/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/pthread-wmm/safe002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:05:34,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:05:34,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:05:34,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:05:34,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:05:34,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:05:34,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:05:34,865 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:05:34,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:05:34,869 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:05:34,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:05:34,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:05:34,872 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:05:34,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:05:34,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:05:34,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:05:34,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:05:34,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:05:34,880 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:05:34,883 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:05:34,885 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:05:34,886 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:05:34,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:05:34,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:05:34,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:05:34,915 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:05:34,916 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:05:34,917 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:05:34,918 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:05:34,919 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:05:34,919 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:05:34,920 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:05:34,921 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:05:34,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:05:34,923 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:05:34,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:05:34,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:05:34,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:05:34,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:05:34,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:05:34,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:05:34,938 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:05:34,996 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:05:34,997 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:05:35,000 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:05:35,001 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:05:35,002 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:05:35,003 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:05:35,003 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:05:35,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:05:35,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:05:35,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:05:35,005 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:05:35,005 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:05:35,006 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:05:35,006 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:05:35,006 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:05:35,006 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:05:35,006 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:05:35,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:05:35,007 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:05:35,007 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:05:35,007 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:05:35,007 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:05:35,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:05:35,008 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:05:35,008 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:05:35,008 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:05:35,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:05:35,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:05:35,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:05:35,443 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:05:35,443 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:05:35,444 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe002_tso.oepc.i [2020-12-22 11:05:35,546 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76d367ff2/ef920aa7363749e9aafb51037e121891/FLAG06ca932ce [2020-12-22 11:05:36,192 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:05:36,193 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe002_tso.oepc.i [2020-12-22 11:05:36,212 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76d367ff2/ef920aa7363749e9aafb51037e121891/FLAG06ca932ce [2020-12-22 11:05:36,434 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76d367ff2/ef920aa7363749e9aafb51037e121891 [2020-12-22 11:05:36,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:05:36,439 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:05:36,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:05:36,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:05:36,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:05:36,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:05:36" (1/1) ... [2020-12-22 11:05:36,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2834b8ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:05:36, skipping insertion in model container [2020-12-22 11:05:36,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:05:36" (1/1) ... [2020-12-22 11:05:36,485 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:05:36,557 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:05:36,735 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe002_tso.oepc.i[950,963] [2020-12-22 11:05:36,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:05:36,918 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:05:36,935 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe002_tso.oepc.i[950,963] [2020-12-22 11:05:37,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:05:37,101 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:05:37,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:05:37 WrapperNode [2020-12-22 11:05:37,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:05:37,105 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:05:37,105 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:05:37,105 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:05:37,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:05:37" (1/1) ... [2020-12-22 11:05:37,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:05:37" (1/1) ... [2020-12-22 11:05:37,214 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:05:37,215 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:05:37,215 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:05:37,215 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:05:37,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:05:37" (1/1) ... [2020-12-22 11:05:37,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:05:37" (1/1) ... [2020-12-22 11:05:37,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:05:37" (1/1) ... [2020-12-22 11:05:37,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:05:37" (1/1) ... [2020-12-22 11:05:37,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:05:37" (1/1) ... [2020-12-22 11:05:37,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:05:37" (1/1) ... [2020-12-22 11:05:37,239 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:05:37" (1/1) ... [2020-12-22 11:05:37,242 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:05:37,243 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:05:37,243 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:05:37,243 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:05:37,244 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:05:37" (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 [2020-12-22 11:05:37,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:05:37,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-22 