/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/safe008_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:07:10,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:07:10,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:07:10,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:07:10,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:07:10,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:07:10,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:07:10,898 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:07:10,902 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:07:10,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:07:10,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:07:10,911 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:07:10,911 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:07:10,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:07:10,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:07:10,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:07:10,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:07:10,923 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:07:10,930 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:07:10,938 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:07:10,941 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:07:10,943 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:07:10,945 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:07:10,949 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:07:10,955 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:07:10,956 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:07:10,956 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:07:10,958 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:07:10,959 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:07:10,960 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:07:10,961 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:07:10,962 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:07:10,964 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:07:10,965 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:07:10,966 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:07:10,966 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:07:10,967 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:07:10,967 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:07:10,967 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:07:10,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:07:10,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:07:10,978 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:07:11,033 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:07:11,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:07:11,038 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:07:11,038 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:07:11,039 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:07:11,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:07:11,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:07:11,039 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:07:11,039 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:07:11,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:07:11,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:07:11,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:07:11,042 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:07:11,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:07:11,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:07:11,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:07:11,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:07:11,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:07:11,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:07:11,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:07:11,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:07:11,044 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:07:11,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:07:11,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:07:11,045 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:07:11,045 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:07:11,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:07:11,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:07:11,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:07:11,507 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:07:11,508 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:07:11,512 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe008_tso.oepc.i [2020-12-22 11:07:11,611 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/375716af4/99f8149a8db14d568c2d0e8b0badb765/FLAGb5c5e22b6 [2020-12-22 11:07:12,395 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:07:12,396 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe008_tso.oepc.i [2020-12-22 11:07:12,417 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/375716af4/99f8149a8db14d568c2d0e8b0badb765/FLAGb5c5e22b6 [2020-12-22 11:07:12,681 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/375716af4/99f8149a8db14d568c2d0e8b0badb765 [2020-12-22 11:07:12,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:07:12,687 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:07:12,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:07:12,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:07:12,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:07:12,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:07:12" (1/1) ... [2020-12-22 11:07:12,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ed84099 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:12, skipping insertion in model container [2020-12-22 11:07:12,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:07:12" (1/1) ... [2020-12-22 11:07:12,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:07:12,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:07:12,940 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/safe008_tso.oepc.i[950,963] [2020-12-22 11:07:13,162 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:07:13,173 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:07:13,191 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/safe008_tso.oepc.i[950,963] [2020-12-22 11:07:13,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:07:13,374 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:07:13,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:13 WrapperNode [2020-12-22 11:07:13,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:07:13,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:07:13,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:07:13,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:07:13,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:13" (1/1) ... [2020-12-22 11:07:13,403 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:13" (1/1) ... [2020-12-22 11:07:13,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:07:13,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:07:13,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:07:13,429 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:07:13,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:13" (1/1) ... [2020-12-22 11:07:13,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:13" (1/1) ... [2020-12-22 11:07:13,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:13" (1/1) ... [2020-12-22 11:07:13,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:13" (1/1) ... [2020-12-22 11:07:13,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:13" (1/1) ... [2020-12-22 11:07:13,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:13" (1/1) ... [2020-12-22 11:07:13,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:13" (1/1) ... [2020-12-22 11:07:13,458 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:07:13,459 