/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-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe028_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 15:43:08,999 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 15:43:09,002 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 15:43:09,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 15:43:09,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 15:43:09,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 15:43:09,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 15:43:09,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 15:43:09,050 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 15:43:09,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 15:43:09,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 15:43:09,054 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 15:43:09,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 15:43:09,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 15:43:09,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 15:43:09,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 15:43:09,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 15:43:09,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 15:43:09,064 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 15:43:09,087 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 15:43:09,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 15:43:09,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 15:43:09,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 15:43:09,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 15:43:09,097 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 15:43:09,101 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 15:43:09,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 15:43:09,104 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 15:43:09,105 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 15:43:09,106 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 15:43:09,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 15:43:09,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 15:43:09,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 15:43:09,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 15:43:09,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 15:43:09,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 15:43:09,112 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-WP.epf [2020-11-09 15:43:09,139 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 15:43:09,139 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 15:43:09,141 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 15:43:09,141 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 15:43:09,141 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 15:43:09,142 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 15:43:09,142 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 15:43:09,142 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 15:43:09,143 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 15:43:09,143 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 15:43:09,143 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 15:43:09,144 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 15:43:09,144 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 15:43:09,144 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 15:43:09,144 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 15:43:09,145 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 15:43:09,145 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 15:43:09,145 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 15:43:09,146 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 15:43:09,146 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 15:43:09,146 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 15:43:09,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 15:43:09,147 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 15:43:09,147 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 15:43:09,148 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 15:43:09,148 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 15:43:09,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 15:43:09,149 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 15:43:09,149 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 15:43:09,149 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 15:43:09,149 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 15:43:09,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 15:43:09,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 15:43:09,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 15:43:09,559 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 15:43:09,560 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 15:43:09,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_tso.oepc.i [2020-11-09 15:43:09,640 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/291c6099d/5999b90e068c480a8a170f09b612a4b2/FLAG3d38e6c77 [2020-11-09 15:43:10,344 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 15:43:10,346 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_tso.oepc.i [2020-11-09 15:43:10,370 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/291c6099d/5999b90e068c480a8a170f09b612a4b2/FLAG3d38e6c77 [2020-11-09 15:43:10,649 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/291c6099d/5999b90e068c480a8a170f09b612a4b2 [2020-11-09 15:43:10,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 15:43:10,660 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 15:43:10,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 15:43:10,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 15:43:10,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 15:43:10,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:43:10" (1/1) ... [2020-11-09 15:43:10,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c4669e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:43:10, skipping insertion in model container [2020-11-09 15:43:10,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:43:10" (1/1) ... [2020-11-09 15:43:10,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 15:43:10,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 15:43:11,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:43:11,142 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 15:43:11,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:43:11,335 INFO L208 MainTranslator]: Completed translation [2020-11-09 15:43:11,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:43:11 WrapperNode [2020-11-09 15:43:11,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 15:43:11,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 15:43:11,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 15:43:11,339 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 15:43:11,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:43:11" (1/1) ... [2020-11-09 15:43:11,397 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:43:11" (1/1) ... [2020-11-09 15:43:11,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 15:43:11,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 15:43:11,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 15:43:11,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 15:43:11,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:43:11" (1/1) ... [2020-11-09 15:43:11,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:43:11" (1/1) ... [2020-11-09 15:43:11,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:43:11" (1/1) ... [2020-11-09 15:43:11,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:43:11" (1/1) ... [2020-11-09 15:43:11,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:43:11" (1/1) ... [2020-11-09 15:43:11,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:43:11" (1/1) ... [2020-11-09 15:43:11,499 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:43:11" (1/1) ... [2020-11-09 15:43:11,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 15:43:11,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 15:43:11,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 15:43:11,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 15:43:11,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:43:11" (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 15:43:11,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 15:43:11,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 15:43:11,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 15:43:11,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 15:43:11,618 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 15:43:11,619 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 15:43:11,620 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 15:43:11,620 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 15:43:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 15:43:11,621 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 15:43:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 15:43:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 15:43:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 15:43:11,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 15:43:11,624 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 15:43:12,199 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 15:43:12,199 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 15:43:12,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:43:12 BoogieIcfgContainer [2020-11-09 15:43:12,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 15:43:12,203 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 15:43:12,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 15:43:12,207 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 15:43:12,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:43:10" (1/3) ... [2020-11-09 15:43:12,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116c2e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:43:12, skipping insertion in model container [2020-11-09 15:43:12,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:43:11" (2/3) ... [2020-11-09 15:43:12,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116c2e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:43:12, skipping insertion in model container [2020-11-09 15:43:12,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:43:12" (3/3) ... [2020-11-09 15:43:12,211 INFO L111 eAbstractionObserver]: Analyzing ICFG safe028_tso.oepc.i [2020-11-09 15:43:12,229 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 15:43:12,230 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 15:43:12,234 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 15:43:12,235 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 15:43:12,279 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,279 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,280 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,280 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,280 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,280 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,280 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,281 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,281 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,281 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,281 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,282 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,282 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,282 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,282 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,283 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,283 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,283 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,283 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,283 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,284 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,284 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,284 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,284 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,285 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,285 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,285 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,285 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,286 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,286 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,286 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,286 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,287 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,287 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,287 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,287 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,295 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,296 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,296 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,296 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,302 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,303 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,303 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,303 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,308 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,309 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,309 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,309 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:43:12,313 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 15:43:12,327 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 15:43:12,365 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 15:43:12,366 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 15:43:12,366 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 15:43:12,366 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 15:43:12,366 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 15:43:12,366 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 15:43:12,366 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 15:43:12,367 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 15:43:12,384 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 15:43:12,385 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 78 transitions, 171 flow [2020-11-09 15:43:12,389 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 78 transitions, 171 flow [2020-11-09 15:43:12,391 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 78 transitions, 171 flow [2020-11-09 15:43:12,471 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2020-11-09 15:43:12,471 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 15:43:12,477 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 56 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-11-09 15:43:12,482 INFO L116 LiptonReduction]: Number of co-enabled transitions 1348 [2020-11-09 15:43:13,113 WARN L194 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-11-09 15:43:15,774 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2020-11-09 15:43:16,734 WARN L194 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-09 15:43:16,856 WARN L194 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 15:43:17,095 WARN L194 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-09 15:43:17,215 WARN L194 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 15:43:17,253 INFO L131 LiptonReduction]: Checked pairs total: 2810 [2020-11-09 15:43:17,253 INFO L133 LiptonReduction]: Total number of compositions: 74 [2020-11-09 15:43:17,261 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 21 transitions, 57 flow [2020-11-09 15:43:17,286 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-11-09 15:43:17,288 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-11-09 15:43:17,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 15:43:17,297 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:43:17,298 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:43:17,298 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:43:17,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:43:17,305 INFO L82 PathProgramCache]: Analyzing trace with hash -831263322, now seen corresponding path program 1 times [2020-11-09 15:43:17,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:43:17,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043059887] [2020-11-09 15:43:17,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:43:17,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:43:17,593 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 15:43:17,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043059887] [2020-11-09 15:43:17,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:43:17,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 15:43:17,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1897634769] [2020-11-09 15:43:17,596 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:43:17,600 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:43:17,614 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-11-09 15:43:17,615 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:43:17,619 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:43:17,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:43:17,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:43:17,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:43:17,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:43:17,638 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-11-09 15:43:17,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:43:17,671 INFO L93 Difference]: Finished difference Result 214 states and 593 transitions. [2020-11-09 15:43:17,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:43:17,673 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-09 15:43:17,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:43:17,687 INFO L225 Difference]: With dead ends: 214 [2020-11-09 15:43:17,687 INFO L226 Difference]: Without dead ends: 166 [2020-11-09 15:43:17,689 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 15:43:17,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-11-09 15:43:17,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-11-09 15:43:17,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-11-09 15:43:17,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 441 transitions. [2020-11-09 15:43:17,750 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 441 transitions. Word has length 8 [2020-11-09 15:43:17,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:43:17,755 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 441 transitions. [2020-11-09 15:43:17,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:43:17,755 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-11-09 15:43:17,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 15:43:17,756 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:43:17,757 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:43:17,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 15:43:17,760 