/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/safe000_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-21 23:33:56,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-21 23:33:56,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-21 23:33:56,642 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-21 23:33:56,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-21 23:33:56,682 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-21 23:33:56,683 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-21 23:33:56,686 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 23:33:56,713 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-21 23:33:56,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-21 23:33:56,713 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-21 23:33:56,714 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-21 23:33:56,715 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-21 23:33:56,715 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-21 23:33:56,715 INFO L138 SettingsManager]: * Use SBE=true [2021-05-21 23:33:56,716 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-21 23:33:56,716 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-21 23:33:56,716 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-21 23:33:56,716 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-21 23:33:56,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-21 23:33:56,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-21 23:33:56,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-21 23:33:56,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-21 23:33:56,717 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-21 23:33:56,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-21 23:33:56,717 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-21 23:33:56,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-21 23:33:56,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-21 23:33:56,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-21 23:33:56,717 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-21 23:33:56,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-21 23:33:56,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 23:33:56,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-21 23:33:56,718 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-21 23:33:56,718 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-21 23:33:56,718 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-21 23:33:56,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-21 23:33:56,718 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-21 23:33:56,718 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-21 23:33:56,718 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-05-21 23:33:56,718 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-21 23:33:56,969 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-21 23:33:56,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-21 23:33:56,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-21 23:33:56,994 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-21 23:33:56,998 INFO L275 PluginConnector]: CDTParser initialized [2021-05-21 23:33:56,998 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i [2021-05-21 23:33:57,043 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5a0b1e53/6a7147b57fc149dca3dc364e445a07f9/FLAGd856c89b4 [2021-05-21 23:33:57,482 INFO L306 CDTParser]: Found 1 translation units. [2021-05-21 23:33:57,482 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i [2021-05-21 23:33:57,495 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5a0b1e53/6a7147b57fc149dca3dc364e445a07f9/FLAGd856c89b4 [2021-05-21 23:33:57,509 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5a0b1e53/6a7147b57fc149dca3dc364e445a07f9 [2021-05-21 23:33:57,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-21 23:33:57,513 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-21 23:33:57,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-21 23:33:57,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-21 23:33:57,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-21 23:33:57,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 11:33:57" (1/1) ... [2021-05-21 23:33:57,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a707824 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:33:57, skipping insertion in model container [2021-05-21 23:33:57,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 11:33:57" (1/1) ... [2021-05-21 23:33:57,524 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-21 23:33:57,558 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-21 23:33:57,721 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/safe000_pso.oepc.i[950,963] [2021-05-21 23:33:57,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 23:33:57,803 INFO L203 MainTranslator]: Completed pre-run [2021-05-21 23:33:57,810 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/safe000_pso.oepc.i[950,963] [2021-05-21 23:33:57,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 23:33:57,867 INFO L208 MainTranslator]: Completed translation [2021-05-21 23:33:57,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:33:57 WrapperNode [2021-05-21 23:33:57,867 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-21 23:33:57,868 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-21 23:33:57,868 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-21 23:33:57,868 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-21 23:33:57,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:33:57" (1/1) ... [2021-05-21 23:33:57,880 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:33:57" (1/1) ... [2021-05-21 23:33:57,892 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-21 23:33:57,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-21 23:33:57,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-21 23:33:57,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-21 23:33:57,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:33:57" (1/1) ... [2021-05-21 23:33:57,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:33:57" (1/1) ... [2021-05-21 23:33:57,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:33:57" (1/1) ... [2021-05-21 23:33:57,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:33:57" (1/1) ... [2021-05-21 23:33:57,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:33:57" (1/1) ... [2021-05-21 23:33:57,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:33:57" (1/1) ... [2021-05-21 23:33:57,904 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:33:57" (1/1) ... [2021-05-21 23:33:57,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-21 23:33:57,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-21 23:33:57,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-21 23:33:57,906 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-21 23:33:57,907 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:33:57" (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 23:33:57,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-21 23:33:57,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-05-21 23:33:57,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-21 23:33:57,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-21 23:33:57,970 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-05-21 23:33:57,970 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-05-21 23:33:57,970 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-05-21 23:33:57,970 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-05-21 23:33:57,970 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-05-21 23:33:57,970 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-05-21 23:33:57,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-21 