/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-New_States.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 12:30:19,728 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 12:30:19,732 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 12:30:19,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 12:30:19,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 12:30:19,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 12:30:19,808 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 12:30:19,816 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 12:30:19,820 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 12:30:19,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 12:30:19,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 12:30:19,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 12:30:19,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 12:30:19,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 12:30:19,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 12:30:19,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 12:30:19,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 12:30:19,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 12:30:19,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 12:30:19,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 12:30:19,861 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 12:30:19,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 12:30:19,864 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 12:30:19,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 12:30:19,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-12 12:30:19,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 12:30:19,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 12:30:19,886 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 12:30:19,887 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 12:30:19,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 12:30:19,888 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 12:30:19,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 12:30:19,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 12:30:19,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 12:30:19,891 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 12:30:19,892 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 12:30:19,893 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-New_States.epf [2020-11-12 12:30:19,949 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 12:30:19,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 12:30:19,954 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 12:30:19,954 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 12:30:19,955 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 12:30:19,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 12:30:19,955 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 12:30:19,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 12:30:19,956 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 12:30:19,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 12:30:19,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 12:30:19,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 12:30:19,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 12:30:19,958 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 12:30:19,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 12:30:19,958 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 12:30:19,958 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 12:30:19,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 12:30:19,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 12:30:19,959 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 12:30:19,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 12:30:19,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 12:30:19,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 12:30:19,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 12:30:19,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 12:30:19,961 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 12:30:19,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 12:30:19,961 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 12:30:19,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 12:30:19,962 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 12:30:19,962 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=NEW_STATES 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 12:30:20,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 12:30:20,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 12:30:20,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 12:30:20,412 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 12:30:20,413 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 12:30:20,414 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.opt.i [2020-11-12 12:30:20,503 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ba14bf85/23b63bd087ea4285b81a3a1b410978d5/FLAG54ee10c6e [2020-11-12 12:30:21,269 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 12:30:21,270 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_pso.opt.i [2020-11-12 12:30:21,289 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ba14bf85/23b63bd087ea4285b81a3a1b410978d5/FLAG54ee10c6e [2020-11-12 12:30:21,572 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ba14bf85/23b63bd087ea4285b81a3a1b410978d5 [2020-11-12 12:30:21,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 12:30:21,585 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 12:30:21,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 12:30:21,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 12:30:21,591 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 12:30:21,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:30:21" (1/1) ... [2020-11-12 12:30:21,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52fcb6e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:30:21, skipping insertion in model container [2020-11-12 12:30:21,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:30:21" (1/1) ... [2020-11-12 12:30:21,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 12:30:21,648 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 12:30:22,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:30:22,139 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 12:30:22,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 12:30:22,340 INFO L208 MainTranslator]: Completed translation [2020-11-12 12:30:22,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:30:22 WrapperNode [2020-11-12 12:30:22,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 12:30:22,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 12:30:22,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 12:30:22,343 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 12:30:22,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:30:22" (1/1) ... [2020-11-12 12:30:22,371 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:30:22" (1/1) ... [2020-11-12 12:30:22,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 12:30:22,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 12:30:22,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 12:30:22,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 12:30:22,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:30:22" (1/1) ... [2020-11-12 12:30:22,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:30:22" (1/1) ... [2020-11-12 12:30:22,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:30:22" (1/1) ... [2020-11-12 12:30:22,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:30:22" (1/1) ... [2020-11-12 12:30:22,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:30:22" (1/1) ... [2020-11-12 12:30:22,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:30:22" (1/1) ... [2020-11-12 12:30:22,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:30:22" (1/1) ... [2020-11-12 12:30:22,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 12:30:22,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 12:30:22,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 12:30:22,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 12:30:22,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:30:22" (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 [2020-11-12 12:30:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 