/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 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-12 17:18:58,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-12 17:18:58,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-12 17:18:58,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-12 17:18:58,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-12 17:18:58,068 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-12 17:18:58,069 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-12 17:18:58,069 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 [2021-06-12 17:18:58,084 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-12 17:18:58,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-12 17:18:58,085 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-12 17:18:58,085 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-12 17:18:58,085 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-12 17:18:58,086 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-12 17:18:58,086 INFO L138 SettingsManager]: * Use SBE=true [2021-06-12 17:18:58,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-12 17:18:58,086 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-12 17:18:58,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-12 17:18:58,086 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-12 17:18:58,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-12 17:18:58,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-12 17:18:58,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-12 17:18:58,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-12 17:18:58,087 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-12 17:18:58,087 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-12 17:18:58,087 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-12 17:18:58,087 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-12 17:18:58,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-12 17:18:58,087 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-12 17:18:58,087 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-12 17:18:58,087 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-12 17:18:58,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-12 17:18:58,088 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-12 17:18:58,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-12 17:18:58,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-12 17:18:58,104 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-12 17:18:58,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-12 17:18:58,105 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-12 17:18:58,105 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-12 17:18:58,105 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-12 17:18:58,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-12 17:18:58,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-12 17:18:58,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-12 17:18:58,331 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-12 17:18:58,332 INFO L275 PluginConnector]: CDTParser initialized [2021-06-12 17:18:58,333 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i [2021-06-12 17:18:58,389 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80ceee603/aee8882b3dbb4ba1b4fa1121fb817088/FLAGc5293cddc [2021-06-12 17:18:58,782 INFO L306 CDTParser]: Found 1 translation units. [2021-06-12 17:18:58,783 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i [2021-06-12 17:18:58,800 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80ceee603/aee8882b3dbb4ba1b4fa1121fb817088/FLAGc5293cddc [2021-06-12 17:18:59,155 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80ceee603/aee8882b3dbb4ba1b4fa1121fb817088 [2021-06-12 17:18:59,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-12 17:18:59,161 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-12 17:18:59,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-12 17:18:59,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-12 17:18:59,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-12 17:18:59,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 05:18:59" (1/1) ... [2021-06-12 17:18:59,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15a1a164 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:18:59, skipping insertion in model container [2021-06-12 17:18:59,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 05:18:59" (1/1) ... [2021-06-12 17:18:59,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-12 17:18:59,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-12 17:18:59,295 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] [2021-06-12 17:18:59,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 17:18:59,489 INFO L203 MainTranslator]: Completed pre-run [2021-06-12 17:18:59,497 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] [2021-06-12 17:18:59,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 17:18:59,568 INFO L208 MainTranslator]: Completed translation [2021-06-12 17:18:59,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:18:59 WrapperNode [2021-06-12 17:18:59,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-12 17:18:59,569 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-12 17:18:59,569 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-12 17:18:59,569 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-12 17:18:59,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:18:59" (1/1) ... [2021-06-12 17:18:59,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:18:59" (1/1) ... [2021-06-12 17:18:59,593 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-12 17:18:59,594 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-12 17:18:59,594 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-12 17:18:59,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-12 17:18:59,598 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:18:59" (1/1) ... [2021-06-12 17:18:59,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:18:59" (1/1) ... [2021-06-12 17:18:59,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:18:59" (1/1) ... [2021-06-12 17:18:59,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:18:59" (1/1) ... [2021-06-12 17:18:59,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:18:59" (1/1) ... [2021-06-12 17:18:59,605 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:18:59" (1/1) ... [2021-06-12 17:18:59,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:18:59" (1/1) ... [2021-06-12 17:18:59,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-12 17:18:59,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-12 17:18:59,608 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-12 17:18:59,608 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-12 17:18:59,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:18:59" (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 [2021-06-12 17:18:59,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-12 17:18:59,657 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-12 17:18:59,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-12 17:18:59,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-12 17:18:59,658 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-12 17:18:59,659 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-12 17:18:59,659 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-12 17:18:59,659 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-12 17:18:59,659 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-12 17:18:59,659 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-12 17:18:59,660 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-06-12 17:18:59,660 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-06-12 17:18:59,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-12 