/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/safe019_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:10:20,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:10:20,369 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:10:20,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:10:20,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:10:20,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:10:20,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:10:20,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:10:20,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:10:20,418 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:10:20,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:10:20,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:10:20,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:10:20,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:10:20,425 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:10:20,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:10:20,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:10:20,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:10:20,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:10:20,434 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:10:20,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:10:20,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:10:20,439 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:10:20,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:10:20,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:10:20,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:10:20,477 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:10:20,478 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:10:20,479 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:10:20,480 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:10:20,481 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:10:20,482 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:10:20,483 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:10:20,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:10:20,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:10:20,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:10:20,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:10:20,487 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:10:20,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:10:20,489 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:10:20,490 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:10:20,491 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:10:20,521 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:10:20,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:10:20,524 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:10:20,524 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:10:20,525 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:10:20,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:10:20,525 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:10:20,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:10:20,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:10:20,526 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:10:20,526 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:10:20,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:10:20,527 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:10:20,527 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:10:20,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:10:20,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:10:20,528 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:10:20,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:10:20,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:10:20,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:10:20,530 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:10:20,530 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:10:20,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:10:20,531 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:10:20,531 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:10:20,531 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:10:20,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:10:21,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:10:21,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:10:21,026 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:10:21,028 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:10:21,029 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe019_tso.oepc.i [2020-12-22 11:10:21,128 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9701b4a47/82ef1ca81fcc4177aff97926e83f1064/FLAG079d2e38b [2020-12-22 11:10:22,094 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:10:22,095 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe019_tso.oepc.i [2020-12-22 11:10:22,114 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9701b4a47/82ef1ca81fcc4177aff97926e83f1064/FLAG079d2e38b [2020-12-22 11:10:22,258 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9701b4a47/82ef1ca81fcc4177aff97926e83f1064 [2020-12-22 11:10:22,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:10:22,269 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:10:22,273 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:10:22,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:10:22,279 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:10:22,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:10:22" (1/1) ... [2020-12-22 11:10:22,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21048087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:22, skipping insertion in model container [2020-12-22 11:10:22,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:10:22" (1/1) ... [2020-12-22 11:10:22,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:10:22,355 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:10:22,584 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/safe019_tso.oepc.i[950,963] [2020-12-22 11:10:22,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:10:22,947 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:10:22,967 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/safe019_tso.oepc.i[950,963] [2020-12-22 11:10:23,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:10:23,207 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:10:23,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:23 WrapperNode [2020-12-22 11:10:23,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:10:23,209 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:10:23,210 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:10:23,210 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:10:23,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:23" (1/1) ... [2020-12-22 11:10:23,242 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:23" (1/1) ... [2020-12-22 11:10:23,273 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:10:23,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:10:23,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:10:23,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:10:23,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:23" (1/1) ... [2020-12-22 11:10:23,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:23" (1/1) ... [2020-12-22 11:10:23,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:23" (1/1) ... [2020-12-22 11:10:23,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:23" (1/1) ... [2020-12-22 11:10:23,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:23" (1/1) ... [2020-12-22 11:10:23,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:23" (1/1) ... [2020-12-22 11:10:23,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:23" (1/1) ... [2020-12-22 11:10:23,314 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:10:23,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:10:23,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:10:23,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:10:23,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:23" (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 