/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/safe017_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:09:26,858 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:09:26,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:09:26,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:09:26,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:09:26,900 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:09:26,902 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:09:26,905 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:09:26,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:09:26,909 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:09:26,910 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:09:26,912 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:09:26,913 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:09:26,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:09:26,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:09:26,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:09:26,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:09:26,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:09:26,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:09:26,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:09:26,940 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:09:26,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:09:26,945 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:09:26,948 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:09:26,955 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:09:26,955 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:09:26,956 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:09:26,959 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:09:26,962 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:09:26,964 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:09:26,964 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:09:26,967 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:09:26,968 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:09:26,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:09:26,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:09:26,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:09:26,975 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:09:26,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:09:26,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:09:26,979 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:09:26,980 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:09:26,982 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:09:27,031 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:09:27,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:09:27,037 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:09:27,038 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:09:27,038 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:09:27,038 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:09:27,038 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:09:27,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:09:27,039 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:09:27,039 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:09:27,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:09:27,040 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:09:27,041 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:09:27,041 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:09:27,041 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:09:27,041 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:09:27,041 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:09:27,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:09:27,042 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:09:27,042 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:09:27,042 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:09:27,042 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:09:27,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:09:27,043 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:09:27,043 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:09:27,043 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:09:27,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:09:27,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:09:27,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:09:27,467 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:09:27,468 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:09:27,469 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe017_tso.oepc.i [2020-12-22 11:09:27,559 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5bee2000/43e9fe06c7bc413cbc04f472884f65d7/FLAG5b1cc2a4f [2020-12-22 11:09:28,243 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:09:28,245 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe017_tso.oepc.i [2020-12-22 11:09:28,278 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5bee2000/43e9fe06c7bc413cbc04f472884f65d7/FLAG5b1cc2a4f [2020-12-22 11:09:28,512 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5bee2000/43e9fe06c7bc413cbc04f472884f65d7 [2020-12-22 11:09:28,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:09:28,518 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:09:28,520 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:09:28,520 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:09:28,524 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:09:28,525 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:09:28" (1/1) ... [2020-12-22 11:09:28,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51f72017 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:09:28, skipping insertion in model container [2020-12-22 11:09:28,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:09:28" (1/1) ... [2020-12-22 11:09:28,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:09:28,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:09:28,763 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/safe017_tso.oepc.i[950,963] [2020-12-22 11:09:29,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:09:29,126 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:09:29,143 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/safe017_tso.oepc.i[950,963] [2020-12-22 11:09:29,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:09:29,373 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:09:29,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:09:29 WrapperNode [2020-12-22 11:09:29,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:09:29,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:09:29,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:09:29,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:09:29,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:09:29" (1/1) ... [2020-12-22 11:09:29,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:09:29" (1/1) ... [2020-12-22 11:09:29,468 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:09:29,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:09:29,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:09:29,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:09:29,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:09:29" (1/1) ... [2020-12-22 11:09:29,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:09:29" (1/1) ... [2020-12-22 11:09:29,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:09:29" (1/1) ... [2020-12-22 11:09:29,483 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:09:29" (1/1) ... [2020-12-22 11:09:29,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:09:29" (1/1) ... [2020-12-22 11:09:29,492 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:09:29" (1/1) ... [2020-12-22 11:09:29,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:09:29" (1/1) ... [2020-12-22 11:09:29,498 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:09:29,499 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:09:29,500 