/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/safe009_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:07:20,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:07:20,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:07:20,347 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:07:20,348 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:07:20,349 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:07:20,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:07:20,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:07:20,359 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:07:20,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:07:20,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:07:20,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:07:20,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:07:20,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:07:20,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:07:20,372 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:07:20,373 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:07:20,374 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:07:20,377 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:07:20,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:07:20,419 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:07:20,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:07:20,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:07:20,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:07:20,450 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 11:07:20,465 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:07:20,466 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:07:20,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:07:20,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:07:20,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:07:20,473 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:07:20,474 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:07:20,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:07:20,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:07:20,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:07:20,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:07:20,478 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:07:20,506 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:07:20,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:07:20,509 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:07:20,509 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:07:20,509 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:07:20,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:07:20,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:07:20,510 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:07:20,510 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:07:20,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:07:20,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:07:20,511 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:07:20,511 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:07:20,512 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:07:20,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:07:20,512 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:07:20,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:07:20,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:07:20,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:07:20,514 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:07:20,514 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:07:20,514 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:07:20,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:07:20,515 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:07:20,515 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:07:20,515 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:07:20,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:07:20,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:07:20,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:07:20,954 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:07:20,955 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:07:20,956 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe009_pso.oepc.i [2020-12-22 11:07:21,041 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36524fe55/225bc254aa784cb794e1d42f294acae1/FLAG750ee62d6 [2020-12-22 11:07:21,753 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:07:21,754 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe009_pso.oepc.i [2020-12-22 11:07:21,789 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36524fe55/225bc254aa784cb794e1d42f294acae1/FLAG750ee62d6 [2020-12-22 11:07:21,996 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36524fe55/225bc254aa784cb794e1d42f294acae1 [2020-12-22 11:07:21,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:07:22,001 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:07:22,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:07:22,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:07:22,009 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:07:22,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:07:21" (1/1) ... [2020-12-22 11:07:22,014 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11331a45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:22, skipping insertion in model container [2020-12-22 11:07:22,014 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:07:21" (1/1) ... [2020-12-22 11:07:22,024 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:07:22,104 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:07:22,281 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/safe009_pso.oepc.i[950,963] [2020-12-22 11:07:22,529 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:07:22,540 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:07:22,559 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/safe009_pso.oepc.i[950,963] [2020-12-22 11:07:22,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:07:22,772 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:07:22,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:22 WrapperNode [2020-12-22 11:07:22,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:07:22,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:07:22,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:07:22,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:07:22,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:22" (1/1) ... [2020-12-22 11:07:22,825 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:22" (1/1) ... [2020-12-22 11:07:22,865 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:07:22,869 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:07:22,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:07:22,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:07:22,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:22" (1/1) ... [2020-12-22 11:07:22,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:22" (1/1) ... [2020-12-22 11:07:22,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:22" (1/1) ... [2020-12-22 11:07:22,888 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:22" (1/1) ... [2020-12-22 11:07:22,895 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:22" (1/1) ... [2020-12-22 11:07:22,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:22" (1/1) ... [2020-12-22 11:07:22,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:22" (1/1) ... [2020-12-22 11:07:22,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:07:22,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:07:22,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:07:22,906 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:07:22,907 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:22" (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 [2020-12-22 11:07:23,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:07:23,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-22 11:07:23,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:07:23,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:07:23,029 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-22 11:07:23,029 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-22 11:07:23,029 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-22 