/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/safe023_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-21 23:37:35,721 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-21 23:37:35,723 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-21 23:37:35,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-21 23:37:35,812 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-21 23:37:35,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-21 23:37:35,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-21 23:37:35,817 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 23:37:35,844 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-21 23:37:35,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-21 23:37:35,845 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-21 23:37:35,845 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-21 23:37:35,848 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-21 23:37:35,848 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-21 23:37:35,848 INFO L138 SettingsManager]: * Use SBE=true [2021-05-21 23:37:35,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-21 23:37:35,848 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-21 23:37:35,848 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-21 23:37:35,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-21 23:37:35,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-21 23:37:35,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-21 23:37:35,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-21 23:37:35,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-21 23:37:35,850 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-21 23:37:35,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-21 23:37:35,850 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-21 23:37:35,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-21 23:37:35,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-21 23:37:35,850 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-21 23:37:35,850 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-21 23:37:35,850 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-21 23:37:35,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 23:37:35,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-21 23:37:35,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-21 23:37:35,851 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-21 23:37:35,851 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-21 23:37:35,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-21 23:37:35,851 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-21 23:37:35,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-21 23:37:35,852 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-05-21 23:37:35,852 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-21 23:37:36,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-21 23:37:36,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-21 23:37:36,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-21 23:37:36,178 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-21 23:37:36,178 INFO L275 PluginConnector]: CDTParser initialized [2021-05-21 23:37:36,179 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.oepc.i [2021-05-21 23:37:36,233 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ebff36ec/02218a5c088c45c2877a4dc0a699756b/FLAG4a8c51a02 [2021-05-21 23:37:36,674 INFO L306 CDTParser]: Found 1 translation units. [2021-05-21 23:37:36,675 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.oepc.i [2021-05-21 23:37:36,698 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ebff36ec/02218a5c088c45c2877a4dc0a699756b/FLAG4a8c51a02 [2021-05-21 23:37:37,011 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ebff36ec/02218a5c088c45c2877a4dc0a699756b [2021-05-21 23:37:37,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-21 23:37:37,015 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-21 23:37:37,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-21 23:37:37,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-21 23:37:37,026 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-21 23:37:37,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 11:37:37" (1/1) ... [2021-05-21 23:37:37,027 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54a1465f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:37, skipping insertion in model container [2021-05-21 23:37:37,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 11:37:37" (1/1) ... [2021-05-21 23:37:37,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-21 23:37:37,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-21 23:37:37,224 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/safe023_tso.oepc.i[950,963] [2021-05-21 23:37:37,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 23:37:37,419 INFO L203 MainTranslator]: Completed pre-run [2021-05-21 23:37:37,430 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/safe023_tso.oepc.i[950,963] [2021-05-21 23:37:37,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 23:37:37,531 INFO L208 MainTranslator]: Completed translation [2021-05-21 23:37:37,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:37 WrapperNode [2021-05-21 23:37:37,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-21 23:37:37,533 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-21 23:37:37,533 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-21 23:37:37,533 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-21 23:37:37,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:37" (1/1) ... [2021-05-21 23:37:37,570 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:37" (1/1) ... [2021-05-21 23:37:37,586 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-21 23:37:37,588 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-21 23:37:37,588 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-21 23:37:37,588 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-21 23:37:37,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:37" (1/1) ... [2021-05-21 23:37:37,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:37" (1/1) ... [2021-05-21 23:37:37,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:37" (1/1) ... [2021-05-21 23:37:37,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:37" (1/1) ... [2021-05-21 23:37:37,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:37" (1/1) ... [2021-05-21 23:37:37,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:37" (1/1) ... [2021-05-21 23:37:37,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:37" (1/1) ... [2021-05-21 23:37:37,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-21 23:37:37,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-21 23:37:37,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-21 23:37:37,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-21 23:37:37,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:37" (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 23:37:37,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-21 23:37:37,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-05-21 23:37:37,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-21 23:37:37,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-21 23:37:37,709 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-05-21 23:37:37,709 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-05-21 23:37:37,709 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-05-21 23:37:37,709 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-05-21 23:37:37,710 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-05-21 23:37:37,710 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-05-21 23:37:37,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-21 23:37:37,710 