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:09:29,500 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:09:29,501 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:09:29" (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 11:09:29,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:09:29,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-22 11:09:29,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:09:29,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:09:29,614 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-22 11:09:29,614 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-22 11:09:29,614 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-22 11:09:29,614 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-22 11:09:29,614 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-22 11:09:29,614 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-22 11:09:29,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:09:29,615 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-22 11:09:29,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:09:29,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:09:29,617 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 11:09:30,092 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:09:30,092 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-22 11:09:30,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:09:30 BoogieIcfgContainer [2020-12-22 11:09:30,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:09:30,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:09:30,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:09:30,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:09:30,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:09:28" (1/3) ... [2020-12-22 11:09:30,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10bcdfe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:09:30, skipping insertion in model container [2020-12-22 11:09:30,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:09:29" (2/3) ... [2020-12-22 11:09:30,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10bcdfe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:09:30, skipping insertion in model container [2020-12-22 11:09:30,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:09:30" (3/3) ... [2020-12-22 11:09:30,105 INFO L111 eAbstractionObserver]: Analyzing ICFG safe017_tso.oepc.i [2020-12-22 11:09:30,112 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-22 11:09:30,113 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:09:30,118 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 11:09:30,119 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-22 11:09:30,160 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,160 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,161 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,161 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,161 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,161 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,162 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,162 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,162 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,163 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,163 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,163 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,163 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,164 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,164 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,164 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,164 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,164 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,165 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,165 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,165 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,165 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,166 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,166 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,166 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,166 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,167 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,167 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,167 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,167 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,167 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,168 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,168 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,168 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,168 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,169 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,171 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,172 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,172 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,172 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,178 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,179 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,179 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,179 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,182 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,182 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,183 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,183 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:09:30,186 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-22 11:09:30,208 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-22 11:09:30,233 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:09:30,234 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:09:30,234 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:09:30,234 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:09:30,234 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:09:30,234 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:09:30,235 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:09:30,235 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:09:30,249 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:09:30,251 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 72 transitions, 159 flow [2020-12-22 11:09:30,254 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 72 transitions, 159 flow [2020-12-22 11:09:30,257 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 72 transitions, 159 flow [2020-12-22 11:09:30,301 INFO L129 PetriNetUnfolder]: 2/69 cut-off events. [2020-12-22 11:09:30,302 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-22 11:09:30,307 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 69 events. 2/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-12-22 11:09:30,310 INFO L116 LiptonReduction]: Number of co-enabled transitions 1212 [2020-12-22 11:09:33,058 WARN L197 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2020-12-22 11:09:33,167 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-12-22 11:09:33,409 WARN L197 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2020-12-22 11:09:33,742 INFO L131 LiptonReduction]: Checked pairs total: 2267 [2020-12-22 11:09:33,742 INFO L133 LiptonReduction]: Total number of compositions: 64 [2020-12-22 11:09:33,750 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 21 transitions, 57 flow [2020-12-22 11:09:33,773 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-12-22 11:09:33,776 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-12-22 11:09:33,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 11:09:33,783 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:09:33,784 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:09:33,785 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:09:33,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:09:33,791 INFO L82 PathProgramCache]: Analyzing trace with hash 968887471, now seen corresponding path program 1 times [2020-12-22 11:09:33,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:09:33,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535265222] [2020-12-22 