11:07:23,029 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-22 11:07:23,029 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-22 11:07:23,030 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-22 11:07:23,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:07:23,030 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-22 11:07:23,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:07:23,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:07:23,032 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 11:07:23,445 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:07:23,445 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-22 11:07:23,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:07:23 BoogieIcfgContainer [2020-12-22 11:07:23,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:07:23,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:07:23,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:07:23,458 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:07:23,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:07:21" (1/3) ... [2020-12-22 11:07:23,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a650845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:07:23, skipping insertion in model container [2020-12-22 11:07:23,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:22" (2/3) ... [2020-12-22 11:07:23,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a650845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:07:23, skipping insertion in model container [2020-12-22 11:07:23,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:07:23" (3/3) ... [2020-12-22 11:07:23,463 INFO L111 eAbstractionObserver]: Analyzing ICFG safe009_pso.oepc.i [2020-12-22 11:07:23,477 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-22 11:07:23,477 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:07:23,484 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 11:07:23,485 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-22 11:07:23,549 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,549 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,550 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,550 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,551 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,552 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,552 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,552 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,553 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,553 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,553 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,554 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,555 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,556 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,556 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,556 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,557 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,557 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,557 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,557 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,558 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,558 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,559 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,559 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,559 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,560 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,560 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,560 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,564 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,565 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,565 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,565 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,567 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,567 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,568 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,582 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,585 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,586 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,586 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,587 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,592 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,593 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,593 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,593 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,595 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,596 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,596 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,596 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:23,598 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-22 11:07:23,624 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-22 11:07:23,656 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:07:23,656 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:07:23,657 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:07:23,657 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:07:23,657 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:07:23,657 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:07:23,658 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:07:23,658 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:07:23,674 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:07:23,677 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 73 transitions, 161 flow [2020-12-22 11:07:23,681 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 73 transitions, 161 flow [2020-12-22 11:07:23,684 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 73 transitions, 161 flow [2020-12-22 11:07:23,744 INFO L129 PetriNetUnfolder]: 2/70 cut-off events. [2020-12-22 11:07:23,745 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-22 11:07:23,750 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 2/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-12-22 11:07:23,754 INFO L116 LiptonReduction]: Number of co-enabled transitions 1220 [2020-12-22 11:07:26,081 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-12-22 11:07:26,363 WARN L197 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-12-22 11:07:26,537 INFO L131 LiptonReduction]: Checked pairs total: 2044 [2020-12-22 11:07:26,537 INFO L133 LiptonReduction]: Total number of compositions: 61 [2020-12-22 11:07:26,548 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-12-22 11:07:26,593 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 282 states. [2020-12-22 11:07:26,595 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states. [2020-12-22 11:07:26,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 11:07:26,605 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:26,606 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:26,606 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:26,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:26,621 INFO L82 PathProgramCache]: Analyzing trace with hash 622846231, now seen corresponding path program 1 times [2020-12-22 11:07:26,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:26,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696898919] [2020-12-22 11:07:26,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:26,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:26,870 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 11:07:26,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696898919] [2020-12-22 11:07:26,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:26,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:07:26,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325430755] [2020-12-22 11:07:26,877 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 11:07:26,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:26,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 11:07:26,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:07:26,896 INFO L87 Difference]: Start difference. First operand 282 states. Second operand 2 states. [2020-12-22 11:07:26,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:26,927 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-12-22 11:07:26,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 11:07:26,929 