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-05-21 23:37:37,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-21 23:37:37,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-21 23:37:37,711 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 23:37:38,157 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-21 23:37:38,157 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-05-21 23:37:38,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 11:37:38 BoogieIcfgContainer [2021-05-21 23:37:38,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-21 23:37:38,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-21 23:37:38,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-21 23:37:38,166 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-21 23:37:38,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.05 11:37:37" (1/3) ... [2021-05-21 23:37:38,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d29c725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 11:37:38, skipping insertion in model container [2021-05-21 23:37:38,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:37:37" (2/3) ... [2021-05-21 23:37:38,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d29c725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 11:37:38, skipping insertion in model container [2021-05-21 23:37:38,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 11:37:38" (3/3) ... [2021-05-21 23:37:38,169 INFO L111 eAbstractionObserver]: Analyzing ICFG safe023_tso.oepc.i [2021-05-21 23:37:38,177 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-21 23:37:38,178 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-21 23:37:38,178 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-05-21 23:37:38,179 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-21 23:37:38,215 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,215 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,215 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,215 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,215 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,215 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,216 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,218 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,219 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,219 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,219 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,219 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,220 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,220 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,220 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,220 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,221 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,221 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,221 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,222 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,226 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,226 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,227 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,227 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,227 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,228 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,228 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,228 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,228 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,228 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,229 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,229 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,229 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,229 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,230 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,230 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,231 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,232 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,232 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,232 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,240 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,240 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,240 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,241 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,243 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,243 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,243 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,243 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:37:38,247 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-05-21 23:37:38,268 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-21 23:37:38,294 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 23:37:38,294 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 23:37:38,294 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 23:37:38,295 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 23:37:38,295 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 23:37:38,295 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 23:37:38,295 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 23:37:38,295 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 23:37:38,309 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-05-21 23:37:38,773 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 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 23:37:38,816 INFO L276 IsEmpty]: Start isEmpty. Operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 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 23:37:38,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-05-21 23:37:38,863 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:37:38,863 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] [2021-05-21 23:37:38,864 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:37:38,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:37:38,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1943773822, now seen corresponding path program 1 times [2021-05-21 23:37:38,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:37:38,876 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990556916] [2021-05-21 23:37:38,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:37:39,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:37:39,211 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 23:37:39,212 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:37:39,212 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990556916] [2021-05-21 23:37:39,212 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990556916] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:37:39,213 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:37:39,213 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 23:37:39,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123067109] [2021-05-21 23:37:39,217 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 23:37:39,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:37:39,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 23:37:39,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 23:37:39,245 INFO L87 Difference]: Start difference. First operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 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 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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 23:37:39,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:37:39,562 INFO L93 Difference]: Finished difference Result 12223 states and 42407 transitions. [2021-05-21 23:37:39,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 23:37:39,564 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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 