/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/safe025_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:11:50,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:11:50,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:11:50,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:11:50,449 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:11:50,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:11:50,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:11:50,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:11:50,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:11:50,459 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:11:50,460 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:11:50,461 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:11:50,462 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:11:50,463 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:11:50,465 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:11:50,466 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:11:50,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:11:50,481 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:11:50,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:11:50,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:11:50,488 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:11:50,490 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:11:50,491 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:11:50,492 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:11:50,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:11:50,496 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:11:50,496 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:11:50,498 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:11:50,498 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:11:50,499 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:11:50,500 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:11:50,501 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:11:50,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:11:50,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:11:50,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:11:50,504 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:11:50,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:11:50,506 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:11:50,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:11:50,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:11:50,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:11:50,509 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:11:50,538 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:11:50,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:11:50,540 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:11:50,540 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:11:50,541 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:11:50,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:11:50,541 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:11:50,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:11:50,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:11:50,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:11:50,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:11:50,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:11:50,543 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:11:50,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:11:50,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:11:50,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:11:50,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:11:50,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:11:50,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:11:50,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:11:50,545 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:11:50,546 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:11:50,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:11:50,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:11:50,546 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:11:50,546 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:11:50,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:11:50,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:11:50,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:11:50,975 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:11:50,976 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:11:50,977 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe025_pso.oepc.i [2020-12-22 11:11:51,056 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a1e926b1/d8ad9934609c4b9fb31c2d4b3bdefbb0/FLAG8b3649590 [2020-12-22 11:11:51,775 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:11:51,776 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe025_pso.oepc.i [2020-12-22 11:11:51,796 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a1e926b1/d8ad9934609c4b9fb31c2d4b3bdefbb0/FLAG8b3649590 [2020-12-22 11:11:52,060 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a1e926b1/d8ad9934609c4b9fb31c2d4b3bdefbb0 [2020-12-22 11:11:52,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:11:52,072 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:11:52,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:11:52,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:11:52,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:11:52,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:11:52" (1/1) ... [2020-12-22 11:11:52,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47b348a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:11:52, skipping insertion in model container [2020-12-22 11:11:52,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:11:52" (1/1) ... [2020-12-22 11:11:52,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:11:52,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:11:52,343 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/safe025_pso.oepc.i[950,963] [2020-12-22 11:11:52,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:11:52,699 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:11:52,721 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/safe025_pso.oepc.i[950,963] [2020-12-22 11:11:52,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:11:52,965 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:11:52,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:11:52 WrapperNode [2020-12-22 11:11:52,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:11:52,974 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:11:52,974 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:11:52,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:11:52,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:11:52" (1/1) ... [2020-12-22 11:11:53,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:11:52" (1/1) ... [2020-12-22 11:11:53,072 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:11:53,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:11:53,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:11:53,077 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:11:53,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:11:52" (1/1) ... [2020-12-22 11:11:53,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:11:52" (1/1) ... [2020-12-22 11:11:53,105 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:11:52" (1/1) ... [2020-12-22 11:11:53,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:11:52" (1/1) ... [2020-12-22 11:11:53,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:11:52" (1/1) ... [2020-12-22 11:11:53,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:11:52" (1/1) ... [2020-12-22 11:11:53,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:11:52" (1/1) ... [2020-12-22 11:11:53,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:11:53,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:11:53,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:11:53,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:11:53,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:11:52" (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 11:11:53,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:11:53,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-22 11:11:53,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:11:53,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:11:53,265 