/usr/bin/java -Xmx8000000000 -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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 16:50:03,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 16:50:03,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 16:50:03,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-09 16:50:03,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 16:50:03,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 16:50:03,529 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 16:50:03,530 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.epf [2021-07-09 16:50:03,559 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 16:50:03,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 16:50:03,560 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-09 16:50:03,560 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-09 16:50:03,562 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 16:50:03,562 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 16:50:03,562 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 16:50:03,562 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 16:50:03,563 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 16:50:03,563 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 16:50:03,563 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 16:50:03,563 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 16:50:03,564 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 16:50:03,564 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 16:50:03,564 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 16:50:03,564 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 16:50:03,564 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 16:50:03,564 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 16:50:03,564 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 16:50:03,564 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 16:50:03,564 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 16:50:03,564 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 16:50:03,565 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 16:50:03,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 16:50:03,565 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 16:50:03,565 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 16:50:03,565 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 16:50:03,565 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 16:50:03,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 16:50:03,565 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 16:50:03,565 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 16:50:03,565 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 16:50:03,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 16:50:03,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 16:50:03,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 16:50:03,822 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-09 16:50:03,823 INFO L275 PluginConnector]: CDTParser initialized [2021-07-09 16:50:03,823 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i [2021-07-09 16:50:03,874 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/254c02f11/5d7d341c904349709188471c148065cd/FLAGdb7e6663f [2021-07-09 16:50:04,379 INFO L306 CDTParser]: Found 1 translation units. [2021-07-09 16:50:04,380 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i [2021-07-09 16:50:04,387 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/254c02f11/5d7d341c904349709188471c148065cd/FLAGdb7e6663f [2021-07-09 16:50:04,736 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/254c02f11/5d7d341c904349709188471c148065cd [2021-07-09 16:50:04,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 16:50:04,739 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-09 16:50:04,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-09 16:50:04,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-09 16:50:04,754 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-09 16:50:04,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:50:04" (1/1) ... [2021-07-09 16:50:04,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76deacd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:04, skipping insertion in model container [2021-07-09 16:50:04,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:50:04" (1/1) ... [2021-07-09 16:50:04,760 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-09 16:50:04,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-09 16:50:04,992 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/safe019_pso.opt.i[949,962] [2021-07-09 16:50:05,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:50:05,141 INFO L203 MainTranslator]: Completed pre-run [2021-07-09 16:50:05,149 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/safe019_pso.opt.i[949,962] [2021-07-09 16:50:05,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:50:05,217 INFO L208 MainTranslator]: Completed translation [2021-07-09 16:50:05,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:05 WrapperNode [2021-07-09 16:50:05,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-09 16:50:05,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 16:50:05,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 16:50:05,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 16:50:05,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:05" (1/1) ... [2021-07-09 16:50:05,250 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:05" (1/1) ... [2021-07-09 16:50:05,267 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 16:50:05,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 16:50:05,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 16:50:05,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 16:50:05,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:05" (1/1) ... [2021-07-09 16:50:05,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:05" (1/1) ... [2021-07-09 16:50:05,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:05" (1/1) ... [2021-07-09 16:50:05,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:05" (1/1) ... [2021-07-09 16:50:05,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:05" (1/1) ... [2021-07-09 16:50:05,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:05" (1/1) ... [2021-07-09 16:50:05,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:05" (1/1) ... [2021-07-09 16:50:05,295 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 16:50:05,296 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 16:50:05,296 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 16:50:05,296 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 16:50:05,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:05" (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 [2021-07-09 16:50:05,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-09 16:50:05,369 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-09 16:50:05,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-09 16:50:05,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-09 16:50:05,370 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-09 16:50:05,371 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-09 16:50:05,371 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-09 16:50:05,371 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-09 16:50:05,372 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-07-09 16:50:05,372 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-07-09 16:50:05,372 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-07-09 16:50:05,372 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-07-09 