11:10:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:10:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-22 11:10:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:10:23,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:10:23,459 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-22 11:10:23,459 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-22 11:10:23,459 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-22 11:10:23,459 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-22 11:10:23,460 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-12-22 11:10:23,460 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-12-22 11:10:23,460 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-12-22 11:10:23,460 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-12-22 11:10:23,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:10:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-22 11:10:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:10:23,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:10:23,463 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 11:10:23,989 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:10:23,989 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-22 11:10:23,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:10:23 BoogieIcfgContainer [2020-12-22 11:10:23,993 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:10:23,995 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:10:23,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:10:24,000 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:10:24,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:10:22" (1/3) ... [2020-12-22 11:10:24,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@472dab21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:10:24, skipping insertion in model container [2020-12-22 11:10:24,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:10:23" (2/3) ... [2020-12-22 11:10:24,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@472dab21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:10:24, skipping insertion in model container [2020-12-22 11:10:24,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:10:23" (3/3) ... [2020-12-22 11:10:24,005 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.oepc.i [2020-12-22 11:10:24,014 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-22 11:10:24,014 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:10:24,020 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 11:10:24,021 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-22 11:10:24,071 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,071 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,071 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,072 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,072 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,072 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,073 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,073 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,073 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,075 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,075 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,075 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,075 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,076 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,076 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,076 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,076 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,078 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,078 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,078 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,079 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,079 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,079 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,079 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,080 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,080 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,080 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,081 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,082 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,082 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,082 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,083 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,083 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,083 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,084 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,084 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,084 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,084 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,085 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,085 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,085 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,085 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,088 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,089 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,089 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,089 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,097 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,097 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,097 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,098 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,101 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,101 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,102 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,106 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,106 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:10:24,109 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-22 11:10:24,138 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-12-22 11:10:24,167 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:10:24,167 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:10:24,168 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:10:24,168 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:10:24,168 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:10:24,168 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:10:24,168 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:10:24,168 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:10:24,186 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:10:24,189 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 86 transitions, 192 flow [2020-12-22 11:10:24,193 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 86 transitions, 192 flow [2020-12-22 11:10:24,196 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-12-22 11:10:24,295 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-12-22 11:10:24,295 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-22 11:10:24,313 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2020-12-22 11:10:24,326 INFO L116 LiptonReduction]: Number of co-enabled transitions 1866 [2020-12-22 11:10:29,234 WARN L197 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-12-22 11:10:29,362 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-22 11:10:29,633 WARN L197 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-12-22 11:10:29,756 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-22 11:10:29,925 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-12-22 11:10:30,123 INFO L131 LiptonReduction]: Checked pairs total: 2978 [2020-12-22 11:10:30,124 INFO L133 LiptonReduction]: Total number of compositions: 68 [2020-12-22 11:10:30,132 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 25 transitions, 70 flow [2020-12-22 11:10:30,190 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-12-22 11:10:30,192 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-12-22 11:10:30,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 11:10:30,203 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:30,204 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:30,205 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:30,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:30,212 