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-22 11:11:53,266 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-22 11:11:53,266 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-22 11:11:53,267 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-22 11:11:53,267 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-22 11:11:53,268 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-22 11:11:53,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:11:53,269 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-22 11:11:53,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:11:53,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:11:53,272 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 11:11:53,805 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:11:53,805 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-22 11:11:53,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:11:53 BoogieIcfgContainer [2020-12-22 11:11:53,808 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:11:53,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:11:53,810 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:11:53,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:11:53,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:11:52" (1/3) ... [2020-12-22 11:11:53,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9af261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:11:53, skipping insertion in model container [2020-12-22 11:11:53,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:11:52" (2/3) ... [2020-12-22 11:11:53,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9af261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:11:53, skipping insertion in model container [2020-12-22 11:11:53,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:11:53" (3/3) ... [2020-12-22 11:11:53,817 INFO L111 eAbstractionObserver]: Analyzing ICFG safe025_pso.oepc.i [2020-12-22 11:11:53,825 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-22 11:11:53,826 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:11:53,831 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 11:11:53,833 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-22 11:11:53,864 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,864 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,864 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,865 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,865 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,865 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,865 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,865 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,866 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,866 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,866 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,867 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,867 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,867 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,868 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,868 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,868 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,868 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,868 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,869 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,869 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,869 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,870 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,870 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,870 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,870 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,871 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,871 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,871 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,871 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,871 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,872 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,872 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,872 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,873 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,873 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,875 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,876 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,876 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,876 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,881 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,882 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,882 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,882 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,884 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,885 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,885 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,885 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:11:53,887 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-22 11:11:53,908 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-22 11:11:53,932 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:11:53,932 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:11:53,932 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:11:53,932 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:11:53,933 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:11:53,933 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:11:53,933 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:11:53,933 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:11:53,947 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:11:53,950 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 75 transitions, 165 flow [2020-12-22 11:11:53,954 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 75 transitions, 165 flow [2020-12-22 11:11:53,956 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2020-12-22 11:11:54,001 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2020-12-22 11:11:54,002 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-22 11:11:54,006 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 54 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 11:11:54,010 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2020-12-22 11:11:56,499 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-12-22 11:11:56,696 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-12-22 11:11:57,210 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-12-22 11:11:57,662 WARN L197 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-12-22 11:11:57,782 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-22 11:11:58,013 WARN L197 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-12-22 11:11:58,165 INFO L131 LiptonReduction]: Checked pairs total: 2371 [2020-12-22 11:11:58,165 INFO L133 LiptonReduction]: Total number of compositions: 63 [2020-12-22 11:11:58,177 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-12-22 11:11:58,222 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-12-22 11:11:58,225 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-12-22 11:11:58,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 11:11:58,232 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:11:58,233 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:11:58,235 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:11:58,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:11:58,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1684989787, now seen corresponding path program 1 times [2020-12-22 11:11:58,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:11:58,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787384153] [2020-12-22 11:11:58,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:11:58,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:11:58,534 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 11:11:58,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787384153] [2020-12-22 11:11:58,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:11:58,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-22 11:11:58,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618937239] [2020-12-22 11:11:58,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:11:58,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:11:58,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:11:58,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:11:58,571 