/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 17:13:06,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 17:13:06,254 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 17:13:06,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 17:13:06,290 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 17:13:06,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 17:13:06,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 17:13:06,296 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 17:13:06,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 17:13:06,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 17:13:06,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 17:13:06,303 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 17:13:06,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 17:13:06,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 17:13:06,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 17:13:06,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 17:13:06,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 17:13:06,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 17:13:06,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 17:13:06,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 17:13:06,318 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 17:13:06,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 17:13:06,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 17:13:06,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 17:13:06,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-09 17:13:06,326 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-09 17:13:06,327 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-09 17:13:06,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-09 17:13:06,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-09 17:13:06,330 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-09 17:13:06,331 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 17:13:06,332 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 17:13:06,333 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 17:13:06,334 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 17:13:06,335 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 17:13:06,336 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 17:13:06,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 17:13:06,337 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 17:13:06,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 17:13:06,339 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 17:13:06,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 17:13:06,341 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-11-09 17:13:06,392 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 17:13:06,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 17:13:06,396 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 17:13:06,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 17:13:06,397 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 17:13:06,397 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 17:13:06,398 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 17:13:06,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 17:13:06,398 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 17:13:06,398 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 17:13:06,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 17:13:06,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 17:13:06,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 17:13:06,400 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 17:13:06,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 17:13:06,401 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 17:13:06,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 17:13:06,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 17:13:06,402 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 17:13:06,402 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 17:13:06,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 17:13:06,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:13:06,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 17:13:06,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 17:13:06,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 17:13:06,404 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 17:13:06,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 17:13:06,404 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 17:13:06,405 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 17:13:06,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 17:13:06,405 INFO L138 SettingsManager]: * Interpolant automaton=MCR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 17:13:06,878 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 17:13:06,925 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 17:13:06,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 17:13:06,930 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 17:13:06,931 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 17:13:06,932 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.oepc.i [2020-11-09 17:13:07,026 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb1573935/873dd9bfc94f48cead7da0901bdd9729/FLAG8d9142421 [2020-11-09 17:13:07,794 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 17:13:07,795 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_tso.oepc.i [2020-11-09 17:13:07,821 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb1573935/873dd9bfc94f48cead7da0901bdd9729/FLAG8d9142421 [2020-11-09 17:13:08,020 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb1573935/873dd9bfc94f48cead7da0901bdd9729 [2020-11-09 17:13:08,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 17:13:08,032 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 17:13:08,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 17:13:08,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 17:13:08,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 17:13:08,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:13:08" (1/1) ... [2020-11-09 17:13:08,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bdbec63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:08, skipping insertion in model container [2020-11-09 17:13:08,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:13:08" (1/1) ... [2020-11-09 17:13:08,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 17:13:08,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 17:13:08,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:13:08,612 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 17:13:08,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:13:08,765 INFO L208 MainTranslator]: Completed translation [2020-11-09 17:13:08,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:08 WrapperNode [2020-11-09 17:13:08,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 17:13:08,768 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 17:13:08,768 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 17:13:08,769 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 17:13:08,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:08" (1/1) ... [2020-11-09 17:13:08,815 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:08" (1/1) ... [2020-11-09 17:13:08,839 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 17:13:08,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 17:13:08,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 17:13:08,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 17:13:08,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:08" (1/1) ... [2020-11-09 17:13:08,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:08" (1/1) ... [2020-11-09 17:13:08,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:08" (1/1) ... [2020-11-09 17:13:08,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:08" (1/1) ... [2020-11-09 17:13:08,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:08" (1/1) ... [2020-11-09 17:13:08,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:08" (1/1) ... [2020-11-09 17:13:08,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:08" (1/1) ... [2020-11-09 17:13:08,870 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 17:13:08,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 17:13:08,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 17:13:08,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 17:13:08,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:08" (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 [2020-11-09 17:13:08,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 17:13:08,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 17:13:08,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 17:13:08,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 17:13:08,948 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 17:13:08,950 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 17:13:08,951 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 17:13:08,952 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 17:13:08,953 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 17:13:08,953 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 17:13:08,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 17:13:08,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 17:13:08,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 