16:50:05,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-09 16:50:05,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-09 16:50:05,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 16:50:05,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 16:50:05,373 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 16:50:05,661 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 16:50:05,661 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-09 16:50:05,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:50:05 BoogieIcfgContainer [2021-07-09 16:50:05,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 16:50:05,664 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 16:50:05,664 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 16:50:05,666 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 16:50:05,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.07 04:50:04" (1/3) ... [2021-07-09 16:50:05,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6684a236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:50:05, skipping insertion in model container [2021-07-09 16:50:05,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:50:05" (2/3) ... [2021-07-09 16:50:05,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6684a236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:50:05, skipping insertion in model container [2021-07-09 16:50:05,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:50:05" (3/3) ... [2021-07-09 16:50:05,669 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_pso.opt.i [2021-07-09 16:50:05,690 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 16:50:05,691 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 16:50:05,691 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-09 16:50:05,692 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 16:50:05,726 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,726 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,726 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,726 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,726 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,726 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,726 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,727 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,727 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,727 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,727 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,727 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,727 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,727 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,727 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,727 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,727 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,728 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,728 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,728 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,729 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,729 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,729 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,729 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,730 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,730 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,730 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,730 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,730 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,731 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,731 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,731 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,731 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,732 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,732 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,732 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,732 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,732 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,732 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,732 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,732 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,732 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,732 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,732 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,733 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,734 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,734 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,734 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,735 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,735 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,736 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,736 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,741 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,741 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,741 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,741 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,743 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,743 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,743 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,743 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,745 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,746 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,746 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,746 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:50:05,747 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-09 16:50:05,762 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-07-09 16:50:05,773 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 16:50:05,773 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 16:50:05,773 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 16:50:05,773 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 16:50:05,773 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 16:50:05,773 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 16:50:05,773 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 16:50:05,774 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 16:50:05,780 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 109 places, 98 transitions, 216 flow [2021-07-09 16:50:06,692 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 28883 states, 28882 states have (on average 4.297659441866907) internal successors, (124125), 28882 states have internal predecessors, (124125), 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) [2021-07-09 16:50:06,753 INFO L276 IsEmpty]: Start isEmpty. Operand has 28883 states, 28882 states have (on average 4.297659441866907) internal successors, (124125), 28882 states have internal predecessors, (124125), 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) [2021-07-09 16:50:06,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-07-09 16:50:06,891 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:50:06,891 INFO L508 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] [2021-07-09 16:50:06,892 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:50:06,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:50:06,898 INFO L82 PathProgramCache]: Analyzing trace with hash -352002722, now seen corresponding path program 1 times [2021-07-09 16:50:06,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:50:06,904 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613654734] [2021-07-09 