/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-21 23:38:58,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-21 23:38:58,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-21 23:38:58,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-21 23:38:58,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-21 23:38:58,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-21 23:38:58,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-21 23:38:58,101 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2021-05-21 23:38:58,138 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-21 23:38:58,139 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-21 23:38:58,139 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-21 23:38:58,139 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-21 23:38:58,142 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-21 23:38:58,142 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-21 23:38:58,142 INFO L138 SettingsManager]: * Use SBE=true [2021-05-21 23:38:58,142 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-21 23:38:58,142 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-21 23:38:58,143 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-21 23:38:58,143 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-21 23:38:58,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-21 23:38:58,144 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-21 23:38:58,144 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-21 23:38:58,144 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-21 23:38:58,144 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-21 23:38:58,144 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-21 23:38:58,144 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-21 23:38:58,145 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-21 23:38:58,145 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-21 23:38:58,145 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-21 23:38:58,145 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-21 23:38:58,145 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-21 23:38:58,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 23:38:58,146 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-21 23:38:58,146 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-21 23:38:58,146 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-21 23:38:58,146 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-21 23:38:58,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-21 23:38:58,146 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-21 23:38:58,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-21 23:38:58,147 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-05-21 23:38:58,147 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-21 23:38:58,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-21 23:38:58,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-21 23:38:58,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-21 23:38:58,485 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-21 23:38:58,485 INFO L275 PluginConnector]: CDTParser initialized [2021-05-21 23:38:58,486 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.opt.i [2021-05-21 23:38:58,555 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa78ab866/10635afeb80641cda6571924566eb041/FLAGfa0d6b457 [2021-05-21 23:38:59,192 INFO L306 CDTParser]: Found 1 translation units. [2021-05-21 23:38:59,192 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_tso.opt.i [2021-05-21 23:38:59,213 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa78ab866/10635afeb80641cda6571924566eb041/FLAGfa0d6b457 [2021-05-21 23:38:59,580 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa78ab866/10635afeb80641cda6571924566eb041 [2021-05-21 23:38:59,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-21 23:38:59,584 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-21 23:38:59,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-21 23:38:59,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-21 23:38:59,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-21 23:38:59,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 11:38:59" (1/1) ... [2021-05-21 23:38:59,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7db0db9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:38:59, skipping insertion in model container [2021-05-21 23:38:59,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 11:38:59" (1/1) ... [2021-05-21 23:38:59,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-21 23:38:59,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-21 23:38:59,755 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_tso.opt.i[949,962] [2021-05-21 23:38:59,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 23:38:59,964 INFO L203 MainTranslator]: Completed pre-run [2021-05-21 23:38:59,975 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_tso.opt.i[949,962] [2021-05-21 23:39:00,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 23:39:00,080 INFO L208 MainTranslator]: Completed translation [2021-05-21 23:39:00,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:39:00 WrapperNode [2021-05-21 23:39:00,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-21 23:39:00,082 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-21 23:39:00,082 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-21 23:39:00,082 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-21 23:39:00,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:39:00" (1/1) ... [2021-05-21 23:39:00,116 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:39:00" (1/1) ... [2021-05-21 23:39:00,137 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-21 23:39:00,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-21 23:39:00,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-21 23:39:00,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-21 23:39:00,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:39:00" (1/1) ... [2021-05-21 23:39:00,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:39:00" (1/1) ... [2021-05-21 23:39:00,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:39:00" (1/1) ... [2021-05-21 23:39:00,162 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:39:00" (1/1) ... [2021-05-21 23:39:00,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:39:00" (1/1) ... [2021-05-21 23:39:00,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:39:00" (1/1) ... [2021-05-21 23:39:00,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:39:00" (1/1) ... [2021-05-21 23:39:00,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-21 23:39:00,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-21 23:39:00,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-21 23:39:00,171 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-21 23:39:00,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:39:00" (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 [2021-05-21 23:39:00,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-21 23:39:00,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-05-21 23:39:00,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-21 23:39:00,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-21 23:39:00,259 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-05-21 23:39:00,259 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-05-21 23:39:00,260 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-05-21 23:39:00,260 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-05-21 23:39:00,260 