12:30:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 12:30:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 12:30:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 12:30:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 12:30:22,518 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 12:30:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 12:30:22,518 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 12:30:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 12:30:22,518 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 12:30:22,519 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-11-12 12:30:22,519 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-11-12 12:30:22,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 12:30:22,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 12:30:22,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 12:30:22,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 12:30:22,521 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 12:30:23,016 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 12:30:23,016 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 12:30:23,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:30:23 BoogieIcfgContainer [2020-11-12 12:30:23,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 12:30:23,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 12:30:23,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 12:30:23,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 12:30:23,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:30:21" (1/3) ... [2020-11-12 12:30:23,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5abae798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:30:23, skipping insertion in model container [2020-11-12 12:30:23,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:30:22" (2/3) ... [2020-11-12 12:30:23,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5abae798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:30:23, skipping insertion in model container [2020-11-12 12:30:23,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:30:23" (3/3) ... [2020-11-12 12:30:23,031 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_pso.opt.i [2020-11-12 12:30:23,051 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 12:30:23,051 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 12:30:23,056 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 12:30:23,057 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 12:30:23,119 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,119 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,119 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,119 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,120 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,120 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,121 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,121 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,121 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,122 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,123 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,123 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,125 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,125 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,125 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,125 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,126 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,126 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,126 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,126 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,127 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,127 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,129 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,129 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,130 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,130 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,130 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,131 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,131 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,131 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,131 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,131 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,134 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,134 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,134 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,134 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,136 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,136 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,137 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,137 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,137 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,137 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,137 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,138 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,138 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,139 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,139 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,139 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,142 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,142 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,143 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,143 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,158 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,158 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,158 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,158 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,161 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,161 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,161 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,162 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,164 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,165 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,165 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,165 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 12:30:23,167 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 12:30:23,181 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-12 12:30:23,207 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 12:30:23,207 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 12:30:23,207 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 12:30:23,207 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 12:30:23,207 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 12:30:23,208 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 12:30:23,208 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 12:30:23,208 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 12:30:23,222 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 105 places, 95 transitions, 210 flow [2020-11-12 12:30:36,775 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 73649 states, 73647 states have (on average 4.471315871658044) internal successors, (329299), 73648 states have internal predecessors, (329299), 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) [2020-11-12 12:30:40,841 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 4061ms [2020-11-12 12:30:40,981 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 73649 states, 73647 states have (on average 4.471315871658044) internal successors, (329299), 73648 states have internal predecessors, (329299), 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) [2020-11-12 12:30:41,531 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 300908 states, 276860 states have (on average 1.2397998988658527) internal successors, (343251), 300907 states have internal predecessors, (343251), 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) [2020-11-12 12:30:41,738 INFO L276 IsEmpty]: Start isEmpty. Operand has 300908 states, 276860 states have (on average 1.2397998988658527) internal successors, (343251), 300907 states have internal predecessors, (343251), 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) [2020-11-12 12:30:41,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-12 12:30:41,825 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:30:41,826 INFO L494 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] [2020-11-12 