16:50:06,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:50:07,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:50:07,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:50:07,241 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:50:07,241 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613654734] [2021-07-09 16:50:07,241 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613654734] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:50:07,242 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:50:07,242 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 16:50:07,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305328759] [2021-07-09 16:50:07,245 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 16:50:07,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:50:07,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 16:50:07,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 16:50:07,311 INFO L87 Difference]: Start difference. First operand has 28883 states, 28882 states have (on average 4.297659441866907) internal successors, (124125), 28882 states have internal predecessors, (124125), 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 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:08,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:50:08,267 INFO L93 Difference]: Finished difference Result 53819 states and 224675 transitions. [2021-07-09 16:50:08,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 16:50:08,269 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-07-09 16:50:08,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:50:08,780 INFO L225 Difference]: With dead ends: 53819 [2021-07-09 16:50:08,780 INFO L226 Difference]: Without dead ends: 37367 [2021-07-09 16:50:08,781 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 136.6ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:50:08,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37367 states. [2021-07-09 16:50:10,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37367 to 31895. [2021-07-09 16:50:10,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31895 states, 31894 states have (on average 4.172916536025585) internal successors, (133091), 31894 states have internal predecessors, (133091), 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) [2021-07-09 16:50:10,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31895 states to 31895 states and 133091 transitions. [2021-07-09 16:50:10,589 INFO L78 Accepts]: Start accepts. Automaton has 31895 states and 133091 transitions. Word has length 56 [2021-07-09 16:50:10,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:50:10,590 INFO L482 AbstractCegarLoop]: Abstraction has 31895 states and 133091 transitions. [2021-07-09 16:50:10,590 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:10,590 INFO L276 IsEmpty]: Start isEmpty. Operand 31895 states and 133091 transitions. [2021-07-09 16:50:10,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-07-09 16:50:10,637 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:50:10,637 INFO L508 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] [2021-07-09 16:50:10,638 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 16:50:10,638 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:50:10,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:50:10,639 INFO L82 PathProgramCache]: Analyzing trace with hash -60288259, now seen corresponding path program 1 times [2021-07-09 16:50:10,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:50:10,639 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634389144] [2021-07-09 16:50:10,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:50:10,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:50:10,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:50:10,944 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:50:10,944 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634389144] [2021-07-09 16:50:10,944 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634389144] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:50:10,944 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:50:10,944 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:50:10,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936807743] [2021-07-09 16:50:10,946 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:50:10,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:50:10,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:50:10,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:50:10,947 INFO L87 Difference]: Start difference. First operand 31895 states and 133091 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) [2021-07-09 16:50:11,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:50:11,502 INFO L93 Difference]: Finished difference Result 44255 states and 182439 transitions. [2021-07-09 16:50:11,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 16:50:11,503 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 [2021-07-09 16:50:11,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:50:11,805 INFO L225 Difference]: With dead ends: 44255 [2021-07-09 16:50:11,805 INFO L226 Difference]: Without dead ends: 34127 [2021-07-09 16:50:11,806 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 311.8ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:50:11,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34127 states. [2021-07-09 16:50:12,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34127 to 30095. [2021-07-09 16:50:12,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30095 states, 30094 states have (on average 4.148567820828072) internal successors, (124847), 30094 states have internal predecessors, (124847), 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) [2021-07-09 16:50:12,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30095 states to 30095 states and 124847 transitions. [2021-07-09 16:50:12,996 INFO L78 Accepts]: Start accepts. Automaton has 30095 states and 124847 transitions. Word has length 58 [2021-07-09 16:50:12,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:50:13,000 INFO L482 AbstractCegarLoop]: Abstraction has 30095 states and 124847 transitions. [2021-07-09 16:50:13,000 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) [2021-07-09 16:50:13,000 INFO L276 IsEmpty]: Start isEmpty. Operand 30095 states and 124847 transitions. [2021-07-09 16:50:13,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-07-09 16:50:13,060 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:50:13,060 INFO L508 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] [2021-07-09 16:50:13,061 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 16:50:13,061 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:50:13,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:50:13,061 INFO L82 PathProgramCache]: Analyzing trace with hash -58694435, now seen corresponding path program 1 times [2021-07-09 16:50:13,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:50:13,062 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618940187] [2021-07-09 16:50:13,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:50:13,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:50:13,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:50:13,165 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:50:13,165 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618940187] [2021-07-09 16:50:13,165 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618940187] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:50:13,165 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:50:13,165 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:50:13,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664953615] [2021-07-09 