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:43:17,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:43:17,761 INFO L82 PathProgramCache]: Analyzing trace with hash 639961, now seen corresponding path program 1 times [2020-11-09 15:43:17,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:43:17,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824501784] [2020-11-09 15:43:17,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:43:17,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:43:17,860 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 15:43:17,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824501784] [2020-11-09 15:43:17,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:43:17,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:43:17,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [364832371] [2020-11-09 15:43:17,862 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:43:17,863 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:43:17,865 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2020-11-09 15:43:17,865 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:43:17,876 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:43:17,877 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:43:17,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:43:17,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:43:17,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:43:17,879 INFO L87 Difference]: Start difference. First operand 166 states and 441 transitions. Second operand 4 states. [2020-11-09 15:43:17,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:43:17,919 INFO L93 Difference]: Finished difference Result 202 states and 516 transitions. [2020-11-09 15:43:17,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:43:17,924 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-09 15:43:17,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:43:17,926 INFO L225 Difference]: With dead ends: 202 [2020-11-09 15:43:17,926 INFO L226 Difference]: Without dead ends: 130 [2020-11-09 15:43:17,927 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 15:43:17,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-11-09 15:43:17,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-11-09 15:43:17,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-11-09 15:43:17,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 322 transitions. [2020-11-09 15:43:17,956 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 322 transitions. Word has length 9 [2020-11-09 15:43:17,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:43:17,957 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 322 transitions. [2020-11-09 15:43:17,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:43:17,957 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 322 transitions. [2020-11-09 15:43:17,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 15:43:17,958 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:43:17,959 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:43:17,959 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 15:43:17,962 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:43:17,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:43:17,965 INFO L82 PathProgramCache]: Analyzing trace with hash 19828348, now seen corresponding path program 1 times [2020-11-09 15:43:17,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:43:17,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952264763] [2020-11-09 15:43:17,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:43:18,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:43:18,155 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 15:43:18,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952264763] [2020-11-09 15:43:18,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:43:18,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:43:18,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1943773687] [2020-11-09 15:43:18,157 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:43:18,158 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:43:18,160 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 18 transitions. [2020-11-09 15:43:18,160 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:43:18,187 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:43:18,221 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:43:18,253 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1561#(not (= 3 ~__unbuffered_cnt~0))] [2020-11-09 15:43:18,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:43:18,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:43:18,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:43:18,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:43:18,255 INFO L87 Difference]: Start difference. First operand 130 states and 322 transitions. Second operand 5 states. [2020-11-09 15:43:18,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:43:18,376 INFO L93 Difference]: Finished difference Result 121 states and 272 transitions. [2020-11-09 15:43:18,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:43:18,377 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-11-09 15:43:18,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:43:18,378 INFO L225 Difference]: With dead ends: 121 [2020-11-09 15:43:18,378 INFO L226 Difference]: Without dead ends: 85 [2020-11-09 15:43:18,379 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 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 15:43:18,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-11-09 15:43:18,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-11-09 15:43:18,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-11-09 15:43:18,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 173 transitions. [2020-11-09 15:43:18,387 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 173 transitions. Word has length 10 [2020-11-09 15:43:18,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:43:18,387 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 173 transitions. [2020-11-09 15:43:18,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:43:18,387 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 173 transitions. [2020-11-09 15:43:18,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 15:43:18,389 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:43:18,389 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:43:18,389 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 15:43:18,389 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:43:18,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:43:18,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1088953398, now seen corresponding path program 1 times [2020-11-09 15:43:18,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:43:18,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037619422] [2020-11-09 15:43:18,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:43:18,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:43:18,511 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 15:43:18,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037619422] [2020-11-09 15:43:18,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:43:18,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 15:43:18,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1912657110] [2020-11-09 15:43:18,512 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:43:18,515 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:43:18,517 INFO L252 McrAutomatonBuilder]: Finished intersection with 16 states and 17 transitions. [2020-11-09 15:43:18,517 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:43:18,535 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:43:18,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 15:43:18,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:43:18,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 15:43:18,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 15:43:18,537 INFO L87 Difference]: Start difference. First operand 85 states and 173 transitions. Second operand 6 states. [2020-11-09 15:43:18,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:43:18,602 INFO L93 Difference]: Finished difference Result 80 states and 161 transitions. [2020-11-09 15:43:18,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:43:18,603 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-11-09 15:43:18,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:43:18,604 INFO L225 Difference]: With dead ends: 80 [2020-11-09 15:43:18,604 INFO L226 Difference]: Without dead ends: 72 [2020-11-09 15:43:18,605 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 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 15:43:18,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-11-09 15:43:18,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-11-09 15:43:18,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-11-09 15:43:18,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 147 transitions. [2020-11-09 15:43:18,611 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 147 transitions. Word has length 13 [2020-11-09 15:43:18,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:43:18,612 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 147 transitions. [2020-11-09 15:43:18,612 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 15:43:18,612 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 147 transitions. [2020-11-09 15:43:18,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-09 15:43:18,613 