/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/safe024_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 17:09:56,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 17:09:56,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 17:09:56,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 17:09:56,716 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 17:09:56,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 17:09:56,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 17:09:56,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 17:09:56,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 17:09:56,751 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 17:09:56,752 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 17:09:56,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 17:09:56,754 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 17:09:56,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 17:09:56,759 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 17:09:56,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 17:09:56,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 17:09:56,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 17:09:56,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 17:09:56,780 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 17:09:56,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 17:09:56,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 17:09:56,786 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 17:09:56,787 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 17:09:56,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-09 17:09:56,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-09 17:09:56,796 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-09 17:09:56,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-09 17:09:56,799 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-09 17:09:56,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-09 17:09:56,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 17:09:56,801 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 17:09:56,803 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 17:09:56,804 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 17:09:56,805 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 17:09:56,806 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 17:09:56,806 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 17:09:56,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 17:09:56,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 17:09:56,808 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 17:09:56,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 17:09:56,810 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 17:09:56,863 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 17:09:56,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 17:09:56,866 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 17:09:56,867 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 17:09:56,867 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 17:09:56,867 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 17:09:56,867 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 17:09:56,867 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 17:09:56,868 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 17:09:56,868 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 17:09:56,869 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 17:09:56,869 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 17:09:56,869 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 17:09:56,870 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 17:09:56,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 17:09:56,870 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 17:09:56,870 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 17:09:56,870 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 17:09:56,871 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 17:09:56,871 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 17:09:56,871 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 17:09:56,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:09:56,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 17:09:56,872 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 17:09:56,872 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 17:09:56,872 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 17:09:56,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 17:09:56,872 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 17:09:56,873 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 17:09:56,873 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 17:09:56,873 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 17:09:57,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 17:09:57,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 17:09:57,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 17:09:57,348 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 17:09:57,348 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 17:09:57,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.oepc.i [2020-11-09 17:09:57,439 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffd0267ef/b95c7b68e6104d86b0614c5d5672dfb6/FLAGbc4313365 [2020-11-09 17:09:58,083 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 17:09:58,084 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.oepc.i [2020-11-09 17:09:58,123 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffd0267ef/b95c7b68e6104d86b0614c5d5672dfb6/FLAGbc4313365 [2020-11-09 17:09:58,362 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffd0267ef/b95c7b68e6104d86b0614c5d5672dfb6 [2020-11-09 17:09:58,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 17:09:58,375 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 17:09:58,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 17:09:58,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 17:09:58,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 17:09:58,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:09:58" (1/1) ... [2020-11-09 17:09:58,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fd61033 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:58, skipping insertion in model container [2020-11-09 17:09:58,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:09:58" (1/1) ... [2020-11-09 17:09:58,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 17:09:58,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 17:09:58,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:09:58,978 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 17:09:59,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:09:59,143 INFO L208 MainTranslator]: Completed translation [2020-11-09 17:09:59,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:59 WrapperNode [2020-11-09 17:09:59,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 17:09:59,145 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 17:09:59,145 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 17:09:59,145 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 17:09:59,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:59" (1/1) ... [2020-11-09 17:09:59,169 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:59" (1/1) ... [2020-11-09 17:09:59,190 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 17:09:59,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 17:09:59,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 17:09:59,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 17:09:59,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:59" (1/1) ... [2020-11-09 17:09:59,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:59" (1/1) ... [2020-11-09 17:09:59,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:59" (1/1) ... [2020-11-09 17:09:59,203 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:59" (1/1) ... [2020-11-09 17:09:59,210 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:59" (1/1) ... [2020-11-09 17:09:59,212 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:59" (1/1) ... [2020-11-09 17:09:59,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:59" (1/1) ... [2020-11-09 17:09:59,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 17:09:59,221 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 17:09:59,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 17:09:59,222 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 17:09:59,223 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:59" (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 17:09:59,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 17:09:59,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 17:09:59,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 17:09:59,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 17:09:59,296 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 17:09:59,296 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 17:09:59,296 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 17:09:59,296 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 17:09:59,296 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 17:09:59,297 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 17:09:59,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 17:09:59,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 17:09:59,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 17:09:59,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 17:09:59,299 