49 [2021-05-21 23:37:39,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:37:39,676 INFO L225 Difference]: With dead ends: 12223 [2021-05-21 23:37:39,676 INFO L226 Difference]: Without dead ends: 4628 [2021-05-21 23:37:39,677 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 141.6ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:37:39,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4628 states. [2021-05-21 23:37:39,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4628 to 4628. [2021-05-21 23:37:39,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4628 states, 4627 states have (on average 3.38599524529933) internal successors, (15667), 4627 states have internal predecessors, (15667), 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 23:37:39,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4628 states to 4628 states and 15667 transitions. [2021-05-21 23:37:39,947 INFO L78 Accepts]: Start accepts. Automaton has 4628 states and 15667 transitions. Word has length 49 [2021-05-21 23:37:39,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:37:39,950 INFO L482 AbstractCegarLoop]: Abstraction has 4628 states and 15667 transitions. [2021-05-21 23:37:39,951 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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 23:37:39,951 INFO L276 IsEmpty]: Start isEmpty. Operand 4628 states and 15667 transitions. [2021-05-21 23:37:40,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-05-21 23:37:40,003 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:37:40,003 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 23:37:40,003 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-21 23:37:40,003 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:37:40,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:37:40,004 INFO L82 PathProgramCache]: Analyzing trace with hash -303430371, now seen corresponding path program 1 times [2021-05-21 23:37:40,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:37:40,005 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168061042] [2021-05-21 23:37:40,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:37:40,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:37:40,171 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 23:37:40,171 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:37:40,171 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168061042] [2021-05-21 23:37:40,171 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168061042] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:37:40,171 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:37:40,171 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 23:37:40,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989020362] [2021-05-21 23:37:40,173 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 23:37:40,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:37:40,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 23:37:40,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 23:37:40,174 INFO L87 Difference]: Start difference. First operand 4628 states and 15667 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 23:37:40,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:37:40,359 INFO L93 Difference]: Finished difference Result 5488 states and 18430 transitions. [2021-05-21 23:37:40,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 23:37:40,360 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 23:37:40,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:37:40,385 INFO L225 Difference]: With dead ends: 5488 [2021-05-21 23:37:40,385 INFO L226 Difference]: Without dead ends: 4508 [2021-05-21 23:37:40,386 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 136.8ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:37:40,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4508 states. [2021-05-21 23:37:40,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4508 to 4508. [2021-05-21 23:37:40,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4508 states, 4507 states have (on average 3.374972265364988) internal successors, (15211), 4507 states have internal predecessors, (15211), 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 23:37:40,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4508 states to 4508 states and 15211 transitions. [2021-05-21 23:37:40,550 INFO L78 Accepts]: Start accepts. Automaton has 4508 states and 15211 transitions. Word has length 51 [2021-05-21 23:37:40,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:37:40,551 INFO L482 AbstractCegarLoop]: Abstraction has 4508 states and 15211 transitions. [2021-05-21 23:37:40,551 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 23:37:40,552 INFO L276 IsEmpty]: Start isEmpty. Operand 4508 states and 15211 transitions. [2021-05-21 23:37:40,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-05-21 23:37:40,564 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:37:40,564 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] [2021-05-21 23:37:40,564 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-21 23:37:40,564 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:37:40,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:37:40,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1290194594, now seen corresponding path program 1 times [2021-05-21 23:37:40,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:37:40,566 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946097351] [2021-05-21 23:37:40,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:37:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:37:40,759 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 23:37:40,760 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:37:40,760 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946097351] [2021-05-21 23:37:40,760 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946097351] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:37:40,760 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:37:40,760 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 23:37:40,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410542761] [2021-05-21 23:37:40,761 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 23:37:40,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:37:40,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 23:37:40,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 23:37:40,762 INFO L87 Difference]: Start difference. First operand 4508 states and 15211 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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 23:37:40,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:37:40,901 INFO L93 Difference]: Finished difference Result 4898 states and 16363 transitions. [2021-05-21 23:37:40,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 23:37:40,902 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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 53 [2021-05-21 23:37:40,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:37:40,923 INFO L225 Difference]: With dead ends: 4898 [2021-05-21 23:37:40,923 INFO L226 Difference]: Without dead ends: 3998 [2021-05-21 23:37:40,924 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 111.9ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:37:40,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3998 states. [2021-05-21 23:37:41,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3998 to 3998. [2021-05-21 23:37:41,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3998 states, 3997 states have (on average 3.3432574430823117) internal successors, (13363), 3997 states have internal predecessors, (13363), 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 