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-22 11:07:26,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:26,946 INFO L225 Difference]: With dead ends: 282 [2020-12-22 11:07:26,947 INFO L226 Difference]: Without dead ends: 234 [2020-12-22 11:07:26,948 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 11:07:26,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-12-22 11:07:27,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2020-12-22 11:07:27,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-12-22 11:07:27,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 656 transitions. [2020-12-22 11:07:27,024 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 656 transitions. Word has length 8 [2020-12-22 11:07:27,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:27,025 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 656 transitions. [2020-12-22 11:07:27,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 11:07:27,026 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 656 transitions. [2020-12-22 11:07:27,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 11:07:27,028 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:27,028 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:27,028 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:07:27,028 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:27,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:27,029 INFO L82 PathProgramCache]: Analyzing trace with hash 2128318799, now seen corresponding path program 1 times [2020-12-22 11:07:27,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:27,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069042049] [2020-12-22 11:07:27,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:27,255 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 11:07:27,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069042049] [2020-12-22 11:07:27,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:27,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:07:27,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427093862] [2020-12-22 11:07:27,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:07:27,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:27,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:07:27,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:07:27,262 INFO L87 Difference]: Start difference. First operand 234 states and 656 transitions. Second operand 4 states. [2020-12-22 11:07:27,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:27,333 INFO L93 Difference]: Finished difference Result 402 states and 1050 transitions. [2020-12-22 11:07:27,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:07:27,334 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-22 11:07:27,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:27,341 INFO L225 Difference]: With dead ends: 402 [2020-12-22 11:07:27,344 INFO L226 Difference]: Without dead ends: 308 [2020-12-22 11:07:27,344 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 11:07:27,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2020-12-22 11:07:27,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 264. [2020-12-22 11:07:27,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-12-22 11:07:27,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 712 transitions. [2020-12-22 11:07:27,403 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 712 transitions. Word has length 9 [2020-12-22 11:07:27,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:27,404 INFO L481 AbstractCegarLoop]: Abstraction has 264 states and 712 transitions. [2020-12-22 11:07:27,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:07:27,404 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 712 transitions. [2020-12-22 11:07:27,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:07:27,407 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:27,408 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:27,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:07:27,408 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:27,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:27,409 INFO L82 PathProgramCache]: Analyzing trace with hash 503221834, now seen corresponding path program 1 times [2020-12-22 11:07:27,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:27,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125755695] [2020-12-22 11:07:27,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:27,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:27,518 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 11:07:27,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125755695] [2020-12-22 11:07:27,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:27,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:07:27,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231967512] [2020-12-22 11:07:27,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:07:27,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:27,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:07:27,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:07:27,522 INFO L87 Difference]: Start difference. First operand 264 states and 712 transitions. Second operand 5 states. [2020-12-22 11:07:27,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:27,579 INFO L93 Difference]: Finished difference Result 345 states and 864 transitions. [2020-12-22 11:07:27,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:07:27,579 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-22 11:07:27,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:27,583 INFO L225 Difference]: With dead ends: 345 [2020-12-22 11:07:27,583 INFO L226 Difference]: Without dead ends: 278 [2020-12-22 11:07:27,583 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 11:07:27,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-12-22 11:07:27,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 246. [2020-12-22 11:07:27,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-12-22 11:07:27,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 648 transitions. [2020-12-22 11:07:27,600 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 648 transitions. Word has length 10 [2020-12-22 11:07:27,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:27,601 INFO L481 AbstractCegarLoop]: Abstraction has 246 states and 648 transitions. [2020-12-22 11:07:27,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:07:27,601 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 648 transitions. [2020-12-22 11:07:27,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:07:27,603 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:27,603 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:27,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:07:27,603 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:27,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:27,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1553300282, now seen corresponding path program 1 times [2020-12-22 11:07:27,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:27,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181357230] [2020-12-22 11:07:27,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:27,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:27,730 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 11:07:27,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181357230] [2020-12-22 11:07:27,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:27,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:07:27,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090608124] [2020-12-22 11:07:27,732 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:07:27,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:27,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:07:27,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:07:27,733 INFO L87 Difference]: Start difference. First operand 246 states and 648 transitions. Second operand 5 states. [2020-12-22 11:07:27,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:27,782 INFO L93 Difference]: Finished difference Result 298 states and 740 transitions. [2020-12-22 11:07:27,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:07:27,783 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-22 11:07:27,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:27,787 INFO L225 