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-05-21 23:39:00,260 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-05-21 23:39:00,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-21 23:39:00,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-05-21 23:39:00,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-21 23:39:00,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-21 23:39:00,262 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-21 23:39:00,572 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-21 23:39:00,573 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-05-21 23:39:00,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 11:39:00 BoogieIcfgContainer [2021-05-21 23:39:00,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-21 23:39:00,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-21 23:39:00,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-21 23:39:00,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-21 23:39:00,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.05 11:38:59" (1/3) ... [2021-05-21 23:39:00,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49803d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 11:39:00, skipping insertion in model container [2021-05-21 23:39:00,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:39:00" (2/3) ... [2021-05-21 23:39:00,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49803d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 11:39:00, skipping insertion in model container [2021-05-21 23:39:00,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 11:39:00" (3/3) ... [2021-05-21 23:39:00,580 INFO L111 eAbstractionObserver]: Analyzing ICFG safe031_tso.opt.i [2021-05-21 23:39:00,585 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-21 23:39:00,585 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-21 23:39:00,585 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-05-21 23:39:00,586 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-21 23:39:00,619 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,619 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,620 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,620 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,620 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,620 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,620 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,620 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,621 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,621 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,621 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,621 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,622 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,622 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,622 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,622 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,623 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,623 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,624 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,624 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,625 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,625 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,626 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,626 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,632 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,632 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,632 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,633 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,633 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,633 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,636 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,636 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,636 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,636 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,637 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,637 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,638 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,638 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,639 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,639 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,643 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,643 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,643 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,643 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,645 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,645 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,645 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,645 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:39:00,647 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-05-21 23:39:00,661 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-21 23:39:00,674 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 23:39:00,674 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 23:39:00,674 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 23:39:00,675 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 23:39:00,675 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 23:39:00,675 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 23:39:00,675 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 23:39:00,675 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 23:39:00,683 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 91 places, 83 transitions, 181 flow [2021-05-21 23:39:01,291 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:01,328 INFO L276 IsEmpty]: Start isEmpty. Operand has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:01,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-05-21 23:39:01,363 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:39:01,363 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:39:01,364 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:39:01,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:39:01,368 INFO L82 PathProgramCache]: Analyzing trace with hash 2019691919, now seen corresponding path program 1 times [2021-05-21 23:39:01,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:39:01,376 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660893127] [2021-05-21 23:39:01,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:39:01,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:39:01,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:39:01,661 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:39:01,662 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660893127] [2021-05-21 23:39:01,662 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660893127] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:39:01,662 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:39:01,663 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 23:39:01,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099814171] [2021-05-21 23:39:01,666 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 23:39:01,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:39:01,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 23:39:01,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 23:39:01,706 INFO L87 Difference]: Start difference. First operand has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:01,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:39:01,993 INFO L93 Difference]: Finished difference Result 13118 states and 45582 transitions. [2021-05-21 