17:13:08,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 17:13:08,956 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 17:13:09,411 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 17:13:09,411 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 17:13:09,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:13:09 BoogieIcfgContainer [2020-11-09 17:13:09,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 17:13:09,416 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 17:13:09,416 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 17:13:09,419 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 17:13:09,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:13:08" (1/3) ... [2020-11-09 17:13:09,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c278ea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:13:09, skipping insertion in model container [2020-11-09 17:13:09,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:13:08" (2/3) ... [2020-11-09 17:13:09,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c278ea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:13:09, skipping insertion in model container [2020-11-09 17:13:09,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:13:09" (3/3) ... [2020-11-09 17:13:09,423 INFO L111 eAbstractionObserver]: Analyzing ICFG safe031_tso.oepc.i [2020-11-09 17:13:09,440 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 17:13:09,440 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 17:13:09,444 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 17:13:09,445 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 17:13:09,480 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,481 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,481 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,481 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,481 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,481 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,482 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,482 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,482 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,482 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,483 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,483 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,483 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,483 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,484 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,484 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,484 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,484 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,484 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,484 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,485 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,485 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,485 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,485 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,486 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,486 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,486 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,486 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,487 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,487 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,487 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,487 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,488 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,488 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,488 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,488 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,491 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,491 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,492 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,492 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,498 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,498 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,498 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,499 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,503 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,503 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,504 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,504 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:13:09,507 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 17:13:09,521 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 17:13:09,545 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:13:09,545 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:13:09,545 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:13:09,545 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:13:09,545 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:13:09,546 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:13:09,546 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:13:09,546 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:13:09,559 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:13:09,560 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 78 transitions, 171 flow [2020-11-09 17:13:09,564 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 78 transitions, 171 flow [2020-11-09 17:13:09,566 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 78 transitions, 171 flow [2020-11-09 17:13:09,617 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2020-11-09 17:13:09,617 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 17:13:09,622 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 75 events. 3/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-09 17:13:09,625 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-09 17:13:12,933 WARN L194 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 17:13:13,041 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 17:13:13,304 WARN L194 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 17:13:13,414 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 17:13:13,440 INFO L131 LiptonReduction]: Checked pairs total: 2814 [2020-11-09 17:13:13,440 INFO L133 LiptonReduction]: Total number of compositions: 71 [2020-11-09 17:13:13,447 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-11-09 17:13:13,483 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-11-09 17:13:13,485 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-11-09 17:13:13,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 17:13:13,493 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:13:13,494 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:13:13,495 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:13:13,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:13:13,501 INFO L82 PathProgramCache]: Analyzing trace with hash 515529937, now seen corresponding path program 1 times [2020-11-09 17:13:13,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:13:13,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595519518] [2020-11-09 17:13:13,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:13:13,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:13:13,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:13:13,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595519518] [2020-11-09 17:13:13,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:13:13,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:13:13,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1390060686] [2020-11-09 17:13:13,716 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:13:13,719 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:13:13,732 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-11-09 17:13:13,732 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:13:13,737 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:13:13,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 17:13:13,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:13:13,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 17:13:13,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 17:13:13,755 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-11-09 17:13:13,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:13:13,784 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-11-09 17:13:13,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 17:13:13,786 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-09 17:13:13,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:13:13,803 INFO L225 Difference]: With dead ends: 362 [2020-11-09 17:13:13,803 INFO L226 Difference]: Without dead ends: 298 [2020-11-09 17:13:13,805 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 17:13:13,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-11-09 17:13:13,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-11-09 17:13:13,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-11-09 17:13:13,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-11-09 17:13:13,900 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-11-09 17:13:13,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:13:13,905 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-11-09 17:13:13,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 17:13:13,905 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-11-09 17:13:13,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 17:13:13,907 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:13:13,907 