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:07:13,459 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:07:13,459 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:07:13,460 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:07:13,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:07:13,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-22 11:07:13,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:07:13,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:07:13,575 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-22 11:07:13,575 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-22 11:07:13,575 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-22 11:07:13,575 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-22 11:07:13,575 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-22 11:07:13,576 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-22 11:07:13,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:07:13,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-22 11:07:13,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:07:13,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:07:13,578 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-22 11:07:13,963 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:07:13,963 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-22 11:07:13,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:07:13 BoogieIcfgContainer [2020-12-22 11:07:13,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:07:13,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:07:13,969 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:07:13,978 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:07:13,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:07:12" (1/3) ... [2020-12-22 11:07:13,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@80f9c18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:07:13, skipping insertion in model container [2020-12-22 11:07:13,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:07:13" (2/3) ... [2020-12-22 11:07:13,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@80f9c18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:07:13, skipping insertion in model container [2020-12-22 11:07:13,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:07:13" (3/3) ... [2020-12-22 11:07:13,988 INFO L111 eAbstractionObserver]: Analyzing ICFG safe008_tso.oepc.i [2020-12-22 11:07:14,006 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-22 11:07:14,006 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:07:14,018 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 11:07:14,020 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-22 11:07:14,096 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,096 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,096 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,097 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,097 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,097 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,097 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,098 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,098 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,098 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,099 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,099 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,100 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,100 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,100 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,100 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,100 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,101 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,101 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,101 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,101 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,102 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,102 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,102 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,103 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,103 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,103 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,103 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,103 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,104 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,104 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,104 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,105 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,105 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,105 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,105 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,108 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,108 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,108 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,109 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,121 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,122 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,122 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,122 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,126 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,126 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,126 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,127 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:07:14,136 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-22 11:07:14,160 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-22 11:07:14,187 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:07:14,187 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:07:14,187 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:07:14,187 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:07:14,187 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:07:14,188 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:07:14,188 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:07:14,188 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:07:14,203 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:07:14,206 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 75 transitions, 165 flow [2020-12-22 11:07:14,209 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 75 transitions, 165 flow [2020-12-22 11:07:14,212 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2020-12-22 11:07:14,281 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2020-12-22 11:07:14,281 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-22 11:07:14,300 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2020-12-22 11:07:14,303 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2020-12-22 11:07:17,259 WARN L197 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-12-22 11:07:17,375 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-22 11:07:17,610 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-12-22 11:07:17,717 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-22 11:07:17,723 INFO L131 LiptonReduction]: Checked pairs total: 2563 [2020-12-22 11:07:17,723 INFO L133 LiptonReduction]: Total number of compositions: 61 [2020-12-22 11:07:17,730 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-12-22 11:07:17,762 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-12-22 11:07:17,764 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-12-22 11:07:17,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 11:07:17,772 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:17,773 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:17,773 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:17,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:17,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1485857802, now seen corresponding path program 1 times [2020-12-22 11:07:17,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:17,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104696856] [2020-12-22 11:07:17,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:17,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:18,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:07:18,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104696856] [2020-12-22 11:07:18,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:18,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:07:18,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579504037] [2020-12-22 11:07:18,017 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 11:07:18,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:18,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 11:07:18,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:07:18,037 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-12-22 11:07:18,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:18,073 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-12-22 11:07:18,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 11:07:18,074 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-22 11:07:18,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:18,092 INFO L225 Difference]: With dead ends: 362 [2020-12-22 11:07:18,092 INFO L226 Difference]: Without dead ends: 298 [2020-12-22 11:07:18,094 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:07:18,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-12-22 11:07:18,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-12-22 11:07:18,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-12-22 11:07:18,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-12-22 11:07:18,187 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-12-22 11:07:18,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:18,188 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-12-22 11:07:18,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 11:07:18,188 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-12-22 11:07:18,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 11:07:18,192 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:18,192 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:18,193 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:07:18,193 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:18,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:18,194 INFO L82 PathProgramCache]: Analyzing trace with hash 1183024898, now seen corresponding path program 1 times [2020-12-22 11:07:18,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:18,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353928546] [2020-12-22 11:07:18,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:18,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:18,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:07:18,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353928546] [2020-12-22 11:07:18,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:18,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:07:18,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388683976] [2020-12-22 11:07:18,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:07:18,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:18,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:07:18,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:07:18,391 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-12-22 11:07:18,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:18,471 INFO L93 Difference]: Finished difference Result 510 states and 1386 transitions. [2020-12-22 11:07:18,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:07:18,471 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-22 11:07:18,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:18,479 INFO L225 Difference]: With dead ends: 510 [2020-12-22 11:07:18,479 INFO L226 Difference]: Without dead ends: 380 [2020-12-22 11:07:18,480 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:07:18,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-12-22 11:07:18,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 320. [2020-12-22 11:07:18,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2020-12-22 11:07:18,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 900 transitions. [2020-12-22 11:07:18,550 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 900 transitions. Word has length 9 [2020-12-22 11:07:18,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:18,551 INFO L481 AbstractCegarLoop]: Abstraction has 320 states and 900 transitions. [2020-12-22 11:07:18,551 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:07:18,551 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 900 transitions. [2020-12-22 11:07:18,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:07:18,555 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:18,555 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:18,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:07:18,555 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:18,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:18,560 INFO L82 PathProgramCache]: Analyzing trace with hash 995647992, now seen corresponding path program 1 times [2020-12-22 11:07:18,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:18,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499851117] [2020-12-22 11:07:18,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:18,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:18,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:07:18,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499851117] [2020-12-22 11:07:18,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:18,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:07:18,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828549763] [2020-12-22 11:07:18,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:07:18,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:18,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:07:18,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:07:18,738 INFO L87 Difference]: Start difference. First operand 320 states and 900 transitions. Second operand 5 states. [2020-12-22 11:07:18,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:18,808 INFO L93 Difference]: Finished difference Result 428 states and 1125 transitions. [2020-12-22 11:07:18,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:07:18,809 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-22 11:07:18,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:18,812 INFO L225 Difference]: With dead ends: 428 [2020-12-22 11:07:18,812 INFO L226 Difference]: Without dead ends: 350 [2020-12-22 11:07:18,813 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:07:18,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2020-12-22 11:07:18,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 290. [2020-12-22 11:07:18,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-12-22 11:07:18,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 796 transitions. [2020-12-22 11:07:18,829 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 796 transitions. Word has length 10 [2020-12-22 11:07:18,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:18,829 INFO L481 AbstractCegarLoop]: Abstraction has 290 states and 796 transitions. [2020-12-22 11:07:18,829 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:07:18,830 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 796 transitions. [2020-12-22 11:07:18,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:07:18,831 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:18,832 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:18,832 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:07:18,832 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:18,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:18,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1980956361, now