23:33:57,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-05-21 23:33:57,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-21 23:33:57,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-21 23:33:57,972 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 23:33:58,318 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-21 23:33:58,318 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-05-21 23:33:58,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 11:33:58 BoogieIcfgContainer [2021-05-21 23:33:58,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-21 23:33:58,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-21 23:33:58,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-21 23:33:58,323 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-21 23:33:58,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.05 11:33:57" (1/3) ... [2021-05-21 23:33:58,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f45b62a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 11:33:58, skipping insertion in model container [2021-05-21 23:33:58,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:33:57" (2/3) ... [2021-05-21 23:33:58,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f45b62a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 11:33:58, skipping insertion in model container [2021-05-21 23:33:58,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 11:33:58" (3/3) ... [2021-05-21 23:33:58,325 INFO L111 eAbstractionObserver]: Analyzing ICFG safe000_pso.oepc.i [2021-05-21 23:33:58,330 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-21 23:33:58,330 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-21 23:33:58,331 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-05-21 23:33:58,331 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-21 23:33:58,354 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,354 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,354 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,354 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,354 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,354 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,354 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,355 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,357 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,357 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,357 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,357 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,357 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,358 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,358 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,358 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,359 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,359 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,359 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,359 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,362 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,363 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,363 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,363 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,364 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,364 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,364 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,364 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,364 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,364 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,365 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,365 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,365 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,365 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,365 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,365 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,367 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,367 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,367 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,367 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,370 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,370 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,370 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,370 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,371 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,372 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,372 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,372 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:33:58,375 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-05-21 23:33:58,388 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-21 23:33:58,399 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 23:33:58,399 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 23:33:58,399 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 23:33:58,400 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 23:33:58,400 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 23:33:58,400 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 23:33:58,400 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 23:33:58,400 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 23:33:58,406 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-05-21 23:33:58,705 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 23:33:58,738 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 23:33:58,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-05-21 23:33:58,785 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:33:58,785 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 23:33:58,786 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:33:58,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:33:58,791 INFO L82 PathProgramCache]: Analyzing trace with hash 663437649, now seen corresponding path program 1 times [2021-05-21 23:33:58,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:33:58,796 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571927989] [2021-05-21 23:33:58,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:33:58,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:33:59,058 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 23:33:59,058 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:33:59,058 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571927989] [2021-05-21 23:33:59,059 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571927989] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:33:59,059 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:33:59,059 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:33:59,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245018711] [2021-05-21 23:33:59,062 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:33:59,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:33:59,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:33:59,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:33:59,099 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 7 states, 7 states have (on average 7.0) internal successors, (49), 7 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 23:33:59,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:33:59,504 INFO L93 Difference]: Finished difference Result 17698 states and 60802 transitions. [2021-05-21 23:33:59,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-21 23:33:59,506 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 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 23:33:59,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:33:59,551 INFO L225 Difference]: With dead ends: 17698 [2021-05-21 23:33:59,551 INFO L226 Difference]: Without dead ends: 5948 [2021-05-21 23:33:59,552 