23:39:01,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 23:39:01,994 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-05-21 23:39:01,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:39:02,040 INFO L225 Difference]: With dead ends: 13118 [2021-05-21 23:39:02,041 INFO L226 Difference]: Without dead ends: 4963 [2021-05-21 23:39:02,042 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 115.8ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:39:02,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4963 states. [2021-05-21 23:39:02,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4963 to 4963. [2021-05-21 23:39:02,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4963 states, 4962 states have (on average 3.4014510278113663) internal successors, (16878), 4962 states have internal predecessors, (16878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:02,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4963 states to 4963 states and 16878 transitions. [2021-05-21 23:39:02,358 INFO L78 Accepts]: Start accepts. Automaton has 4963 states and 16878 transitions. Word has length 48 [2021-05-21 23:39:02,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:39:02,361 INFO L482 AbstractCegarLoop]: Abstraction has 4963 states and 16878 transitions. [2021-05-21 23:39:02,362 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:02,362 INFO L276 IsEmpty]: Start isEmpty. Operand 4963 states and 16878 transitions. [2021-05-21 23:39:02,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-05-21 23:39:02,379 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:39:02,379 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:39:02,379 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-21 23:39:02,380 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:39:02,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:39:02,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1441415890, now seen corresponding path program 1 times [2021-05-21 23:39:02,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:39:02,383 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977278819] [2021-05-21 23:39:02,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:39:02,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:39:02,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:39:02,640 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:39:02,640 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977278819] [2021-05-21 23:39:02,640 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977278819] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:39:02,640 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:39:02,640 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 23:39:02,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686228302] [2021-05-21 23:39:02,642 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 23:39:02,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:39:02,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 23:39:02,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 23:39:02,643 INFO L87 Difference]: Start difference. First operand 4963 states and 16878 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:02,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:39:02,829 INFO L93 Difference]: Finished difference Result 5987 states and 20175 transitions. [2021-05-21 23:39:02,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 23:39:02,830 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-05-21 23:39:02,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:39:02,863 INFO L225 Difference]: With dead ends: 5987 [2021-05-21 23:39:02,864 INFO L226 Difference]: Without dead ends: 4783 [2021-05-21 23:39:02,865 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 145.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:39:02,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4783 states. [2021-05-21 23:39:03,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4783 to 4783. [2021-05-21 23:39:03,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4783 states, 4782 states have (on average 3.386449184441656) internal successors, (16194), 4782 states have internal predecessors, (16194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:03,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4783 states to 4783 states and 16194 transitions. [2021-05-21 23:39:03,063 INFO L78 Accepts]: Start accepts. Automaton has 4783 states and 16194 transitions. Word has length 50 [2021-05-21 23:39:03,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:39:03,063 INFO L482 AbstractCegarLoop]: Abstraction has 4783 states and 16194 transitions. [2021-05-21 23:39:03,063 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:03,064 INFO L276 IsEmpty]: Start isEmpty. Operand 4783 states and 16194 transitions. [2021-05-21 23:39:03,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-05-21 23:39:03,076 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:39:03,076 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:39:03,076 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-21 23:39:03,076 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:39:03,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:39:03,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1151429570, now seen corresponding path program 1 times [2021-05-21 23:39:03,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:39:03,077 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604259299] [2021-05-21 23:39:03,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:39:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:39:03,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:39:03,197 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:39:03,197 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604259299] [2021-05-21 23:39:03,197 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604259299] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:39:03,197 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:39:03,197 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 23:39:03,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114030695] [2021-05-21 23:39:03,198 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 23:39:03,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:39:03,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 23:39:03,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 23:39:03,199 INFO L87 Difference]: Start difference. First operand 4783 states and 16194 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:03,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:39:03,435 INFO L93 Difference]: Finished difference Result 7751 states and 25864 transitions. [2021-05-21 23:39:03,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 23:39:03,436 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-05-21 23:39:03,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:39:03,483 INFO L225 Difference]: With dead ends: 7751 [2021-05-21 23:39:03,484 INFO L226 Difference]: Without dead ends: 5287 [2021-05-21 23:39:03,484 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 113.6ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:39:03,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5287 states. [2021-05-21 23:39:03,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5287 to 4447. [2021-05-21 23:39:03,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4447 states, 4446 states have (on average 3.3067926225820963) internal successors, (14702), 4446 states have internal