16:50:13,166 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:50:13,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:50:13,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:50:13,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:50:13,167 INFO L87 Difference]: Start difference. First operand 30095 states and 124847 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) [2021-07-09 16:50:13,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:50:13,736 INFO L93 Difference]: Finished difference Result 37583 states and 154151 transitions. [2021-07-09 16:50:13,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 16:50:13,737 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 [2021-07-09 16:50:13,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:50:13,896 INFO L225 Difference]: With dead ends: 37583 [2021-07-09 16:50:13,896 INFO L226 Difference]: Without dead ends: 30959 [2021-07-09 16:50:13,897 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 133.0ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:50:14,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30959 states. [2021-07-09 16:50:14,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30959 to 26543. [2021-07-09 16:50:14,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26543 states, 26542 states have (on average 4.122937231557532) internal successors, (109431), 26542 states have internal predecessors, (109431), 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) [2021-07-09 16:50:15,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26543 states to 26543 states and 109431 transitions. [2021-07-09 16:50:15,071 INFO L78 Accepts]: Start accepts. Automaton has 26543 states and 109431 transitions. Word has length 58 [2021-07-09 16:50:15,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:50:15,071 INFO L482 AbstractCegarLoop]: Abstraction has 26543 states and 109431 transitions. [2021-07-09 16:50:15,072 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) [2021-07-09 16:50:15,072 INFO L276 IsEmpty]: Start isEmpty. Operand 26543 states and 109431 transitions. [2021-07-09 16:50:15,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-07-09 16:50:15,115 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:50:15,116 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:50:15,116 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-09 16:50:15,116 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:50:15,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:50:15,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1106030268, now seen corresponding path program 1 times [2021-07-09 16:50:15,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:50:15,117 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82761814] [2021-07-09 16:50:15,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:50:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:50:15,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:50:15,235 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:50:15,236 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82761814] [2021-07-09 16:50:15,236 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82761814] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:50:15,236 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:50:15,236 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 16:50:15,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255697446] [2021-07-09 16:50:15,239 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 16:50:15,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:50:15,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 16:50:15,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:50:15,241 INFO L87 Difference]: Start difference. First operand 26543 states and 109431 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:15,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:50:15,747 INFO L93 Difference]: Finished difference Result 43247 states and 177255 transitions. [2021-07-09 16:50:15,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-09 16:50:15,748 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-07-09 16:50:15,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:50:15,852 INFO L225 Difference]: With dead ends: 43247 [2021-07-09 16:50:15,852 INFO L226 Difference]: Without dead ends: 24348 [2021-07-09 16:50:15,853 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 89.0ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-07-09 16:50:16,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24348 states. [2021-07-09 16:50:16,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24348 to 21468. [2021-07-09 16:50:16,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21468 states, 21467 states have (on average 4.125075697582336) internal successors, (88553), 21467 states have internal predecessors, (88553), 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) [2021-07-09 16:50:16,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21468 states to 21468 states and 88553 transitions. [2021-07-09 16:50:16,785 INFO L78 Accepts]: Start accepts. Automaton has 21468 states and 88553 transitions. Word has length 60 [2021-07-09 16:50:16,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:50:16,785 INFO L482 AbstractCegarLoop]: Abstraction has 21468 states and 88553 transitions. [2021-07-09 16:50:16,786 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:16,786 INFO L276 IsEmpty]: Start isEmpty. Operand 21468 states and 88553 transitions. [2021-07-09 16:50:16,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-07-09 16:50:16,817 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:50:16,817 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:50:16,817 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-09 16:50:16,818 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:50:16,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:50:16,818 INFO L82 PathProgramCache]: Analyzing trace with hash 791952140, now seen corresponding path program 2 times [2021-07-09 16:50:16,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:50:16,818 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575705616] [2021-07-09 16:50:16,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:50:16,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:50:16,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:50:16,877 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:50:16,877 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575705616] [2021-07-09 16:50:16,877 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575705616] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:50:16,878 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:50:16,878 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 16:50:16,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708767812] [2021-07-09 16:50:16,878 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 16:50:16,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:50:16,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 16:50:16,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 16:50:16,879 INFO L87 Difference]: Start difference. First operand 21468 states and 88553 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:17,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:50:17,100 INFO L93 Difference]: Finished difference Result 23388 states and 95889 transitions. [2021-07-09 16:50:17,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 16:50:17,101 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-07-09 