11:05:37,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:05:37,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:05:37,348 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-22 11:05:37,348 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-22 11:05:37,348 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-22 11:05:37,349 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-22 11:05:37,349 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-22 11:05:37,350 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-22 11:05:37,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:05:37,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-22 11:05:37,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:05:37,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:05:37,355 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-22 11:05:37,694 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:05:37,695 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-22 11:05:37,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:05:37 BoogieIcfgContainer [2020-12-22 11:05:37,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:05:37,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:05:37,699 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:05:37,703 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:05:37,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:05:36" (1/3) ... [2020-12-22 11:05:37,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43823d38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:05:37, skipping insertion in model container [2020-12-22 11:05:37,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:05:37" (2/3) ... [2020-12-22 11:05:37,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43823d38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:05:37, skipping insertion in model container [2020-12-22 11:05:37,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:05:37" (3/3) ... [2020-12-22 11:05:37,706 INFO L111 eAbstractionObserver]: Analyzing ICFG safe002_tso.oepc.i [2020-12-22 11:05:37,713 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-22 11:05:37,714 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:05:37,718 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 11:05:37,719 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-22 11:05:37,765 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,765 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,766 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,766 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,766 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,766 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,767 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,767 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,768 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,768 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,768 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,768 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,769 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,769 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,769 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,769 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,770 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,770 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,770 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,770 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,771 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,771 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,771 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,772 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,772 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,772 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,772 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,773 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,773 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,773 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,773 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,773 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,774 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,774 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,775 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,775 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,778 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,778 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,778 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,778 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,783 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,784 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,787 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,787 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,787 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,787 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:05:37,789 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-22 11:05:37,808 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-22 11:05:37,829 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:05:37,830 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:05:37,830 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:05:37,830 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:05:37,830 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:05:37,830 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:05:37,831 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:05:37,831 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:05:37,844 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:05:37,847 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 75 transitions, 165 flow [2020-12-22 11:05:37,850 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 75 transitions, 165 flow [2020-12-22 11:05:37,852 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2020-12-22 11:05:37,919 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2020-12-22 11:05:37,919 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-22 11:05:37,928 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2020-12-22 11:05:37,934 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2020-12-22 11:05:40,635 WARN L197 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-12-22 11:05:40,953 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-12-22 11:05:41,058 INFO L131 LiptonReduction]: Checked pairs total: 2653 [2020-12-22 11:05:41,059 INFO L133 LiptonReduction]: Total number of compositions: 59 [2020-12-22 11:05:41,067 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-12-22 11:05:41,112 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-12-22 11:05:41,114 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-12-22 11:05:41,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 11:05:41,122 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:05:41,123 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:05:41,124 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:05:41,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:05:41,137 INFO L82 PathProgramCache]: Analyzing trace with hash -991402129, now seen corresponding path program 1 times [2020-12-22 11:05:41,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:05:41,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485384695] [2020-12-22 11:05:41,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:05:41,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:05:41,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:05:41,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485384695] [2020-12-22 11:05:41,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:05:41,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:05:41,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173747630] [2020-12-22 11:05:41,339 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 11:05:41,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:05:41,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 11:05:41,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:05:41,358 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-12-22 11:05:41,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:05:41,394 