Difference]: With dead ends: 298 [2020-12-22 11:07:27,787 INFO L226 Difference]: Without dead ends: 254 [2020-12-22 11:07:27,788 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 11:07:27,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-12-22 11:07:27,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 222. [2020-12-22 11:07:27,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-12-22 11:07:27,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 576 transitions. [2020-12-22 11:07:27,801 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 576 transitions. Word has length 10 [2020-12-22 11:07:27,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:27,801 INFO L481 AbstractCegarLoop]: Abstraction has 222 states and 576 transitions. [2020-12-22 11:07:27,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:07:27,802 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 576 transitions. [2020-12-22 11:07:27,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 11:07:27,804 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:27,804 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:27,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 11:07:27,804 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:27,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:27,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1580065377, now seen corresponding path program 1 times [2020-12-22 11:07:27,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:27,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351630589] [2020-12-22 11:07:27,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:27,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:27,868 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 11:07:27,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351630589] [2020-12-22 11:07:27,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:27,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:07:27,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645861516] [2020-12-22 11:07:27,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:07:27,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:27,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:07:27,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:07:27,872 INFO L87 Difference]: Start difference. First operand 222 states and 576 transitions. Second operand 5 states. [2020-12-22 11:07:27,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:27,910 INFO L93 Difference]: Finished difference Result 266 states and 662 transitions. [2020-12-22 11:07:27,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:07:27,910 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-12-22 11:07:27,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:27,913 INFO L225 Difference]: With dead ends: 266 [2020-12-22 11:07:27,913 INFO L226 Difference]: Without dead ends: 242 [2020-12-22 11:07:27,913 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 11:07:27,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-12-22 11:07:27,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 210. [2020-12-22 11:07:27,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-12-22 11:07:27,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 538 transitions. [2020-12-22 11:07:27,922 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 538 transitions. Word has length 11 [2020-12-22 11:07:27,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:27,923 INFO L481 AbstractCegarLoop]: Abstraction has 210 states and 538 transitions. [2020-12-22 11:07:27,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:07:27,923 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 538 transitions. [2020-12-22 11:07:27,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 11:07:27,925 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:27,925 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:27,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 11:07:27,925 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:27,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:27,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1430850506, now seen corresponding path program 1 times [2020-12-22 11:07:27,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:27,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190888754] [2020-12-22 11:07:27,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:27,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:28,029 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 11:07:28,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190888754] [2020-12-22 11:07:28,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:28,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:07:28,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475971925] [2020-12-22 11:07:28,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:07:28,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:28,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:07:28,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:07:28,032 INFO L87 Difference]: Start difference. First operand 210 states and 538 transitions. Second operand 6 states. [2020-12-22 11:07:28,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:28,075 INFO L93 Difference]: Finished difference Result 300 states and 745 transitions. [2020-12-22 11:07:28,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:07:28,075 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-12-22 11:07:28,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:28,077 INFO L225 Difference]: With dead ends: 300 [2020-12-22 11:07:28,077 INFO L226 Difference]: Without dead ends: 180 [2020-12-22 11:07:28,078 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 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 11:07:28,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-12-22 11:07:28,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 156. [2020-12-22 11:07:28,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-12-22 11:07:28,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 390 transitions. [2020-12-22 11:07:28,085 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 390 transitions. Word has length 12 [2020-12-22 11:07:28,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:28,086 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 390 transitions. [2020-12-22 11:07:28,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:07:28,086 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 390 transitions. [2020-12-22 11:07:28,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 11:07:28,087 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:28,087 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:28,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 11:07:28,087 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:28,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:28,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1400741867, now seen corresponding path program 1 times [2020-12-22 11:07:28,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:28,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837569359] [2020-12-22 11:07:28,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:28,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:28,149 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 11:07:28,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837569359] [2020-12-22 11:07:28,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:28,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:07:28,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108381697] [2020-12-22 11:07:28,151 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:07:28,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:28,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:07:28,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:07:28,153 INFO L87 Difference]: Start difference. First operand 156 states and 390 transitions. Second operand 5 states. [2020-12-22 11:07:28,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:28,196 INFO L93 Difference]: Finished difference Result 254 states and 611 transitions. [2020-12-22 11:07:28,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:07:28,197 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-22 11:07:28,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:28,199 INFO L225 Difference]: With dead ends: 254 [2020-12-22 11:07:28,199 INFO L226 Difference]: Without dead ends: 144 [2020-12-22 11:07:28,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 11:07:28,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-12-22 11:07:28,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 120. [2020-12-22 11:07:28,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-12-22 11:07:28,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 282 transitions. [2020-12-22 11:07:28,206 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 282 transitions. Word has length 12 [2020-12-22 11:07:28,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:28,207 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 282 transitions. [2020-12-22 11:07:28,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:07:28,207 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 282 transitions. [2020-12-22 11:07:28,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 11:07:28,208 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:28,208 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:28,208 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 11:07:28,208 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:28,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:28,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1013965314, now seen corresponding path program 2 times [2020-12-22 11:07:28,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:28,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450114496] [2020-12-22 11:07:28,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:28,263 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 11:07:28,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450114496] [2020-12-22 11:07:28,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:28,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:07:28,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761038522] [2020-12-22 11:07:28,265 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:07:28,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:28,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:07:28,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:07:28,266 INFO L87 Difference]: Start difference. First operand 120 states and 282 transitions. Second operand 5 states. [2020-12-22 11:07:28,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:28,300 INFO L93 Difference]: Finished difference Result 134 states and 299 transitions. [2020-12-22 11:07:28,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:07:28,300 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-22 11:07:28,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:28,301 INFO L225 Difference]: With dead ends: 134 [2020-12-22 11:07:28,301 INFO L226 Difference]: Without dead ends: 56 [2020-12-22 11:07:28,302 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 11:07:28,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-12-22 11:07:28,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-12-22 11:07:28,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-12-22 11:07:28,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 113 transitions. [2020-12-22 11:07:28,305 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 113 transitions. Word has length 12 [2020-12-22 11:07:28,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:28,305 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 113 transitions. [2020-12-22 11:07:28,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:07:28,305 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 113 transitions. [2020-12-22 11:07:28,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 11:07:28,306 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:28,306 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:28,306 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 11:07:28,306 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:28,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:28,307 INFO L82 PathProgramCache]: Analyzing trace with hash 776645246, now seen corresponding path program 1 times [2020-12-22 11:07:28,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:28,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862523693] [2020-12-22 11:07:28,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:28,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:28,358 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 11:07:28,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862523693] [2020-12-22 11:07:28,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:28,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:07:28,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765954182] [2020-12-22 11:07:28,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:07:28,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:28,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:07:28,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:07:28,360 INFO L87 Difference]: Start difference. First operand 56 states and 113 transitions. Second operand 4 states. [2020-12-22 11:07:28,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:28,378 INFO L93 Difference]: Finished difference Result 58 states and 102 transitions. [2020-12-22 11:07:28,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:07:28,379 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-12-22 11:07:28,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:28,379 INFO L225 Difference]: With dead ends: 58 [2020-12-22 11:07:28,380 INFO L226 Difference]: Without dead ends: 45 [2020-12-22 11:07:28,380 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 11:07:28,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-12-22 11:07:28,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-12-22 11:07:28,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-12-22 11:07:28,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 78 transitions. [2020-12-22 11:07:28,382 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 78 transitions. Word has length 13 [2020-12-22 11:07:28,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:28,383 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 78 transitions. [2020-12-22 11:07:28,383 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:07:28,383 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 78 transitions. [2020-12-22 11:07:28,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 11:07:28,383 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:28,384 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:28,384 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 11:07:28,384 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:28,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:28,384 INFO L82 PathProgramCache]: Analyzing trace with hash -809970744, now seen corresponding path program 1 times [2020-12-22 11:07:28,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:28,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041602506] [2020-12-22 11:07:28,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:28,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:28,441 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 11:07:28,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041602506] [2020-12-22 11:07:28,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:28,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:07:28,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110265322] [2020-12-22 11:07:28,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:07:28,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:28,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:07:28,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:07:28,444 INFO L87 Difference]: Start difference. First operand 45 states and 78 transitions. Second operand 5 states. [2020-12-22 11:07:28,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:28,471 INFO L93 Difference]: Finished difference Result 35 states and 51 transitions. [2020-12-22 11:07:28,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:07:28,471 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-12-22 11:07:28,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:28,472 INFO L225 Difference]: With dead ends: 35 [2020-12-22 11:07:28,472 INFO L226 Difference]: Without dead ends: 27 [2020-12-22 11:07:28,472 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 