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 17:09:59,829 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 17:09:59,829 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 17:09:59,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:09:59 BoogieIcfgContainer [2020-11-09 17:09:59,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 17:09:59,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 17:09:59,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 17:09:59,840 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 17:09:59,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:09:58" (1/3) ... [2020-11-09 17:09:59,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32fa4d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:09:59, skipping insertion in model container [2020-11-09 17:09:59,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:09:59" (2/3) ... [2020-11-09 17:09:59,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32fa4d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:09:59, skipping insertion in model container [2020-11-09 17:09:59,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:09:59" (3/3) ... [2020-11-09 17:09:59,844 INFO L111 eAbstractionObserver]: Analyzing ICFG safe024_tso.oepc.i [2020-11-09 17:09:59,860 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 17:09:59,861 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 17:09:59,864 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 17:09:59,865 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 17:09:59,910 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,910 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,911 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,911 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,911 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,911 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,911 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,912 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,912 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,912 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,913 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,913 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,914 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,914 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,914 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,914 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,915 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,915 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,915 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,915 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,916 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,916 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,916 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,916 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,919 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,920 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,920 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,920 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,921 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,921 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,921 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,925 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,931 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,931 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,932 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,932 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,935 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,935 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,936 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,937 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,943 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,943 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,943 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,944 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,947 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,947 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,948 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,948 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:09:59,950 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 17:09:59,968 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 17:10:00,006 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:10:00,007 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:10:00,007 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:10:00,007 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:10:00,007 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:10:00,008 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:10:00,008 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:10:00,008 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:10:00,025 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:10:00,026 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 80 transitions, 175 flow [2020-11-09 17:10:00,029 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 80 transitions, 175 flow [2020-11-09 17:10:00,031 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 80 transitions, 175 flow [2020-11-09 17:10:00,100 INFO L129 PetriNetUnfolder]: 3/77 cut-off events. [2020-11-09 17:10:00,100 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 17:10:00,105 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 77 events. 3/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 63 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-09 17:10:00,111 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-09 17:10:02,060 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-11-09 17:10:03,769 WARN L194 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-09 17:10:03,882 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-09 17:10:04,144 WARN L194 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-09 17:10:04,267 WARN L194 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-09 17:10:04,542 WARN L194 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2020-11-09 17:10:04,604 INFO L131 LiptonReduction]: Checked pairs total: 3412 [2020-11-09 17:10:04,604 INFO L133 LiptonReduction]: Total number of compositions: 77 [2020-11-09 17:10:04,615 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-11-09 17:10:04,659 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-11-09 17:10:04,662 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-11-09 17:10:04,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 17:10:04,671 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:10:04,672 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:10:04,673 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:10:04,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:10:04,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1698580066, now seen corresponding path program 1 times [2020-11-09 17:10:04,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:10:04,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17760707] [2020-11-09 17:10:04,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:10:04,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:10:04,956 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 17:10:04,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17760707] [2020-11-09 17:10:04,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:10:04,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 17:10:04,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [756783413] [2020-11-09 17:10:04,959 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:10:04,962 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:10:04,979 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-11-09 17:10:04,981 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:10:04,986 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:10:04,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:10:04,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:10:05,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:10:05,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:10:05,006 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-11-09 17:10:05,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:10:05,041 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-11-09 17:10:05,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:10:05,042 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-09 17:10:05,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:10:05,057 INFO L225 Difference]: With dead ends: 282 [2020-11-09 17:10:05,057 INFO L226 Difference]: Without dead ends: 218 [2020-11-09 17:10:05,058 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 [2020-11-09 17:10:05,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-11-09 17:10:05,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-11-09 17:10:05,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-11-09 17:10:05,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-11-09 17:10:05,127 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-11-09 17:10:05,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:10:05,128 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-11-09 17:10:05,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:10:05,128 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-11-09 17:10:05,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 17:10:05,129 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:10:05,129 