12:30:41,827 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:30:41,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:30:41,834 INFO L82 PathProgramCache]: Analyzing trace with hash 207288984, now seen corresponding path program 1 times [2020-11-12 12:30:41,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:30:41,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750618486] [2020-11-12 12:30:41,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:30:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:30:42,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:30:42,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750618486] [2020-11-12 12:30:42,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:30:42,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:30:42,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38477783] [2020-11-12 12:30:42,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:30:42,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:30:42,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:30:42,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:30:42,481 INFO L87 Difference]: Start difference. First operand has 300908 states, 276860 states have (on average 1.2397998988658527) internal successors, (343251), 300907 states have internal predecessors, (343251), 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 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) [2020-11-12 12:30:43,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:30:43,799 INFO L93 Difference]: Finished difference Result 127167 states and 154283 transitions. [2020-11-12 12:30:43,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 12:30:43,801 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 [2020-11-12 12:30:43,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:30:43,999 INFO L225 Difference]: With dead ends: 127167 [2020-11-12 12:30:43,999 INFO L226 Difference]: Without dead ends: 31115 [2020-11-12 12:30:44,001 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 12:30:44,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31115 states. [2020-11-12 12:30:45,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31115 to 31115. [2020-11-12 12:30:45,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31115 states, 29400 states have (on average 1.3991496598639457) internal successors, (41135), 31114 states have internal predecessors, (41135), 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) [2020-11-12 12:30:45,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31115 states to 31115 states and 41135 transitions. [2020-11-12 12:30:45,626 INFO L78 Accepts]: Start accepts. Automaton has 31115 states and 41135 transitions. Word has length 49 [2020-11-12 12:30:45,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:30:45,627 INFO L481 AbstractCegarLoop]: Abstraction has 31115 states and 41135 transitions. [2020-11-12 12:30:45,628 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) [2020-11-12 12:30:45,628 INFO L276 IsEmpty]: Start isEmpty. Operand 31115 states and 41135 transitions. [2020-11-12 12:30:45,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-12 12:30:45,657 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:30:45,657 INFO L494 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] [2020-11-12 12:30:45,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 12:30:45,658 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:30:45,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:30:45,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1475547447, now seen corresponding path program 1 times [2020-11-12 12:30:45,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:30:45,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308844802] [2020-11-12 12:30:45,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:30:45,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:30:45,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:30:45,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308844802] [2020-11-12 12:30:45,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:30:45,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:30:45,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475631296] [2020-11-12 12:30:45,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:30:45,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:30:45,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:30:45,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:30:45,909 INFO L87 Difference]: Start difference. First operand 31115 states and 41135 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:30:46,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:30:46,232 INFO L93 Difference]: Finished difference Result 32300 states and 42980 transitions. [2020-11-12 12:30:46,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-12 12:30:46,232 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2020-11-12 12:30:46,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:30:46,292 INFO L225 Difference]: With dead ends: 32300 [2020-11-12 12:30:46,292 INFO L226 Difference]: Without dead ends: 21912 [2020-11-12 12:30:46,295 INFO L749 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 [2020-11-12 12:30:46,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21912 states. [2020-11-12 12:30:47,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21912 to 21912. [2020-11-12 12:30:47,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21912 states, 20687 states have (on average 1.3597428336636534) internal successors, (28129), 21911 states have internal predecessors, (28129), 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) [2020-11-12 12:30:47,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21912 states to 21912 states and 28129 transitions. [2020-11-12 12:30:47,148 INFO L78 Accepts]: Start accepts. Automaton has 21912 states and 28129 transitions. Word has length 51 [2020-11-12 12:30:47,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:30:47,149 INFO L481 AbstractCegarLoop]: Abstraction has 21912 states and 28129 transitions. [2020-11-12 12:30:47,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:30:47,149 INFO L276 IsEmpty]: Start isEmpty. Operand 21912 states and 28129 transitions. [2020-11-12 12:30:47,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-12 12:30:47,175 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:30:47,176 INFO L494 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] [2020-11-12 12:30:47,176 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 12:30:47,176 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:30:47,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:30:47,179 INFO L82 PathProgramCache]: Analyzing trace with hash 172190166, now seen corresponding path program 1 times [2020-11-12 12:30:47,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:30:47,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983058874] [2020-11-12 12:30:47,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:30:47,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:30:47,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:30:47,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983058874] [2020-11-12 12:30:47,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:30:47,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 12:30:47,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179273340] [2020-11-12 12:30:47,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 12:30:47,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:30:47,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 12:30:47,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 12:30:47,332 INFO L87 Difference]: Start difference. First operand 21912 states and 28129 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:30:47,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:30:47,503 INFO L93 Difference]: Finished difference Result 21537 states and 26879 transitions. [2020-11-12 12:30:47,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-12 12:30:47,504 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2020-11-12 12:30:47,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:30:47,526 INFO L225 Difference]: With dead ends: 21537 [2020-11-12 12:30:47,526 INFO L226 Difference]: Without dead ends: 15922 [2020-11-12 12:30:47,527 INFO L749 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 [2020-11-12 