,072 INFO L276 IsEmpty]: Start isEmpty. Operand 1211759 states and 4955951 transitions. [2021-01-20 21:15:20,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-20 21:15:20,638 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:15:20,638 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:15:20,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 21:15:20,640 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:15:20,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:15:20,642 INFO L82 PathProgramCache]: Analyzing trace with hash -613264223, now seen corresponding path program 1 times [2021-01-20 21:15:20,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:15:20,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968864813] [2021-01-20 21:15:20,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:15:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:15:20,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:15:20,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968864813] [2021-01-20 21:15:20,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:15:20,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:15:20,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023359308] [2021-01-20 21:15:20,788 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:15:20,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:15:20,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:15:20,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:15:20,789 INFO L87 Difference]: Start difference. First operand 1211759 states and 4955951 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:15:33,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:15:33,803 INFO L93 Difference]: Finished difference Result 843003 states and 3396331 transitions. [2021-01-20 21:15:33,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 21:15:33,805 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-01-20 21:15:33,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:15:33,805 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:15:33,805 INFO L78 Accepts]: Start accepts. Automaton has 843003 states and 3396331 transitions. Word has length 53 [2021-01-20 21:15:33,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:15:33,806 INFO L481 AbstractCegarLoop]: Abstraction has 843003 states and 3396331 transitions. [2021-01-20 21:15:33,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:15:33,806 INFO L276 IsEmpty]: Start isEmpty. Operand 843003 states and 3396331 transitions. [2021-01-20 21:15:34,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-20 21:15:34,631 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:15:34,631 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:15:34,631 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-20 21:15:34,631 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:15:34,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:15:34,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1217531091, now seen corresponding path program 1 times [2021-01-20 21:15:34,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:15:34,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940051551] [2021-01-20 21:15:34,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:15:34,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:15:35,601 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 5 [2021-01-20 21:15:35,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:15:35,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940051551] [2021-01-20 21:15:35,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:15:35,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:15:35,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972443735] [2021-01-20 21:15:35,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:15:35,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:15:35,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:15:35,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:15:35,622 INFO L87 Difference]: Start difference. First operand 843003 states and 3396331 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:15:37,178 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2021-01-20 21:15:37,493 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2021-01-20 21:15:43,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:15:43,747 INFO L93 Difference]: Finished difference Result 462183 states and 1823621 transitions. [2021-01-20 21:15:43,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:15:43,748 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-01-20 21:15:43,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:15:43,749 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-01-20 21:15:43,749 INFO L78 Accepts]: Start accepts. Automaton has 462183 states and 1823621 transitions. Word has length 54 [2021-01-20 21:15:43,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:15:43,751 INFO L481 AbstractCegarLoop]: Abstraction has 462183 states and 1823621 transitions. [2021-01-20 21:15:43,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:15:43,751 INFO L276 IsEmpty]: Start isEmpty. Operand 462183 states and 1823621 transitions. [2021-01-20 21:15:44,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-20 21:15:44,378 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:15:44,378 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:15:44,378 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-20 21:15:44,379 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:15:44,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:15:44,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1586012644, now seen corresponding path program 1 times [2021-01-20 21:15:44,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:15:44,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40160981] [2021-01-20 21:15:44,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:15:44,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:15:44,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:15:44,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40160981] [2021-01-20 21:15:44,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:15:44,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-20 21:15:44,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264382371] [2021-01-20 21:15:44,599 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-20 21:15:44,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:15:44,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-20 21:15:44,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-20 21:15:44,601 INFO L87 Difference]: Start difference. First operand 462183 states and 1823621 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:15:48,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:15:48,252 INFO L93 Difference]: Finished difference Result 238119 states and 925901 transitions. [2021-01-20 21:15:48,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-01-20 21:15:48,252 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-20 21:15:48,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:15:48,253 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2021-01-20 21:15:48,253 INFO L78 Accepts]: Start accepts. Automaton has 238119 states and 925901 transitions. Word has length 55 [2021-01-20 21:15:48,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:15:48,254 INFO L481 AbstractCegarLoop]: Abstraction has 238119 states and 925901 transitions. [2021-01-20 21:15:48,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:15:48,254 INFO L276 IsEmpty]: Start isEmpty. Operand 238119 states and 925901 transitions. [2021-01-20 21:15:49,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-01-20 21:15:49,997 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:15:49,997 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:15:49,998 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-20 21:15:49,998 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:15:49,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:15:49,998 INFO L82 PathProgramCache]: Analyzing trace with hash -237436163, now seen corresponding path program 1 times [2021-01-20 