23:37:41,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3998 states to 3998 states and 13363 transitions. [2021-05-21 23:37:41,034 INFO L78 Accepts]: Start accepts. Automaton has 3998 states and 13363 transitions. Word has length 53 [2021-05-21 23:37:41,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:37:41,036 INFO L482 AbstractCegarLoop]: Abstraction has 3998 states and 13363 transitions. [2021-05-21 23:37:41,036 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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 23:37:41,036 INFO L276 IsEmpty]: Start isEmpty. Operand 3998 states and 13363 transitions. [2021-05-21 23:37:41,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-05-21 23:37:41,045 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:37:41,045 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 23:37:41,045 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-21 23:37:41,045 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:37:41,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:37:41,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1811033892, now seen corresponding path program 1 times [2021-05-21 23:37:41,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:37:41,048 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425316388] [2021-05-21 23:37:41,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:37:41,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:37:41,255 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 23:37:41,255 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:37:41,255 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425316388] [2021-05-21 23:37:41,256 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425316388] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:37:41,256 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:37:41,256 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:37:41,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347996506] [2021-05-21 23:37:41,256 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:37:41,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:37:41,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:37:41,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:37:41,258 INFO L87 Difference]: Start difference. First operand 3998 states and 13363 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 23:37:41,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:37:41,551 INFO L93 Difference]: Finished difference Result 8913 states and 29300 transitions. [2021-05-21 23:37:41,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-21 23:37:41,552 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 23:37:41,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:37:41,582 INFO L225 Difference]: With dead ends: 8913 [2021-05-21 23:37:41,582 INFO L226 Difference]: Without dead ends: 3868 [2021-05-21 23:37:41,585 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 253.5ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-05-21 23:37:41,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3868 states. [2021-05-21 23:37:41,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3868 to 2928. [2021-05-21 23:37:41,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2928 states, 2927 states have (on average 3.169115134950461) internal successors, (9276), 2927 states have internal predecessors, (9276), 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 23:37:41,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2928 states to 2928 states and 9276 transitions. [2021-05-21 23:37:41,691 INFO L78 Accepts]: Start accepts. Automaton has 2928 states and 9276 transitions. Word has length 54 [2021-05-21 23:37:41,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:37:41,693 INFO L482 AbstractCegarLoop]: Abstraction has 2928 states and 9276 transitions. [2021-05-21 23:37:41,693 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 23:37:41,693 INFO L276 IsEmpty]: Start isEmpty. Operand 2928 states and 9276 transitions. [2021-05-21 23:37:41,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-05-21 23:37:41,701 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:37:41,702 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 23:37:41,704 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-21 23:37:41,704 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:37:41,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:37:41,706 INFO L82 PathProgramCache]: Analyzing trace with hash 690569953, now seen corresponding path program 1 times [2021-05-21 23:37:41,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:37:41,707 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729333013] [2021-05-21 23:37:41,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:37:41,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:37:41,833 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 23:37:41,834 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:37:41,834 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729333013] [2021-05-21 23:37:41,834 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729333013] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:37:41,834 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:37:41,834 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:37:41,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859658483] [2021-05-21 23:37:41,835 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:37:41,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:37:41,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:37:41,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:37:41,836 INFO L87 Difference]: Start difference. First operand 2928 states and 9276 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 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 23:37:42,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:37:42,001 INFO L93 Difference]: Finished difference Result 3336 states and 10430 transitions. [2021-05-21 23:37:42,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 23:37:42,002 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 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 23:37:42,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:37:42,006 INFO L225 Difference]: With dead ends: 3336 [2021-05-21 23:37:42,006 INFO L226 Difference]: Without dead ends: 1576 [2021-05-21 23:37:42,006 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 164.9ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-05-21 23:37:42,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2021-05-21 23:37:42,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1576. [2021-05-21 23:37:42,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 2.9638095238095237) internal successors, (4668), 1575 states have internal predecessors, (4668), 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 23:37:42,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 4668 transitions. [2021-05-21 23:37:42,036 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 4668 transitions. Word has length 56 [2021-05-21 23:37:42,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:37:42,037 INFO L482 AbstractCegarLoop]: Abstraction has 1576 states and 4668 transitions. [2021-05-21 23:37:42,037 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 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 23:37:42,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 4668 transitions. [2021-05-21 23:37:42,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-05-21 23:37:42,039 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:37:42,040 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] [2021-05-21 23:37:42,040 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-21 23:37:42,040 