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 175.0ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-05-21 23:33:59,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5948 states. [2021-05-21 23:33:59,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5948 to 5156. [2021-05-21 23:33:59,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5156 states, 5155 states have (on average 3.3594568380213383) internal successors, (17318), 5155 states have internal predecessors, (17318), 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 23:33:59,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5156 states to 5156 states and 17318 transitions. [2021-05-21 23:33:59,786 INFO L78 Accepts]: Start accepts. Automaton has 5156 states and 17318 transitions. Word has length 49 [2021-05-21 23:33:59,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:33:59,786 INFO L482 AbstractCegarLoop]: Abstraction has 5156 states and 17318 transitions. [2021-05-21 23:33:59,786 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 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 23:33:59,787 INFO L276 IsEmpty]: Start isEmpty. Operand 5156 states and 17318 transitions. [2021-05-21 23:33:59,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-05-21 23:33:59,794 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:33:59,795 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 23:33:59,795 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-21 23:33:59,795 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:33:59,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:33:59,795 INFO L82 PathProgramCache]: Analyzing trace with hash 2138163718, now seen corresponding path program 1 times [2021-05-21 23:33:59,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:33:59,796 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965900506] [2021-05-21 23:33:59,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:33:59,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:33:59,915 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 23:33:59,916 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:33:59,916 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965900506] [2021-05-21 23:33:59,916 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965900506] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:33:59,916 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:33:59,916 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:33:59,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608216259] [2021-05-21 23:33:59,917 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:33:59,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:33:59,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:33:59,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:33:59,918 INFO L87 Difference]: Start difference. First operand 5156 states and 17318 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 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 23:34:00,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:34:00,090 INFO L93 Difference]: Finished difference Result 6746 states and 22534 transitions. [2021-05-21 23:34:00,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 23:34:00,091 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 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 23:34:00,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:34:00,106 INFO L225 Difference]: With dead ends: 6746 [2021-05-21 23:34:00,106 INFO L226 Difference]: Without dead ends: 3270 [2021-05-21 23:34:00,106 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 104.7ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-05-21 23:34:00,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3270 states. [2021-05-21 23:34:00,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3270 to 3270. [2021-05-21 23:34:00,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3270 states, 3269 states have (on average 3.241358213520954) internal successors, (10596), 3269 states have internal predecessors, (10596), 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 23:34:00,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3270 states to 3270 states and 10596 transitions. [2021-05-21 23:34:00,188 INFO L78 Accepts]: Start accepts. Automaton has 3270 states and 10596 transitions. Word has length 52 [2021-05-21 23:34:00,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:34:00,189 INFO L482 AbstractCegarLoop]: Abstraction has 3270 states and 10596 transitions. [2021-05-21 23:34:00,189 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 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 23:34:00,189 INFO L276 IsEmpty]: Start isEmpty. Operand 3270 states and 10596 transitions. [2021-05-21 23:34:00,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-05-21 23:34:00,195 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:34:00,196 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] [2021-05-21 23:34:00,196 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-21 23:34:00,196 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:34:00,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:34:00,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1066159869, now seen corresponding path program 1 times [2021-05-21 23:34:00,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:34:00,197 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922472184] [2021-05-21 23:34:00,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:34:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:34:00,305 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 23:34:00,305 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:34:00,305 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922472184] [2021-05-21 23:34:00,306 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922472184] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:34:00,306 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:34:00,306 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:34:00,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878573205] [2021-05-21 23:34:00,306 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:34:00,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:34:00,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:34:00,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:34:00,307 INFO L87 Difference]: Start difference. First operand 3270 states and 10596 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 23:34:00,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:34:00,397 INFO L93 Difference]: Finished difference Result 3986 states and 12801 transitions. [2021-05-21 23:34:00,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 23:34:00,398 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 55 [2021-05-21 23:34:00,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:34:00,412 INFO L225 Difference]: With dead ends: 3986 [2021-05-21 23:34:00,412 INFO L226 Difference]: Without dead ends: 3538 [2021-05-21 23:34:00,412 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 75.4ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-05-21 23:34:00,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3538 states. [2021-05-21 23:34:00,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3538 to 3078. [2021-05-21 23:34:00,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3078 states, 3077 states have (on average 3.225219369515762) internal successors, (9924), 3077 states have internal predecessors, (9924), 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 23:34:00,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3078 states to 3078 states and 9924 transitions. [2021-05-21 23:34:00,476 INFO L78 Accepts]: Start accepts. Automaton has 3078 states and 9924 transitions. Word