/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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 14:45:24,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 14:45:24,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 14:45:24,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 14:45:24,909 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 14:45:24,911 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 14:45:24,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 14:45:24,915 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 14:45:24,917 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 14:45:24,918 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 14:45:24,920 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 14:45:24,921 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 14:45:24,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 14:45:24,923 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 14:45:24,924 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 14:45:24,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 14:45:24,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 14:45:24,928 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 14:45:24,930 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 14:45:24,932 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 14:45:24,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 14:45:24,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 14:45:24,937 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 14:45:24,938 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 14:45:24,942 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-20 14:45:24,951 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 14:45:24,952 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 14:45:24,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 14:45:24,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 14:45:24,960 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 14:45:24,960 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 14:45:24,961 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 14:45:24,961 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 14:45:24,961 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 14:45:24,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 14:45:24,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 14:45:24,965 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-01-20 14:45:25,015 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 14:45:25,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 14:45:25,020 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 14:45:25,021 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 14:45:25,021 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 14:45:25,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 14:45:25,022 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 14:45:25,022 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 14:45:25,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 14:45:25,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 14:45:25,024 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 14:45:25,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 14:45:25,024 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 14:45:25,025 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 14:45:25,025 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 14:45:25,025 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 14:45:25,025 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 14:45:25,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 14:45:25,026 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 14:45:25,026 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 14:45:25,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 14:45:25,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 14:45:25,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 14:45:25,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 14:45:25,028 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 14:45:25,028 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 14:45:25,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 14:45:25,029 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 14:45:25,029 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 14:45:25,029 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 14:45:25,030 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 14:45:25,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 14:45:25,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 14:45:25,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 14:45:25,545 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 14:45:25,545 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 14:45:25,547 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i [2021-01-20 14:45:25,633 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0da106e5c/f78b315c67854a58b5c67e7ab8646ad3/FLAG4c3fba09e [2021-01-20 14:45:26,333 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 14:45:26,334 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i [2021-01-20 14:45:26,357 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0da106e5c/f78b315c67854a58b5c67e7ab8646ad3/FLAG4c3fba09e [2021-01-20 14:45:26,526 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0da106e5c/f78b315c67854a58b5c67e7ab8646ad3 [2021-01-20 14:45:26,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 14:45:26,535 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 14:45:26,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 14:45:26,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 14:45:26,542 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 14:45:26,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:45:26" (1/1) ... [2021-01-20 14:45:26,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3728d06a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:26, skipping insertion in model container [2021-01-20 14:45:26,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:45:26" (1/1) ... [2021-01-20 14:45:26,561 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 14:45:26,637 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 14:45:27,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:45:27,129 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 14:45:27,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:45:27,329 INFO L208 MainTranslator]: Completed translation [2021-01-20 14:45:27,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:27 WrapperNode [2021-01-20 14:45:27,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 14:45:27,332 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 14:45:27,332 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 14:45:27,333 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 14:45:27,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:27" (1/1) ... [2021-01-20 14:45:27,362 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:27" (1/1) ... [2021-01-20 14:45:27,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 14:45:27,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 14:45:27,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 14:45:27,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 14:45:27,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:27" (1/1) ... [2021-01-20 14:45:27,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:27" (1/1) ... [2021-01-20 14:45:27,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:27" (1/1) ... [2021-01-20 14:45:27,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:27" (1/1) ... [2021-01-20 14:45:27,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:27" (1/1) ... [2021-01-20 14:45:27,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:27" (1/1) ... [2021-01-20 14:45:27,409 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:27" (1/1) ... [2021-01-20 14:45:27,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 14:45:27,413 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 14:45:27,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 14:45:27,413 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 14:45:27,414 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:27" (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 