INFO L82 PathProgramCache]: Analyzing trace with hash -36259415, now seen corresponding path program 1 times [2020-12-22 11:10:30,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:30,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036868687] [2020-12-22 11:10:30,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:30,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:30,596 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 11:10:30,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036868687] [2020-12-22 11:10:30,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:30,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-22 11:10:30,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674224302] [2020-12-22 11:10:30,611 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:10:30,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:30,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:10:30,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:10:30,635 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-12-22 11:10:30,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:30,727 INFO L93 Difference]: Finished difference Result 1072 states and 3535 transitions. [2020-12-22 11:10:30,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:10:30,734 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-22 11:10:30,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:30,775 INFO L225 Difference]: With dead ends: 1072 [2020-12-22 11:10:30,776 INFO L226 Difference]: Without dead ends: 745 [2020-12-22 11:10:30,777 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 11:10:30,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2020-12-22 11:10:30,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 679. [2020-12-22 11:10:30,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 679 states. [2020-12-22 11:10:30,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 2220 transitions. [2020-12-22 11:10:30,920 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 2220 transitions. Word has length 10 [2020-12-22 11:10:30,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:30,921 INFO L481 AbstractCegarLoop]: Abstraction has 679 states and 2220 transitions. [2020-12-22 11:10:30,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:10:30,922 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 2220 transitions. [2020-12-22 11:10:30,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 11:10:30,927 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:30,927 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:30,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:10:30,927 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:30,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:30,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1165014530, now seen corresponding path program 1 times [2020-12-22 11:10:30,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:30,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554466844] [2020-12-22 11:10:30,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:31,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:31,094 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 11:10:31,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554466844] [2020-12-22 11:10:31,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:31,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:10:31,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083263093] [2020-12-22 11:10:31,097 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:10:31,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:31,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:10:31,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:10:31,103 INFO L87 Difference]: Start difference. First operand 679 states and 2220 transitions. Second operand 4 states. [2020-12-22 11:10:31,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:31,134 INFO L93 Difference]: Finished difference Result 700 states and 2225 transitions. [2020-12-22 11:10:31,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:10:31,135 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-22 11:10:31,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:31,143 INFO L225 Difference]: With dead ends: 700 [2020-12-22 11:10:31,143 INFO L226 Difference]: Without dead ends: 700 [2020-12-22 11:10:31,145 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 11:10:31,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2020-12-22 11:10:31,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 652. [2020-12-22 11:10:31,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 652 states. [2020-12-22 11:10:31,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 2109 transitions. [2020-12-22 11:10:31,206 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 2109 transitions. Word has length 11 [2020-12-22 11:10:31,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:31,206 INFO L481 AbstractCegarLoop]: Abstraction has 652 states and 2109 transitions. [2020-12-22 11:10:31,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:10:31,207 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 2109 transitions. [2020-12-22 11:10:31,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 11:10:31,209 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:31,210 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:31,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:10:31,210 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:31,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:31,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1124043458, now seen corresponding path program 1 times [2020-12-22 11:10:31,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:31,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051564131] [2020-12-22 11:10:31,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:31,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:31,333 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 11:10:31,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051564131] [2020-12-22 11:10:31,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:31,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:10:31,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618599746] [2020-12-22 11:10:31,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:10:31,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:31,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:10:31,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:10:31,339 INFO L87 Difference]: Start difference. First operand 652 states and 2109 transitions. Second operand 4 states. [2020-12-22 11:10:31,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:31,378 INFO L93 Difference]: Finished difference Result 664 states and 2099 transitions. [2020-12-22 11:10:31,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:10:31,379 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-22 11:10:31,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:31,387 INFO L225 Difference]: With dead ends: 664 [2020-12-22 11:10:31,387 INFO L226 Difference]: Without dead ends: 664 [2020-12-22 11:10:31,388 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 11:10:31,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2020-12-22 11:10:31,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 604. [2020-12-22 11:10:31,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 604 states. [2020-12-22 11:10:31,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 1939 transitions. [2020-12-22 11:10:31,427 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 1939 transitions. Word has length 11 [2020-12-22 11:10:31,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:31,428 INFO L481 AbstractCegarLoop]: Abstraction has 604 states and 1939 transitions. [2020-12-22 11:10:31,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:10:31,428 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 1939 transitions. [2020-12-22 11:10:31,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 11:10:31,434 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:31,434 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:31,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:10:31,434 