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:10:05,130 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 17:10:05,130 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:10:05,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:10:05,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1116373545, now seen corresponding path program 1 times [2020-11-09 17:10:05,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:10:05,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237998013] [2020-11-09 17:10:05,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:10:05,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:10:05,206 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 17:10:05,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237998013] [2020-11-09 17:10:05,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:10:05,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:10:05,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [721847243] [2020-11-09 17:10:05,207 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:10:05,208 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:10:05,210 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2020-11-09 17:10:05,211 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:10:05,231 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:10:05,232 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:10:05,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:10:05,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:10:05,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:10:05,234 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-11-09 17:10:05,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:10:05,289 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-11-09 17:10:05,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:10:05,290 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-09 17:10:05,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:10:05,292 INFO L225 Difference]: With dead ends: 242 [2020-11-09 17:10:05,292 INFO L226 Difference]: Without dead ends: 146 [2020-11-09 17:10:05,293 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 17:10:05,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-11-09 17:10:05,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-11-09 17:10:05,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-11-09 17:10:05,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-11-09 17:10:05,316 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-11-09 17:10:05,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:10:05,317 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-11-09 17:10:05,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:10:05,319 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-11-09 17:10:05,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 17:10:05,321 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:10:05,321 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:10:05,321 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 17:10:05,321 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:10:05,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:10:05,322 INFO L82 PathProgramCache]: Analyzing trace with hash -906978528, now seen corresponding path program 1 times [2020-11-09 17:10:05,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:10:05,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354105968] [2020-11-09 17:10:05,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:10:05,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:10:05,488 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 17:10:05,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354105968] [2020-11-09 17:10:05,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:10:05,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:10:05,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [522907780] [2020-11-09 17:10:05,490 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:10:05,491 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:10:05,495 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-11-09 17:10:05,495 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:10:05,537 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:10:05,595 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:10:05,628 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:10:05,672 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1951#(not (= 3 ~__unbuffered_cnt~0))] [2020-11-09 17:10:05,672 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:10:05,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:10:05,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:10:05,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:10:05,674 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 5 states. [2020-11-09 17:10:05,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:10:05,779 INFO L93 Difference]: Finished difference Result 137 states and 312 transitions. [2020-11-09 17:10:05,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:10:05,780 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-11-09 17:10:05,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:10:05,782 INFO L225 Difference]: With dead ends: 137 [2020-11-09 17:10:05,783 INFO L226 Difference]: Without dead ends: 97 [2020-11-09 17:10:05,783 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:10:05,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-11-09 17:10:05,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-11-09 17:10:05,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-11-09 17:10:05,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 202 transitions. [2020-11-09 17:10:05,790 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 202 transitions. Word has length 11 [2020-11-09 17:10:05,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:10:05,790 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 202 transitions. [2020-11-09 17:10:05,790 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:10:05,791 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-11-09 17:10:05,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 17:10:05,792 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:10:05,792 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:10:05,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 17:10:05,792 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:10:05,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:10:05,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1529886427, now seen corresponding path program 1 times [2020-11-09 17:10:05,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:10:05,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982675382] [2020-11-09 17:10:05,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:10:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:10:05,884 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 17:10:05,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982675382] [2020-11-09 17:10:05,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:10:05,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 17:10:05,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [792152704] [2020-11-09 17:10:05,886 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:10:05,887 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:10:05,890 INFO L252 McrAutomatonBuilder]: Finished intersection with 23 states and 30 transitions. [2020-11-09 17:10:05,890 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:10:05,964 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2293#(<= ~__unbuffered_cnt~0 0)] [2020-11-09 17:10:05,965 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 17:10:05,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:10:05,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 17:10:05,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:10:05,966 INFO L87 Difference]: Start difference. First operand 97 states and 202 transitions. Second operand 7 states. [2020-11-09 17:10:06,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:10:06,053 INFO L93 Difference]: Finished difference Result 92 states and 190 transitions. [2020-11-09 17:10:06,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:10:06,053 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-11-09 17:10:06,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:10:06,054 INFO L225 Difference]: With dead ends: 92 [2020-11-09 17:10:06,054 INFO L226 Difference]: Without dead ends: 84 [2020-11-09 17:10:06,055 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-09 17:10:06,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-11-09 17:10:06,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-11-09 17:10:06,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-11-09 17:10:06,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 176 transitions. [2020-11-09 17:10:06,061 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 176 transitions. Word has length 14 [2020-11-09 17:10:06,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:10:06,061 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 176 transitions. [2020-11-09 17:10:06,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 17:10:06,062 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 176 transitions. [2020-11-09 17:10:06,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 17:10:06,063 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:10:06,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:10:06,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 17:10:06,063 