seen corresponding path program 1 times [2020-12-22 11:07:18,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:18,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515071673] [2020-12-22 11:07:18,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:18,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:07:18,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515071673] [2020-12-22 11:07:18,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:18,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:07:18,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106754637] [2020-12-22 11:07:18,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:07:18,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:18,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:07:18,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:07:18,937 INFO L87 Difference]: Start difference. First operand 290 states and 796 transitions. Second operand 5 states. [2020-12-22 11:07:18,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:18,986 INFO L93 Difference]: Finished difference Result 404 states and 1037 transitions. [2020-12-22 11:07:18,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:07:18,987 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-22 11:07:18,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:18,990 INFO L225 Difference]: With dead ends: 404 [2020-12-22 11:07:18,990 INFO L226 Difference]: Without dead ends: 326 [2020-12-22 11:07:18,990 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:07:18,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-12-22 11:07:18,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 278. [2020-12-22 11:07:19,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-12-22 11:07:19,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 754 transitions. [2020-12-22 11:07:19,002 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 754 transitions. Word has length 10 [2020-12-22 11:07:19,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:19,002 INFO L481 AbstractCegarLoop]: Abstraction has 278 states and 754 transitions. [2020-12-22 11:07:19,002 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:07:19,003 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 754 transitions. [2020-12-22 11:07:19,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 11:07:19,004 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:19,004 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:19,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 11:07:19,005 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:19,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:19,005 INFO L82 PathProgramCache]: Analyzing trace with hash 800294145, now seen corresponding path program 1 times [2020-12-22 11:07:19,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:19,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674064522] [2020-12-22 11:07:19,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:19,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:19,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:07:19,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674064522] [2020-12-22 11:07:19,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:19,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:07:19,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956068665] [2020-12-22 11:07:19,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:07:19,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:19,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:07:19,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:07:19,073 INFO L87 Difference]: Start difference. First operand 278 states and 754 transitions. Second operand 5 states. [2020-12-22 11:07:19,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:19,150 INFO L93 Difference]: Finished difference Result 419 states and 1082 transitions. [2020-12-22 11:07:19,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 11:07:19,151 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-12-22 11:07:19,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:19,153 INFO L225 Difference]: With dead ends: 419 [2020-12-22 11:07:19,153 INFO L226 Difference]: Without dead ends: 338 [2020-12-22 11:07:19,154 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 11:07:19,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2020-12-22 11:07:19,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 284. [2020-12-22 11:07:19,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-12-22 11:07:19,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 767 transitions. [2020-12-22 11:07:19,164 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 767 transitions. Word has length 11 [2020-12-22 11:07:19,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:19,164 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 767 transitions. [2020-12-22 11:07:19,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:07:19,164 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 767 transitions. [2020-12-22 11:07:19,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 11:07:19,166 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:19,166 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:19,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 11:07:19,166 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:19,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:19,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1280130465, now seen corresponding path program 2 times [2020-12-22 11:07:19,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:19,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147210913] [2020-12-22 11:07:19,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:19,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:07:19,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147210913] [2020-12-22 11:07:19,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:19,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:07:19,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108317697] [2020-12-22 11:07:19,237 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:07:19,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:19,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:07:19,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:07:19,240 INFO L87 Difference]: Start difference. First operand 284 states and 767 transitions. Second operand 6 states. [2020-12-22 11:07:19,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:19,284 INFO L93 Difference]: Finished difference Result 350 states and 895 transitions. [2020-12-22 11:07:19,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:07:19,285 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-12-22 11:07:19,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:19,286 INFO L225 Difference]: With dead ends: 350 [2020-12-22 11:07:19,287 INFO L226 Difference]: Without dead ends: 182 [2020-12-22 11:07:19,287 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-22 11:07:19,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-12-22 11:07:19,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 158. [2020-12-22 11:07:19,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-12-22 11:07:19,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 382 transitions. [2020-12-22 11:07:19,295 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 382 transitions. Word has length 11 [2020-12-22 11:07:19,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:19,296 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 382 transitions. [2020-12-22 11:07:19,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:07:19,296 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 382 transitions. [2020-12-22 11:07:19,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 11:07:19,297 