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-12-22 11:11:58,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:11:58,639 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-12-22 11:11:58,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:11:58,641 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-22 11:11:58,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:11:58,658 INFO L225 Difference]: With dead ends: 282 [2020-12-22 11:11:58,658 INFO L226 Difference]: Without dead ends: 218 [2020-12-22 11:11:58,659 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:11:58,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-12-22 11:11:58,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-12-22 11:11:58,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-12-22 11:11:58,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-12-22 11:11:58,732 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-12-22 11:11:58,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:11:58,734 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-12-22 11:11:58,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:11:58,734 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-12-22 11:11:58,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 11:11:58,737 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:11:58,737 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:11:58,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:11:58,738 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:11:58,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:11:58,742 INFO L82 PathProgramCache]: Analyzing trace with hash 695075092, now seen corresponding path program 1 times [2020-12-22 11:11:58,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:11:58,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020673749] [2020-12-22 11:11:58,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:11:58,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:11:58,874 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 11:11:58,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020673749] [2020-12-22 11:11:58,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:11:58,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:11:58,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648116189] [2020-12-22 11:11:58,877 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:11:58,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:11:58,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:11:58,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:11:58,878 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 3 states. [2020-12-22 11:11:58,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:11:58,912 INFO L93 Difference]: Finished difference Result 312 states and 816 transitions. [2020-12-22 11:11:58,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:11:58,913 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-12-22 11:11:58,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:11:58,917 INFO L225 Difference]: With dead ends: 312 [2020-12-22 11:11:58,917 INFO L226 Difference]: Without dead ends: 296 [2020-12-22 11:11:58,918 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:11:58,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-12-22 11:11:58,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 262. [2020-12-22 11:11:58,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-12-22 11:11:58,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 703 transitions. [2020-12-22 11:11:58,944 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 703 transitions. Word has length 9 [2020-12-22 11:11:58,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:11:58,944 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 703 transitions. [2020-12-22 11:11:58,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:11:58,945 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 703 transitions. [2020-12-22 11:11:58,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:11:58,947 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:11:58,947 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:11:58,947 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:11:58,947 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:11:58,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:11:58,948 INFO L82 PathProgramCache]: Analyzing trace with hash 72489286, now seen corresponding path program 1 times [2020-12-22 11:11:58,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:11:58,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474704111] [2020-12-22 11:11:58,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:11:58,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:11:59,049 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 11:11:59,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474704111] [2020-12-22 11:11:59,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:11:59,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-22 11:11:59,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410006576] [2020-12-22 11:11:59,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:11:59,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:11:59,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:11:59,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:11:59,052 INFO L87 Difference]: Start difference. First operand 262 states and 703 transitions. Second operand 3 states. [2020-12-22 11:11:59,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:11:59,059 INFO L93 Difference]: Finished difference Result 254 states and 677 transitions. [2020-12-22 11:11:59,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:11:59,060 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-22 11:11:59,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:11:59,063 INFO L225 Difference]: With dead ends: 254 [2020-12-22 11:11:59,063 INFO L226 Difference]: Without dead ends: 254 [2020-12-22 11:11:59,064 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:11:59,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-12-22 11:11:59,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 238. [2020-12-22 11:11:59,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-12-22 11:11:59,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 641 transitions. [2020-12-22 11:11:59,081 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 641 transitions. Word has length 10 [2020-12-22 11:11:59,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:11:59,082 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 641 transitions. [2020-12-22 11:11:59,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:11:59,082 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 641 transitions. [2020-12-22 11:11:59,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:11:59,084 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:11:59,084 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:11:59,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:11:59,084 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:11:59,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:11:59,088 INFO L82 PathProgramCache]: Analyzing trace with hash 72490526, now seen corresponding path program 1 times [2020-12-22 11:11:59,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:11:59,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376762744] [2020-12-22 11:11:59,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:11:59,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:11:59,165 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 11:11:59,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376762744] [2020-12-22 11:11:59,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:11:59,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:11:59,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341799670] [2020-12-22 11:11:59,166 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:11:59,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:11:59,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:11:59,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:11:59,168 INFO L87 Difference]: Start difference. First operand 238 states and 641 transitions. Second operand 3 states. [2020-12-22 11:11:59,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:11:59,184 INFO L93 Difference]: Finished difference Result 226 states and 600 transitions. [2020-12-22 11:11:59,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:11:59,185 