14:45:27,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 14:45:27,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 14:45:27,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 14:45:27,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 14:45:27,492 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 14:45:27,492 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 14:45:27,492 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 14:45:27,492 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 14:45:27,492 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 14:45:27,492 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 14:45:27,493 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-01-20 14:45:27,493 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-01-20 14:45:27,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 14:45:27,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 14:45:27,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 14:45:27,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 14:45:27,495 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 14:45:27,849 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 14:45:27,850 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 14:45:27,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:45:27 BoogieIcfgContainer [2021-01-20 14:45:27,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 14:45:27,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 14:45:27,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 14:45:27,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 14:45:27,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 02:45:26" (1/3) ... [2021-01-20 14:45:27,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b8cad7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:45:27, skipping insertion in model container [2021-01-20 14:45:27,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:45:27" (2/3) ... [2021-01-20 14:45:27,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b8cad7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:45:27, skipping insertion in model container [2021-01-20 14:45:27,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:45:27" (3/3) ... [2021-01-20 14:45:27,861 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_pso.opt.i [2021-01-20 14:45:27,878 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 14:45:27,878 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 14:45:27,882 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 14:45:27,883 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 14:45:27,918 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,918 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,918 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,918 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,919 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,919 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,919 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,919 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,920 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,920 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,920 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,920 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,921 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,921 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,922 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,922 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,922 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,922 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,923 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,923 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,923 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,923 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,924 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,924 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,924 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,924 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,924 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,924 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,925 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,925 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,926 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,926 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,926 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,926 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,927 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,927 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,927 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,927 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,927 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,928 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,928 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,928 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,928 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,928 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,929 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,931 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,931 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,932 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,932 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,940 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,940 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,940 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,941 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,943 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,943 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,944 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,944 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,947 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,947 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,947 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,947 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:45:27,949 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 14:45:27,964 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-01-20 14:45:27,988 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 14:45:27,988 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 14:45:27,989 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 14:45:27,989 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 14:45:27,989 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 14:45:27,989 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 14:45:27,989 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 14:45:27,990 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 14:45:28,003 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 100 places, 90 transitions, 200 flow [2021-01-20 14:45:37,277 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 54312 states, 54310 states have (on average 4.420254096851409) internal successors, (240064), 54311 states have internal predecessors, (240064), 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 14:45:37,595 INFO L276 IsEmpty]: Start isEmpty. Operand has 54312 states, 54310 states have (on average 4.420254096851409) internal successors, (240064), 54311 states have internal predecessors, (240064), 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 14:45:37,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-01-20 14:45:37,713 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:37,714 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] [2021-01-20 14:45:37,716 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:37,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:37,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1521340881, now seen corresponding path program 1 times [2021-01-20 14:45:37,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:37,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852000291] [2021-01-20 14:45:37,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:38,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:38,433 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 14:45:38,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852000291] [2021-01-20 