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-12-22 11:05:41,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 11:05:41,396 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-22 11:05:41,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:05:41,423 INFO L225 Difference]: With dead ends: 362 [2020-12-22 11:05:41,423 INFO L226 Difference]: Without dead ends: 298 [2020-12-22 11:05:41,425 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:05:41,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-12-22 11:05:41,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-12-22 11:05:41,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-12-22 11:05:41,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-12-22 11:05:41,503 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-12-22 11:05:41,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:05:41,505 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-12-22 11:05:41,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 11:05:41,505 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-12-22 11:05:41,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 11:05:41,507 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:05:41,507 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:05:41,507 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:05:41,507 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:05:41,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:05:41,508 INFO L82 PathProgramCache]: Analyzing trace with hash -668714259, now seen corresponding path program 1 times [2020-12-22 11:05:41,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:05:41,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159955268] [2020-12-22 11:05:41,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:05:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:05:41,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:05:41,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159955268] [2020-12-22 11:05:41,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:05:41,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:05:41,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901991037] [2020-12-22 11:05:41,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:05:41,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:05:41,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:05:41,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:05:41,767 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-12-22 11:05:41,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:05:41,819 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-12-22 11:05:41,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:05:41,821 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-22 11:05:41,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:05:41,828 INFO L225 Difference]: With dead ends: 330 [2020-12-22 11:05:41,828 INFO L226 Difference]: Without dead ends: 266 [2020-12-22 11:05:41,829 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:05:41,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-12-22 11:05:41,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-12-22 11:05:41,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-12-22 11:05:41,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-12-22 11:05:41,881 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-12-22 11:05:41,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:05:41,881 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-12-22 11:05:41,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:05:41,883 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-12-22 11:05:41,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:05:41,885 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:05:41,885 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:05:41,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:05:41,885 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:05:41,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:05:41,886 INFO L82 PathProgramCache]: Analyzing trace with hash 39953638, now seen corresponding path program 1 times [2020-12-22 11:05:41,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:05:41,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391772748] [2020-12-22 11:05:41,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:05:41,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:05:42,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:05:42,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391772748] [2020-12-22 11:05:42,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:05:42,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:05:42,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861425241] [2020-12-22 11:05:42,012 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:05:42,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:05:42,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:05:42,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:05:42,014 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 5 states. [2020-12-22 11:05:42,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:05:42,095 INFO L93 Difference]: Finished difference Result 414 states and 1086 transitions. [2020-12-22 11:05:42,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:05:42,096 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-22 11:05:42,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:05:42,099 INFO L225 Difference]: With dead ends: 414 [2020-12-22 11:05:42,099 INFO L226 Difference]: Without dead ends: 330 [2020-12-22 11:05:42,100 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:05:42,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-12-22 11:05:42,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 286. [2020-12-22 11:05:42,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-12-22 11:05:42,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 766 transitions. [2020-12-22 11:05:42,122 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 766 transitions. Word has length 10 [2020-12-22 11:05:42,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:05:42,122 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 766 transitions. [2020-12-22 11:05:42,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:05:42,122 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 766 transitions. [2020-12-22 11:05:42,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 11:05:42,131 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:05:42,131 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:05:42,131 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:05:42,131 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:05:42,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:05:42,134 INFO L82 PathProgramCache]: Analyzing trace with hash -259726332, now seen corresponding path program 1 times [2020-12-22 11:05:42,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:05:42,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286452248] [2020-12-22 11:05:42,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:05:42,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:05:42,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:05:42,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286452248] [2020-12-22 11:05:42,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:05:42,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:05:42,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472212830] [2020-12-22 11:05:42,242 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:05:42,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:05:42,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:05:42,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:05:42,244 INFO L87 Difference]: Start difference. First operand 286 states and 766 transitions. Second operand 5 states. [2020-12-22 11:05:42,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:05:42,287 INFO L93 Difference]: Finished difference Result 410 states and 1076 transitions. [2020-12-22 11:05:42,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:05:42,288 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-22 11:05:42,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:05:42,290 INFO L225 Difference]: With dead ends: 410 [2020-12-22 11:05:42,290 INFO L226 Difference]: Without dead ends: 220 [2020-12-22 