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:43:18,613 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:43:18,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 15:43:18,614 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:43:18,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:43:18,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1996779088, now seen corresponding path program 1 times [2020-11-09 15:43:18,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:43:18,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450443474] [2020-11-09 15:43:18,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:43:18,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:43:18,674 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 15:43:18,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450443474] [2020-11-09 15:43:18,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:43:18,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:43:18,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [185003359] [2020-11-09 15:43:18,675 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:43:18,678 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:43:18,686 INFO L252 McrAutomatonBuilder]: Finished intersection with 36 states and 56 transitions. [2020-11-09 15:43:18,687 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:43:18,869 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:43:18,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:43:18,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:43:18,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:43:18,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:43:18,874 INFO L87 Difference]: Start difference. First operand 72 states and 147 transitions. Second operand 4 states. [2020-11-09 15:43:18,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:43:18,902 INFO L93 Difference]: Finished difference Result 85 states and 168 transitions. [2020-11-09 15:43:18,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:43:18,902 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-11-09 15:43:18,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:43:18,903 INFO L225 Difference]: With dead ends: 85 [2020-11-09 15:43:18,903 INFO L226 Difference]: Without dead ends: 33 [2020-11-09 15:43:18,904 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 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 15:43:18,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-11-09 15:43:18,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-11-09 15:43:18,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-11-09 15:43:18,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2020-11-09 15:43:18,907 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 16 [2020-11-09 15:43:18,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:43:18,907 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2020-11-09 15:43:18,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:43:18,907 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-11-09 15:43:18,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-09 15:43:18,909 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:43:18,909 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:43:18,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 15:43:18,911 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:43:18,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:43:18,912 INFO L82 PathProgramCache]: Analyzing trace with hash 242478162, now seen corresponding path program 2 times [2020-11-09 15:43:18,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:43:18,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090395441] [2020-11-09 15:43:18,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:43:18,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:43:18,989 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 15:43:18,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090395441] [2020-11-09 15:43:18,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:43:18,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:43:18,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1231819249] [2020-11-09 15:43:18,990 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:43:18,992 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:43:18,997 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 24 transitions. [2020-11-09 15:43:18,997 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:43:19,010 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:43:19,010 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:43:19,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:43:19,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:43:19,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:43:19,012 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 4 states. [2020-11-09 15:43:19,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:43:19,026 INFO L93 Difference]: Finished difference Result 32 states and 50 transitions. [2020-11-09 15:43:19,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:43:19,027 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-11-09 15:43:19,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:43:19,027 INFO L225 Difference]: With dead ends: 32 [2020-11-09 15:43:19,027 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 15:43:19,028 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 15:43:19,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 15:43:19,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 15:43:19,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 15:43:19,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 15:43:19,029 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-11-09 15:43:19,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:43:19,029 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 15:43:19,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:43:19,030 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 15:43:19,030 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 15:43:19,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 15:43:19,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:43:19 BasicIcfg [2020-11-09 15:43:19,034 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 15:43:19,036 INFO L168 Benchmark]: Toolchain (without parser) took 8381.06 ms. Allocated memory was 151.0 MB in the beginning and 235.9 MB in the end (delta: 84.9 MB). Free memory was 125.4 MB in the beginning and 148.4 MB in the end (delta: -23.0 MB). Peak memory consumption was 62.9 MB. Max. memory is 8.0 GB. [2020-11-09 15:43:19,037 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 151.0 MB. Free memory is still 123.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 15:43:19,038 INFO L168 Benchmark]: CACSL2BoogieTranslator took 672.11 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 127.2 MB in the end (delta: -2.5 MB). Peak memory consumption was 29.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:43:19,038 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.59 ms. Allocated memory is still 151.0 MB. Free memory was 127.2 MB in the beginning and 125.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:43:19,039 INFO L168 Benchmark]: Boogie Preprocessor took 68.18 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 123.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:43:19,040 INFO L168 Benchmark]: RCFGBuilder took 688.70 ms. Allocated memory is still 151.0 MB. Free memory was 123.5 MB in the beginning and 102.0 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:43:19,041 INFO L168 Benchmark]: TraceAbstraction took 6830.92 ms. Allocated memory was 151.0 MB in the beginning and 235.9 MB in the end (delta: 84.9 MB). Free memory was 101.5 MB in the beginning and 148.4 MB in the end (delta: -46.9 MB). Peak memory consumption was 38.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:43:19,045 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 151.0 MB. Free memory is still 123.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 672.11 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 127.2 MB in the end (delta: -2.5 MB). Peak memory consumption was 29.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 98.59 ms. Allocated memory is still 151.0 MB. Free memory was 127.2 MB in the beginning and 125.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 68.18 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 123.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 688.70 ms. Allocated memory is still 151.0 MB. Free memory was 123.5 MB in the beginning and 102.0 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6830.92 ms. Allocated memory was 151.0 MB in the beginning and 235.9 MB in the end (delta: 84.9 MB). Free memory was 101.5 MB in the beginning and 148.4 MB in the end (delta: -46.9 MB). Peak memory consumption was 38.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 761 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 46 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.8s, 85 PlacesBefore, 30 PlacesAfterwards, 78 TransitionsBefore, 21 TransitionsAfterwards, 1348 CoEnabledTransitionPairs, 7 FixpointIterations, 18 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 74 TotalNumberOfCompositions, 2810 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: 6.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.9s, HoareTripleCheckerStatistics: 107 SDtfs, 100 SDslu, 145 SDs, 0 SdLazy, 81 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 2280 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...