11:09:33,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:09:33,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:09:34,082 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 11:09:34,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535265222] [2020-12-22 11:09:34,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:09:34,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-22 11:09:34,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658033931] [2020-12-22 11:09:34,098 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:09:34,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:09:34,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:09:34,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:09:34,121 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-12-22 11:09:34,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:09:34,177 INFO L93 Difference]: Finished difference Result 356 states and 939 transitions. [2020-12-22 11:09:34,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:09:34,179 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-22 11:09:34,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:09:34,195 INFO L225 Difference]: With dead ends: 356 [2020-12-22 11:09:34,196 INFO L226 Difference]: Without dead ends: 237 [2020-12-22 11:09:34,197 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 11:09:34,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-12-22 11:09:34,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 209. [2020-12-22 11:09:34,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-12-22 11:09:34,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 526 transitions. [2020-12-22 11:09:34,270 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 526 transitions. Word has length 8 [2020-12-22 11:09:34,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:09:34,271 INFO L481 AbstractCegarLoop]: Abstraction has 209 states and 526 transitions. [2020-12-22 11:09:34,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:09:34,272 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 526 transitions. [2020-12-22 11:09:34,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 11:09:34,273 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:09:34,273 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:09:34,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:09:34,274 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:09:34,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:09:34,275 INFO L82 PathProgramCache]: Analyzing trace with hash -1958496591, now seen corresponding path program 1 times [2020-12-22 11:09:34,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:09:34,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513355593] [2020-12-22 11:09:34,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:09:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:09:34,383 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 11:09:34,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513355593] [2020-12-22 11:09:34,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:09:34,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-22 11:09:34,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499920356] [2020-12-22 11:09:34,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:09:34,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:09:34,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:09:34,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:09:34,388 INFO L87 Difference]: Start difference. First operand 209 states and 526 transitions. Second operand 3 states. [2020-12-22 11:09:34,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:09:34,399 INFO L93 Difference]: Finished difference Result 200 states and 497 transitions. [2020-12-22 11:09:34,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:09:34,400 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-12-22 11:09:34,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:09:34,403 INFO L225 Difference]: With dead ends: 200 [2020-12-22 11:09:34,403 INFO L226 Difference]: Without dead ends: 200 [2020-12-22 11:09:34,404 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 11:09:34,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-12-22 11:09:34,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 196. [2020-12-22 11:09:34,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2020-12-22 11:09:34,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 485 transitions. [2020-12-22 11:09:34,425 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 485 transitions. Word has length 9 [2020-12-22 11:09:34,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:09:34,425 INFO L481 AbstractCegarLoop]: Abstraction has 196 states and 485 transitions. [2020-12-22 11:09:34,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:09:34,426 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 485 transitions. [2020-12-22 11:09:34,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 11:09:34,427 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:09:34,427 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:09:34,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:09:34,428 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:09:34,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:09:34,428 INFO L82 PathProgramCache]: Analyzing trace with hash -48326288, now seen corresponding path program 1 times [2020-12-22 11:09:34,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:09:34,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260669091] [2020-12-22 11:09:34,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:09:34,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:09:34,482 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 11:09:34,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260669091] [2020-12-22 11:09:34,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:09:34,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-22 11:09:34,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846324] [2020-12-22 11:09:34,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:09:34,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:09:34,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:09:34,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:09:34,485 INFO L87 Difference]: Start difference. First operand 196 states and 485 transitions. Second operand 3 states. [2020-12-22 11:09:34,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:09:34,498 INFO L93 Difference]: Finished difference Result 192 states and 471 transitions. [2020-12-22 11:09:34,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:09:34,499 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-12-22 11:09:34,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:09:34,503 INFO L225 Difference]: With dead ends: 192 [2020-12-22 11:09:34,504 INFO L226 Difference]: Without dead ends: 192 [2020-12-22 11:09:34,506 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 11:09:34,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-12-22 11:09:34,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2020-12-22 11:09:34,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-12-22 11:09:34,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 471 transitions. [2020-12-22 11:09:34,542 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 471 transitions. Word has length 9 [2020-12-22 11:09:34,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:09:34,542 INFO L481 AbstractCegarLoop]: Abstraction has 192 states and 471 transitions. [2020-12-22 11:09:34,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:09:34,544 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 471 transitions. [2020-12-22 11:09:34,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:09:34,546 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:09:34,547 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:09:34,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:09:34,548 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:09:34,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:09:34,549 