11:05:42,291 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:05:42,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-12-22 11:05:42,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2020-12-22 11:05:42,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-12-22 11:05:42,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 576 transitions. [2020-12-22 11:05:42,299 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 576 transitions. Word has length 12 [2020-12-22 11:05:42,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:05:42,300 INFO L481 AbstractCegarLoop]: Abstraction has 220 states and 576 transitions. [2020-12-22 11:05:42,300 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:05:42,300 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 576 transitions. [2020-12-22 11:05:42,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 11:05:42,301 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:05:42,301 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:05:42,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 11:05:42,301 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:05:42,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:05:42,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1368326109, now seen corresponding path program 1 times [2020-12-22 11:05:42,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:05:42,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315180143] [2020-12-22 11:05:42,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:05:42,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:05:42,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:05:42,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315180143] [2020-12-22 11:05:42,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:05:42,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:05:42,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796521243] [2020-12-22 11:05:42,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:05:42,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:05:42,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:05:42,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:05:42,373 INFO L87 Difference]: Start difference. First operand 220 states and 576 transitions. Second operand 5 states. [2020-12-22 11:05:42,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:05:42,428 INFO L93 Difference]: Finished difference Result 288 states and 714 transitions. [2020-12-22 11:05:42,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:05:42,428 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-22 11:05:42,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:05:42,430 INFO L225 Difference]: With dead ends: 288 [2020-12-22 11:05:42,430 INFO L226 Difference]: Without dead ends: 212 [2020-12-22 11:05:42,431 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:05:42,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-12-22 11:05:42,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 176. [2020-12-22 11:05:42,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-12-22 11:05:42,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 440 transitions. [2020-12-22 11:05:42,438 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 440 transitions. Word has length 12 [2020-12-22 11:05:42,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:05:42,438 INFO L481 AbstractCegarLoop]: Abstraction has 176 states and 440 transitions. [2020-12-22 11:05:42,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:05:42,438 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 440 transitions. [2020-12-22 11:05:42,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 11:05:42,439 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:05:42,439 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:05:42,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 11:05:42,439 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:05:42,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:05:42,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1622661680, now seen corresponding path program 2 times [2020-12-22 11:05:42,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:05:42,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697402153] [2020-12-22 11:05:42,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:05:42,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:05:42,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:05:42,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697402153] [2020-12-22 11:05:42,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:05:42,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:05:42,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886717330] [2020-12-22 11:05:42,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:05:42,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:05:42,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:05:42,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:05:42,501 INFO L87 Difference]: Start difference. First operand 176 states and 440 transitions. Second operand 5 states. [2020-12-22 11:05:42,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:05:42,534 INFO L93 Difference]: Finished difference Result 224 states and 550 transitions. [2020-12-22 11:05:42,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:05:42,535 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-22 11:05:42,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:05:42,536 INFO L225 Difference]: With dead ends: 224 [2020-12-22 11:05:42,536 INFO L226 Difference]: Without dead ends: 116 [2020-12-22 11:05:42,537 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:05:42,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-12-22 11:05:42,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-12-22 11:05:42,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-12-22 11:05:42,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 278 transitions. [2020-12-22 11:05:42,541 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 278 transitions. Word has length 12 [2020-12-22 11:05:42,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:05:42,541 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 278 transitions. [2020-12-22 11:05:42,542 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:05:42,542 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 278 transitions. [2020-12-22 11:05:42,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 11:05:42,542 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:05:42,542 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:05:42,543 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 11:05:42,543 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:05:42,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:05:42,543 INFO L82 PathProgramCache]: Analyzing trace with hash -701864959, now seen corresponding path program 1 times [2020-12-22 11:05:42,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:05:42,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781581101] [2020-12-22 11:05:42,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:05:42,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:05:42,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:05:42,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781581101] [2020-12-22 11:05:42,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:05:42,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:05:42,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781111604] [2020-12-22 11:05:42,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:05:42,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:05:42,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:05:42,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:05:42,612 INFO L87 Difference]: Start difference. First operand 116 states and 278 transitions. Second operand 6 states. [2020-12-22 11:05:42,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:05:42,649 INFO L93 Difference]: Finished difference Result 152 states and 362 transitions. [2020-12-22 11:05:42,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:05:42,650 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-22 11:05:42,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:05:42,651 INFO L225 Difference]: With dead ends: 152 [2020-12-22 11:05:42,651 INFO L226 Difference]: Without dead ends: 80 [2020-12-22 11:05:42,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-12-22 11:05:42,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-12-22 11:05:42,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-12-22 11:05:42,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-12-22 11:05:42,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 176 transitions. [2020-12-22 11:05:42,655 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 176 transitions. Word has length 14 [2020-12-22 11:05:42,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:05:42,656 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 176 transitions. [2020-12-22 11:05:42,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:05:42,656 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 176 transitions. [2020-12-22 11:05:42,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 11:05:42,656 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:05:42,657 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:05:42,657 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 11:05:42,657 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:05:42,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:05:42,657 INFO L82 PathProgramCache]: Analyzing trace with hash -2064800307, now seen corresponding path program 2 times [2020-12-22 11:05:42,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:05:42,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763643309] [2020-12-22 11:05:42,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:05:42,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:05:42,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:05:42,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763643309] [2020-12-22 11:05:42,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:05:42,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:05:42,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960597706] [2020-12-22 11:05:42,704 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:05:42,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:05:42,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:05:42,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:05:42,705 INFO L87 Difference]: Start difference. First operand 80 states and 176 transitions. Second operand 4 states. [2020-12-22 11:05:42,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:05:42,742 INFO L93 Difference]: Finished difference Result 91 states and 181 transitions. [2020-12-22 11:05:42,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:05:42,748 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-12-22 11:05:42,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:05:42,749 INFO L225 Difference]: With dead ends: 91 [2020-12-22 11:05:42,749 INFO L226 Difference]: Without dead ends: 69 [2020-12-22 11:05:42,751 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:05:42,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-12-22 11:05:42,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-12-22 11:05:42,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-12-22 11:05:42,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 138 transitions. [2020-12-22 11:05:42,754 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 138 transitions. Word has length 14 [2020-12-22 11:05:42,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:05:42,754 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 138 transitions. [2020-12-22 11:05:42,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:05:42,755 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 138 transitions. [2020-12-22 11:05:42,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 11:05:42,755 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:05:42,755 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:05:42,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 11:05:42,756 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:05:42,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:05:42,756 INFO L82 PathProgramCache]: Analyzing trace with hash 182443752, now seen corresponding path program 1 times [2020-12-22 11:05:42,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:05:42,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975189865] [2020-12-22 11:05:42,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:05:42,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:05:42,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:05:42,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975189865] [2020-12-22 11:05:42,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:05:42,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:05:42,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680789464] [2020-12-22 11:05:42,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:05:42,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:05:42,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:05:42,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:05:42,841 INFO L87 Difference]: Start difference. First operand 69 states and 138 transitions. Second operand 5 states. [2020-12-22 11:05:42,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:05:42,879 INFO L93 Difference]: Finished difference Result 65 states and 113 transitions. [2020-12-22 11:05:42,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:05:42,880 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-12-22 11:05:42,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:05:42,881 INFO L225 Difference]: With dead ends: 65 [2020-12-22 11:05:42,881 INFO L226 Difference]: Without dead ends: 50 [2020-12-22 11:05:42,881 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:05:42,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-12-22 11:05:42,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-12-22 11:05:42,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-12-22 11:05:42,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 83 transitions. [2020-12-22 11:05:42,884 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 83 transitions. Word has length 15 [2020-12-22 11:05:42,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:05:42,884 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 83 transitions. [2020-12-22 11:05:42,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:05:42,884 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 83 transitions. [2020-12-22 11:05:42,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 11:05:42,885 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:05:42,885 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:05:42,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 11:05:42,885 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:05:42,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:05:42,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1015325315, now seen corresponding path program 1 times [2020-12-22 11:05:42,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:05:42,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956332158] [2020-12-22 11:05:42,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:05:42,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:05:42,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:05:42,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956332158] [2020-12-22 11:05:42,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:05:42,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:05:42,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297507731] [2020-12-22 11:05:42,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:05:42,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:05:42,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:05:42,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:05:42,933 INFO L87 Difference]: Start difference. First operand 50 states and 83 transitions. Second operand 6 states. [2020-12-22 11:05:42,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:05:42,973 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions. [2020-12-22 11:05:42,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:05:42,974 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-12-22 11:05:42,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:05:42,974 INFO L225 Difference]: With dead ends: 43 [2020-12-22 11:05:42,974 INFO L226 Difference]: Without dead ends: 37 [2020-12-22 11:05:42,975 