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:31,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:31,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1755710469, now seen corresponding path program 1 times [2020-12-22 11:10:31,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:31,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191472652] [2020-12-22 11:10:31,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:31,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:31,579 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 11:10:31,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191472652] [2020-12-22 11:10:31,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:31,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:10:31,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631482773] [2020-12-22 11:10:31,584 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:10:31,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:31,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:10:31,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:10:31,586 INFO L87 Difference]: Start difference. First operand 604 states and 1939 transitions. Second operand 5 states. [2020-12-22 11:10:31,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:31,644 INFO L93 Difference]: Finished difference Result 856 states and 2659 transitions. [2020-12-22 11:10:31,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:10:31,645 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-22 11:10:31,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:31,650 INFO L225 Difference]: With dead ends: 856 [2020-12-22 11:10:31,651 INFO L226 Difference]: Without dead ends: 472 [2020-12-22 11:10:31,651 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:10:31,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2020-12-22 11:10:31,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 436. [2020-12-22 11:10:31,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 436 states. [2020-12-22 11:10:31,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 1375 transitions. [2020-12-22 11:10:31,674 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 1375 transitions. Word has length 12 [2020-12-22 11:10:31,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:31,674 INFO L481 AbstractCegarLoop]: Abstraction has 436 states and 1375 transitions. [2020-12-22 11:10:31,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:10:31,674 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 1375 transitions. [2020-12-22 11:10:31,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 11:10:31,675 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:31,676 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:31,676 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 11:10:31,676 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:31,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:31,677 INFO L82 PathProgramCache]: Analyzing trace with hash -485610361, now seen corresponding path program 2 times [2020-12-22 11:10:31,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:31,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106909233] [2020-12-22 11:10:31,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:31,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:31,733 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 11:10:31,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106909233] [2020-12-22 11:10:31,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:31,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:10:31,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329463085] [2020-12-22 11:10:31,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:10:31,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:31,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:10:31,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:10:31,736 INFO L87 Difference]: Start difference. First operand 436 states and 1375 transitions. Second operand 4 states. [2020-12-22 11:10:31,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:31,767 INFO L93 Difference]: Finished difference Result 478 states and 1466 transitions. [2020-12-22 11:10:31,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:10:31,768 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-12-22 11:10:31,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:31,773 INFO L225 Difference]: With dead ends: 478 [2020-12-22 11:10:31,773 INFO L226 Difference]: Without dead ends: 478 [2020-12-22 11:10:31,774 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 11:10:31,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2020-12-22 11:10:31,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 418. [2020-12-22 11:10:31,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-12-22 11:10:31,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 1306 transitions. [2020-12-22 11:10:31,794 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 1306 transitions. Word has length 12 [2020-12-22 11:10:31,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:31,795 INFO L481 AbstractCegarLoop]: Abstraction has 418 states and 1306 transitions. [2020-12-22 11:10:31,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:10:31,795 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 1306 transitions. [2020-12-22 11:10:31,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 11:10:31,796 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:31,796 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:31,797 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 11:10:31,797 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:31,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:31,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1949399229, now seen corresponding path program 1 times [2020-12-22 11:10:31,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:31,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121134721] [2020-12-22 11:10:31,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:31,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:31,859 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 11:10:31,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121134721] [2020-12-22 11:10:31,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:31,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:10:31,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470479794] [2020-12-22 11:10:31,862 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:10:31,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:31,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:10:31,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:10:31,863 INFO L87 Difference]: Start difference. First operand 418 states and 1306 transitions. Second operand 4 states. [2020-12-22 11:10:31,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:31,903 INFO L93 Difference]: Finished difference Result 532 states and 1601 transitions. [2020-12-22 11:10:31,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:10:31,904 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-12-22 11:10:31,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:31,908 INFO L225 Difference]: With dead ends: 532 [2020-12-22 11:10:31,909 INFO L226 Difference]: Without dead ends: 412 [2020-12-22 11:10:31,909 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 11:10:31,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-12-22 11:10:31,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 376. [2020-12-22 11:10:31,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-12-22 11:10:31,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 1137 transitions. [2020-12-22 11:10:31,929 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 1137 transitions. Word has length 13 [2020-12-22 11:10:31,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:31,930 INFO L481 AbstractCegarLoop]: Abstraction has 376 states and 1137 transitions. [2020-12-22 11:10:31,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:10:31,930 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 1137 transitions. [2020-12-22 