12:30:47,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15922 states. [2020-11-12 12:30:47,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15922 to 15922. [2020-11-12 12:30:47,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15922 states, 15047 states have (on average 1.3300990230610752) internal successors, (20014), 15921 states have internal predecessors, (20014), 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) [2020-11-12 12:30:48,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15922 states to 15922 states and 20014 transitions. [2020-11-12 12:30:48,229 INFO L78 Accepts]: Start accepts. Automaton has 15922 states and 20014 transitions. Word has length 53 [2020-11-12 12:30:48,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:30:48,234 INFO L481 AbstractCegarLoop]: Abstraction has 15922 states and 20014 transitions. [2020-11-12 12:30:48,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:30:48,234 INFO L276 IsEmpty]: Start isEmpty. Operand 15922 states and 20014 transitions. [2020-11-12 12:30:48,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-12 12:30:48,255 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:30:48,256 INFO L494 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] [2020-11-12 12:30:48,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 12:30:48,257 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:30:48,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:30:48,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1705817035, now seen corresponding path program 1 times [2020-11-12 12:30:48,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:30:48,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349443147] [2020-11-12 12:30:48,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:30:48,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:30:48,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:30:48,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349443147] [2020-11-12 12:30:48,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:30:48,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:30:48,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729340089] [2020-11-12 12:30:48,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:30:48,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:30:48,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:30:48,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:30:48,464 INFO L87 Difference]: Start difference. First operand 15922 states and 20014 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:30:48,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:30:48,723 INFO L93 Difference]: Finished difference Result 20492 states and 26271 transitions. [2020-11-12 12:30:48,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:30:48,723 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 [2020-11-12 12:30:48,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:30:48,737 INFO L225 Difference]: With dead ends: 20492 [2020-11-12 12:30:48,737 INFO L226 Difference]: Without dead ends: 9009 [2020-11-12 12:30:48,738 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 12:30:48,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9009 states. [2020-11-12 12:30:48,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9009 to 9009. [2020-11-12 12:30:48,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9009 states, 8509 states have (on average 1.2839346574215535) internal successors, (10925), 9008 states have internal predecessors, (10925), 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) [2020-11-12 12:30:48,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9009 states to 9009 states and 10925 transitions. [2020-11-12 12:30:48,964 INFO L78 Accepts]: Start accepts. Automaton has 9009 states and 10925 transitions. Word has length 55 [2020-11-12 12:30:48,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:30:48,965 INFO L481 AbstractCegarLoop]: Abstraction has 9009 states and 10925 transitions. [2020-11-12 12:30:48,965 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) [2020-11-12 12:30:48,965 INFO L276 IsEmpty]: Start isEmpty. Operand 9009 states and 10925 transitions. [2020-11-12 12:30:48,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-11-12 12:30:48,980 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:30:48,980 INFO L494 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] [2020-11-12 12:30:48,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 12:30:48,980 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:30:48,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:30:48,981 INFO L82 PathProgramCache]: Analyzing trace with hash 375824576, now seen corresponding path program 1 times [2020-11-12 12:30:48,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:30:48,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784394506] [2020-11-12 12:30:48,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:30:49,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:30:49,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:30:49,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784394506] [2020-11-12 12:30:49,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:30:49,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:30:49,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619259322] [2020-11-12 12:30:49,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:30:49,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:30:49,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:30:49,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:30:49,115 INFO L87 Difference]: Start difference. First operand 9009 states and 10925 transitions. 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) [2020-11-12 12:30:49,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:30:49,320 INFO L93 Difference]: Finished difference Result 13350 states and 16436 transitions. [2020-11-12 12:30:49,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:30:49,320 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 [2020-11-12 12:30:49,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:30:49,331 INFO L225 Difference]: With dead ends: 13350 [2020-11-12 12:30:49,331 INFO L226 Difference]: Without dead ends: 6736 [2020-11-12 12:30:49,332 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 12:30:49,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6736 states. [2020-11-12 12:30:49,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6736 to 6736. [2020-11-12 12:30:49,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6736 states, 6336 states have (on average 1.2994002525252526) internal successors, (8233), 6735 states have internal predecessors, (8233), 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) [2020-11-12 12:30:49,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6736 states to 6736 states and 8233 transitions. [2020-11-12 12:30:49,492 INFO L78 Accepts]: Start accepts. Automaton has 6736 states and 8233 transitions. Word has length 58 [2020-11-12 12:30:49,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:30:49,493 INFO L481 AbstractCegarLoop]: Abstraction has 6736 states and 8233 transitions. [2020-11-12 12:30:49,493 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) [2020-11-12 12:30:49,493 INFO L276 IsEmpty]: Start isEmpty. Operand 6736 states and 8233 transitions. [2020-11-12 12:30:49,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-12 12:30:49,502 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:30:49,502 INFO L494 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] [2020-11-12 12:30:49,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 12:30:49,502 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:30:49,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:30:49,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1220317126, now seen corresponding path program 1 times [2020-11-12 12:30:49,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:30:49,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011426088] [2020-11-12 12:30:49,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:30:49,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:30:49,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:30:49,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011426088] [2020-11-12 12:30:49,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:30:49,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:30:49,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925174445] [2020-11-12 