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:13:13,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 17:13:13,908 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:13:13,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:13:13,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1198450655, now seen corresponding path program 1 times [2020-11-09 17:13:13,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:13:13,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206941237] [2020-11-09 17:13:13,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:13:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:13:14,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:13:14,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206941237] [2020-11-09 17:13:14,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:13:14,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:13:14,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1112903562] [2020-11-09 17:13:14,164 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:13:14,165 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:13:14,167 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-11-09 17:13:14,167 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:13:14,168 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:13:14,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:13:14,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:13:14,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:13:14,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:13:14,173 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-11-09 17:13:14,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:13:14,243 INFO L93 Difference]: Finished difference Result 346 states and 956 transitions. [2020-11-09 17:13:14,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:13:14,244 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-09 17:13:14,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:13:14,251 INFO L225 Difference]: With dead ends: 346 [2020-11-09 17:13:14,252 INFO L226 Difference]: Without dead ends: 282 [2020-11-09 17:13:14,256 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 [2020-11-09 17:13:14,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-11-09 17:13:14,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-11-09 17:13:14,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-11-09 17:13:14,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 804 transitions. [2020-11-09 17:13:14,310 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 804 transitions. Word has length 9 [2020-11-09 17:13:14,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:13:14,313 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 804 transitions. [2020-11-09 17:13:14,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:13:14,314 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 804 transitions. [2020-11-09 17:13:14,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 17:13:14,315 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:13:14,316 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:13:14,316 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 17:13:14,317 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:13:14,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:13:14,318 INFO L82 PathProgramCache]: Analyzing trace with hash -1977877749, now seen corresponding path program 1 times [2020-11-09 17:13:14,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:13:14,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561281519] [2020-11-09 17:13:14,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:13:14,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:13:14,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:13:14,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561281519] [2020-11-09 17:13:14,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:13:14,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:13:14,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [196337027] [2020-11-09 17:13:14,432 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:13:14,433 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:13:14,435 INFO L252 McrAutomatonBuilder]: Finished intersection with 16 states and 20 transitions. [2020-11-09 17:13:14,435 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:13:14,504 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:13:14,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:13:14,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:13:14,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:13:14,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:13:14,506 INFO L87 Difference]: Start difference. First operand 282 states and 804 transitions. Second operand 4 states. [2020-11-09 17:13:14,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:13:14,537 INFO L93 Difference]: Finished difference Result 318 states and 870 transitions. [2020-11-09 17:13:14,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:13:14,538 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-09 17:13:14,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:13:14,541 INFO L225 Difference]: With dead ends: 318 [2020-11-09 17:13:14,541 INFO L226 Difference]: Without dead ends: 270 [2020-11-09 17:13:14,542 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:13:14,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-11-09 17:13:14,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2020-11-09 17:13:14,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-11-09 17:13:14,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 760 transitions. [2020-11-09 17:13:14,561 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 760 transitions. Word has length 10 [2020-11-09 17:13:14,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:13:14,561 INFO L481 AbstractCegarLoop]: Abstraction has 270 states and 760 transitions. [2020-11-09 17:13:14,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:13:14,562 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 760 transitions. [2020-11-09 17:13:14,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 17:13:14,564 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:13:14,564 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:13:14,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 17:13:14,564 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:13:14,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:13:14,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1186186363, now seen corresponding path program 1 times [2020-11-09 17:13:14,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:13:14,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911799083] [2020-11-09 17:13:14,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:13:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:13:14,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:13:14,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911799083] [2020-11-09 17:13:14,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:13:14,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:13:14,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1045428997] [2020-11-09 17:13:14,634 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:13:14,635 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:13:14,638 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 28 transitions. [2020-11-09 17:13:14,638 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:13:14,658 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:13:14,717 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:13:14,761 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:13:14,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:13:14,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:13:14,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:13:14,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:13:14,763 INFO L87 Difference]: Start difference. First operand 270 states and 760 transitions. Second operand 4 states. [2020-11-09 17:13:14,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:13:14,816 INFO L93 Difference]: Finished difference Result 273 states and 687 transitions. [2020-11-09 17:13:14,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:13:14,816 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-09 17:13:14,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:13:14,818 INFO L225 Difference]: With dead ends: 273 [2020-11-09 17:13:14,819 INFO L226 Difference]: Without dead ends: 209 [2020-11-09 17:13:14,819 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:13:14,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-11-09 17:13:14,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2020-11-09 17:13:14,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-11-09 17:13:14,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 516 transitions. [2020-11-09 17:13:14,829 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 516 transitions. Word has length 11 [2020-11-09 17:13:14,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:13:14,830 INFO L481 AbstractCegarLoop]: Abstraction has 209 states and 516 transitions. [2020-11-09 17:13:14,830 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:13:14,830 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 516 transitions. [2020-11-09 17:13:14,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 