17:18:59,660 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-12 17:18:59,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-12 17:18:59,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-12 17:18:59,661 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-12 17:19:00,002 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-12 17:19:00,002 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-12 17:19:00,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 05:19:00 BoogieIcfgContainer [2021-06-12 17:19:00,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-12 17:19:00,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-12 17:19:00,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-12 17:19:00,006 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-12 17:19:00,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.06 05:18:59" (1/3) ... [2021-06-12 17:19:00,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a010c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 05:19:00, skipping insertion in model container [2021-06-12 17:19:00,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:18:59" (2/3) ... [2021-06-12 17:19:00,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a010c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 05:19:00, skipping insertion in model container [2021-06-12 17:19:00,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 05:19:00" (3/3) ... [2021-06-12 17:19:00,008 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_pso.opt.i [2021-06-12 17:19:00,011 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-12 17:19:00,011 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-12 17:19:00,011 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-12 17:19:00,012 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-12 17:19:00,033 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,033 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,033 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,033 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,034 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,034 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,034 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,034 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,034 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,034 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,034 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,034 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,035 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,035 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,035 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,035 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,035 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,035 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,035 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,035 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,035 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,035 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,035 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,036 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,036 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,036 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,036 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,036 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,045 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,045 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,045 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,045 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,045 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,046 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,046 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,046 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,046 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,046 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,046 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,046 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,046 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,046 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,046 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,047 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,047 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,047 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,047 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,047 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,048 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,048 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,049 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,049 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,052 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,052 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,052 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,052 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,054 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,054 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,054 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,054 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,055 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,055 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,056 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,056 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:19:00,057 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-12 17:19:00,069 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-12 17:19:00,080 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 17:19:00,081 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 17:19:00,081 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 17:19:00,081 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 17:19:00,081 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 17:19:00,081 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 17:19:00,081 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 17:19:00,081 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-12 17:19:00,087 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 109 places, 98 transitions, 216 flow [2021-06-12 17:19:04,115 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 51815 states, 51813 states have (on average 4.368652654739158) internal successors, (226353), 51814 states have internal predecessors, (226353), 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) [2021-06-12 17:19:04,183 INFO L276 IsEmpty]: Start isEmpty. Operand has 51815 states, 51813 states have (on average 4.368652654739158) internal successors, (226353), 51814 states have internal predecessors, (226353), 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) [2021-06-12 17:19:04,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-12 17:19:04,247 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:19:04,248 INFO L472 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] [2021-06-12 17:19:04,248 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:19:04,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:19:04,254 INFO L82 PathProgramCache]: Analyzing trace with hash -352002722, now seen corresponding path program 1 times [2021-06-12 17:19:04,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:19:04,259 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807577618] [2021-06-12 17:19:04,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:19:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:19:04,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:19:04,874 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:19:04,875 