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:05:42,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-22 11:05:42,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-12-22 11:05:42,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-12-22 11:05:42,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-12-22 11:05:42,977 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 16 [2020-12-22 11:05:42,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:05:42,977 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-12-22 11:05:42,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:05:42,977 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-12-22 11:05:42,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 11:05:42,978 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:05:42,978 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:05:42,978 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 11:05:42,978 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:05:42,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:05:42,979 INFO L82 PathProgramCache]: Analyzing trace with hash 719368643, now seen corresponding path program 1 times [2020-12-22 11:05:42,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:05:42,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171683906] [2020-12-22 11:05:42,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:05:42,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:05:43,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:05:43,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171683906] [2020-12-22 11:05:43,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:05:43,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:05:43,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958408978] [2020-12-22 11:05:43,047 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:05:43,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:05:43,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:05:43,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:05:43,048 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 5 states. [2020-12-22 11:05:43,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:05:43,073 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-12-22 11:05:43,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:05:43,073 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-12-22 11:05:43,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:05:43,074 INFO L225 Difference]: With dead ends: 36 [2020-12-22 11:05:43,074 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 11:05:43,074 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:05:43,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 11:05:43,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 11:05:43,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 11:05:43,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 11:05:43,075 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-12-22 11:05:43,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:05:43,075 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 11:05:43,076 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:05:43,076 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 11:05:43,076 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 11:05:43,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 11:05:43,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:05:43 BasicIcfg [2020-12-22 11:05:43,080 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 11:05:43,080 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 11:05:43,081 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 11:05:43,081 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 11:05:43,081 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:05:37" (3/4) ... [2020-12-22 11:05:43,084 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 11:05:43,091 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-22 11:05:43,092 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-22 11:05:43,092 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-22 11:05:43,096 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-22 11:05:43,097 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 11:05:43,097 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:05:43,097 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:05:43,137 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe002_tso.oepc.i-witness.graphml [2020-12-22 11:05:43,138 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 11:05:43,139 INFO L168 Benchmark]: Toolchain (without parser) took 6700.21 ms. Allocated memory was 151.0 MB in the beginning and 225.4 MB in the end (delta: 74.4 MB). Free memory was 106.2 MB in the beginning and 151.0 MB in the end (delta: -44.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 8.0 GB. [2020-12-22 11:05:43,139 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 151.0 MB. Free memory is still 124.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:05:43,140 INFO L168 Benchmark]: CACSL2BoogieTranslator took 659.83 ms. Allocated memory is still 151.0 MB. Free memory was 106.1 MB in the beginning and 103.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 5.9 MB. Max. memory is 8.0 GB. [2020-12-22 11:05:43,141 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.16 ms. Allocated memory is still 151.0 MB. Free memory was 103.1 MB in the beginning and 131.1 MB in the end (delta: -28.0 MB). Peak memory consumption was 2.8 MB. Max. memory is 8.0 GB. [2020-12-22 11:05:43,142 INFO L168 Benchmark]: Boogie Preprocessor took 27.35 ms. Allocated memory is still 151.0 MB. Free memory was 131.1 MB in the beginning and 129.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:05:43,142 INFO L168 Benchmark]: RCFGBuilder took 454.57 ms. Allocated memory is still 151.0 MB. Free memory was 129.5 MB in the beginning and 107.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:05:43,143 INFO L168 Benchmark]: TraceAbstraction took 5381.09 ms. Allocated memory was 151.0 MB in the beginning and 225.4 MB in the end (delta: 74.4 MB). Free memory was 107.0 MB in the beginning and 153.6 MB in the end (delta: -46.6 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. [2020-12-22 11:05:43,144 INFO L168 Benchmark]: Witness Printer took 57.20 ms. Allocated memory is still 225.4 MB. Free memory was 153.6 MB in the beginning and 151.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:05:43,148 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 151.0 MB. Free memory is still 124.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 659.83 ms. Allocated memory is still 151.0 MB. Free memory was 106.1 MB in the beginning and 103.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 5.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 109.16 ms. Allocated memory is still 151.0 MB. Free memory was 103.1 MB in the beginning and 131.1 MB in the end (delta: -28.0 MB). Peak memory consumption was 2.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 27.35 ms. Allocated memory is still 151.0 MB. Free memory was 131.1 MB in the beginning and 129.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 454.57 ms. Allocated memory is still 151.0 MB. Free memory was 129.5 MB in the beginning and 107.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5381.09 ms. Allocated memory was 151.0 MB in the beginning and 225.4 MB in the end (delta: 74.4 MB). Free memory was 107.0 MB in the beginning and 153.6 MB in the end (delta: -46.6 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. * Witness Printer took 57.20 ms. Allocated memory is still 225.4 MB. Free memory was 153.6 MB in the beginning and 151.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 722 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 54 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.2s, 83 PlacesBefore, 32 PlacesAfterwards, 75 TransitionsBefore, 23 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 59 TotalNumberOfCompositions, 2653 MoverChecksTotal - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.2s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 243 SDtfs, 230 SDslu, 383 SDs, 0 SdLazy, 192 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 80 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 129 ConstructedInterpolants, 0 QuantifiedInterpolants, 6931 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...