has length 55 [2021-05-21 23:34:00,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:34:00,477 INFO L482 AbstractCegarLoop]: Abstraction has 3078 states and 9924 transitions. [2021-05-21 23:34:00,477 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 23:34:00,477 INFO L276 IsEmpty]: Start isEmpty. Operand 3078 states and 9924 transitions. [2021-05-21 23:34:00,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-05-21 23:34:00,482 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:34:00,482 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 23:34:00,482 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-21 23:34:00,482 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:34:00,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:34:00,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1232463540, now seen corresponding path program 1 times [2021-05-21 23:34:00,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:34:00,483 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885239871] [2021-05-21 23:34:00,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:34:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:34:00,564 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 23:34:00,564 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:34:00,564 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885239871] [2021-05-21 23:34:00,564 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885239871] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:34:00,564 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:34:00,564 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:34:00,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097817700] [2021-05-21 23:34:00,565 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:34:00,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:34:00,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:34:00,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:34:00,565 INFO L87 Difference]: Start difference. First operand 3078 states and 9924 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 23:34:00,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:34:00,670 INFO L93 Difference]: Finished difference Result 4618 states and 14871 transitions. [2021-05-21 23:34:00,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 23:34:00,670 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 23:34:00,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:34:00,681 INFO L225 Difference]: With dead ends: 4618 [2021-05-21 23:34:00,682 INFO L226 Difference]: Without dead ends: 2798 [2021-05-21 23:34:00,682 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 87.6ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-05-21 23:34:00,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2021-05-21 23:34:00,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2798. [2021-05-21 23:34:00,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2797 states have (on average 3.1555237754737218) internal successors, (8826), 2797 states have internal predecessors, (8826), 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 23:34:00,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 8826 transitions. [2021-05-21 23:34:00,734 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 8826 transitions. Word has length 56 [2021-05-21 23:34:00,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:34:00,735 INFO L482 AbstractCegarLoop]: Abstraction has 2798 states and 8826 transitions. [2021-05-21 23:34:00,735 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 23:34:00,735 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 8826 transitions. [2021-05-21 23:34:00,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-05-21 23:34:00,740 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:34:00,740 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 23:34:00,740 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-21 23:34:00,740 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:34:00,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:34:00,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1506580816, now seen corresponding path program 1 times [2021-05-21 23:34:00,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:34:00,740 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055542107] [2021-05-21 23:34:00,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:34:00,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:34:00,805 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 23:34:00,805 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:34:00,805 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055542107] [2021-05-21 23:34:00,805 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055542107] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:34:00,805 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:34:00,805 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:34:00,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007170182] [2021-05-21 23:34:00,806 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:34:00,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:34:00,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:34:00,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:34:00,807 INFO L87 Difference]: Start difference. First operand 2798 states and 8826 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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 23:34:00,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:34:00,940 INFO L93 Difference]: Finished difference Result 4122 states and 12999 transitions. [2021-05-21 23:34:00,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 23:34:00,941 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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 23:34:00,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:34:00,945 INFO L225 Difference]: With dead ends: 4122 [2021-05-21 23:34:00,945 INFO L226 Difference]: Without dead ends: 1877 [2021-05-21 23:34:00,945 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 122.2ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-05-21 23:34:00,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1877 states. [2021-05-21 23:34:00,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1877 to 1877. [2021-05-21 23:34:00,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 1876 states have (on average 3.064498933901919) internal successors, (5749), 1876 states have internal predecessors, (5749), 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 23:34:00,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 5749 transitions. [2021-05-21 23:34:00,975 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 5749 transitions. Word has length 57 [2021-05-21 23:34:00,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:34:00,975 INFO L482 AbstractCegarLoop]: Abstraction has 1877 states and 5749 transitions. [2021-05-21 23:34:00,975 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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 23:34:00,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 5749 transitions. [2021-05-21 23:34:00,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-05-21 23:34:00,978 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:34:00,978 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 23:34:00,978 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-21 23:34:00,978 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:34:00,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:34:00,978 INFO L82 PathProgramCache]: Analyzing trace with hash 440921200, now seen corresponding path program 1 times [2021-05-21 23:34:00,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:34:00,979 