11:10:31,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 11:10:31,932 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:31,932 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:31,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 11:10:31,933 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:31,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:31,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1949381931, now seen corresponding path program 1 times [2020-12-22 11:10:31,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:31,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665372287] [2020-12-22 11:10:31,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:31,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:32,036 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 11:10:32,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665372287] [2020-12-22 11:10:32,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:32,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:10:32,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681842254] [2020-12-22 11:10:32,040 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:10:32,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:32,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:10:32,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:10:32,042 INFO L87 Difference]: Start difference. First operand 376 states and 1137 transitions. Second operand 4 states. [2020-12-22 11:10:32,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:32,076 INFO L93 Difference]: Finished difference Result 526 states and 1530 transitions. [2020-12-22 11:10:32,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:10:32,077 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-12-22 11:10:32,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:32,080 INFO L225 Difference]: With dead ends: 526 [2020-12-22 11:10:32,080 INFO L226 Difference]: Without dead ends: 274 [2020-12-22 11:10:32,081 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 11:10:32,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-12-22 11:10:32,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2020-12-22 11:10:32,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-12-22 11:10:32,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 775 transitions. [2020-12-22 11:10:32,095 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 775 transitions. Word has length 13 [2020-12-22 11:10:32,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:32,095 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 775 transitions. [2020-12-22 11:10:32,096 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:10:32,096 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 775 transitions. [2020-12-22 11:10:32,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 11:10:32,100 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:32,103 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:32,103 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 11:10:32,106 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:32,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:32,109 INFO L82 PathProgramCache]: Analyzing trace with hash 2123867267, now seen corresponding path program 1 times [2020-12-22 11:10:32,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:32,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762364922] [2020-12-22 11:10:32,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:32,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:32,231 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 11:10:32,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762364922] [2020-12-22 11:10:32,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:32,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:10:32,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822367526] [2020-12-22 11:10:32,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:10:32,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:32,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:10:32,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:10:32,236 INFO L87 Difference]: Start difference. First operand 274 states and 775 transitions. Second operand 4 states. [2020-12-22 11:10:32,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:32,289 INFO L93 Difference]: Finished difference Result 345 states and 911 transitions. [2020-12-22 11:10:32,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:10:32,290 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-12-22 11:10:32,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:32,292 INFO L225 Difference]: With dead ends: 345 [2020-12-22 11:10:32,292 INFO L226 Difference]: Without dead ends: 252 [2020-12-22 11:10:32,294 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 11:10:32,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-12-22 11:10:32,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2020-12-22 11:10:32,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-12-22 11:10:32,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 675 transitions. [2020-12-22 11:10:32,305 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 675 transitions. Word has length 14 [2020-12-22 11:10:32,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:32,305 INFO L481 AbstractCegarLoop]: Abstraction has 252 states and 675 transitions. [2020-12-22 11:10:32,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:10:32,305 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 675 transitions. [2020-12-22 11:10:32,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 11:10:32,306 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:32,306 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:32,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 11:10:32,307 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:32,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:32,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1422134941, now seen corresponding path program 1 times [2020-12-22 11:10:32,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:32,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844082025] [2020-12-22 11:10:32,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:32,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:32,429 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 11:10:32,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844082025] [2020-12-22 11:10:32,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:32,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:10:32,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309986214] [2020-12-22 11:10:32,432 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:10:32,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:32,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:10:32,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:10:32,434 INFO L87 Difference]: Start difference. First operand 252 states and 675 transitions. Second operand 5 states. [2020-12-22 11:10:32,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:32,504 INFO L93 Difference]: Finished difference Result 278 states and 685 transitions. [2020-12-22 11:10:32,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:10:32,505 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-12-22 11:10:32,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:32,508 INFO L225 Difference]: With dead ends: 278 [2020-12-22 11:10:32,508 INFO L226 Difference]: Without dead ends: 203 [2020-12-22 11:10:32,509 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 11:10:32,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-12-22 11:10:32,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-12-22 11:10:32,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-12-22 11:10:32,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 492 transitions. [2020-12-22 11:10:32,519 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 492 transitions. Word has length 15 [2020-12-22 11:10:32,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:32,520 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 492 transitions. [2020-12-22 11:10:32,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:10:32,521 