14:45:38,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:38,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:45:38,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461135297] [2021-01-20 14:45:38,440 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:45:38,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:38,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:45:38,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:45:38,522 INFO L87 Difference]: Start difference. First operand has 54312 states, 54310 states have (on average 4.420254096851409) internal successors, (240064), 54311 states have internal predecessors, (240064), 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 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 14:45:40,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:40,005 INFO L93 Difference]: Finished difference Result 68928 states and 296104 transitions. [2021-01-20 14:45:40,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:45:40,007 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2021-01-20 14:45:40,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:40,518 INFO L225 Difference]: With dead ends: 68928 [2021-01-20 14:45:40,519 INFO L226 Difference]: Without dead ends: 23820 [2021-01-20 14:45:40,520 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 14:45:40,521 INFO L78 Accepts]: Start accepts. Automaton has 23820 states. Word has length 46 [2021-01-20 14:45:40,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:40,522 INFO L481 AbstractCegarLoop]: Abstraction has 23820 states. [2021-01-20 14:45:40,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 14:45:40,523 INFO L276 IsEmpty]: Start isEmpty. Operand 23820 states. [2021-01-20 14:45:40,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-01-20 14:45:40,580 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:40,580 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] [2021-01-20 14:45:40,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 14:45:40,581 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:40,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:40,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1443855120, now seen corresponding path program 1 times [2021-01-20 14:45:40,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:40,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861747686] [2021-01-20 14:45:40,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:40,805 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 14:45:40,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861747686] [2021-01-20 14:45:40,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:40,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:45:40,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295952903] [2021-01-20 14:45:40,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:45:40,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:40,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:45:40,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:45:40,812 INFO L87 Difference]: Start difference. First operand 23820 states. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 14:45:41,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:41,367 INFO L93 Difference]: Finished difference Result 28188 states and 118076 transitions. [2021-01-20 14:45:41,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:45:41,368 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 48 [2021-01-20 14:45:41,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:41,509 INFO L225 Difference]: With dead ends: 28188 [2021-01-20 14:45:41,509 INFO L226 Difference]: Without dead ends: 23148 [2021-01-20 14:45:41,510 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 14:45:41,510 INFO L78 Accepts]: Start accepts. Automaton has 23148 states. Word has length 48 [2021-01-20 14:45:41,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:41,511 INFO L481 AbstractCegarLoop]: Abstraction has 23148 states. [2021-01-20 14:45:41,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 14:45:41,512 INFO L276 IsEmpty]: Start isEmpty. Operand 23148 states. [2021-01-20 14:45:41,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-20 14:45:41,667 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:41,667 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 14:45:41,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 14:45:41,667 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:41,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:41,668 INFO L82 PathProgramCache]: Analyzing trace with hash 783013961, now seen corresponding path program 1 times [2021-01-20 14:45:41,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:41,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037361780] [2021-01-20 14:45:41,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:41,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:41,847 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 14:45:41,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037361780] [2021-01-20 14:45:41,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:41,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:45:41,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710350825] [2021-01-20 14:45:41,849 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:45:41,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:41,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:45:41,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:45:41,851 INFO L87 Difference]: Start difference. First operand 23148 states. 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 14:45:42,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:42,521 INFO L93 Difference]: Finished difference Result 37260 states and 154244 transitions. [2021-01-20 14:45:42,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:45:42,522 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 14:45:42,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:42,675 INFO L225 Difference]: With dead ends: 37260 [2021-01-20 14:45:42,675 INFO L226 Difference]: Without dead ends: 25836 [2021-01-20 14:45:42,677 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 14:45:42,677 INFO L78 Accepts]: Start accepts. Automaton has 25836 states. Word has length 49 [2021-01-20 14:45:42,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:42,679 INFO L481 AbstractCegarLoop]: Abstraction has 25836 states. [2021-01-20 14:45:42,681 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 14:45:42,681 INFO L276 IsEmpty]: Start isEmpty. Operand 25836 states. [2021-01-20 14:45:42,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-20 14:45:42,739 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:42,740 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 14:45:42,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 14:45:42,740 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:42,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:42,741 INFO L82 PathProgramCache]: Analyzing trace with hash 2029135721, now seen corresponding path program 1 times [2021-01-20 14:45:42,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:42,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45588677] [2021-01-20 14:45:42,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:42,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:42,947 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 14:45:42,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45588677] [2021-01-20 14:45:42,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:42,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:45:42,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039353947] [2021-01-20 14:45:42,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:45:42,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:42,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:45:42,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:45:42,949 INFO L87 Difference]: Start difference. First operand 25836 states. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 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 14:45:43,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:43,629 INFO L93 Difference]: Finished difference Result 34292 states and 138806 transitions. [2021-01-20 14:45:43,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:45:43,630 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 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 14:45:43,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:43,698 INFO L225 Difference]: With dead ends: 34292 [2021-01-20 14:45:43,698 INFO L226 Difference]: Without dead ends: 18584 [2021-01-20 14:45:43,698 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-20 14:45:43,699 INFO L78 Accepts]: Start accepts. Automaton has 18584 states. Word has length 50 [2021-01-20 14:45:43,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:43,699 INFO L481 AbstractCegarLoop]: Abstraction has 18584 states. [2021-01-20 14:45:43,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 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 14:45:43,699 INFO L276 IsEmpty]: Start isEmpty. Operand 18584 states. [2021-01-20 14:45:43,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-01-20 14:45:43,740 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:43,740 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 14:45:43,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 14:45:43,740 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:43,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:43,741 INFO L82 PathProgramCache]: Analyzing trace with hash 350404744, now seen corresponding path program 1 times [2021-01-20 14:45:43,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:43,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518812020] [2021-01-20 14:45:43,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:43,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:43,861 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 14:45:43,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518812020] [2021-01-20 14:45:43,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:43,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:45:43,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583846944] [2021-01-20 14:45:43,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:45:43,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:43,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:45:43,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:45:43,864 INFO L87 Difference]: Start difference. First operand 18584 states. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:44,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:44,385 INFO L93 Difference]: Finished difference Result 20312 states and 80786 transitions. [2021-01-20 14:45:44,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:45:44,386 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-01-20 14:45:44,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:44,442 INFO L225 Difference]: With dead ends: 20312 [2021-01-20 14:45:44,442 INFO L226 Difference]: Without dead ends: 16280 [2021-01-20 14:45:44,443 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 14:45:44,443 INFO L78 Accepts]: Start accepts. Automaton has 16280 states. Word has length 52 [2021-01-20 14:45:44,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:44,444 INFO L481 AbstractCegarLoop]: Abstraction has 16280 states. [2021-01-20 14:45:44,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:44,444 INFO L276 IsEmpty]: Start isEmpty. Operand 16280 states. [2021-01-20 14:45:44,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-20 14:45:44,475 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:44,476 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 14:45:44,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 14:45:44,476 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:44,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:44,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1207661705, now seen corresponding path program 1 times [2021-01-20 14:45:44,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:44,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866369544] [2021-01-20 14:45:44,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:44,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:44,588 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 14:45:44,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866369544] [2021-01-20 14:45:44,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:44,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:45:44,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728233480] [2021-01-20 14:45:44,589 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:45:44,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:44,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:45:44,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:45:44,591 INFO L87 Difference]: Start difference. First operand 16280 states. 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 14:45:44,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:44,852 INFO L93 Difference]: Finished difference Result 25080 states and 99462 transitions. [2021-01-20 14:45:44,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 14:45:44,852 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 14:45:44,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:45,117 INFO L225 Difference]: With dead ends: 25080 [2021-01-20 14:45:45,117 INFO L226 Difference]: Without dead ends: 14700 [2021-01-20 14:45:45,118 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:45:45,118 INFO L78 Accepts]: Start accepts. Automaton has 14700 states. Word has length 54 [2021-01-20 14:45:45,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:45,119 INFO L481 AbstractCegarLoop]: Abstraction has 14700 states. [2021-01-20 14:45:45,120 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 14:45:45,120 INFO L276 IsEmpty]: Start isEmpty. Operand 14700 states. [2021-01-20 14:45:45,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-20 14:45:45,146 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:45,146 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 14:45:45,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 14:45:45,147 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:45,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:45,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1887275789, now seen corresponding path program 2 times [2021-01-20 14:45:45,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:45,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241521626] [2021-01-20 14:45:45,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:45,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:45,304 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 14:45:45,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241521626] [2021-01-20 14:45:45,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:45,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:45:45,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79401477] [2021-01-20 14:45:45,305 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:45:45,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:45,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:45:45,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:45:45,307 INFO L87 Difference]: Start difference. First operand 14700 states. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 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 14:45:45,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:45,617 INFO L93 Difference]: Finished difference Result 19000 states and 74794 transitions. [2021-01-20 14:45:45,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:45:45,618 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 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 14:45:45,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:45,659 INFO L225 Difference]: With dead ends: 19000 [2021-01-20 14:45:45,659 INFO L226 Difference]: Without dead ends: 14264 [2021-01-20 14:45:45,659 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 14:45:45,660 INFO L78 Accepts]: Start accepts. Automaton has 14264 states. Word has length 54 [2021-01-20 14:45:45,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:45,660 INFO L481 AbstractCegarLoop]: Abstraction has 14264 states. [2021-01-20 14:45:45,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 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 14:45:45,660 INFO L276 IsEmpty]: Start isEmpty. Operand 14264 states. [2021-01-20 14:45:45,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-20 14:45:45,691 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:45,691 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 14:45:45,692 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 14:45:45,692 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:45,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:45,692 INFO L82 PathProgramCache]: Analyzing trace with hash 741333027, now seen corresponding path program 1 times [2021-01-20 14:45:45,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:45,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679003900] [2021-01-20 14:45:45,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:45,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:45,852 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 14:45:45,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679003900] [2021-01-20 14:45:45,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:45,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:45:45,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628939284] [2021-01-20 14:45:45,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:45:45,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:45,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:45:45,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:45:45,856 INFO L87 Difference]: Start difference. First operand 14264 states. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:46,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:46,167 INFO L93 Difference]: Finished difference Result 16610 states and 64511 transitions. [2021-01-20 14:45:46,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:45:46,167 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-01-20 14:45:46,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:46,202 INFO L225 Difference]: With dead ends: 16610 [2021-01-20 14:45:46,203 INFO L226 Difference]: Without dead ends: 12146 [2021-01-20 14:45:46,203 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-01-20 14:45:46,203 INFO L78 Accepts]: Start accepts. Automaton has 12146 states. Word has length 55 [2021-01-20 14:45:46,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:46,204 INFO L481 AbstractCegarLoop]: Abstraction has 12146 states. [2021-01-20 14:45:46,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:45:46,204 INFO L276 IsEmpty]: Start isEmpty. Operand 12146 states. [2021-01-20 14:45:46,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-01-20 14:45:46,225 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:46,225 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] [2021-01-20 14:45:46,225 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-20 14:45:46,225 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:46,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:46,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1669139404, now seen corresponding path program 1 times [2021-01-20 14:45:46,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:46,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254260280] [2021-01-20 14:45:46,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:46,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:46,363 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 14:45:46,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254260280] [2021-01-20 14:45:46,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:46,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-20 14:45:46,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682517480] [2021-01-20 14:45:46,365 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-20 14:45:46,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:46,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-20 14:45:46,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-20 14:45:46,366 INFO L87 Difference]: Start difference. First operand 12146 states. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 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 14:45:46,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:46,934 INFO L93 Difference]: Finished difference Result 11237 states and 42401 transitions. [2021-01-20 14:45:46,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-20 14:45:46,935 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 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 56 [2021-01-20 14:45:46,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:46,957 INFO L225 Difference]: With dead ends: 11237 [2021-01-20 14:45:46,957 INFO L226 Difference]: Without dead ends: 7853 [2021-01-20 14:45:46,958 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-01-20 14:45:46,958 INFO L78 Accepts]: Start accepts. Automaton has 7853 states. Word has length 56 [2021-01-20 14:45:46,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:46,958 INFO L481 AbstractCegarLoop]: Abstraction has 7853 states. [2021-01-20 14:45:46,958 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 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 14:45:46,958 INFO L276 IsEmpty]: Start isEmpty. Operand 7853 states. [2021-01-20 14:45:46,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-01-20 14:45:46,971 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:46,972 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] [2021-01-20 14:45:46,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-20 14:45:46,972 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:46,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:46,972 INFO L82 PathProgramCache]: Analyzing trace with hash -10705787, now seen corresponding path program 1 times [2021-01-20 14:45:46,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:46,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641048932] [2021-01-20 14:45:46,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:47,067 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 14:45:47,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641048932] [2021-01-20 14:45:47,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:47,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:45:47,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147915626] [2021-01-20 14:45:47,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:45:47,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:47,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:45:47,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:45:47,069 INFO L87 Difference]: Start difference. First operand 7853 states. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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 14:45:47,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:47,258 INFO L93 Difference]: Finished difference Result 10437 states and 38991 transitions. [2021-01-20 14:45:47,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-20 14:45:47,259 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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 58 [2021-01-20 14:45:47,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:47,281 INFO L225 Difference]: With dead ends: 10437 [2021-01-20 14:45:47,281 INFO L226 Difference]: Without dead ends: 6943 [2021-01-20 14:45:47,282 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:45:47,282 INFO L78 Accepts]: Start accepts. Automaton has 6943 states. Word has length 58 [2021-01-20 14:45:47,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:47,283 INFO L481 AbstractCegarLoop]: Abstraction has 6943 states. [2021-01-20 14:45:47,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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 14:45:47,283 INFO L276 IsEmpty]: Start isEmpty. Operand 6943 states. [2021-01-20 14:45:47,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-01-20 14:45:47,299 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:47,299 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] [2021-01-20 14:45:47,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-20 14:45:47,299 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:47,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:47,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1226318091, now seen corresponding path program 2 times [2021-01-20 14:45:47,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:47,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479984893] [2021-01-20 14:45:47,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:47,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:47,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 14:45:47,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479984893] [2021-01-20 14:45:47,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:47,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-20 14:45:47,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348402937] [2021-01-20 14:45:47,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-20 14:45:47,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:47,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-20 14:45:47,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-01-20 14:45:47,460 INFO L87 Difference]: Start difference. First operand 6943 states. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 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 14:45:47,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:47,720 INFO L93 Difference]: Finished difference Result 4837 states and 17444 transitions. [2021-01-20 14:45:47,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-01-20 14:45:47,721 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 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 58 [2021-01-20 14:45:47,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:47,727 INFO L225 Difference]: With dead ends: 4837 [2021-01-20 14:45:47,728 INFO L226 Difference]: Without dead ends: 2537 [2021-01-20 14:45:47,728 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-01-20 14:45:47,728 INFO L78 Accepts]: Start accepts. Automaton has 2537 states. Word has length 58 [2021-01-20 14:45:47,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:47,730 INFO L481 AbstractCegarLoop]: Abstraction has 2537 states. [2021-01-20 14:45:47,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 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 14:45:47,730 INFO L276 IsEmpty]: Start isEmpty. Operand 2537 states. [2021-01-20 14:45:47,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-01-20 14:45:47,739 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:45:47,739 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, 1] [2021-01-20 14:45:47,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-20 14:45:47,740 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:45:47,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:45:47,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1195573236, now seen corresponding path program 1 times [2021-01-20 14:45:47,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:45:47,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002895343] [2021-01-20 14:45:47,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:45:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:45:47,867 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 14:45:47,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002895343] [2021-01-20 14:45:47,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:45:47,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:45:47,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890413803] [2021-01-20 14:45:47,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:45:47,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:45:47,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:45:47,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:45:47,870 INFO L87 Difference]: Start difference. First operand 2537 states. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 14:45:47,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:45:47,972 INFO L93 Difference]: Finished difference Result 2213 states and 7697 transitions. [2021-01-20 14:45:47,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 14:45:47,972 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 60 [2021-01-20 14:45:47,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:45:47,972 INFO L225 Difference]: With dead ends: 2213 [2021-01-20 14:45:47,972 INFO L226 Difference]: Without dead ends: 0 [2021-01-20 14:45:47,973 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:45:47,973 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 60 [2021-01-20 14:45:47,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:45:47,973 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-20 14:45:47,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 14:45:47,973 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-20 14:45:47,974 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 14:45:47,974 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-20 14:45:47,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 02:45:47 BasicIcfg [2021-01-20 14:45:47,979 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 14:45:47,981 INFO L168 Benchmark]: Toolchain (without parser) took 21446.81 ms. Allocated memory was 302.0 MB in the beginning and 7.3 GB in the end (delta: 7.0 GB). Free memory was 275.1 MB in the beginning and 6.2 GB in the end (delta: -6.0 GB). Peak memory consumption was 986.9 MB. Max. memory is 16.0 GB. [2021-01-20 14:45:47,982 INFO L168 Benchmark]: CDTParser took 0.62 ms. Allocated memory is still 302.0 MB. Free memory is still 270.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:45:47,982 INFO L168 Benchmark]: CACSL2BoogieTranslator took 792.45 ms. Allocated memory is still 302.0 MB. Free memory was 274.9 MB in the beginning and 276.3 MB in the end (delta: -1.4 MB). Peak memory consumption was 31.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:45:47,983 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.61 ms. Allocated memory is still 302.0 MB. Free memory was 276.3 MB in the beginning and 274.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:45:47,984 INFO L168 Benchmark]: Boogie Preprocessor took 28.18 ms. Allocated memory is still 302.0 MB. Free memory was 274.2 MB in the beginning and 273.2 MB in the end (delta: 995.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:45:47,984 INFO L168 Benchmark]: RCFGBuilder took 439.09 ms. Allocated memory is still 302.0 MB. Free memory was 273.2 MB in the beginning and 248.0 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-01-20 14:45:47,985 INFO L168 Benchmark]: TraceAbstraction took 20124.67 ms. Allocated memory was 302.0 MB in the beginning and 7.3 GB in the end (delta: 7.0 GB). Free memory was 248.0 MB in the beginning and 6.2 GB in the end (delta: -6.0 GB). Peak memory consumption was 960.0 MB. Max. memory is 16.0 GB. [2021-01-20 14:45:47,988 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62 ms. Allocated memory is still 302.0 MB. Free memory is still 270.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 792.45 ms. Allocated memory is still 302.0 MB. Free memory was 274.9 MB in the beginning and 276.3 MB in the end (delta: -1.4 MB). Peak memory consumption was 31.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 51.61 ms. Allocated memory is still 302.0 MB. Free memory was 276.3 MB in the beginning and 274.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.18 ms. Allocated memory is still 302.0 MB. Free memory was 274.2 MB in the beginning and 273.2 MB in the end (delta: 995.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 439.09 ms. Allocated memory is still 302.0 MB. Free memory was 273.2 MB in the beginning and 248.0 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 20124.67 ms. Allocated memory was 302.0 MB in the beginning and 7.3 GB in the end (delta: 7.0 GB). Free memory was 248.0 MB in the beginning and 6.2 GB in the end (delta: -6.0 GB). Peak memory consumption was 960.0 MB. 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, 88 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.9s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 7.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.2s, HoareTripleCheckerStatistics: 1379 SDtfs, 2123 SDslu, 4496 SDs, 0 SdLazy, 503 SolverSat, 120 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54312occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 640 NumberOfCodeBlocks, 640 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 628 ConstructedInterpolants, 0 QuantifiedInterpolants, 88674 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...