INFO L82 PathProgramCache]: Analyzing trace with hash -602918994, now seen corresponding path program 1 times [2020-12-22 11:09:34,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:09:34,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847964502] [2020-12-22 11:09:34,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:09:34,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:09:34,676 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 11:09:34,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847964502] [2020-12-22 11:09:34,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:09:34,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:09:34,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391006441] [2020-12-22 11:09:34,678 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:09:34,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:09:34,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:09:34,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:09:34,679 INFO L87 Difference]: Start difference. First operand 192 states and 471 transitions. Second operand 4 states. [2020-12-22 11:09:34,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:09:34,702 INFO L93 Difference]: Finished difference Result 206 states and 492 transitions. [2020-12-22 11:09:34,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:09:34,703 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-22 11:09:34,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:09:34,706 INFO L225 Difference]: With dead ends: 206 [2020-12-22 11:09:34,706 INFO L226 Difference]: Without dead ends: 206 [2020-12-22 11:09:34,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:09:34,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-12-22 11:09:34,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 170. [2020-12-22 11:09:34,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-12-22 11:09:34,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 416 transitions. [2020-12-22 11:09:34,720 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 416 transitions. Word has length 10 [2020-12-22 11:09:34,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:09:34,721 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 416 transitions. [2020-12-22 11:09:34,721 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:09:34,721 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 416 transitions. [2020-12-22 11:09:34,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 11:09:34,723 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:09:34,723 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:09:34,723 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 11:09:34,723 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:09:34,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:09:34,724 INFO L82 PathProgramCache]: Analyzing trace with hash -779947866, now seen corresponding path program 1 times [2020-12-22 11:09:34,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:09:34,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289880067] [2020-12-22 11:09:34,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:09:34,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:09:34,827 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 11:09:34,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289880067] [2020-12-22 11:09:34,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:09:34,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:09:34,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334636073] [2020-12-22 11:09:34,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:09:34,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:09:34,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:09:34,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:09:34,833 INFO L87 Difference]: Start difference. First operand 170 states and 416 transitions. Second operand 4 states. [2020-12-22 11:09:34,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:09:34,862 INFO L93 Difference]: Finished difference Result 216 states and 501 transitions. [2020-12-22 11:09:34,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:09:34,866 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-22 11:09:34,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:09:34,872 INFO L225 Difference]: With dead ends: 216 [2020-12-22 11:09:34,872 INFO L226 Difference]: Without dead ends: 192 [2020-12-22 11:09:34,872 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:09:34,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-12-22 11:09:34,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 160. [2020-12-22 11:09:34,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-12-22 11:09:34,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 381 transitions. [2020-12-22 11:09:34,895 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 381 transitions. Word has length 11 [2020-12-22 11:09:34,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:09:34,895 INFO L481 AbstractCegarLoop]: Abstraction has 160 states and 381 transitions. [2020-12-22 11:09:34,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:09:34,895 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 381 transitions. [2020-12-22 11:09:34,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 11:09:34,897 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:09:34,900 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:09:34,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 11:09:34,904 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:09:34,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:09:34,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1510620579, now seen corresponding path program 1 times [2020-12-22 11:09:34,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:09:34,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874403627] [2020-12-22 11:09:34,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:09:34,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:09:35,002 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 11:09:35,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874403627] [2020-12-22 11:09:35,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:09:35,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:09:35,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262972127] [2020-12-22 11:09:35,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:09:35,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:09:35,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:09:35,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:09:35,006 INFO L87 Difference]: Start difference. First operand 160 states and 381 transitions. Second operand 4 states. [2020-12-22 11:09:35,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:09:35,048 INFO L93 Difference]: Finished difference Result 188 states and 407 transitions. [2020-12-22 11:09:35,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:09:35,049 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-22 11:09:35,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:09:35,051 INFO L225 Difference]: With dead ends: 188 [2020-12-22 11:09:35,051 INFO L226 Difference]: Without dead ends: 136 [2020-12-22 11:09:35,053 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 11:09:35,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-12-22 11:09:35,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-12-22 11:09:35,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-12-22 11:09:35,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 290 transitions. [2020-12-22 11:09:35,073 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 290 transitions. Word has length 11 [2020-12-22 11:09:35,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:09:35,074 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 290 transitions. [2020-12-22 11:09:35,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:09:35,076 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 290 transitions. [2020-12-22 11:09:35,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 