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 11:07:28,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-12-22 11:07:28,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-12-22 11:07:28,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-12-22 11:07:28,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2020-12-22 11:07:28,474 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 14 [2020-12-22 11:07:28,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:28,475 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-12-22 11:07:28,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:07:28,475 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2020-12-22 11:07:28,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 11:07:28,475 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:28,476 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:28,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 11:07:28,476 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:28,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:28,476 INFO L82 PathProgramCache]: Analyzing trace with hash -145595207, now seen corresponding path program 1 times [2020-12-22 11:07:28,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:28,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950086225] [2020-12-22 11:07:28,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:28,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:28,526 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 11:07:28,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950086225] [2020-12-22 11:07:28,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:28,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:07:28,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601977554] [2020-12-22 11:07:28,527 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:07:28,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:28,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:07:28,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:07:28,528 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand 6 states. [2020-12-22 11:07:28,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:28,559 INFO L93 Difference]: Finished difference Result 21 states and 28 transitions. [2020-12-22 11:07:28,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:07:28,559 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-12-22 11:07:28,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:28,560 INFO L225 Difference]: With dead ends: 21 [2020-12-22 11:07:28,560 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 11:07:28,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-12-22 11:07:28,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 11:07:28,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 11:07:28,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 11:07:28,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 11:07:28,561 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-12-22 11:07:28,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:28,562 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 11:07:28,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:07:28,562 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 11:07:28,562 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 11:07:28,562 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 11:07:28,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:07:28 BasicIcfg [2020-12-22 11:07:28,566 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 11:07:28,567 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 11:07:28,567 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 11:07:28,567 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 11:07:28,567 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:07:23" (3/4) ... [2020-12-22 11:07:28,571 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 11:07:28,579 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-22 11:07:28,579 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-22 11:07:28,579 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-22 11:07:28,584 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-22 11:07:28,585 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 11:07:28,585 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:07:28,585 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:07:28,659 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe009_pso.oepc.i-witness.graphml [2020-12-22 11:07:28,659 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 11:07:28,661 INFO L168 Benchmark]: Toolchain (without parser) took 6659.50 ms. Allocated memory was 154.1 MB in the beginning and 238.0 MB in the end (delta: 83.9 MB). Free memory was 133.6 MB in the beginning and 91.9 MB in the end (delta: 41.6 MB). Peak memory consumption was 126.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:28,665 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 154.1 MB. Free memory is still 126.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:07:28,665 INFO L168 Benchmark]: CACSL2BoogieTranslator took 770.44 ms. Allocated memory is still 154.1 MB. Free memory was 133.3 MB in the beginning and 117.5 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:28,666 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.53 ms. Allocated memory is still 154.1 MB. Free memory was 117.5 MB in the beginning and 115.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:28,666 INFO L168 Benchmark]: Boogie Preprocessor took 35.14 ms. Allocated memory is still 154.1 MB. Free memory was 115.7 MB in the beginning and 114.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:28,667 INFO L168 Benchmark]: RCFGBuilder took 543.81 ms. Allocated memory is still 154.1 MB. Free memory was 114.4 MB in the beginning and 92.6 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:28,668 INFO L168 Benchmark]: TraceAbstraction took 5112.46 ms. Allocated memory was 154.1 MB in the beginning and 238.0 MB in the end (delta: 83.9 MB). Free memory was 92.4 MB in the beginning and 95.1 MB in the end (delta: -2.7 MB). Peak memory consumption was 81.9 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:28,668 INFO L168 Benchmark]: Witness Printer took 92.67 ms. Allocated memory is still 238.0 MB. Free memory was 94.6 MB in the beginning and 91.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:28,671 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 154.1 MB. Free memory is still 126.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 770.44 ms. Allocated memory is still 154.1 MB. Free memory was 133.3 MB in the beginning and 117.5 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 93.53 ms. Allocated memory is still 154.1 MB. Free memory was 117.5 MB in the beginning and 115.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.14 ms. Allocated memory is still 154.1 MB. Free memory was 115.7 MB in the beginning and 114.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 543.81 ms. Allocated memory is still 154.1 MB. Free memory was 114.4 MB in the beginning and 92.6 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5112.46 ms. Allocated memory was 154.1 MB in the beginning and 238.0 MB in the end (delta: 83.9 MB). Free memory was 92.4 MB in the beginning and 95.1 MB in the end (delta: -2.7 MB). Peak memory consumption was 81.9 MB. Max. memory is 8.0 GB. * Witness Printer took 92.67 ms. Allocated memory is still 238.0 MB. Free memory was 94.6 MB in the beginning and 91.9 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 799 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 65 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.8s, 81 PlacesBefore, 31 PlacesAfterwards, 73 TransitionsBefore, 22 TransitionsAfterwards, 1220 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 61 TotalNumberOfCompositions, 2044 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, 72 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.9s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 236 SDtfs, 261 SDslu, 362 SDs, 0 SdLazy, 136 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=282occurred 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, 188 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 115 ConstructedInterpolants, 0 QuantifiedInterpolants, 5242 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...