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807577618] [2021-06-12 17:19:04,875 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807577618] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:19:04,876 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:19:04,876 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:19:04,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392841453] [2021-06-12 17:19:04,880 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:19:04,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:19:04,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:19:04,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:19:04,951 INFO L87 Difference]: Start difference. First operand has 51815 states, 51813 states have (on average 4.368652654739158) internal successors, (226353), 51814 states have internal predecessors, (226353), 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) [2021-06-12 17:19:06,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:19:06,105 INFO L93 Difference]: Finished difference Result 117467 states and 500195 transitions. [2021-06-12 17:19:06,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:19:06,107 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 [2021-06-12 17:19:06,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:19:06,495 INFO L225 Difference]: With dead ends: 117467 [2021-06-12 17:19:06,495 INFO L226 Difference]: Without dead ends: 37367 [2021-06-12 17:19:06,496 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 191.8ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:19:06,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37367 states. [2021-06-12 17:19:07,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37367 to 31895. [2021-06-12 17:19:07,726 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) [2021-06-12 17:19:08,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31895 states to 31895 states and 133091 transitions. [2021-06-12 17:19:08,048 INFO L78 Accepts]: Start accepts. Automaton has 31895 states and 133091 transitions. Word has length 56 [2021-06-12 17:19:08,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:19:08,051 INFO L482 AbstractCegarLoop]: Abstraction has 31895 states and 133091 transitions. [2021-06-12 17:19:08,051 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) [2021-06-12 17:19:08,051 INFO L276 IsEmpty]: Start isEmpty. Operand 31895 states and 133091 transitions. [2021-06-12 17:19:08,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-12 17:19:08,107 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:19:08,107 INFO L472 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] [2021-06-12 17:19:08,107 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-12 17:19:08,107 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:19:08,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:19:08,108 INFO L82 PathProgramCache]: Analyzing trace with hash -60288259, now seen corresponding path program 1 times [2021-06-12 17:19:08,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:19:08,108 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18410344] [2021-06-12 17:19:08,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:19:08,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:19:08,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:19:08,274 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:19:08,274 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18410344] [2021-06-12 17:19:08,274 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18410344] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:19:08,274 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:19:08,274 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:19:08,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211281660] [2021-06-12 17:19:08,276 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:19:08,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:19:08,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:19:08,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:19:08,278 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) [2021-06-12 17:19:08,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:19:08,879 INFO L93 Difference]: Finished difference Result 44255 states and 182439 transitions. [2021-06-12 17:19:08,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-12 17:19:08,879 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 [2021-06-12 17:19:08,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:19:08,988 INFO L225 Difference]: With dead ends: 44255 [2021-06-12 17:19:08,989 INFO L226 Difference]: Without dead ends: 34127 [2021-06-12 17:19:08,989 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 217.5ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-12 17:19:09,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34127 states. [2021-06-12 17:19:09,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34127 to 30095. [2021-06-12 17:19:09,893 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) [2021-06-12 17:19:10,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30095 states to 30095 states and 124847 transitions. [2021-06-12 17:19:10,103 INFO L78 Accepts]: Start accepts. Automaton has 30095 states and 124847 transitions. Word has length 58 [2021-06-12 17:19:10,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:19:10,103 INFO L482 AbstractCegarLoop]: Abstraction has 30095 states and 124847 transitions. [2021-06-12 17:19:10,103 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) [2021-06-12 17:19:10,103 INFO L276 IsEmpty]: Start isEmpty. Operand 30095 states and 124847 transitions. [2021-06-12 17:19:10,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-12 17:19:10,136 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:19:10,136 INFO L472 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] [2021-06-12 17:19:10,136 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-12 17:19:10,136 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:19:10,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:19:10,137 INFO L82 PathProgramCache]: Analyzing trace with hash -58694435, now seen corresponding path program 1 times [2021-06-12 17:19:10,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:19:10,137 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074397102] [2021-06-12 17:19:10,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:19:10,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:19:10,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:19:10,221 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:19:10,221 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074397102] [2021-06-12 17:19:10,221 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074397102] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:19:10,221 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:19:10,221 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:19:10,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510780532] [2021-06-12 17:19:10,221 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:19:10,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:19:10,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:19:10,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:19:10,222 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) [2021-06-12 17:19:10,677 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-06-12 17:19:10,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:19:10,758 INFO L93 Difference]: Finished difference Result 37583 states and 154151 transitions. [2021-06-12 17:19:10,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-12 17:19:10,758 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 [2021-06-12 17:19:10,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:19:10,876 INFO L225 Difference]: With dead ends: 37583 [2021-06-12 17:19:10,877 INFO L226 Difference]: Without dead ends: 30959 [2021-06-12 17:19:10,877 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 316.8ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-12 17:19:10,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30959 states. [2021-06-12 17:19:11,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30959 to 26543. [2021-06-12 17:19:11,486 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) [2021-06-12 17:19:11,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26543 states to 26543 states and 109431 transitions. [2021-06-12 17:19:11,718 INFO L78 Accepts]: Start accepts. Automaton has 26543 states and 109431 transitions. Word has length 58 [2021-06-12 17:19:11,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:19:11,718 INFO L482 AbstractCegarLoop]: Abstraction has 26543 states and 109431 transitions. [2021-06-12 17:19:11,718 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) [2021-06-12 17:19:11,719 INFO L276 IsEmpty]: Start isEmpty. Operand 26543 states and 109431 transitions. [2021-06-12 17:19:11,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-12 17:19:11,756 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:19:11,756 INFO L472 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] [2021-06-12 17:19:11,756 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-12 17:19:11,757 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:19:11,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:19:11,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1106030268, now seen corresponding path program 1 times [2021-06-12 17:19:11,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:19:11,757 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40931525] [2021-06-12 17:19:11,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:19:11,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:19:11,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:19:11,889 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:19:11,889 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40931525] [2021-06-12 17:19:11,889 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40931525] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:19:11,891 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:19:11,891 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-12 17:19:11,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975136004] [2021-06-12 17:19:11,892 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-12 17:19:11,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:19:11,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-12 17:19:11,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-12 17:19:11,893 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) [2021-06-12 17:19:12,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:19:12,366 INFO L93 Difference]: Finished difference Result 43247 states and 177255 transitions. [2021-06-12 17:19:12,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-12 17:19:12,367 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 [2021-06-12 17:19:12,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:19:12,440 INFO L225 Difference]: With dead ends: 43247 [2021-06-12 17:19:12,441 INFO L226 Difference]: Without dead ends: 24348 [2021-06-12 17:19:12,441 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 77.5ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-06-12 17:19:12,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24348 states. [2021-06-12 17:19:12,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24348 to 21468. [2021-06-12 17:19:12,922 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) [2021-06-12 17:19:12,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21468 states to 21468 states and 88553 transitions. [2021-06-12 17:19:12,980 INFO L78 Accepts]: Start accepts. Automaton has 21468 states and 88553 transitions. Word has length 60 [2021-06-12 17:19:12,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:19:12,980 INFO L482 AbstractCegarLoop]: Abstraction has 21468 states and 88553 transitions. [2021-06-12 17:19:12,980 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) [2021-06-12 17:19:12,980 INFO L276 IsEmpty]: Start isEmpty. Operand 21468 states and 88553 transitions. [2021-06-12 17:19:13,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-12 17:19:13,006 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:19:13,006 INFO L472 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] [2021-06-12 17:19:13,006 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-12 17:19:13,006 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:19:13,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:19:13,007 INFO L82 PathProgramCache]: Analyzing trace with hash 791952140, now seen corresponding path program 2 times [2021-06-12 17:19:13,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:19:13,007 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624660141] [2021-06-12 17:19:13,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:19:13,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:19:13,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:19:13,064 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:19:13,064 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624660141] [2021-06-12 17:19:13,064 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624660141] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:19:13,064 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:19:13,064 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:19:13,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897537560] [2021-06-12 17:19:13,065 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:19:13,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:19:13,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:19:13,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:19:13,065 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) [2021-06-12 17:19:13,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:19:13,404 INFO L93 Difference]: Finished difference Result 23388 states and 95889 transitions. [2021-06-12 17:19:13,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:19:13,404 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 [2021-06-12 17:19:13,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:19:13,462 INFO L225 Difference]: With dead ends: 23388 [2021-06-12 17:19:13,462 INFO L226 Difference]: Without dead ends: 20028 [2021-06-12 17:19:13,463 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 88.5ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:19:13,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20028 states. [2021-06-12 17:19:13,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20028 to 20028. [2021-06-12 17:19:13,908 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) [2021-06-12 17:19:13,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20028 states to 20028 states and 82241 transitions. [2021-06-12 17:19:13,973 INFO L78 Accepts]: Start accepts. Automaton has 20028 states and 82241 transitions. Word has length 60 [2021-06-12 17:19:13,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:19:13,973 INFO L482 AbstractCegarLoop]: Abstraction has 20028 states and 82241 transitions. [2021-06-12 17:19:13,973 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) [2021-06-12 17:19:13,973 INFO L276 IsEmpty]: Start isEmpty. Operand 20028 states and 82241 transitions. [2021-06-12 17:19:13,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-12 17:19:13,998 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:19:13,998 INFO L472 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] [2021-06-12 17:19:13,998 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-12 