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:37:42,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:37:42,040 INFO L82 PathProgramCache]: Analyzing trace with hash -708582085, now seen corresponding path program 1 times [2021-05-21 23:37:42,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:37:42,040 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235178281] [2021-05-21 23:37:42,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:37:42,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:37:42,107 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 23:37:42,108 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:37:42,108 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235178281] [2021-05-21 23:37:42,108 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235178281] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:37:42,108 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:37:42,108 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 23:37:42,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831031493] [2021-05-21 23:37:42,108 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 23:37:42,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:37:42,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 23:37:42,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 23:37:42,109 INFO L87 Difference]: Start difference. First operand 1576 states and 4668 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 23:37:42,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:37:42,211 INFO L93 Difference]: Finished difference Result 1797 states and 5273 transitions. [2021-05-21 23:37:42,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 23:37:42,212 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 57 [2021-05-21 23:37:42,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:37:42,215 INFO L225 Difference]: With dead ends: 1797 [2021-05-21 23:37:42,215 INFO L226 Difference]: Without dead ends: 1421 [2021-05-21 23:37:42,216 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 87.4ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:37:42,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2021-05-21 23:37:42,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1421. [2021-05-21 23:37:42,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1421 states, 1420 states have (on average 2.9140845070422534) internal successors, (4138), 1420 states have internal predecessors, (4138), 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 23:37:42,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1421 states to 1421 states and 4138 transitions. [2021-05-21 23:37:42,244 INFO L78 Accepts]: Start accepts. Automaton has 1421 states and 4138 transitions. Word has length 57 [2021-05-21 23:37:42,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:37:42,245 INFO L482 AbstractCegarLoop]: Abstraction has 1421 states and 4138 transitions. [2021-05-21 23:37:42,246 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 23:37:42,246 INFO L276 IsEmpty]: Start isEmpty. Operand 1421 states and 4138 transitions. [2021-05-21 23:37:42,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-05-21 23:37:42,248 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:37:42,248 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] [2021-05-21 23:37:42,249 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-21 23:37:42,249 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:37:42,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:37:42,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1038431362, now seen corresponding path program 1 times [2021-05-21 23:37:42,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:37:42,251 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140227706] [2021-05-21 23:37:42,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:37:42,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:37:42,352 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 23:37:42,352 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:37:42,353 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140227706] [2021-05-21 23:37:42,353 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140227706] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:37:42,353 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:37:42,353 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:37:42,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455922532] [2021-05-21 23:37:42,353 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:37:42,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:37:42,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:37:42,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:37:42,354 INFO L87 Difference]: Start difference. First operand 1421 states and 4138 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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 23:37:42,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:37:42,478 INFO L93 Difference]: Finished difference Result 1307 states and 3699 transitions. [2021-05-21 23:37:42,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 23:37:42,479 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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 58 [2021-05-21 23:37:42,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:37:42,481 INFO L225 Difference]: With dead ends: 1307 [2021-05-21 23:37:42,482 INFO L226 Difference]: Without dead ends: 1031 [2021-05-21 23:37:42,482 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 100.7ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-05-21 23:37:42,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2021-05-21 23:37:42,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1031. [2021-05-21 23:37:42,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 1030 states have (on average 2.774757281553398) internal successors, (2858), 1030 states have internal predecessors, (2858), 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 23:37:42,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 2858 transitions. [2021-05-21 23:37:42,504 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 2858 transitions. Word has length 58 [2021-05-21 23:37:42,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:37:42,504 INFO L482 AbstractCegarLoop]: Abstraction has 1031 states and 2858 transitions. [2021-05-21 23:37:42,505 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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 23:37:42,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 2858 transitions. [2021-05-21 23:37:42,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-05-21 23:37:42,507 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:37:42,507 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] [2021-05-21 23:37:42,507 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-05-21 23:37:42,507 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:37:42,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:37:42,508 INFO L82 PathProgramCache]: Analyzing trace with hash 2126121667, now seen corresponding path program 1 times [2021-05-21 23:37:42,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:37:42,508 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179848389] [2021-05-21 23:37:42,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:37:42,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:37:42,649 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 23:37:42,649 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:37:42,649 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179848389] [2021-05-21 23:37:42,649 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179848389] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:37:42,649 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:37:42,649 