predecessors, (14702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:03,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4447 states to 4447 states and 14702 transitions. [2021-05-21 23:39:03,684 INFO L78 Accepts]: Start accepts. Automaton has 4447 states and 14702 transitions. Word has length 51 [2021-05-21 23:39:03,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:39:03,685 INFO L482 AbstractCegarLoop]: Abstraction has 4447 states and 14702 transitions. [2021-05-21 23:39:03,686 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:03,686 INFO L276 IsEmpty]: Start isEmpty. Operand 4447 states and 14702 transitions. [2021-05-21 23:39:03,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-05-21 23:39:03,696 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:39:03,697 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:39:03,697 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-21 23:39:03,697 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:39:03,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:39:03,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1344167279, now seen corresponding path program 1 times [2021-05-21 23:39:03,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:39:03,698 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709710992] [2021-05-21 23:39:03,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:39:03,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:39:03,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:39:03,834 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:39:03,834 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709710992] [2021-05-21 23:39:03,834 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709710992] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:39:03,834 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:39:03,834 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 23:39:03,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569174360] [2021-05-21 23:39:03,834 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 23:39:03,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:39:03,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 23:39:03,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 23:39:03,836 INFO L87 Difference]: Start difference. First operand 4447 states and 14702 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:04,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:39:04,052 INFO L93 Difference]: Finished difference Result 5379 states and 17463 transitions. [2021-05-21 23:39:04,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 23:39:04,054 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-05-21 23:39:04,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:39:04,072 INFO L225 Difference]: With dead ends: 5379 [2021-05-21 23:39:04,072 INFO L226 Difference]: Without dead ends: 4007 [2021-05-21 23:39:04,072 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 113.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:39:04,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4007 states. [2021-05-21 23:39:04,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4007 to 4007. [2021-05-21 23:39:04,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4007 states, 4006 states have (on average 3.240639041437843) internal successors, (12982), 4006 states have internal predecessors, (12982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:04,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4007 states to 4007 states and 12982 transitions. [2021-05-21 23:39:04,213 INFO L78 Accepts]: Start accepts. Automaton has 4007 states and 12982 transitions. Word has length 52 [2021-05-21 23:39:04,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:39:04,214 INFO L482 AbstractCegarLoop]: Abstraction has 4007 states and 12982 transitions. [2021-05-21 23:39:04,214 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:04,214 INFO L276 IsEmpty]: Start isEmpty. Operand 4007 states and 12982 transitions. [2021-05-21 23:39:04,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-05-21 23:39:04,223 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:39:04,223 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:39:04,223 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-21 23:39:04,223 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:39:04,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:39:04,224 INFO L82 PathProgramCache]: Analyzing trace with hash -613291728, now seen corresponding path program 1 times [2021-05-21 23:39:04,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:39:04,224 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638881929] [2021-05-21 23:39:04,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:39:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:39:04,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:39:04,321 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:39:04,321 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638881929] [2021-05-21 23:39:04,322 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638881929] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:39:04,322 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:39:04,322 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:39:04,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961033854] [2021-05-21 23:39:04,322 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:39:04,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:39:04,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:39:04,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:39:04,323 INFO L87 Difference]: Start difference. First operand 4007 states and 12982 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:04,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:39:04,522 INFO L93 Difference]: Finished difference Result 3935 states and 12349 transitions. [2021-05-21 23:39:04,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 23:39:04,523 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-05-21 23:39:04,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:39:04,531 INFO L225 Difference]: With dead ends: 3935 [2021-05-21 23:39:04,531 INFO L226 Difference]: Without dead ends: 2819 [2021-05-21 23:39:04,531 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 166.9ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-05-21 23:39:04,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2819 states. [2021-05-21 23:39:04,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2819 to 2819. [2021-05-21 23:39:04,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2819 states, 2818 states have (on average 3.092973740241306) internal successors, (8716), 2818 states have internal predecessors, (8716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:04,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 8716 transitions. [2021-05-21 23:39:04,597 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 8716 transitions. Word has length 54 [2021-05-21 23:39:04,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:39:04,597 INFO L482 AbstractCegarLoop]: Abstraction has 2819 states and 8716 transitions. [2021-05-21 23:39:04,597 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:04,597 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 8716 transitions. [2021-05-21 23:39:04,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-05-21 23:39:04,603 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:39:04,603 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:39:04,603 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-21 