17:19:13,998 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:19:13,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:19:13,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1686656635, now seen corresponding path program 1 times [2021-06-12 17:19:13,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:19:13,999 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454336722] [2021-06-12 17:19:13,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:19:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:19:14,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:19:14,092 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:19:14,092 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454336722] [2021-06-12 17:19:14,092 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454336722] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:19:14,092 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:19:14,092 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-12 17:19:14,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482432365] [2021-06-12 17:19:14,094 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-12 17:19:14,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:19:14,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-12 17:19:14,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-12 17:19:14,097 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) [2021-06-12 17:19:14,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:19:14,563 INFO L93 Difference]: Finished difference Result 32404 states and 131355 transitions. [2021-06-12 17:19:14,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-12 17:19:14,564 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 [2021-06-12 17:19:14,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:19:14,605 INFO L225 Difference]: With dead ends: 32404 [2021-06-12 17:19:14,606 INFO L226 Difference]: Without dead ends: 17416 [2021-06-12 17:19:14,606 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 120.3ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-12 17:19:14,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17416 states. [2021-06-12 17:19:14,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17416 to 14472. [2021-06-12 17:19:14,856 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) [2021-06-12 17:19:15,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14472 states to 14472 states and 58033 transitions. [2021-06-12 17:19:15,054 INFO L78 Accepts]: Start accepts. Automaton has 14472 states and 58033 transitions. Word has length 61 [2021-06-12 17:19:15,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:19:15,055 INFO L482 AbstractCegarLoop]: Abstraction has 14472 states and 58033 transitions. [2021-06-12 17:19:15,055 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) [2021-06-12 17:19:15,055 INFO L276 IsEmpty]: Start isEmpty. Operand 14472 states and 58033 transitions. [2021-06-12 17:19:15,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-06-12 17:19:15,073 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:19:15,074 INFO L472 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] [2021-06-12 17:19:15,074 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-12 17:19:15,074 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:19:15,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:19:15,074 INFO L82 PathProgramCache]: Analyzing trace with hash -2060880144, now seen corresponding path program 1 times [2021-06-12 17:19:15,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:19:15,075 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701910345] [2021-06-12 17:19:15,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:19:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:19:15,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:19:15,142 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:19:15,142 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701910345] [2021-06-12 17:19:15,142 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701910345] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:19:15,143 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:19:15,143 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:19:15,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57147040] [2021-06-12 17:19:15,143 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:19:15,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:19:15,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:19:15,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:19:15,143 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) [2021-06-12 17:19:15,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:19:15,321 INFO L93 Difference]: Finished difference Result 22216 states and 88433 transitions. [2021-06-12 17:19:15,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 17:19:15,322 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 [2021-06-12 17:19:15,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:19:15,355 INFO L225 Difference]: With dead ends: 22216 [2021-06-12 17:19:15,355 INFO L226 Difference]: Without dead ends: 14920 [2021-06-12 17:19:15,356 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 71.3ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-12 17:19:15,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14920 states. [2021-06-12 17:19:15,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14920 to 13000. [2021-06-12 17:19:15,675 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) [2021-06-12 17:19:15,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13000 states to 13000 states and 51409 transitions. [2021-06-12 17:19:15,709 INFO L78 Accepts]: Start accepts. Automaton has 13000 states and 51409 transitions. Word has length 63 [2021-06-12 17:19:15,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:19:15,710 INFO L482 AbstractCegarLoop]: Abstraction has 13000 states and 51409 transitions. [2021-06-12 17:19:15,710 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) [2021-06-12 17:19:15,710 INFO L276 IsEmpty]: Start isEmpty. Operand 13000 states and 51409 transitions. [2021-06-12 17:19:15,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-06-12 17:19:15,726 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:19:15,727 INFO L472 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] [2021-06-12 17:19:15,727 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-12 17:19:15,727 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:19:15,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:19:15,727 INFO L82 PathProgramCache]: Analyzing trace with hash -583689558, now seen corresponding path program 1 times [2021-06-12 17:19:15,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:19:15,727 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235003518] [2021-06-12 17:19:15,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:19:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:19:15,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:19:15,782 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:19:15,782 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235003518] [2021-06-12 17:19:15,782 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235003518] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:19:15,782 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:19:15,782 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:19:15,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194842837] [2021-06-12 17:19:15,782 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:19:15,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:19:15,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:19:15,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:19:15,783 