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 492 transitions. [2020-12-22 11:10:32,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 11:10:32,522 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:32,522 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:32,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 11:10:32,522 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:32,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:32,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1099628631, now seen corresponding path program 1 times [2020-12-22 11:10:32,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:32,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441744274] [2020-12-22 11:10:32,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:32,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:32,654 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 11:10:32,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441744274] [2020-12-22 11:10:32,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:32,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:10:32,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049220904] [2020-12-22 11:10:32,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:10:32,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:32,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:10:32,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:10:32,658 INFO L87 Difference]: Start difference. First operand 203 states and 492 transitions. Second operand 6 states. [2020-12-22 11:10:32,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:32,722 INFO L93 Difference]: Finished difference Result 200 states and 461 transitions. [2020-12-22 11:10:32,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:10:32,723 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-12-22 11:10:32,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:32,725 INFO L225 Difference]: With dead ends: 200 [2020-12-22 11:10:32,725 INFO L226 Difference]: Without dead ends: 162 [2020-12-22 11:10:32,726 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 11:10:32,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-12-22 11:10:32,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-12-22 11:10:32,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-12-22 11:10:32,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 375 transitions. [2020-12-22 11:10:32,733 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 375 transitions. Word has length 16 [2020-12-22 11:10:32,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:32,733 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 375 transitions. [2020-12-22 11:10:32,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:10:32,733 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 375 transitions. [2020-12-22 11:10:32,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 11:10:32,734 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:32,735 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:32,735 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 11:10:32,735 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:32,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:32,736 INFO L82 PathProgramCache]: Analyzing trace with hash 554738786, now seen corresponding path program 1 times [2020-12-22 11:10:32,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:32,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319972912] [2020-12-22 11:10:32,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:32,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:32,810 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 11:10:32,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319972912] [2020-12-22 11:10:32,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:32,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:10:32,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245390835] [2020-12-22 11:10:32,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 11:10:32,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:32,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 11:10:32,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 11:10:32,819 INFO L87 Difference]: Start difference. First operand 162 states and 375 transitions. Second operand 5 states. [2020-12-22 11:10:32,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:32,857 INFO L93 Difference]: Finished difference Result 194 states and 439 transitions. [2020-12-22 11:10:32,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 11:10:32,858 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-12-22 11:10:32,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:32,861 INFO L225 Difference]: With dead ends: 194 [2020-12-22 11:10:32,861 INFO L226 Difference]: Without dead ends: 127 [2020-12-22 11:10:32,862 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:10:32,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-12-22 11:10:32,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2020-12-22 11:10:32,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-12-22 11:10:32,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 265 transitions. [2020-12-22 11:10:32,867 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 265 transitions. Word has length 18 [2020-12-22 11:10:32,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:32,868 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 265 transitions. [2020-12-22 11:10:32,868 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 11:10:32,868 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 265 transitions. [2020-12-22 11:10:32,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 11:10:32,869 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:32,869 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:32,869 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 11:10:32,869 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:32,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:32,870 INFO L82 PathProgramCache]: Analyzing trace with hash -780782352, now seen corresponding path program 2 times [2020-12-22 11:10:32,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:32,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795252583] [2020-12-22 11:10:32,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:32,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:32,984 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 11:10:32,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795252583] [2020-12-22 11:10:32,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:32,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 11:10:32,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241478922] [2020-12-22 11:10:32,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 11:10:32,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:32,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 11:10:32,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:10:32,987 INFO L87 Difference]: Start difference. First operand 125 states and 265 transitions. Second operand 7 states. [2020-12-22 11:10:33,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:33,070 INFO L93 Difference]: Finished difference Result 120 states and 253 transitions. [2020-12-22 11:10:33,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 11:10:33,070 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-12-22 11:10:33,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:33,072 INFO L225 Difference]: With dead ends: 120 [2020-12-22 11:10:33,072 INFO L226 Difference]: Without dead ends: 71 [2020-12-22 11:10:33,073 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-12-22 11:10:33,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-12-22 11:10:33,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-12-22 11:10:33,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-12-22 11:10:33,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-12-22 11:10:33,076 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 18 [2020-12-22 11:10:33,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:33,076 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-12-22 11:10:33,076 