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-21 23:37:42,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331532481] [2021-05-21 23:37:42,650 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-21 23:37:42,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:37:42,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-21 23:37:42,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-05-21 23:37:42,652 INFO L87 Difference]: Start difference. First operand 1031 states and 2858 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 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 23:37:42,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:37:42,729 INFO L93 Difference]: Finished difference Result 734 states and 1967 transitions. [2021-05-21 23:37:42,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-21 23:37:42,729 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 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 59 [2021-05-21 23:37:42,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:37:42,730 INFO L225 Difference]: With dead ends: 734 [2021-05-21 23:37:42,730 INFO L226 Difference]: Without dead ends: 0 [2021-05-21 23:37:42,730 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 105.3ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-05-21 23:37:42,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-21 23:37:42,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-21 23:37:42,731 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 23:37:42,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-21 23:37:42,731 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2021-05-21 23:37:42,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:37:42,731 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-21 23:37:42,731 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 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 23:37:42,731 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-21 23:37:42,731 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 23:37:42,731 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-05-21 23:37:42,732 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-05-21 23:37:42,734 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-05-21 23:37:42,735 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 23:37:42,735 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 23:37:42,735 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 23:37:42,735 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 23:37:42,735 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 23:37:42,735 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 23:37:42,735 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 23:37:42,735 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-05-21 23:37:42,737 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-05-21 23:37:43,025 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 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 23:37:43,046 INFO L276 IsEmpty]: Start isEmpty. Operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 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 23:37:43,082 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 23:37:43,082 INFO L315 ceAbstractionStarter]: Result for error location InUseError was SAFE (2/2) [2021-05-21 23:37:43,082 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-05-21 23:37:43,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.05 11:37:43 BasicIcfg [2021-05-21 23:37:43,085 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-21 23:37:43,085 INFO L168 Benchmark]: Toolchain (without parser) took 6070.40 ms. Allocated memory was 360.7 MB in the beginning and 761.3 MB in the end (delta: 400.6 MB). Free memory was 323.3 MB in the beginning and 544.5 MB in the end (delta: -221.3 MB). Peak memory consumption was 179.6 MB. Max. memory is 16.0 GB. [2021-05-21 23:37:43,086 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 360.7 MB. Free memory was 341.5 MB in the beginning and 341.4 MB in the end (delta: 72.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 23:37:43,086 INFO L168 Benchmark]: CACSL2BoogieTranslator took 512.80 ms. Allocated memory is still 360.7 MB. Free memory was 323.1 MB in the beginning and 322.9 MB in the end (delta: 257.4 kB). Peak memory consumption was 7.3 MB. Max. memory is 16.0 GB. [2021-05-21 23:37:43,086 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.38 ms. Allocated memory is still 360.7 MB. Free memory was 322.9 MB in the beginning and 320.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 23:37:43,086 INFO L168 Benchmark]: Boogie Preprocessor took 33.55 ms. Allocated memory is still 360.7 MB. Free memory was 320.8 MB in the beginning and 319.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 23:37:43,087 INFO L168 Benchmark]: RCFGBuilder took 538.89 ms. Allocated memory is still 360.7 MB. Free memory was 319.3 MB in the beginning and 294.5 MB in the end (delta: 24.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-05-21 23:37:43,087 INFO L168 Benchmark]: TraceAbstraction took 4921.41 ms. Allocated memory was 360.7 MB in the beginning and 761.3 MB in the end (delta: 400.6 MB). Free memory was 294.5 MB in the beginning and 544.5 MB in the end (delta: -250.0 MB). Peak memory consumption was 151.6 MB. Max. memory is 16.0 GB. [2021-05-21 23:37:43,088 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 360.7 MB. Free memory was 341.5 MB in the beginning and 341.4 MB in the end (delta: 72.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 512.80 ms. Allocated memory is still 360.7 MB. Free memory was 323.1 MB in the beginning and 322.9 MB in the end (delta: 257.4 kB). Peak memory consumption was 7.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 53.38 ms. Allocated memory is still 360.7 MB. Free memory was 322.9 MB in the beginning and 320.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 33.55 ms. Allocated memory is still 360.7 MB. Free memory was 320.8 MB in the beginning and 319.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 538.89 ms. Allocated memory is still 360.7 MB. Free memory was 319.3 MB in the beginning and 294.5 MB in the end (delta: 24.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4921.41 ms. Allocated memory was 360.7 MB in the beginning and 761.3 MB in the end (delta: 400.6 MB). Free memory was 294.5 MB in the beginning and 544.5 MB in the end (delta: -250.0 MB). Peak memory consumption was 151.6 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, 107 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4443.5ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 177.0ms, AutomataDifference: 1647.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 478.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 808 SDtfs, 1221 SDslu, 2584 SDs, 0 SdLazy, 284 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 257.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1102.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9332occurred in iteration=0, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 709.2ms AutomataMinimizationTime, 8 MinimizatonAttempts, 940 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 32.8ms SsaConstructionTime, 230.9ms SatisfiabilityAnalysisTime, 970.7ms InterpolantComputationTime, 437 NumberOfCodeBlocks, 437 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 429 ConstructedInterpolants, 0 QuantifiedInterpolants, 1209 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, 107 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 347.4ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 56.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 290.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9332occurred 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...