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-22 11:11:59,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:11:59,195 INFO L225 Difference]: With dead ends: 226 [2020-12-22 11:11:59,196 INFO L226 Difference]: Without dead ends: 226 [2020-12-22 11:11:59,196 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:11:59,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-12-22 11:11:59,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 202. [2020-12-22 11:11:59,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-12-22 11:11:59,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 530 transitions. [2020-12-22 11:11:59,245 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 530 transitions. Word has length 10 [2020-12-22 11:11:59,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:11:59,247 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 530 transitions. [2020-12-22 11:11:59,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:11:59,248 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 530 transitions. [2020-12-22 11:11:59,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 11:11:59,250 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:11:59,250 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:11:59,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 11:11:59,250 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:11:59,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:11:59,251 INFO L82 PathProgramCache]: Analyzing trace with hash -2036231076, now seen corresponding path program 1 times [2020-12-22 11:11:59,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:11:59,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612462969] [2020-12-22 11:11:59,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:11:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:11:59,347 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 11:11:59,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612462969] [2020-12-22 11:11:59,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:11:59,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:11:59,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295881804] [2020-12-22 11:11:59,349 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:11:59,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:11:59,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:11:59,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:11:59,351 INFO L87 Difference]: Start difference. First operand 202 states and 530 transitions. Second operand 4 states. [2020-12-22 11:11:59,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:11:59,395 INFO L93 Difference]: Finished difference Result 282 states and 728 transitions. [2020-12-22 11:11:59,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:11:59,396 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-22 11:11:59,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:11:59,398 INFO L225 Difference]: With dead ends: 282 [2020-12-22 11:11:59,398 INFO L226 Difference]: Without dead ends: 178 [2020-12-22 11:11:59,398 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 11:11:59,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-12-22 11:11:59,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2020-12-22 11:11:59,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-12-22 11:11:59,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 452 transitions. [2020-12-22 11:11:59,411 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 452 transitions. Word has length 11 [2020-12-22 11:11:59,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:11:59,411 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 452 transitions. [2020-12-22 11:11:59,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:11:59,412 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 452 transitions. [2020-12-22 11:11:59,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 11:11:59,416 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:11:59,417 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:11:59,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 11:11:59,417 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:11:59,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:11:59,418 INFO L82 PathProgramCache]: Analyzing trace with hash -2047800276, now seen corresponding path program 2 times [2020-12-22 11:11:59,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:11:59,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404520239] [2020-12-22 11:11:59,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:11:59,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:11:59,532 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 11:11:59,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404520239] [2020-12-22 11:11:59,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:11:59,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:11:59,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053778770] [2020-12-22 11:11:59,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:11:59,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:11:59,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:11:59,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:11:59,536 INFO L87 Difference]: Start difference. First operand 178 states and 452 transitions. Second operand 4 states. [2020-12-22 11:11:59,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:11:59,564 INFO L93 Difference]: Finished difference Result 206 states and 481 transitions. [2020-12-22 11:11:59,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:11:59,565 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-22 11:11:59,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:11:59,566 INFO L225 Difference]: With dead ends: 206 [2020-12-22 11:11:59,567 INFO L226 Difference]: Without dead ends: 150 [2020-12-22 11:11:59,567 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 11:11:59,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-12-22 11:11:59,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2020-12-22 11:11:59,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-12-22 11:11:59,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 344 transitions. [2020-12-22 11:11:59,574 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 344 transitions. Word has length 11 [2020-12-22 11:11:59,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:11:59,574 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 344 transitions. [2020-12-22 11:11:59,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:11:59,574 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 344 transitions. [2020-12-22 11:11:59,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 11:11:59,575 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:11:59,575 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:11:59,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 11:11:59,576 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:11:59,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:11:59,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1362454825, now seen corresponding path program 1 times [2020-12-22 11:11:59,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:11:59,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903907021] [2020-12-22 11:11:59,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:11:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:11:59,631 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 11:11:59,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903907021] [2020-12-22 11:11:59,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:11:59,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:11:59,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158239838] [2020-12-22 11:11:59,632 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:11:59,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:11:59,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:11:59,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:11:59,634 INFO L87 Difference]: Start difference. First operand 150 states and 344 transitions. Second operand 5 states. [2020-12-22 11:11:59,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:11:59,688 INFO L93 Difference]: Finished difference Result 149 states and 319 transitions. [2020-12-22 11:11:59,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:11:59,689 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-22 11:11:59,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:11:59,690 