23:39:04,603 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:39:04,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:39:04,604 INFO L82 PathProgramCache]: Analyzing trace with hash -2079092717, now seen corresponding path program 1 times [2021-05-21 23:39:04,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:39:04,604 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108409627] [2021-05-21 23:39:04,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:39:04,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:39:04,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:39:04,715 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:39:04,715 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108409627] [2021-05-21 23:39:04,716 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108409627] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:39:04,716 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:39:04,716 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 23:39:04,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493973696] [2021-05-21 23:39:04,717 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 23:39:04,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:39:04,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 23:39:04,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 23:39:04,718 INFO L87 Difference]: Start difference. First operand 2819 states and 8716 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:04,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:39:04,846 INFO L93 Difference]: Finished difference Result 4337 states and 13310 transitions. [2021-05-21 23:39:04,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 23:39:04,847 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-05-21 23:39:04,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:39:04,855 INFO L225 Difference]: With dead ends: 4337 [2021-05-21 23:39:04,856 INFO L226 Difference]: Without dead ends: 2882 [2021-05-21 23:39:04,856 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 103.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:39:04,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2882 states. [2021-05-21 23:39:04,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2882 to 2666. [2021-05-21 23:39:04,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2666 states, 2665 states have (on average 3.0228893058161352) internal successors, (8056), 2665 states have internal predecessors, (8056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:04,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2666 states to 2666 states and 8056 transitions. [2021-05-21 23:39:04,992 INFO L78 Accepts]: Start accepts. Automaton has 2666 states and 8056 transitions. Word has length 56 [2021-05-21 23:39:04,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:39:04,992 INFO L482 AbstractCegarLoop]: Abstraction has 2666 states and 8056 transitions. [2021-05-21 23:39:04,992 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:04,992 INFO L276 IsEmpty]: Start isEmpty. Operand 2666 states and 8056 transitions. [2021-05-21 23:39:04,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-05-21 23:39:04,998 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:39:04,998 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:39:04,998 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-21 23:39:04,998 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:39:04,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:39:04,999 INFO L82 PathProgramCache]: Analyzing trace with hash -197508683, now seen corresponding path program 1 times [2021-05-21 23:39:04,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:39:04,999 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785007456] [2021-05-21 23:39:04,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:39:05,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:39:05,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:39:05,099 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:39:05,099 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785007456] [2021-05-21 23:39:05,099 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785007456] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:39:05,099 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:39:05,099 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-21 23:39:05,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766048909] [2021-05-21 23:39:05,100 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-21 23:39:05,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:39:05,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-21 23:39:05,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-05-21 23:39:05,100 INFO L87 Difference]: Start difference. First operand 2666 states and 8056 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:05,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:39:05,253 INFO L93 Difference]: Finished difference Result 2234 states and 6571 transitions. [2021-05-21 23:39:05,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 23:39:05,254 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-05-21 23:39:05,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:39:05,256 INFO L225 Difference]: With dead ends: 2234 [2021-05-21 23:39:05,256 INFO L226 Difference]: Without dead ends: 874 [2021-05-21 23:39:05,257 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 127.8ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-05-21 23:39:05,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2021-05-21 23:39:05,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 874. [2021-05-21 23:39:05,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 873 states have (on average 2.847651775486827) internal successors, (2486), 873 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:05,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 2486 transitions. [2021-05-21 23:39:05,276 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 2486 transitions. Word has length 56 [2021-05-21 23:39:05,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:39:05,276 INFO L482 AbstractCegarLoop]: Abstraction has 874 states and 2486 transitions. [2021-05-21 23:39:05,277 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:05,277 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 2486 transitions. [2021-05-21 23:39:05,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-05-21 23:39:05,279 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:39:05,279 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:39:05,279 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-05-21 23:39:05,279 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:39:05,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:39:05,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1992747379, now seen corresponding path program 1 times [2021-05-21 23:39:05,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:39:05,280 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916176365] [2021-05-21 23:39:05,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:39:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:39:05,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:39:05,398 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:39:05,398 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916176365] [2021-05-21 23:39:05,398 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916176365] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:39:05,398 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:39:05,398 