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 11:10:33,077 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-12-22 11:10:33,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-22 11:10:33,077 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:10:33,077 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:10:33,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 11:10:33,078 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:10:33,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:10:33,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1285342776, now seen corresponding path program 1 times [2020-12-22 11:10:33,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:10:33,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840816276] [2020-12-22 11:10:33,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:10:33,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:10:33,169 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 11:10:33,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840816276] [2020-12-22 11:10:33,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:10:33,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:10:33,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872111805] [2020-12-22 11:10:33,170 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:10:33,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:10:33,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:10:33,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:10:33,172 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-12-22 11:10:33,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:10:33,198 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-12-22 11:10:33,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 11:10:33,199 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-12-22 11:10:33,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:10:33,199 INFO L225 Difference]: With dead ends: 70 [2020-12-22 11:10:33,199 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 11:10:33,200 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 11:10:33,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 11:10:33,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 11:10:33,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 11:10:33,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 11:10:33,201 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-12-22 11:10:33,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:10:33,201 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 11:10:33,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:10:33,201 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 11:10:33,202 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 11:10:33,202 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 11:10:33,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:10:33 BasicIcfg [2020-12-22 11:10:33,209 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 11:10:33,210 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 11:10:33,210 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 11:10:33,210 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 11:10:33,211 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:10:23" (3/4) ... [2020-12-22 11:10:33,216 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 11:10:33,225 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-22 11:10:33,225 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-22 11:10:33,225 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-12-22 11:10:33,225 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2020-12-22 11:10:33,234 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2020-12-22 11:10:33,235 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 11:10:33,235 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:10:33,235 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:10:33,308 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe019_tso.oepc.i-witness.graphml [2020-12-22 11:10:33,308 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 11:10:33,310 INFO L168 Benchmark]: Toolchain (without parser) took 11041.83 ms. Allocated memory was 151.0 MB in the beginning and 250.6 MB in the end (delta: 99.6 MB). Free memory was 125.3 MB in the beginning and 153.4 MB in the end (delta: -28.1 MB). Peak memory consumption was 72.3 MB. Max. memory is 8.0 GB. [2020-12-22 11:10:33,313 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 124.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:10:33,314 INFO L168 Benchmark]: CACSL2BoogieTranslator took 935.15 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 125.4 MB in the end (delta: -245.8 kB). Peak memory consumption was 27.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:10:33,314 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.96 ms. Allocated memory is still 151.0 MB. Free memory was 125.4 MB in the beginning and 123.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:10:33,315 INFO L168 Benchmark]: Boogie Preprocessor took 39.64 ms. Allocated memory is still 151.0 MB. Free memory was 123.3 MB in the beginning and 121.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:10:33,315 INFO L168 Benchmark]: RCFGBuilder took 677.05 ms. Allocated memory is still 151.0 MB. Free memory was 121.7 MB in the beginning and 97.6 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:10:33,319 INFO L168 Benchmark]: TraceAbstraction took 9213.45 ms. Allocated memory was 151.0 MB in the beginning and 250.6 MB in the end (delta: 99.6 MB). Free memory was 97.1 MB in the beginning and 156.0 MB in the end (delta: -59.0 MB). Peak memory consumption was 42.2 MB. Max. memory is 8.0 GB. [2020-12-22 11:10:33,320 INFO L168 Benchmark]: Witness Printer took 98.85 ms. Allocated memory is still 250.6 MB. Free memory was 156.0 MB in the beginning and 153.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:10:33,322 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 151.0 MB. Free memory is still 124.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 935.15 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 125.4 MB in the end (delta: -245.8 kB). Peak memory consumption was 27.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 63.96 ms. Allocated memory is still 151.0 MB. Free memory was 125.4 MB in the beginning and 123.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 39.64 ms. Allocated memory is still 151.0 MB. Free memory was 123.3 MB in the beginning and 121.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 677.05 ms. Allocated memory is still 151.0 MB. Free memory was 121.7 MB in the beginning and 97.6 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 9213.45 ms. Allocated memory was 151.0 MB in the beginning and 250.6 MB in the end (delta: 99.6 MB). Free memory was 97.1 MB in the beginning and 156.0 MB in the end (delta: -59.0 MB). Peak memory consumption was 42.2 MB. Max. memory is 8.0 GB. * Witness Printer took 98.85 ms. Allocated memory is still 250.6 MB. Free memory was 156.0 MB in the beginning and 153.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1172 VarBasedMoverChecksPositive, 55 VarBasedMoverChecksNegative, 17 SemBasedMoverChecksPositive, 38 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.8s, 75 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.9s, 97 PlacesBefore, 38 PlacesAfterwards, 86 TransitionsBefore, 25 TransitionsAfterwards, 1866 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 2 ChoiceCompositions, 68 TotalNumberOfCompositions, 2978 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 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.0s, OverallIterations: 13, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.0s, HoareTripleCheckerStatistics: 282 SDtfs, 351 SDslu, 423 SDs, 0 SdLazy, 235 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred 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: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 308 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 183 NumberOfCodeBlocks, 183 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 10982 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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...