16:50:17,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:50:17,177 INFO L225 Difference]: With dead ends: 23388 [2021-07-09 16:50:17,178 INFO L226 Difference]: Without dead ends: 20028 [2021-07-09 16:50:17,178 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 75.8ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:50:17,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20028 states. [2021-07-09 16:50:17,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20028 to 20028. [2021-07-09 16:50:17,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20028 states, 20027 states have (on average 4.106506216607579) internal successors, (82241), 20027 states have internal predecessors, (82241), 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) [2021-07-09 16:50:18,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20028 states to 20028 states and 82241 transitions. [2021-07-09 16:50:18,067 INFO L78 Accepts]: Start accepts. Automaton has 20028 states and 82241 transitions. Word has length 60 [2021-07-09 16:50:18,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:50:18,067 INFO L482 AbstractCegarLoop]: Abstraction has 20028 states and 82241 transitions. [2021-07-09 16:50:18,067 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:50:18,067 INFO L276 IsEmpty]: Start isEmpty. Operand 20028 states and 82241 transitions. [2021-07-09 16:50:18,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-07-09 16:50:18,100 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:50:18,100 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:50:18,100 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-09 16:50:18,100 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:50:18,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:50:18,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1686656635, now seen corresponding path program 1 times [2021-07-09 16:50:18,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:50:18,101 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004523771] [2021-07-09 16:50:18,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:50:18,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:50:18,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:50:18,169 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:50:18,169 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004523771] [2021-07-09 16:50:18,169 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004523771] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:50:18,170 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:50:18,170 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 16:50:18,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908293076] [2021-07-09 16:50:18,170 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 16:50:18,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:50:18,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 16:50:18,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:50:18,171 INFO L87 Difference]: Start difference. First operand 20028 states and 82241 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 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) [2021-07-09 16:50:18,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:50:18,473 INFO L93 Difference]: Finished difference Result 32404 states and 131355 transitions. [2021-07-09 16:50:18,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 16:50:18,473 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 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 61 [2021-07-09 16:50:18,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:50:18,531 INFO L225 Difference]: With dead ends: 32404 [2021-07-09 16:50:18,531 INFO L226 Difference]: Without dead ends: 17416 [2021-07-09 16:50:18,531 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 100.3ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:50:18,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17416 states. [2021-07-09 16:50:18,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17416 to 14472. [2021-07-09 16:50:19,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14472 states, 14471 states have (on average 4.010296454978923) internal successors, (58033), 14471 states have internal predecessors, (58033), 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) [2021-07-09 16:50:19,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14472 states to 14472 states and 58033 transitions. [2021-07-09 16:50:19,061 INFO L78 Accepts]: Start accepts. Automaton has 14472 states and 58033 transitions. Word has length 61 [2021-07-09 16:50:19,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:50:19,061 INFO L482 AbstractCegarLoop]: Abstraction has 14472 states and 58033 transitions. [2021-07-09 16:50:19,061 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 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) [2021-07-09 16:50:19,061 INFO L276 IsEmpty]: Start isEmpty. Operand 14472 states and 58033 transitions. [2021-07-09 16:50:19,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-07-09 16:50:19,082 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:50:19,082 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:50:19,082 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-09 16:50:19,082 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:50:19,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:50:19,083 INFO L82 PathProgramCache]: Analyzing trace with hash -2060880144, now seen corresponding path program 1 times [2021-07-09 16:50:19,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:50:19,083 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486543264] [2021-07-09 16:50:19,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:50:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:50:19,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:50:19,136 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:50:19,136 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486543264] [2021-07-09 16:50:19,136 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486543264] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:50:19,136 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:50:19,136 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:50:19,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829786069] [2021-07-09 16:50:19,137 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:50:19,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:50:19,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:50:19,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:50:19,137 INFO L87 Difference]: Start difference. First operand 14472 states and 58033 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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) [2021-07-09 16:50:19,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:50:19,494 INFO L93 Difference]: Finished difference Result 22216 states and 88433 transitions. [2021-07-09 16:50:19,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:50:19,494 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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 63 [2021-07-09 16:50:19,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:50:19,548 INFO L225 Difference]: With dead ends: 22216 [2021-07-09 16:50:19,549 INFO L226 Difference]: Without dead ends: 14920 [2021-07-09 16:50:19,549 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 74.3ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-07-09 16:50:19,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14920 states. [2021-07-09 16:50:19,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14920 to 13000. [2021-07-09 