12:30:49,699 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:30:49,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:30:49,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:30:49,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:30:49,700 INFO L87 Difference]: Start difference. First operand 6736 states and 8233 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:30:49,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:30:49,899 INFO L93 Difference]: Finished difference Result 10226 states and 12710 transitions. [2020-11-12 12:30:49,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:30:49,899 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2020-11-12 12:30:49,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:30:49,911 INFO L225 Difference]: With dead ends: 10226 [2020-11-12 12:30:49,911 INFO L226 Difference]: Without dead ends: 5249 [2020-11-12 12:30:49,912 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 12:30:49,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5249 states. [2020-11-12 12:30:50,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5249 to 5249. [2020-11-12 12:30:50,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5249 states, 4929 states have (on average 1.2966118888212619) internal successors, (6391), 5248 states have internal predecessors, (6391), 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) [2020-11-12 12:30:50,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 6391 transitions. [2020-11-12 12:30:50,050 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 6391 transitions. Word has length 59 [2020-11-12 12:30:50,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:30:50,050 INFO L481 AbstractCegarLoop]: Abstraction has 5249 states and 6391 transitions. [2020-11-12 12:30:50,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:30:50,051 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 6391 transitions. [2020-11-12 12:30:50,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-11-12 12:30:50,061 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 12:30:50,061 INFO L494 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] [2020-11-12 12:30:50,061 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 12:30:50,062 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 12:30:50,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 12:30:50,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1579380312, now seen corresponding path program 1 times [2020-11-12 12:30:50,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 12:30:50,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877143412] [2020-11-12 12:30:50,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 12:30:50,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 12:30:50,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 12:30:50,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877143412] [2020-11-12 12:30:50,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 12:30:50,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 12:30:50,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958421609] [2020-11-12 12:30:50,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 12:30:50,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 12:30:50,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 12:30:50,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 12:30:50,267 INFO L87 Difference]: Start difference. First operand 5249 states and 6391 transitions. 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) [2020-11-12 12:30:50,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 12:30:50,428 INFO L93 Difference]: Finished difference Result 3969 states and 5111 transitions. [2020-11-12 12:30:50,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 12:30:50,428 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 [2020-11-12 12:30:50,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 12:30:50,429 INFO L225 Difference]: With dead ends: 3969 [2020-11-12 12:30:50,429 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 12:30:50,429 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 12:30:50,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 12:30:50,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 12:30:50,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 12:30:50,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 12:30:50,431 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2020-11-12 12:30:50,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 12:30:50,431 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 12:30:50,431 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) [2020-11-12 12:30:50,431 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 12:30:50,431 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 12:30:50,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-12 12:30:50,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:30:50 BasicIcfg [2020-11-12 12:30:50,437 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 12:30:50,440 INFO L168 Benchmark]: Toolchain (without parser) took 28861.46 ms. Allocated memory was 310.4 MB in the beginning and 9.1 GB in the end (delta: 8.8 GB). Free memory was 283.6 MB in the beginning and 7.8 GB in the end (delta: -7.5 GB). Peak memory consumption was 1.3 GB. Max. memory is 16.0 GB. [2020-11-12 12:30:50,441 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 310.4 MB. Free memory is still 281.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:30:50,442 INFO L168 Benchmark]: CACSL2BoogieTranslator took 754.02 ms. Allocated memory is still 310.4 MB. Free memory was 282.9 MB in the beginning and 283.4 MB in the end (delta: -529.3 kB). Peak memory consumption was 27.9 MB. Max. memory is 16.0 GB. [2020-11-12 12:30:50,442 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.34 ms. Allocated memory is still 310.4 MB. Free memory was 283.4 MB in the beginning and 281.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 12:30:50,443 INFO L168 Benchmark]: Boogie Preprocessor took 33.72 ms. Allocated memory is still 310.4 MB. Free memory was 281.3 MB in the beginning and 280.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 12:30:50,444 INFO L168 Benchmark]: RCFGBuilder took 590.69 ms. Allocated memory is still 310.4 MB. Free memory was 280.3 MB in the beginning and 254.1 MB in the end (delta: 26.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2020-11-12 12:30:50,445 INFO L168 Benchmark]: TraceAbstraction took 27414.16 ms. Allocated memory was 310.4 MB in the beginning and 9.1 GB in the end (delta: 8.8 GB). Free memory was 253.0 MB in the beginning and 7.8 GB in the end (delta: -7.5 GB). Peak memory consumption was 1.3 GB. Max. memory is 16.0 GB. [2020-11-12 12:30:50,449 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 310.4 MB. Free memory is still 281.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 754.02 ms. Allocated memory is still 310.4 MB. Free memory was 282.9 MB in the beginning and 283.4 MB in the end (delta: -529.3 kB). Peak memory consumption was 27.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 52.34 ms. Allocated memory is still 310.4 MB. Free memory was 283.4 MB in the beginning and 281.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 33.72 ms. Allocated memory is still 310.4 MB. Free memory was 281.3 MB in the beginning and 280.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 590.69 ms. Allocated memory is still 310.4 MB. Free memory was 280.3 MB in the beginning and 254.1 MB in the end (delta: 26.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 27414.16 ms. Allocated memory was 310.4 MB in the beginning and 9.1 GB in the end (delta: 8.8 GB). Free memory was 253.0 MB in the beginning and 7.8 GB in the end (delta: -7.5 GB). Peak memory consumption was 1.3 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 27.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 18.3s, HoareTripleCheckerStatistics: 576 SDtfs, 738 SDslu, 2091 SDs, 0 SdLazy, 150 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=300908occurred 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: 3.6s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 385 NumberOfCodeBlocks, 385 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 378 ConstructedInterpolants, 0 QuantifiedInterpolants, 58718 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...