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) [2021-06-12 17:19:15,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:19:15,922 INFO L93 Difference]: Finished difference Result 17372 states and 68227 transitions. [2021-06-12 17:19:15,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:19:15,923 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 [2021-06-12 17:19:15,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:19:15,950 INFO L225 Difference]: With dead ends: 17372 [2021-06-12 17:19:15,950 INFO L226 Difference]: Without dead ends: 12636 [2021-06-12 17:19:15,951 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 61.8ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:19:15,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12636 states. [2021-06-12 17:19:16,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12636 to 12636. [2021-06-12 17:19:16,269 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) [2021-06-12 17:19:16,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12636 states to 12636 states and 49759 transitions. [2021-06-12 17:19:16,307 INFO L78 Accepts]: Start accepts. Automaton has 12636 states and 49759 transitions. Word has length 64 [2021-06-12 17:19:16,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:19:16,307 INFO L482 AbstractCegarLoop]: Abstraction has 12636 states and 49759 transitions. [2021-06-12 17:19:16,307 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) [2021-06-12 17:19:16,308 INFO L276 IsEmpty]: Start isEmpty. Operand 12636 states and 49759 transitions. [2021-06-12 17:19:16,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-06-12 17:19:16,325 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:19:16,325 INFO L472 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] [2021-06-12 17:19:16,325 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-12 17:19:16,325 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:19:16,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:19:16,326 INFO L82 PathProgramCache]: Analyzing trace with hash 613569449, now seen corresponding path program 1 times [2021-06-12 17:19:16,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:19:16,326 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821967552] [2021-06-12 17:19:16,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:19:16,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:19:16,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:19:16,388 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:19:16,388 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821967552] [2021-06-12 17:19:16,388 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821967552] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:19:16,389 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:19:16,389 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:19:16,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435693579] [2021-06-12 17:19:16,390 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:19:16,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:19:16,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:19:16,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:19:16,391 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) [2021-06-12 17:19:16,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:19:16,565 INFO L93 Difference]: Finished difference Result 15534 states and 60340 transitions. [2021-06-12 17:19:16,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 17:19:16,566 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 [2021-06-12 17:19:16,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:19:16,591 INFO L225 Difference]: With dead ends: 15534 [2021-06-12 17:19:16,591 INFO L226 Difference]: Without dead ends: 11070 [2021-06-12 17:19:16,591 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 81.8ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-12 17:19:16,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11070 states. [2021-06-12 17:19:16,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11070 to 11070. [2021-06-12 17:19:16,889 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) [2021-06-12 17:19:16,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11070 states to 11070 states and 42826 transitions. [2021-06-12 17:19:16,915 INFO L78 Accepts]: Start accepts. Automaton has 11070 states and 42826 transitions. Word has length 65 [2021-06-12 17:19:16,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:19:16,916 INFO L482 AbstractCegarLoop]: Abstraction has 11070 states and 42826 transitions. [2021-06-12 17:19:16,916 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) [2021-06-12 17:19:16,916 INFO L276 IsEmpty]: Start isEmpty. Operand 11070 states and 42826 transitions. [2021-06-12 17:19:16,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-12 17:19:16,931 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:19:16,931 INFO L472 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] [2021-06-12 17:19:16,931 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-12 17:19:16,931 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:19:16,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:19:16,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1241656395, now seen corresponding path program 1 times [2021-06-12 17:19:16,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:19:16,932 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720962774] [2021-06-12 17:19:16,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:19:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:19:16,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:19:16,993 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:19:16,993 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720962774] [2021-06-12 17:19:16,993 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720962774] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:19:16,993 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:19:16,994 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-12 17:19:16,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144081462] [2021-06-12 17:19:16,994 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-12 17:19:16,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:19:16,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-12 17:19:16,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-12 17:19:16,994 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) [2021-06-12 17:19:17,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:19:17,161 INFO L93 Difference]: Finished difference Result 11547 states and 43804 transitions. [2021-06-12 17:19:17,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-12 17:19:17,162 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 [2021-06-12 17:19:17,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:19:17,178 INFO L225 Difference]: With dead ends: 11547 [2021-06-12 17:19:17,178 INFO L226 Difference]: Without dead ends: 8163 [2021-06-12 17:19:17,178 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 85.8ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-06-12 17:19:17,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8163 states. [2021-06-12 17:19:17,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8163 to 8163. [2021-06-12 17:19:17,284 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) [2021-06-12 17:19:17,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8163 states to 8163 states and 30589 transitions. [2021-06-12 17:19:17,302 INFO L78 Accepts]: Start accepts. Automaton has 8163 states and 30589 transitions. Word has length 66 [2021-06-12 17:19:17,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:19:17,303 INFO L482 AbstractCegarLoop]: Abstraction has 8163 states and 30589 transitions. [2021-06-12 17:19:17,303 