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:10:06,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:10:06,064 INFO L82 PathProgramCache]: Analyzing trace with hash 212367058, now seen corresponding path program 1 times [2020-11-09 17:10:06,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:10:06,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906936284] [2020-11-09 17:10:06,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:10:06,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:10:06,113 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 17:10:06,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906936284] [2020-11-09 17:10:06,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:10:06,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:10:06,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [272539744] [2020-11-09 17:10:06,114 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:10:06,116 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:10:06,123 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 77 transitions. [2020-11-09 17:10:06,123 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:10:06,252 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:10:06,252 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:10:06,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:10:06,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:10:06,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:10:06,253 INFO L87 Difference]: Start difference. First operand 84 states and 176 transitions. Second operand 4 states. [2020-11-09 17:10:06,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:10:06,271 INFO L93 Difference]: Finished difference Result 97 states and 197 transitions. [2020-11-09 17:10:06,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:10:06,271 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 17:10:06,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:10:06,272 INFO L225 Difference]: With dead ends: 97 [2020-11-09 17:10:06,272 INFO L226 Difference]: Without dead ends: 36 [2020-11-09 17:10:06,272 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 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 17:10:06,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-09 17:10:06,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-09 17:10:06,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-09 17:10:06,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-11-09 17:10:06,275 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 17 [2020-11-09 17:10:06,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:10:06,275 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-11-09 17:10:06,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:10:06,276 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-11-09 17:10:06,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 17:10:06,276 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:10:06,277 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:10:06,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 17:10:06,277 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:10:06,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:10:06,278 INFO L82 PathProgramCache]: Analyzing trace with hash 671694040, now seen corresponding path program 2 times [2020-11-09 17:10:06,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:10:06,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175907582] [2020-11-09 17:10:06,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:10:06,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:10:06,319 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 17:10:06,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175907582] [2020-11-09 17:10:06,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:10:06,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:10:06,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1605894145] [2020-11-09 17:10:06,321 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:10:06,323 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:10:06,328 INFO L252 McrAutomatonBuilder]: Finished intersection with 30 states and 41 transitions. [2020-11-09 17:10:06,328 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:10:06,375 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:10:06,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:10:06,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:10:06,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:10:06,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:10:06,377 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 4 states. [2020-11-09 17:10:06,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:10:06,390 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-11-09 17:10:06,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:10:06,390 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 17:10:06,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:10:06,390 INFO L225 Difference]: With dead ends: 35 [2020-11-09 17:10:06,390 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 17:10:06,391 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 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 17:10:06,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 17:10:06,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 17:10:06,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 17:10:06,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 17:10:06,392 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-09 17:10:06,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:10:06,392 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 17:10:06,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:10:06,392 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 17:10:06,392 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 17:10:06,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 17:10:06,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:10:06 BasicIcfg [2020-11-09 17:10:06,396 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 17:10:06,397 INFO L168 Benchmark]: Toolchain (without parser) took 8027.74 ms. Allocated memory was 152.0 MB in the beginning and 219.2 MB in the end (delta: 67.1 MB). Free memory was 124.8 MB in the beginning and 113.9 MB in the end (delta: 11.0 MB). Peak memory consumption was 78.6 MB. Max. memory is 8.0 GB. [2020-11-09 17:10:06,398 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 152.0 MB. Free memory is still 123.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:10:06,399 INFO L168 Benchmark]: CACSL2BoogieTranslator took 765.31 ms. Allocated memory is still 152.0 MB. Free memory was 124.1 MB in the beginning and 129.8 MB in the end (delta: -5.7 MB). Peak memory consumption was 31.2 MB. Max. memory is 8.0 GB. [2020-11-09 17:10:06,400 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.24 ms. Allocated memory is still 152.0 MB. Free memory was 129.8 MB in the beginning and 127.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:10:06,400 INFO L168 Benchmark]: Boogie Preprocessor took 27.09 ms. Allocated memory is still 152.0 MB. Free memory was 127.7 MB in the beginning and 126.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:10:06,401 INFO L168 Benchmark]: RCFGBuilder took 611.57 ms. Allocated memory is still 152.0 MB. Free memory was 126.6 MB in the beginning and 104.1 MB in the end (delta: 22.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:10:06,402 INFO L168 Benchmark]: TraceAbstraction took 6559.66 ms. Allocated memory was 152.0 MB in the beginning and 219.2 MB in the end (delta: 67.1 MB). Free memory was 103.6 MB in the beginning and 113.9 MB in the end (delta: -10.3 MB). Peak memory consumption was 56.8 MB. Max. memory is 8.0 GB. [2020-11-09 17:10:06,406 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 152.0 MB. Free memory is still 123.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 765.31 ms. Allocated memory is still 152.0 MB. Free memory was 124.1 MB in the beginning and 129.8 MB in the end (delta: -5.7 MB). Peak memory consumption was 31.2 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 45.24 ms. Allocated memory is still 152.0 MB. Free memory was 129.8 MB in the beginning and 127.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 27.09 ms. Allocated memory is still 152.0 MB. Free memory was 127.7 MB in the beginning and 126.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 611.57 ms. Allocated memory is still 152.0 MB. Free memory was 126.6 MB in the beginning and 104.1 MB in the end (delta: 22.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6559.66 ms. Allocated memory was 152.0 MB in the beginning and 219.2 MB in the end (delta: 67.1 MB). Free memory was 103.6 MB in the beginning and 113.9 MB in the end (delta: -10.3 MB). Peak memory consumption was 56.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 818 VarBasedMoverChecksPositive, 27 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 65 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.5s, 87 PlacesBefore, 31 PlacesAfterwards, 80 TransitionsBefore, 22 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 7 FixpointIterations, 19 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 77 TotalNumberOfCompositions, 3412 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, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: 117 SDtfs, 111 SDslu, 169 SDs, 0 SdLazy, 80 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 54 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 2638 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...