INFO L225 Difference]: With dead ends: 149 [2020-12-22 11:11:59,690 INFO L226 Difference]: Without dead ends: 115 [2020-12-22 11:11:59,690 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 11:11:59,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-12-22 11:11:59,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-12-22 11:11:59,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-12-22 11:11:59,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 242 transitions. [2020-12-22 11:11:59,695 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 242 transitions. Word has length 12 [2020-12-22 11:11:59,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:11:59,696 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 242 transitions. [2020-12-22 11:11:59,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:11:59,696 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 242 transitions. [2020-12-22 11:11:59,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 11:11:59,697 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:11:59,697 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:11:59,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 11:11:59,697 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:11:59,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:11:59,698 INFO L82 PathProgramCache]: Analyzing trace with hash -646579048, now seen corresponding path program 1 times [2020-12-22 11:11:59,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:11:59,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338763960] [2020-12-22 11:11:59,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:11:59,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:11:59,755 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 11:11:59,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338763960] [2020-12-22 11:11:59,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:11:59,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:11:59,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084374769] [2020-12-22 11:11:59,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:11:59,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:11:59,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:11:59,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:11:59,758 INFO L87 Difference]: Start difference. First operand 115 states and 242 transitions. Second operand 6 states. [2020-12-22 11:11:59,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:11:59,834 INFO L93 Difference]: Finished difference Result 110 states and 230 transitions. [2020-12-22 11:11:59,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:11:59,834 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-22 11:11:59,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:11:59,836 INFO L225 Difference]: With dead ends: 110 [2020-12-22 11:11:59,836 INFO L226 Difference]: Without dead ends: 92 [2020-12-22 11:11:59,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 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 11:11:59,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-12-22 11:11:59,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 88. [2020-12-22 11:11:59,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-12-22 11:11:59,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 185 transitions. [2020-12-22 11:11:59,842 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 185 transitions. Word has length 14 [2020-12-22 11:11:59,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:11:59,843 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 185 transitions. [2020-12-22 11:11:59,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:11:59,843 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 185 transitions. [2020-12-22 11:11:59,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 11:11:59,844 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:11:59,844 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:11:59,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 11:11:59,844 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:11:59,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:11:59,845 INFO L82 PathProgramCache]: Analyzing trace with hash 390859497, now seen corresponding path program 1 times [2020-12-22 11:11:59,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:11:59,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048562585] [2020-12-22 11:11:59,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:11:59,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:11:59,915 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 11:11:59,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048562585] [2020-12-22 11:11:59,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:11:59,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:11:59,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829537941] [2020-12-22 11:11:59,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:11:59,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:11:59,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:11:59,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:11:59,920 INFO L87 Difference]: Start difference. First operand 88 states and 185 transitions. Second operand 4 states. [2020-12-22 11:11:59,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:11:59,958 INFO L93 Difference]: Finished difference Result 117 states and 238 transitions. [2020-12-22 11:11:59,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:11:59,958 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-12-22 11:11:59,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:11:59,959 INFO L225 Difference]: With dead ends: 117 [2020-12-22 11:11:59,960 INFO L226 Difference]: Without dead ends: 60 [2020-12-22 11:11:59,960 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 11:11:59,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-12-22 11:11:59,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2020-12-22 11:11:59,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-12-22 11:11:59,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 101 transitions. [2020-12-22 11:11:59,963 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 101 transitions. Word has length 17 [2020-12-22 11:11:59,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:11:59,963 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 101 transitions. [2020-12-22 11:11:59,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:11:59,963 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 101 transitions. [2020-12-22 11:11:59,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 11:11:59,964 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:11:59,964 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:11:59,964 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 11:11:59,965 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:11:59,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:11:59,965 INFO L82 PathProgramCache]: Analyzing trace with hash 321753769, now seen corresponding path program 2 times [2020-12-22 11:11:59,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:11:59,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366274008] [2020-12-22 11:11:59,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:11:59,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:12:00,032 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 11:12:00,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366274008] [2020-12-22 11:12:00,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:12:00,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:12:00,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603002793] [2020-12-22 11:12:00,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:12:00,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:12:00,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:12:00,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:12:00,035 INFO L87 Difference]: Start difference. First operand 56 states and 101 transitions. Second operand 4 states. [2020-12-22 11:12:00,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:12:00,056 INFO L93 Difference]: Finished difference Result 71 states and 125 transitions. [2020-12-22 11:12:00,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:12:00,056 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-12-22 11:12:00,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:12:00,057 INFO L225 Difference]: With dead ends: 71 [2020-12-22 11:12:00,057 INFO L226 Difference]: Without dead ends: 29 [2020-12-22 11:12:00,058 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 11:12:00,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-22 11:12:00,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-12-22 11:12:00,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-22 11:12:00,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 41 transitions. [2020-12-22 11:12:00,060 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 41 transitions. Word has length 17 [2020-12-22 11:12:00,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:12:00,060 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 41 transitions. [2020-12-22 11:12:00,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:12:00,060 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 41 transitions. [2020-12-22 11:12:00,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 11:12:00,061 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:12:00,061 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:12:00,061 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 11:12:00,062 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:12:00,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:12:00,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1988858199, now seen corresponding path program 3 times [2020-12-22 11:12:00,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:12:00,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579490816] [2020-12-22 11:12:00,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:12:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:12:00,123 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 11:12:00,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579490816] [2020-12-22 11:12:00,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:12:00,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:12:00,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50770014] [2020-12-22 11:12:00,124 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:12:00,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:12:00,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:12:00,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:12:00,127 INFO L87 Difference]: Start difference. First operand 29 states and 41 transitions. Second operand 4 states. [2020-12-22 11:12:00,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:12:00,142 INFO L93 Difference]: Finished difference Result 28 states and 40 transitions. [2020-12-22 11:12:00,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:12:00,143 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-12-22 11:12:00,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:12:00,143 INFO L225 Difference]: With dead ends: 28 [2020-12-22 11:12:00,143 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 11:12:00,144 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 11:12:00,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 11:12:00,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 11:12:00,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 11:12:00,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 11:12:00,150 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-12-22 11:12:00,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:12:00,156 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 11:12:00,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:12:00,157 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 11:12:00,157 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 11:12:00,157 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 11:12:00,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:12:00 BasicIcfg [2020-12-22 11:12:00,164 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 11:12:00,165 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 11:12:00,165 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 11:12:00,165 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 11:12:00,166 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:11:53" (3/4) ... [2020-12-22 11:12:00,170 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 11:12:00,179 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-22 11:12:00,179 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-22 11:12:00,179 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-22 11:12:00,187 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-22 11:12:00,187 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 11:12:00,187 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:12:00,187 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:12:00,273 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe025_pso.oepc.i-witness.graphml [2020-12-22 11:12:00,274 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 11:12:00,275 INFO L168 Benchmark]: Toolchain (without parser) took 8203.16 ms. Allocated memory was 151.0 MB in the beginning and 220.2 MB in the end (delta: 69.2 MB). Free memory was 125.1 MB in the beginning and 100.6 MB in the end (delta: 24.5 MB). Peak memory consumption was 93.7 MB. Max. memory is 8.0 GB. [2020-12-22 11:12:00,275 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 122.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:12:00,276 INFO L168 Benchmark]: CACSL2BoogieTranslator took 891.81 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 126.0 MB in the end (delta: -1.2 MB). Peak memory consumption was 26.9 MB. Max. memory is 8.0 GB. [2020-12-22 11:12:00,279 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.72 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 124.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:12:00,279 INFO L168 Benchmark]: Boogie Preprocessor took 64.46 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 122.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:12:00,280 INFO L168 Benchmark]: RCFGBuilder took 667.42 ms. Allocated memory is still 151.0 MB. Free memory was 122.9 MB in the beginning and 100.9 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:12:00,281 INFO L168 Benchmark]: TraceAbstraction took 6353.98 ms. Allocated memory was 151.0 MB in the beginning and 220.2 MB in the end (delta: 69.2 MB). Free memory was 100.4 MB in the beginning and 103.7 MB in the end (delta: -3.4 MB). Peak memory consumption was 66.9 MB. Max. memory is 8.0 GB. [2020-12-22 11:12:00,282 INFO L168 Benchmark]: Witness Printer took 108.96 ms. Allocated memory is still 220.2 MB. Free memory was 103.7 MB in the beginning and 100.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:12:00,286 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 122.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 891.81 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 126.0 MB in the end (delta: -1.2 MB). Peak memory consumption was 26.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 99.72 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 124.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Preprocessor took 64.46 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 122.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 667.42 ms. Allocated memory is still 151.0 MB. Free memory was 122.9 MB in the beginning and 100.9 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6353.98 ms. Allocated memory was 151.0 MB in the beginning and 220.2 MB in the end (delta: 69.2 MB). Free memory was 100.4 MB in the beginning and 103.7 MB in the end (delta: -3.4 MB). Peak memory consumption was 66.9 MB. Max. memory is 8.0 GB. * Witness Printer took 108.96 ms. Allocated memory is still 220.2 MB. Free memory was 103.7 MB in the beginning and 100.6 MB in the end (delta: 3.1 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 831 VarBasedMoverChecksPositive, 41 VarBasedMoverChecksNegative, 10 SemBasedMoverChecksPositive, 31 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 64 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.2s, 83 PlacesBefore, 31 PlacesAfterwards, 75 TransitionsBefore, 21 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 63 TotalNumberOfCompositions, 2371 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: 6.2s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.2s, HoareTripleCheckerStatistics: 194 SDtfs, 225 SDslu, 183 SDs, 0 SdLazy, 101 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 82 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 125 ConstructedInterpolants, 0 QuantifiedInterpolants, 4604 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...