16:50:19,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13000 states, 12999 states have (on average 3.95484268020617) internal successors, (51409), 12999 states have internal predecessors, (51409), 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) [2021-07-09 16:50:20,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13000 states to 13000 states and 51409 transitions. [2021-07-09 16:50:20,102 INFO L78 Accepts]: Start accepts. Automaton has 13000 states and 51409 transitions. Word has length 63 [2021-07-09 16:50:20,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:50:20,102 INFO L482 AbstractCegarLoop]: Abstraction has 13000 states and 51409 transitions. [2021-07-09 16:50:20,102 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 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) [2021-07-09 16:50:20,104 INFO L276 IsEmpty]: Start isEmpty. Operand 13000 states and 51409 transitions. [2021-07-09 16:50:20,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-07-09 16:50:20,126 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:50:20,126 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:50:20,126 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-09 16:50:20,127 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:50:20,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:50:20,127 INFO L82 PathProgramCache]: Analyzing trace with hash -583689558, now seen corresponding path program 1 times [2021-07-09 16:50:20,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:50:20,127 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683003336] [2021-07-09 16:50:20,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:50:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:50:20,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:50:20,217 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:50:20,219 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683003336] [2021-07-09 16:50:20,219 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683003336] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:50:20,219 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:50:20,219 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 16:50:20,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343163101] [2021-07-09 16:50:20,220 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 16:50:20,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:50:20,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 16:50:20,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 16:50:20,220 INFO L87 Difference]: Start difference. First operand 13000 states and 51409 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 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) [2021-07-09 16:50:20,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:50:20,392 INFO L93 Difference]: Finished difference Result 17372 states and 68227 transitions. [2021-07-09 16:50:20,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 16:50:20,392 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 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 64 [2021-07-09 16:50:20,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:50:20,434 INFO L225 Difference]: With dead ends: 17372 [2021-07-09 16:50:20,434 INFO L226 Difference]: Without dead ends: 12636 [2021-07-09 16:50:20,434 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 68.8ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:50:20,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12636 states. [2021-07-09 16:50:20,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12636 to 12636. [2021-07-09 16:50:20,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12636 states, 12635 states have (on average 3.9381875741986545) internal successors, (49759), 12635 states have internal predecessors, (49759), 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) [2021-07-09 16:50:20,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12636 states to 12636 states and 49759 transitions. [2021-07-09 16:50:20,866 INFO L78 Accepts]: Start accepts. Automaton has 12636 states and 49759 transitions. Word has length 64 [2021-07-09 16:50:20,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:50:20,866 INFO L482 AbstractCegarLoop]: Abstraction has 12636 states and 49759 transitions. [2021-07-09 16:50:20,866 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 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) [2021-07-09 16:50:20,866 INFO L276 IsEmpty]: Start isEmpty. Operand 12636 states and 49759 transitions. [2021-07-09 16:50:20,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-07-09 16:50:20,887 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:50:20,887 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:50:20,887 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-09 16:50:20,887 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:50:20,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:50:20,888 INFO L82 PathProgramCache]: Analyzing trace with hash 613569449, now seen corresponding path program 1 times [2021-07-09 16:50:20,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:50:20,888 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892208843] [2021-07-09 16:50:20,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:50:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:50:20,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:50:20,954 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:50:20,954 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892208843] [2021-07-09 16:50:20,954 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892208843] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:50:20,954 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:50:20,954 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:50:20,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619345063] [2021-07-09 16:50:20,954 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:50:20,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:50:20,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:50:20,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:50:20,955 INFO L87 Difference]: Start difference. First operand 12636 states and 49759 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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) [2021-07-09 16:50:21,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:50:21,135 INFO L93 Difference]: Finished difference Result 15534 states and 60340 transitions. [2021-07-09 16:50:21,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:50:21,136 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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 65 [2021-07-09 16:50:21,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:50:21,167 INFO L225 Difference]: With dead ends: 15534 [2021-07-09 16:50:21,167 INFO L226 Difference]: Without dead ends: 11070 [2021-07-09 16:50:21,167 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 76.7ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-07-09 16:50:21,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11070 states. [2021-07-09 16:50:21,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11070 to 11070. [2021-07-09 16:50:21,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11070 states, 11069 states have (on average 3.8690035233535096) internal successors, (42826), 11069 states have internal predecessors, (42826), 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) [2021-07-09 16:50:21,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11070 states to 11070 states and 42826 transitions. [2021-07-09 16:50:21,512 INFO L78 Accepts]: Start accepts. Automaton has 11070 states and 42826 transitions. Word has length 65 [2021-07-09 16:50:21,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:50:21,512 INFO L482 AbstractCegarLoop]: Abstraction has 11070 states and 42826 transitions. [2021-07-09 16:50:21,512 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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) [2021-07-09 16:50:21,512 INFO L276 IsEmpty]: Start isEmpty. Operand 11070 states and 42826 transitions. [2021-07-09 16:50:21,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-09 16:50:21,529 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:50:21,529 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:50:21,529 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-09 16:50:21,529 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:50:21,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:50:21,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1241656395, now seen corresponding path program 1 times [2021-07-09 16:50:21,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:50:21,530 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689384110] [2021-07-09 16:50:21,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:50:21,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:50:21,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:50:21,585 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:50:21,585 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689384110] [2021-07-09 16:50:21,585 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689384110] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:50:21,585 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:50:21,585 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 16:50:21,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246871757] [2021-07-09 16:50:21,586 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 16:50:21,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:50:21,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 16:50:21,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:50:21,586 INFO L87 Difference]: Start difference. First operand 11070 states and 42826 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 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) [2021-07-09 16:50:21,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:50:21,753 INFO L93 Difference]: Finished difference Result 11547 states and 43804 transitions. [2021-07-09 16:50:21,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 16:50:21,753 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 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 66 [2021-07-09 16:50:21,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:50:21,778 INFO L225 Difference]: With dead ends: 11547 [2021-07-09 16:50:21,778 INFO L226 Difference]: Without dead ends: 8163 [2021-07-09 16:50:21,779 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 81.6ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-07-09 16:50:21,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8163 states. [2021-07-09 16:50:21,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8163 to 8163. [2021-07-09 16:50:21,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8163 states, 8162 states have (on average 3.747733398676795) internal successors, (30589), 8162 states have internal predecessors, (30589), 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) [2021-07-09 16:50:21,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8163 states to 8163 states and 30589 transitions. [2021-07-09 16:50:21,938 INFO L78 Accepts]: Start accepts. Automaton has 8163 states and 30589 transitions. Word has length 66 [2021-07-09 16:50:21,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:50:21,938 INFO L482 AbstractCegarLoop]: Abstraction has 8163 states and 30589 transitions. [2021-07-09 16:50:21,939 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 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) [2021-07-09 16:50:21,939 INFO L276 IsEmpty]: Start isEmpty. Operand 8163 states and 30589 transitions. [2021-07-09 16:50:21,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-07-09 16:50:21,952 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:50:21,953 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:50:21,954 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-09 16:50:21,954 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:50:21,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:50:21,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1700666804, now seen corresponding path program 1 times [2021-07-09 16:50:21,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:50:21,955 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294436132] [2021-07-09 16:50:21,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:50:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:50:22,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:50:22,154 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:50:22,154 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294436132] [2021-07-09 16:50:22,154 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294436132] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:50:22,154 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:50:22,155 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-07-09 16:50:22,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544870400] [2021-07-09 16:50:22,155 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-09 16:50:22,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:50:22,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-09 16:50:22,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-07-09 16:50:22,156 INFO L87 Difference]: Start difference. First operand 8163 states and 30589 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 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) [2021-07-09 16:50:22,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:50:22,340 INFO L93 Difference]: Finished difference Result 7191 states and 26539 transitions. [2021-07-09 16:50:22,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-09 16:50:22,341 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 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 68 [2021-07-09 16:50:22,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:50:22,352 INFO L225 Difference]: With dead ends: 7191 [2021-07-09 16:50:22,352 INFO L226 Difference]: Without dead ends: 4227 [2021-07-09 16:50:22,352 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 121.9ms TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-07-09 16:50:22,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4227 states. [2021-07-09 16:50:22,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4227 to 4227. [2021-07-09 16:50:22,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4227 states, 4226 states have (on average 3.6138192143871275) internal successors, (15272), 4226 states have internal predecessors, (15272), 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) [2021-07-09 16:50:22,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4227 states to 4227 states and 15272 transitions. [2021-07-09 16:50:22,435 INFO L78 Accepts]: Start accepts. Automaton has 4227 states and 15272 transitions. Word has length 68 [2021-07-09 16:50:22,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:50:22,435 INFO L482 AbstractCegarLoop]: Abstraction has 4227 states and 15272 transitions. [2021-07-09 16:50:22,435 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 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) [2021-07-09 