17:13:14,832 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:13:14,832 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:13:14,832 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 17:13:14,832 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:13:14,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:13:14,833 INFO L82 PathProgramCache]: Analyzing trace with hash -497822471, now seen corresponding path program 1 times [2020-11-09 17:13:14,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:13:14,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885818079] [2020-11-09 17:13:14,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:13:14,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:13:14,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:13:14,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885818079] [2020-11-09 17:13:14,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:13:14,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:13:14,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1018234651] [2020-11-09 17:13:14,897 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:13:14,898 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:13:14,900 INFO L252 McrAutomatonBuilder]: Finished intersection with 13 states and 12 transitions. [2020-11-09 17:13:14,900 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:13:14,901 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:13:14,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:13:14,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:13:14,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:13:14,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:13:14,902 INFO L87 Difference]: Start difference. First operand 209 states and 516 transitions. Second operand 4 states. [2020-11-09 17:13:14,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:13:14,933 INFO L93 Difference]: Finished difference Result 303 states and 706 transitions. [2020-11-09 17:13:14,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:13:14,933 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-09 17:13:14,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:13:14,935 INFO L225 Difference]: With dead ends: 303 [2020-11-09 17:13:14,936 INFO L226 Difference]: Without dead ends: 223 [2020-11-09 17:13:14,936 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 [2020-11-09 17:13:14,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2020-11-09 17:13:14,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 199. [2020-11-09 17:13:14,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2020-11-09 17:13:14,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 470 transitions. [2020-11-09 17:13:14,945 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 470 transitions. Word has length 12 [2020-11-09 17:13:14,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:13:14,945 INFO L481 AbstractCegarLoop]: Abstraction has 199 states and 470 transitions. [2020-11-09 17:13:14,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:13:14,945 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 470 transitions. [2020-11-09 17:13:14,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 17:13:14,947 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:13:14,947 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:13:14,947 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 17:13:14,947 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:13:14,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:13:14,948 INFO L82 PathProgramCache]: Analyzing trace with hash -319232189, now seen corresponding path program 1 times [2020-11-09 17:13:14,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:13:14,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551409515] [2020-11-09 17:13:14,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:13:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:13:15,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:13:15,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551409515] [2020-11-09 17:13:15,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:13:15,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 17:13:15,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [393767494] [2020-11-09 17:13:15,015 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:13:15,017 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:13:15,020 INFO L252 McrAutomatonBuilder]: Finished intersection with 30 states and 45 transitions. [2020-11-09 17:13:15,021 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:13:15,159 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [4961#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 17:13:15,160 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 17:13:15,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:13:15,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 17:13:15,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 17:13:15,161 INFO L87 Difference]: Start difference. First operand 199 states and 470 transitions. Second operand 6 states. [2020-11-09 17:13:15,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:13:15,218 INFO L93 Difference]: Finished difference Result 171 states and 364 transitions. [2020-11-09 17:13:15,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 17:13:15,219 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-11-09 17:13:15,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:13:15,220 INFO L225 Difference]: With dead ends: 171 [2020-11-09 17:13:15,220 INFO L226 Difference]: Without dead ends: 134 [2020-11-09 17:13:15,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:13:15,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-11-09 17:13:15,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2020-11-09 17:13:15,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-11-09 17:13:15,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 280 transitions. [2020-11-09 17:13:15,226 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 280 transitions. Word has length 13 [2020-11-09 17:13:15,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:13:15,226 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 280 transitions. [2020-11-09 17:13:15,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 17:13:15,226 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 280 transitions. [2020-11-09 17:13:15,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 17:13:15,227 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:13:15,228 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:13:15,228 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 17:13:15,228 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:13:15,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:13:15,229 INFO L82 PathProgramCache]: Analyzing trace with hash 447753789, now seen corresponding path program 1 times [2020-11-09 17:13:15,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:13:15,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593277069] [2020-11-09 17:13:15,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:13:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:13:15,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:13:15,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593277069] [2020-11-09 17:13:15,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:13:15,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:13:15,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [980088567] [2020-11-09 17:13:15,302 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:13:15,303 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:13:15,308 INFO L252 McrAutomatonBuilder]: Finished intersection with 40 states and 67 transitions. [2020-11-09 17:13:15,308 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:13:15,359 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:13:15,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:13:15,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:13:15,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:13:15,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:13:15,361 INFO L87 Difference]: Start difference. First operand 134 states and 280 transitions. Second operand 4 states. [2020-11-09 17:13:15,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:13:15,395 INFO L93 Difference]: Finished difference Result 177 states and 347 transitions. [2020-11-09 17:13:15,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:13:15,396 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-11-09 17:13:15,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:13:15,397 INFO L225 Difference]: With dead ends: 177 [2020-11-09 17:13:15,397 INFO L226 Difference]: Without dead ends: 130 [2020-11-09 17:13:15,398 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:13:15,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-11-09 17:13:15,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 126. [2020-11-09 17:13:15,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-11-09 17:13:15,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 248 transitions. [2020-11-09 17:13:15,403 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 248 transitions. Word has length 15 [2020-11-09 17:13:15,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:13:15,403 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 248 transitions. [2020-11-09 17:13:15,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:13:15,403 