21:15:49,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:15:49,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628883277] [2021-01-20 21:15:49,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:15:50,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:15:50,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:15:50,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628883277] [2021-01-20 21:15:50,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:15:50,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-20 21:15:50,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561591074] [2021-01-20 21:15:50,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-20 21:15:50,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:15:50,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-20 21:15:50,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-01-20 21:15:50,408 INFO L87 Difference]: Start difference. First operand 238119 states and 925901 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:15:50,826 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2021-01-20 21:15:52,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:15:52,961 INFO L93 Difference]: Finished difference Result 156093 states and 608543 transitions. [2021-01-20 21:15:52,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-01-20 21:15:52,962 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-01-20 21:15:52,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:15:52,963 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506 [2021-01-20 21:15:52,966 INFO L78 Accepts]: Start accepts. Automaton has 156093 states and 608543 transitions. Word has length 57 [2021-01-20 21:15:52,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:15:52,966 INFO L481 AbstractCegarLoop]: Abstraction has 156093 states and 608543 transitions. [2021-01-20 21:15:52,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:15:52,967 INFO L276 IsEmpty]: Start isEmpty. Operand 156093 states and 608543 transitions. [2021-01-20 21:15:53,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-01-20 21:15:53,569 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:15:53,570 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:15:53,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-20 21:15:53,570 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:15:53,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:15:53,571 INFO L82 PathProgramCache]: Analyzing trace with hash 665182430, now seen corresponding path program 1 times [2021-01-20 21:15:53,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:15:53,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938971618] [2021-01-20 21:15:53,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:15:53,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:15:54,530 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2021-01-20 21:15:54,796 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2021-01-20 21:15:54,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:15:54,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938971618] [2021-01-20 21:15:54,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:15:54,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:15:54,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169191180] [2021-01-20 21:15:54,825 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:15:54,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:15:54,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:15:54,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:15:54,828 INFO L87 Difference]: Start difference. First operand 156093 states and 608543 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:15:57,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:15:57,544 INFO L93 Difference]: Finished difference Result 256576 states and 995952 transitions. [2021-01-20 21:15:57,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 21:15:57,545 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-01-20 21:15:57,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:15:57,546 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:15:57,546 INFO L78 Accepts]: Start accepts. Automaton has 256576 states and 995952 transitions. Word has length 59 [2021-01-20 21:15:57,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:15:57,546 INFO L481 AbstractCegarLoop]: Abstraction has 256576 states and 995952 transitions. [2021-01-20 21:15:57,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:15:57,546 INFO L276 IsEmpty]: Start isEmpty. Operand 256576 states and 995952 transitions. [2021-01-20 21:15:59,222 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 21:15:59,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-20 21:15:59,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 09:15:59 BasicIcfg [2021-01-20 21:15:59,234 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 21:15:59,257 INFO L168 Benchmark]: Toolchain (without parser) took 94361.30 ms. Allocated memory was 302.0 MB in the beginning and 15.9 GB in the end (delta: 15.6 GB). Free memory was 275.8 MB in the beginning and 4.3 GB in the end (delta: -4.0 GB). Peak memory consumption was 12.2 GB. Max. memory is 16.0 GB. [2021-01-20 21:15:59,258 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 302.0 MB. Free memory is still 271.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:15:59,262 INFO L168 Benchmark]: CACSL2BoogieTranslator took 880.92 ms. Allocated memory is still 302.0 MB. Free memory was 275.6 MB in the beginning and 275.4 MB in the end (delta: 140.9 kB). Peak memory consumption was 31.8 MB. Max. memory is 16.0 GB. [2021-01-20 21:15:59,263 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.51 ms. Allocated memory is still 302.0 MB. Free memory was 275.4 MB in the beginning and 273.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:15:59,267 INFO L168 Benchmark]: Boogie Preprocessor took 63.09 ms. Allocated memory is still 302.0 MB. Free memory was 273.7 MB in the beginning and 271.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:15:59,273 INFO L168 Benchmark]: RCFGBuilder took 621.45 ms. Allocated memory is still 302.0 MB. Free memory was 271.6 MB in the beginning and 247.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:15:59,281 INFO L168 Benchmark]: TraceAbstraction took 92704.54 ms. Allocated memory was 302.0 MB in the beginning and 15.9 GB in the end (delta: 15.6 GB). Free memory was 247.4 MB in the beginning and 4.3 GB in the end (delta: -4.1 GB). Peak memory consumption was 12.2 GB. Max. memory is 16.0 GB. [2021-01-20 21:15:59,286 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 302.0 MB. Free memory is still 271.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 880.92 ms. Allocated memory is still 302.0 MB. Free memory was 275.6 MB in the beginning and 275.4 MB in the end (delta: 140.9 kB). Peak memory consumption was 31.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 82.51 ms. Allocated memory is still 302.0 MB. Free memory was 275.4 MB in the beginning and 273.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 63.09 ms. Allocated memory is still 302.0 MB. Free memory was 273.7 MB in the beginning and 271.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 621.45 ms. Allocated memory is still 302.0 MB. Free memory was 271.6 MB in the beginning and 247.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 92704.54 ms. Allocated memory was 302.0 MB in the beginning and 15.9 GB in the end (delta: 15.6 GB). Free memory was 247.4 MB in the beginning and 4.3 GB in the end (delta: -4.1 GB). Peak memory consumption was 12.2 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 92.5s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 67.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.6s, HoareTripleCheckerStatistics: 1729 SDtfs, 3397 SDslu, 6059 SDs, 0 SdLazy, 650 SolverSat, 174 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 186 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1211759occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 623 NumberOfCodeBlocks, 623 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 611 ConstructedInterpolants, 0 QuantifiedInterpolants, 83993 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...