16:50:22,435 INFO L276 IsEmpty]: Start isEmpty. Operand 4227 states and 15272 transitions. [2021-07-09 16:50:22,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-07-09 16:50:22,443 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:50:22,443 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:50:22,443 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-07-09 16:50:22,443 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:50:22,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:50:22,443 INFO L82 PathProgramCache]: Analyzing trace with hash -229728129, now seen corresponding path program 1 times [2021-07-09 16:50:22,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:50:22,444 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711705721] [2021-07-09 16:50:22,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:50:22,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:50:22,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:50:22,502 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:50:22,502 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711705721] [2021-07-09 16:50:22,502 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711705721] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:50:22,502 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:50:22,502 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 16:50:22,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478108952] [2021-07-09 16:50:22,503 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 16:50:22,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:50:22,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 16:50:22,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 16:50:22,503 INFO L87 Difference]: Start difference. First operand 4227 states and 15272 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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) [2021-07-09 16:50:22,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:50:22,572 INFO L93 Difference]: Finished difference Result 4065 states and 14678 transitions. [2021-07-09 16:50:22,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 16:50:22,572 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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 70 [2021-07-09 16:50:22,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:50:22,573 INFO L225 Difference]: With dead ends: 4065 [2021-07-09 16:50:22,573 INFO L226 Difference]: Without dead ends: 0 [2021-07-09 16:50:22,573 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 64.8ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-09 16:50:22,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-09 16:50:22,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-09 16:50:22,573 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) [2021-07-09 16:50:22,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-09 16:50:22,574 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2021-07-09 16:50:22,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:50:22,574 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-09 16:50:22,574 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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) [2021-07-09 16:50:22,574 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-09 16:50:22,574 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-09 16:50:22,574 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-07-09 16:50:22,576 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-09 16:50:22,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.07 04:50:22 BasicIcfg [2021-07-09 16:50:22,577 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-09 16:50:22,578 INFO L168 Benchmark]: Toolchain (without parser) took 17838.93 ms. Allocated memory was 192.9 MB in the beginning and 7.1 GB in the end (delta: 6.9 GB). Free memory was 155.8 MB in the beginning and 5.3 GB in the end (delta: -5.1 GB). Peak memory consumption was 1.8 GB. Max. memory is 8.0 GB. [2021-07-09 16:50:22,578 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 192.9 MB. Free memory is still 174.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 16:50:22,578 INFO L168 Benchmark]: CACSL2BoogieTranslator took 478.45 ms. Allocated memory is still 192.9 MB. Free memory was 155.6 MB in the beginning and 165.6 MB in the end (delta: -10.0 MB). Peak memory consumption was 14.6 MB. Max. memory is 8.0 GB. [2021-07-09 16:50:22,578 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.64 ms. Allocated memory is still 192.9 MB. Free memory was 165.6 MB in the beginning and 163.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-09 16:50:22,579 INFO L168 Benchmark]: Boogie Preprocessor took 27.24 ms. Allocated memory is still 192.9 MB. Free memory was 163.6 MB in the beginning and 162.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-09 16:50:22,579 INFO L168 Benchmark]: RCFGBuilder took 366.60 ms. Allocated memory is still 192.9 MB. Free memory was 162.2 MB in the beginning and 136.7 MB in the end (delta: 25.5 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2021-07-09 16:50:22,579 INFO L168 Benchmark]: TraceAbstraction took 16913.63 ms. Allocated memory was 192.9 MB in the beginning and 7.1 GB in the end (delta: 6.9 GB). Free memory was 136.4 MB in the beginning and 5.3 GB in the end (delta: -5.1 GB). Peak memory consumption was 1.8 GB. Max. memory is 8.0 GB. [2021-07-09 16:50:22,580 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 192.9 MB. Free memory is still 174.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 478.45 ms. Allocated memory is still 192.9 MB. Free memory was 155.6 MB in the beginning and 165.6 MB in the end (delta: -10.0 MB). Peak memory consumption was 14.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 48.64 ms. Allocated memory is still 192.9 MB. Free memory was 165.6 MB in the beginning and 163.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 27.24 ms. Allocated memory is still 192.9 MB. Free memory was 163.6 MB in the beginning and 162.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 366.60 ms. Allocated memory is still 192.9 MB. Free memory was 162.2 MB in the beginning and 136.7 MB in the end (delta: 25.5 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 16913.63 ms. Allocated memory was 192.9 MB in the beginning and 7.1 GB in the end (delta: 6.9 GB). Free memory was 136.4 MB in the beginning and 5.3 GB in the end (delta: -5.1 GB). Peak memory consumption was 1.8 GB. Max. memory is 8.0 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 127 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16802.9ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 514.9ms, AutomataDifference: 5699.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 918.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1566 SDtfs, 2855 SDslu, 5188 SDs, 0 SdLazy, 589 SolverSat, 145 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 394.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 159 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1335.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=31895occurred in iteration=1, InterpolantAutomatonStates: 122, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 8082.3ms AutomataMinimizationTime, 12 MinimizatonAttempts, 21664 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 31.3ms SsaConstructionTime, 176.5ms SatisfiabilityAnalysisTime, 1209.1ms InterpolantComputationTime, 749 NumberOfCodeBlocks, 749 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 737 ConstructedInterpolants, 0 QuantifiedInterpolants, 3285 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...