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 248 transitions. [2020-11-09 17:13:15,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 17:13:15,404 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:13:15,404 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:13:15,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 17:13:15,404 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:13:15,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:13:15,405 INFO L82 PathProgramCache]: Analyzing trace with hash 144030791, now seen corresponding path program 1 times [2020-11-09 17:13:15,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:13:15,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792640435] [2020-11-09 17:13:15,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:13:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:13:15,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:13:15,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792640435] [2020-11-09 17:13:15,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:13:15,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 17:13:15,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1520212237] [2020-11-09 17:13:15,479 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:13:15,481 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:13:15,485 INFO L252 McrAutomatonBuilder]: Finished intersection with 34 states and 48 transitions. [2020-11-09 17:13:15,486 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:13:15,486 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:13:15,486 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 17:13:15,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:13:15,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 17:13:15,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 17:13:15,488 INFO L87 Difference]: Start difference. First operand 126 states and 248 transitions. Second operand 6 states. [2020-11-09 17:13:15,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:13:15,548 INFO L93 Difference]: Finished difference Result 113 states and 220 transitions. [2020-11-09 17:13:15,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:13:15,549 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-09 17:13:15,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:13:15,549 INFO L225 Difference]: With dead ends: 113 [2020-11-09 17:13:15,549 INFO L226 Difference]: Without dead ends: 37 [2020-11-09 17:13:15,550 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:13:15,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-09 17:13:15,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-09 17:13:15,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-09 17:13:15,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-11-09 17:13:15,552 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 15 [2020-11-09 17:13:15,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:13:15,552 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-11-09 17:13:15,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 17:13:15,552 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-11-09 17:13:15,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 17:13:15,553 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:13:15,553 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:13:15,553 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 17:13:15,553 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:13:15,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:13:15,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1289085181, now seen corresponding path program 1 times [2020-11-09 17:13:15,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:13:15,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983608946] [2020-11-09 17:13:15,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:13:15,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:13:15,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:13:15,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983608946] [2020-11-09 17:13:15,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:13:15,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 17:13:15,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1598778610] [2020-11-09 17:13:15,644 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:13:15,647 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:13:15,659 INFO L252 McrAutomatonBuilder]: Finished intersection with 62 states and 104 transitions. [2020-11-09 17:13:15,660 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:13:15,674 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:13:15,675 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:13:15,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:13:15,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:13:15,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:13:15,676 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 5 states. [2020-11-09 17:13:15,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:13:15,703 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-11-09 17:13:15,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:13:15,703 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-11-09 17:13:15,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:13:15,703 INFO L225 Difference]: With dead ends: 36 [2020-11-09 17:13:15,703 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 17:13:15,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:13:15,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 17:13:15,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 17:13:15,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 17:13:15,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 17:13:15,705 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-11-09 17:13:15,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:13:15,705 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 17:13:15,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:13:15,705 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 17:13:15,705 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 17:13:15,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 17:13:15,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:13:15 BasicIcfg [2020-11-09 17:13:15,709 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 17:13:15,711 INFO L168 Benchmark]: Toolchain (without parser) took 7685.15 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 124.6 MB in the beginning and 184.0 MB in the end (delta: -59.5 MB). Peak memory consumption was 8.7 MB. Max. memory is 8.0 GB. [2020-11-09 17:13:15,712 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 125.8 MB. Free memory is still 80.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:13:15,713 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.49 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 93.3 MB in the end (delta: 30.6 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. [2020-11-09 17:13:15,714 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.77 ms. Allocated memory is still 151.0 MB. Free memory was 93.1 MB in the beginning and 134.0 MB in the end (delta: -40.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-09 17:13:15,720 INFO L168 Benchmark]: Boogie Preprocessor took 31.01 ms. Allocated memory is still 151.0 MB. Free memory was 134.0 MB in the beginning and 132.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:13:15,721 INFO L168 Benchmark]: RCFGBuilder took 542.77 ms. Allocated memory is still 151.0 MB. Free memory was 132.6 MB in the beginning and 110.6 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:13:15,722 INFO L168 Benchmark]: TraceAbstraction took 6293.90 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 110.6 MB in the beginning and 184.0 MB in the end (delta: -73.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:13:15,733 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 125.8 MB. Free memory is still 80.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 731.49 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 93.3 MB in the end (delta: 30.6 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 70.77 ms. Allocated memory is still 151.0 MB. Free memory was 93.1 MB in the beginning and 134.0 MB in the end (delta: -40.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 31.01 ms. Allocated memory is still 151.0 MB. Free memory was 134.0 MB in the beginning and 132.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 542.77 ms. Allocated memory is still 151.0 MB. Free memory was 132.6 MB in the beginning and 110.6 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6293.90 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 110.6 MB in the beginning and 184.0 MB in the end (delta: -73.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 779 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 48 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.8s, 85 PlacesBefore, 32 PlacesAfterwards, 78 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 71 TotalNumberOfCompositions, 2814 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.1s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 211 SDtfs, 158 SDslu, 310 SDs, 0 SdLazy, 117 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 28 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 3183 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...