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:19,297 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:19,297 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 11:07:19,297 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:19,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:19,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1283691266, now seen corresponding path program 1 times [2020-12-22 11:07:19,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:19,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252534285] [2020-12-22 11:07:19,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:19,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:19,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:07:19,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252534285] [2020-12-22 11:07:19,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:19,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:07:19,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526574839] [2020-12-22 11:07:19,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:07:19,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:19,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:07:19,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:07:19,413 INFO L87 Difference]: Start difference. First operand 158 states and 382 transitions. Second operand 5 states. [2020-12-22 11:07:19,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:19,452 INFO L93 Difference]: Finished difference Result 196 states and 453 transitions. [2020-12-22 11:07:19,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:07:19,453 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-22 11:07:19,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:19,454 INFO L225 Difference]: With dead ends: 196 [2020-12-22 11:07:19,454 INFO L226 Difference]: Without dead ends: 82 [2020-12-22 11:07:19,454 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 11:07:19,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-12-22 11:07:19,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-12-22 11:07:19,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-12-22 11:07:19,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 170 transitions. [2020-12-22 11:07:19,458 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 170 transitions. Word has length 13 [2020-12-22 11:07:19,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:19,458 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 170 transitions. [2020-12-22 11:07:19,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:07:19,458 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 170 transitions. [2020-12-22 11:07:19,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 11:07:19,459 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:19,459 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:19,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 11:07:19,459 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:19,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:19,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1802492984, now seen corresponding path program 1 times [2020-12-22 11:07:19,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:19,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220723781] [2020-12-22 11:07:19,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:19,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:19,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:07:19,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220723781] [2020-12-22 11:07:19,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:19,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:07:19,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042051469] [2020-12-22 11:07:19,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:07:19,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:19,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:07:19,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:07:19,512 INFO L87 Difference]: Start difference. First operand 82 states and 170 transitions. Second operand 4 states. [2020-12-22 11:07:19,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:19,534 INFO L93 Difference]: Finished difference Result 84 states and 159 transitions. [2020-12-22 11:07:19,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:07:19,534 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-12-22 11:07:19,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:19,535 INFO L225 Difference]: With dead ends: 84 [2020-12-22 11:07:19,535 INFO L226 Difference]: Without dead ends: 70 [2020-12-22 11:07:19,537 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:07:19,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-12-22 11:07:19,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-12-22 11:07:19,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-12-22 11:07:19,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 133 transitions. [2020-12-22 11:07:19,540 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 133 transitions. Word has length 14 [2020-12-22 11:07:19,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:19,540 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 133 transitions. [2020-12-22 11:07:19,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:07:19,541 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 133 transitions. [2020-12-22 11:07:19,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 11:07:19,541 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:19,541 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:19,542 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 11:07:19,542 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:19,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:19,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1849440776, now seen corresponding path program 1 times [2020-12-22 11:07:19,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:19,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740226688] [2020-12-22 11:07:19,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:19,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:07:19,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740226688] [2020-12-22 11:07:19,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:19,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:07:19,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953198928] [2020-12-22 11:07:19,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:07:19,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:19,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:07:19,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:07:19,621 INFO L87 Difference]: Start difference. First operand 70 states and 133 transitions. Second operand 5 states. [2020-12-22 11:07:19,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:19,653 INFO L93 Difference]: Finished difference Result 60 states and 106 transitions. [2020-12-22 11:07:19,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:07:19,653 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-12-22 11:07:19,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:19,654 INFO L225 Difference]: With dead ends: 60 [2020-12-22 11:07:19,654 INFO L226 Difference]: Without dead ends: 52 [2020-12-22 11:07:19,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:07:19,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-12-22 11:07:19,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-12-22 11:07:19,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-22 11:07:19,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 91 transitions. [2020-12-22 11:07:19,657 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 91 transitions. Word has length 15 [2020-12-22 11:07:19,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:19,657 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 