11:09:35,083 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:09:35,083 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:09:35,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 11:09:35,084 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:09:35,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:09:35,085 INFO L82 PathProgramCache]: Analyzing trace with hash 253796715, now seen corresponding path program 1 times [2020-12-22 11:09:35,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:09:35,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116745439] [2020-12-22 11:09:35,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:09:35,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:09:35,171 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 11:09:35,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116745439] [2020-12-22 11:09:35,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:09:35,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:09:35,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770382581] [2020-12-22 11:09:35,173 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:09:35,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:09:35,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:09:35,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:09:35,174 INFO L87 Difference]: Start difference. First operand 136 states and 290 transitions. Second operand 5 states. [2020-12-22 11:09:35,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:09:35,216 INFO L93 Difference]: Finished difference Result 136 states and 267 transitions. [2020-12-22 11:09:35,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:09:35,217 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-22 11:09:35,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:09:35,218 INFO L225 Difference]: With dead ends: 136 [2020-12-22 11:09:35,218 INFO L226 Difference]: Without dead ends: 95 [2020-12-22 11:09:35,219 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:09:35,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-12-22 11:09:35,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2020-12-22 11:09:35,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-12-22 11:09:35,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 176 transitions. [2020-12-22 11:09:35,222 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 176 transitions. Word has length 12 [2020-12-22 11:09:35,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:09:35,223 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 176 transitions. [2020-12-22 11:09:35,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:09:35,223 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 176 transitions. [2020-12-22 11:09:35,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 11:09:35,224 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:09:35,224 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:09:35,224 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 11:09:35,224 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:09:35,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:09:35,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1566674326, now seen corresponding path program 1 times [2020-12-22 11:09:35,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:09:35,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333135126] [2020-12-22 11:09:35,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:09:35,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:09:35,282 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 11:09:35,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333135126] [2020-12-22 11:09:35,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:09:35,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:09:35,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893445224] [2020-12-22 11:09:35,284 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:09:35,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:09:35,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:09:35,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:09:35,289 INFO L87 Difference]: Start difference. First operand 95 states and 176 transitions. Second operand 3 states. [2020-12-22 11:09:35,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:09:35,297 INFO L93 Difference]: Finished difference Result 120 states and 214 transitions. [2020-12-22 11:09:35,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:09:35,298 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-12-22 11:09:35,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:09:35,299 INFO L225 Difference]: With dead ends: 120 [2020-12-22 11:09:35,299 INFO L226 Difference]: Without dead ends: 96 [2020-12-22 11:09:35,299 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 11:09:35,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-12-22 11:09:35,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 89. [2020-12-22 11:09:35,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-12-22 11:09:35,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 161 transitions. [2020-12-22 11:09:35,303 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 161 transitions. Word has length 13 [2020-12-22 11:09:35,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:09:35,304 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 161 transitions. [2020-12-22 11:09:35,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:09:35,304 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 161 transitions. [2020-12-22 11:09:35,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 11:09:35,305 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:09:35,305 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:09:35,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 11:09:35,305 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:09:35,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:09:35,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1569554417, now seen corresponding path program 1 times [2020-12-22 11:09:35,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:09:35,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44689115] [2020-12-22 11:09:35,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:09:35,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:09:35,395 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 11:09:35,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44689115] [2020-12-22 11:09:35,395 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:09:35,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:09:35,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166245205] [2020-12-22 11:09:35,396 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:09:35,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:09:35,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:09:35,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:09:35,397 INFO L87 Difference]: Start difference. First operand 89 states and 161 transitions. Second operand 6 states. [2020-12-22 11:09:35,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:09:35,448 INFO L93 Difference]: Finished difference Result 85 states and 151 transitions. [2020-12-22 11:09:35,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:09:35,448 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-22 11:09:35,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:09:35,449 INFO L225 Difference]: With dead ends: 85 [2020-12-22 11:09:35,449 INFO L226 Difference]: Without dead ends: 26 [2020-12-22 11:09:35,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:09:35,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-12-22 11:09:35,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-12-22 11:09:35,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-12-22 11:09:35,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2020-12-22 11:09:35,451 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 14 [2020-12-22 11:09:35,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:09:35,452 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2020-12-22 