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054942707] [2021-05-21 23:34:00,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:34:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:34:01,038 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 23:34:01,038 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:34:01,038 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054942707] [2021-05-21 23:34:01,039 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054942707] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:34:01,039 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:34:01,039 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 23:34:01,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951074693] [2021-05-21 23:34:01,039 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 23:34:01,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:34:01,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 23:34:01,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-21 23:34:01,042 INFO L87 Difference]: Start difference. First operand 1877 states and 5749 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 23:34:01,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:34:01,093 INFO L93 Difference]: Finished difference Result 1749 states and 5333 transitions. [2021-05-21 23:34:01,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-21 23:34:01,093 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 23:34:01,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:34:01,093 INFO L225 Difference]: With dead ends: 1749 [2021-05-21 23:34:01,093 INFO L226 Difference]: Without dead ends: 0 [2021-05-21 23:34:01,094 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 57.3ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:34:01,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-21 23:34:01,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-21 23:34:01,094 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 23:34:01,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-21 23:34:01,094 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-05-21 23:34:01,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:34:01,094 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-21 23:34:01,094 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 23:34:01,094 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-21 23:34:01,095 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 23:34:01,095 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-21 23:34:01,095 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-05-21 23:34:01,096 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-05-21 23:34:01,102 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 23:34:01,103 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 23:34:01,103 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 23:34:01,103 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 23:34:01,103 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 23:34:01,103 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 23:34:01,103 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 23:34:01,103 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-05-21 23:34:01,105 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-05-21 23:34:01,328 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 23:34:01,345 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 23:34:01,428 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 23:34:01,428 INFO L315 ceAbstractionStarter]: Result for error location InUseError was SAFE (2/2) [2021-05-21 23:34:01,428 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-05-21 23:34:01,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.05 11:34:01 BasicIcfg [2021-05-21 23:34:01,430 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-21 23:34:01,431 INFO L168 Benchmark]: Toolchain (without parser) took 3918.20 ms. Allocated memory was 404.8 MB in the beginning and 1.3 GB in the end (delta: 903.9 MB). Free memory was 367.4 MB in the beginning and 1.2 GB in the end (delta: -805.3 MB). Peak memory consumption was 269.7 MB. Max. memory is 16.0 GB. [2021-05-21 23:34:01,431 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 404.8 MB. Free memory was 385.4 MB in the beginning and 385.3 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 23:34:01,433 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.86 ms. Allocated memory is still 404.8 MB. Free memory was 367.2 MB in the beginning and 366.4 MB in the end (delta: 783.6 kB). Peak memory consumption was 5.3 MB. Max. memory is 16.0 GB. [2021-05-21 23:34:01,433 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.01 ms. Allocated memory is still 404.8 MB. Free memory was 366.4 MB in the beginning and 364.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 23:34:01,435 INFO L168 Benchmark]: Boogie Preprocessor took 13.36 ms. Allocated memory is still 404.8 MB. Free memory was 364.4 MB in the beginning and 363.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 23:34:01,435 INFO L168 Benchmark]: RCFGBuilder took 413.86 ms. Allocated memory is still 404.8 MB. Free memory was 363.3 MB in the beginning and 338.1 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-05-21 23:34:01,437 INFO L168 Benchmark]: TraceAbstraction took 3109.66 ms. Allocated memory was 404.8 MB in the beginning and 1.3 GB in the end (delta: 903.9 MB). Free memory was 338.1 MB in the beginning and 1.2 GB in the end (delta: -834.5 MB). Peak memory consumption was 241.3 MB. Max. memory is 16.0 GB. [2021-05-21 23:34:01,439 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 404.8 MB. Free memory was 385.4 MB in the beginning and 385.3 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 351.86 ms. Allocated memory is still 404.8 MB. Free memory was 367.2 MB in the beginning and 366.4 MB in the end (delta: 783.6 kB). Peak memory consumption was 5.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.01 ms. Allocated memory is still 404.8 MB. Free memory was 366.4 MB in the beginning and 364.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.36 ms. Allocated memory is still 404.8 MB. Free memory was 364.4 MB in the beginning and 363.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 413.86 ms. Allocated memory is still 404.8 MB. Free memory was 363.3 MB in the beginning and 338.1 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3109.66 ms. Allocated memory was 404.8 MB in the beginning and 1.3 GB in the end (delta: 903.9 MB). Free memory was 338.1 MB in the beginning and 1.2 GB in the end (delta: -834.5 MB). Peak memory consumption was 241.3 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: 2697.1ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 105.8ms, AutomataDifference: 1095.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 305.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 685 SDtfs, 970 SDslu, 2473 SDs, 0 SdLazy, 222 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 141.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 622.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9332occurred in iteration=0, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 451.8ms AutomataMinimizationTime, 6 MinimizatonAttempts, 1252 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 14.3ms SsaConstructionTime, 129.0ms SatisfiabilityAnalysisTime, 485.8ms InterpolantComputationTime, 327 NumberOfCodeBlocks, 327 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 321 ConstructedInterpolants, 0 QuantifiedInterpolants, 1429 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - 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: 325.7ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 99.9ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 225.1ms, 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...