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:39:05,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085992391] [2021-05-21 23:39:05,399 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:39:05,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:39:05,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:39:05,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:39:05,400 INFO L87 Difference]: Start difference. First operand 874 states and 2486 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:05,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:39:05,463 INFO L93 Difference]: Finished difference Result 820 states and 2324 transitions. [2021-05-21 23:39:05,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-21 23:39:05,464 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-05-21 23:39:05,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:39:05,464 INFO L225 Difference]: With dead ends: 820 [2021-05-21 23:39:05,464 INFO L226 Difference]: Without dead ends: 0 [2021-05-21 23:39:05,464 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 84.7ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:39:05,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-21 23:39:05,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-21 23:39:05,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:05,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-21 23:39:05,465 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2021-05-21 23:39:05,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:39:05,465 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-21 23:39:05,465 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:05,465 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-21 23:39:05,465 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 23:39:05,465 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-05-21 23:39:05,466 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-05-21 23:39:05,467 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-05-21 23:39:05,468 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 23:39:05,468 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 23:39:05,468 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 23:39:05,468 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 23:39:05,468 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 23:39:05,468 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 23:39:05,468 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 23:39:05,468 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-05-21 23:39:05,471 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 91 places, 83 transitions, 181 flow [2021-05-21 23:39:05,840 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:05,858 INFO L276 IsEmpty]: Start isEmpty. Operand has 9331 states, 9329 states have (on average 3.5626540893986496) internal successors, (33236), 9330 states have internal predecessors, (33236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:39:05,892 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 23:39:05,892 INFO L315 ceAbstractionStarter]: Result for error location InUseError was SAFE (2/2) [2021-05-21 23:39:05,892 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-05-21 23:39:05,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.05 11:39:05 BasicIcfg [2021-05-21 23:39:05,894 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-21 23:39:05,895 INFO L168 Benchmark]: Toolchain (without parser) took 6311.34 ms. Allocated memory was 348.1 MB in the beginning and 912.3 MB in the end (delta: 564.1 MB). Free memory was 309.8 MB in the beginning and 642.0 MB in the end (delta: -332.3 MB). Peak memory consumption was 233.8 MB. Max. memory is 16.0 GB. [2021-05-21 23:39:05,896 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 348.1 MB. Free memory was 328.1 MB in the beginning and 328.0 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 23:39:05,896 INFO L168 Benchmark]: CACSL2BoogieTranslator took 494.49 ms. Allocated memory is still 348.1 MB. Free memory was 309.6 MB in the beginning and 310.6 MB in the end (delta: -965.6 kB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. [2021-05-21 23:39:05,896 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.73 ms. Allocated memory is still 348.1 MB. Free memory was 310.6 MB in the beginning and 308.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 23:39:05,896 INFO L168 Benchmark]: Boogie Preprocessor took 31.78 ms. Allocated memory is still 348.1 MB. Free memory was 308.4 MB in the beginning and 307.4 MB in the end (delta: 943.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 23:39:05,897 INFO L168 Benchmark]: RCFGBuilder took 403.82 ms. Allocated memory is still 348.1 MB. Free memory was 307.4 MB in the beginning and 283.3 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-05-21 23:39:05,897 INFO L168 Benchmark]: TraceAbstraction took 5318.81 ms. Allocated memory was 348.1 MB in the beginning and 912.3 MB in the end (delta: 564.1 MB). Free memory was 282.3 MB in the beginning and 642.0 MB in the end (delta: -359.8 MB). Peak memory consumption was 207.5 MB. Max. memory is 16.0 GB. [2021-05-21 23:39:05,899 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 348.1 MB. Free memory was 328.1 MB in the beginning and 328.0 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 494.49 ms. Allocated memory is still 348.1 MB. Free memory was 309.6 MB in the beginning and 310.6 MB in the end (delta: -965.6 kB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 55.73 ms. Allocated memory is still 348.1 MB. Free memory was 310.6 MB in the beginning and 308.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 31.78 ms. Allocated memory is still 348.1 MB. Free memory was 308.4 MB in the beginning and 307.4 MB in the end (delta: 943.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 403.82 ms. Allocated memory is still 348.1 MB. Free memory was 307.4 MB in the beginning and 283.3 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5318.81 ms. Allocated memory was 348.1 MB in the beginning and 912.3 MB in the end (delta: 564.1 MB). Free memory was 282.3 MB in the beginning and 642.0 MB in the end (delta: -359.8 MB). Peak memory consumption was 207.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 106 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4793.3ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 131.7ms, AutomataDifference: 1689.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 616.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 867 SDtfs, 1145 SDslu, 2707 SDs, 0 SdLazy, 273 SolverSat, 51 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 275.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 970.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9331occurred in iteration=0, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1061.3ms AutomataMinimizationTime, 8 MinimizatonAttempts, 1056 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 29.8ms SsaConstructionTime, 241.2ms SatisfiabilityAnalysisTime, 831.9ms InterpolantComputationTime, 427 NumberOfCodeBlocks, 427 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 419 ConstructedInterpolants, 0 QuantifiedInterpolants, 1103 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 7 procedures, 106 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 424.1ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 51.4ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 372.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9331occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...