91 transitions. [2020-12-22 11:07:19,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:07:19,657 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 91 transitions. [2020-12-22 11:07:19,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 11:07:19,658 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:07:19,658 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:07:19,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 11:07:19,658 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:07:19,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:07:19,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1050921859, now seen corresponding path program 1 times [2020-12-22 11:07:19,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:07:19,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503054441] [2020-12-22 11:07:19,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:07:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:07:19,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:07:19,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503054441] [2020-12-22 11:07:19,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:07:19,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:07:19,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199339688] [2020-12-22 11:07:19,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:07:19,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:07:19,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:07:19,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:07:19,760 INFO L87 Difference]: Start difference. First operand 52 states and 91 transitions. Second operand 6 states. [2020-12-22 11:07:19,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:07:19,783 INFO L93 Difference]: Finished difference Result 46 states and 83 transitions. [2020-12-22 11:07:19,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:07:19,783 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-12-22 11:07:19,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:07:19,784 INFO L225 Difference]: With dead ends: 46 [2020-12-22 11:07:19,784 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 11:07:19,784 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:07:19,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 11:07:19,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 11:07:19,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 11:07:19,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 11:07:19,785 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-12-22 11:07:19,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:07:19,786 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 11:07:19,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:07:19,786 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 11:07:19,786 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 11:07:19,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 11:07:19,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:07:19 BasicIcfg [2020-12-22 11:07:19,790 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 11:07:19,791 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 11:07:19,791 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 11:07:19,791 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 11:07:19,792 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:07:13" (3/4) ... [2020-12-22 11:07:19,796 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 11:07:19,803 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-22 11:07:19,804 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-22 11:07:19,804 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-22 11:07:19,813 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-22 11:07:19,813 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 11:07:19,813 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:07:19,813 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:07:19,862 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe008_tso.oepc.i-witness.graphml [2020-12-22 11:07:19,862 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 11:07:19,864 INFO L168 Benchmark]: Toolchain (without parser) took 7177.05 ms. Allocated memory was 152.0 MB in the beginning and 219.2 MB in the end (delta: 67.1 MB). Free memory was 125.1 MB in the beginning and 167.6 MB in the end (delta: -42.5 MB). Peak memory consumption was 25.8 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:19,864 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 152.0 MB. Free memory is still 126.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:07:19,865 INFO L168 Benchmark]: CACSL2BoogieTranslator took 683.42 ms. Allocated memory is still 152.0 MB. Free memory was 124.9 MB in the beginning and 129.8 MB in the end (delta: -4.8 MB). Peak memory consumption was 32.7 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:19,866 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.82 ms. Allocated memory is still 152.0 MB. Free memory was 129.8 MB in the beginning and 127.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:19,866 INFO L168 Benchmark]: Boogie Preprocessor took 29.72 ms. Allocated memory is still 152.0 MB. Free memory was 127.7 MB in the beginning and 126.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:19,867 INFO L168 Benchmark]: RCFGBuilder took 508.68 ms. Allocated memory is still 152.0 MB. Free memory was 126.6 MB in the beginning and 104.6 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:19,868 INFO L168 Benchmark]: TraceAbstraction took 5821.19 ms. Allocated memory was 152.0 MB in the beginning and 219.2 MB in the end (delta: 67.1 MB). Free memory was 104.1 MB in the beginning and 170.3 MB in the end (delta: -66.2 MB). Peak memory consumption was 397.2 kB. Max. memory is 8.0 GB. [2020-12-22 11:07:19,868 INFO L168 Benchmark]: Witness Printer took 71.69 ms. Allocated memory is still 219.2 MB. Free memory was 170.3 MB in the beginning and 167.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:07:19,873 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 152.0 MB. Free memory is still 126.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 683.42 ms. Allocated memory is still 152.0 MB. Free memory was 124.9 MB in the beginning and 129.8 MB in the end (delta: -4.8 MB). Peak memory consumption was 32.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 51.82 ms. Allocated memory is still 152.0 MB. Free memory was 129.8 MB in the beginning and 127.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.72 ms. Allocated memory is still 152.0 MB. Free memory was 127.7 MB in the beginning and 126.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 508.68 ms. Allocated memory is still 152.0 MB. Free memory was 126.6 MB in the beginning and 104.6 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5821.19 ms. Allocated memory was 152.0 MB in the beginning and 219.2 MB in the end (delta: 67.1 MB). Free memory was 104.1 MB in the beginning and 170.3 MB in the end (delta: -66.2 MB). Peak memory consumption was 397.2 kB. Max. memory is 8.0 GB. * Witness Printer took 71.69 ms. Allocated memory is still 219.2 MB. Free memory was 170.3 MB in the beginning and 167.6 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 768 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 68 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.5s, 83 PlacesBefore, 32 PlacesAfterwards, 75 TransitionsBefore, 23 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 61 TotalNumberOfCompositions, 2563 MoverChecksTotal - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.6s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 235 SDtfs, 269 SDslu, 400 SDs, 0 SdLazy, 135 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 246 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 107 ConstructedInterpolants, 0 QuantifiedInterpolants, 5519 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...