11:09:35,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:09:35,452 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2020-12-22 11:09:35,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 11:09:35,452 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:09:35,452 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:09:35,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 11:09:35,453 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:09:35,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:09:35,453 INFO L82 PathProgramCache]: Analyzing trace with hash -974253196, now seen corresponding path program 1 times [2020-12-22 11:09:35,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:09:35,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004799019] [2020-12-22 11:09:35,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:09:35,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:09:35,530 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 11:09:35,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004799019] [2020-12-22 11:09:35,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:09:35,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:09:35,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127407943] [2020-12-22 11:09:35,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:09:35,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:09:35,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:09:35,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:09:35,533 INFO L87 Difference]: Start difference. First operand 26 states and 36 transitions. Second operand 4 states. [2020-12-22 11:09:35,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:09:35,545 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2020-12-22 11:09:35,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:09:35,545 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-12-22 11:09:35,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:09:35,546 INFO L225 Difference]: With dead ends: 25 [2020-12-22 11:09:35,546 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 11:09:35,546 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 11:09:35,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 11:09:35,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 11:09:35,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 11:09:35,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 11:09:35,547 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-12-22 11:09:35,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:09:35,547 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 11:09:35,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:09:35,552 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 11:09:35,552 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 11:09:35,552 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 11:09:35,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:09:35 BasicIcfg [2020-12-22 11:09:35,558 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 11:09:35,559 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 11:09:35,559 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 11:09:35,559 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 11:09:35,560 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:09:30" (3/4) ... [2020-12-22 11:09:35,565 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 11:09:35,572 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-22 11:09:35,572 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-22 11:09:35,572 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-22 11:09:35,579 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-22 11:09:35,579 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 11:09:35,579 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:09:35,580 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:09:35,641 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe017_tso.oepc.i-witness.graphml [2020-12-22 11:09:35,641 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 11:09:35,645 INFO L168 Benchmark]: Toolchain (without parser) took 7124.69 ms. Allocated memory was 152.0 MB in the beginning and 229.6 MB in the end (delta: 77.6 MB). Free memory was 126.5 MB in the beginning and 118.4 MB in the end (delta: 8.1 MB). Peak memory consumption was 86.6 MB. Max. memory is 8.0 GB. [2020-12-22 11:09:35,646 INFO L168 Benchmark]: CDTParser took 0.65 ms. Allocated memory is still 152.0 MB. Free memory is still 124.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:09:35,647 INFO L168 Benchmark]: CACSL2BoogieTranslator took 855.23 ms. Allocated memory is still 152.0 MB. Free memory was 126.3 MB in the beginning and 131.6 MB in the end (delta: -5.3 MB). Peak memory consumption was 32.5 MB. Max. memory is 8.0 GB. [2020-12-22 11:09:35,647 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.16 ms. Allocated memory is still 152.0 MB. Free memory was 131.6 MB in the beginning and 129.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:09:35,648 INFO L168 Benchmark]: Boogie Preprocessor took 29.14 ms. Allocated memory is still 152.0 MB. Free memory was 129.5 MB in the beginning and 127.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:09:35,649 INFO L168 Benchmark]: RCFGBuilder took 595.88 ms. Allocated memory is still 152.0 MB. Free memory was 127.9 MB in the beginning and 106.4 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:09:35,649 INFO L168 Benchmark]: TraceAbstraction took 5461.19 ms. Allocated memory was 152.0 MB in the beginning and 229.6 MB in the end (delta: 77.6 MB). Free memory was 105.9 MB in the beginning and 121.0 MB in the end (delta: -15.1 MB). Peak memory consumption was 63.6 MB. Max. memory is 8.0 GB. [2020-12-22 11:09:35,650 INFO L168 Benchmark]: Witness Printer took 82.35 ms. Allocated memory is still 229.6 MB. Free memory was 121.0 MB in the beginning and 118.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:09:35,657 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65 ms. Allocated memory is still 152.0 MB. Free memory is still 124.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 855.23 ms. Allocated memory is still 152.0 MB. Free memory was 126.3 MB in the beginning and 131.6 MB in the end (delta: -5.3 MB). Peak memory consumption was 32.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 93.16 ms. Allocated memory is still 152.0 MB. Free memory was 131.6 MB in the beginning and 129.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.14 ms. Allocated memory is still 152.0 MB. Free memory was 129.5 MB in the beginning and 127.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 595.88 ms. Allocated memory is still 152.0 MB. Free memory was 127.9 MB in the beginning and 106.4 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5461.19 ms. Allocated memory was 152.0 MB in the beginning and 229.6 MB in the end (delta: 77.6 MB). Free memory was 105.9 MB in the beginning and 121.0 MB in the end (delta: -15.1 MB). Peak memory consumption was 63.6 MB. Max. memory is 8.0 GB. * Witness Printer took 82.35 ms. Allocated memory is still 229.6 MB. Free memory was 121.0 MB in the beginning and 118.4 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 812 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 9 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 55 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.4s, 80 PlacesBefore, 30 PlacesAfterwards, 72 TransitionsBefore, 21 TransitionsAfterwards, 1212 CoEnabledTransitionPairs, 6 FixpointIterations, 16 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 64 TotalNumberOfCompositions, 2267 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, 71 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.3s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 176 SDtfs, 114 SDslu, 182 SDs, 0 SdLazy, 119 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred 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, 10 MinimizatonAttempts, 107 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 4345 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...