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) [2021-06-12 17:19:17,303 INFO L276 IsEmpty]: Start isEmpty. Operand 8163 states and 30589 transitions. [2021-06-12 17:19:17,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-06-12 17:19:17,313 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:19:17,313 INFO L472 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] [2021-06-12 17:19:17,314 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-12 17:19:17,314 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:19:17,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:19:17,314 INFO L82 PathProgramCache]: Analyzing trace with hash 652073940, now seen corresponding path program 1 times [2021-06-12 17:19:17,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:19:17,314 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582569192] [2021-06-12 17:19:17,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:19:17,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:19:17,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:19:17,379 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:19:17,379 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582569192] [2021-06-12 17:19:17,379 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582569192] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:19:17,379 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:19:17,379 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-12 17:19:17,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46418651] [2021-06-12 17:19:17,380 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-12 17:19:17,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:19:17,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-12 17:19:17,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-12 17:19:17,380 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) [2021-06-12 17:19:17,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:19:17,678 INFO L93 Difference]: Finished difference Result 7191 states and 26539 transitions. [2021-06-12 17:19:17,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-12 17:19:17,678 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 [2021-06-12 17:19:17,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:19:17,686 INFO L225 Difference]: With dead ends: 7191 [2021-06-12 17:19:17,686 INFO L226 Difference]: Without dead ends: 4227 [2021-06-12 17:19:17,686 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 101.9ms TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-06-12 17:19:17,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4227 states. [2021-06-12 17:19:17,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4227 to 4227. [2021-06-12 17:19:17,742 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) [2021-06-12 17:19:17,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4227 states to 4227 states and 15272 transitions. [2021-06-12 17:19:17,751 INFO L78 Accepts]: Start accepts. Automaton has 4227 states and 15272 transitions. Word has length 68 [2021-06-12 17:19:17,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:19:17,751 INFO L482 AbstractCegarLoop]: Abstraction has 4227 states and 15272 transitions. [2021-06-12 17:19:17,751 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) [2021-06-12 17:19:17,752 INFO L276 IsEmpty]: Start isEmpty. Operand 4227 states and 15272 transitions. [2021-06-12 17:19:17,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-06-12 17:19:17,757 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:19:17,757 INFO L472 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] [2021-06-12 17:19:17,757 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-12 17:19:17,757 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:19:17,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:19:17,758 INFO L82 PathProgramCache]: Analyzing trace with hash -2059891105, now seen corresponding path program 1 times [2021-06-12 17:19:17,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:19:17,758 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114390086] [2021-06-12 17:19:17,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:19:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:19:17,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:19:17,828 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:19:17,828 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114390086] [2021-06-12 17:19:17,828 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114390086] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:19:17,828 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:19:17,828 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 17:19:17,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604470954] [2021-06-12 17:19:17,829 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 17:19:17,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:19:17,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 17:19:17,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:19:17,829 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) [2021-06-12 17:19:17,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:19:17,889 INFO L93 Difference]: Finished difference Result 4065 states and 14678 transitions. [2021-06-12 17:19:17,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-12 17:19:17,889 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 [2021-06-12 17:19:17,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:19:17,889 INFO L225 Difference]: With dead ends: 4065 [2021-06-12 17:19:17,889 INFO L226 Difference]: Without dead ends: 0 [2021-06-12 17:19:17,890 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 60.9ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-12 17:19:17,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-12 17:19:17,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-12 17:19:17,890 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) [2021-06-12 17:19:17,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-12 17:19:17,890 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2021-06-12 17:19:17,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:19:17,890 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-12 17:19:17,890 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) [2021-06-12 17:19:17,890 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-12 17:19:17,891 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-12 17:19:17,891 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-12 17:19:17,892 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-12 17:19:17,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.06 05:19:17 BasicIcfg [2021-06-12 17:19:17,894 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-12 17:19:17,895 INFO L168 Benchmark]: Toolchain (without parser) took 18733.07 ms. Allocated memory was 174.1 MB in the beginning and 6.4 GB in the end (delta: 6.2 GB). Free memory was 138.2 MB in the beginning and 4.4 GB in the end (delta: -4.3 GB). Peak memory consumption was 1.9 GB. Max. memory is 8.0 GB. [2021-06-12 17:19:17,895 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 174.1 MB. Free memory was 156.2 MB in the beginning and 156.1 MB in the end (delta: 106.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-12 17:19:17,895 INFO L168 Benchmark]: CACSL2BoogieTranslator took 404.62 ms. Allocated memory is still 174.1 MB. Free memory was 138.0 MB in the beginning and 136.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 8.0 GB. [2021-06-12 17:19:17,898 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.38 ms. Allocated memory is still 174.1 MB. Free memory was 136.2 MB in the beginning and 134.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-12 17:19:17,899 INFO L168 Benchmark]: Boogie Preprocessor took 13.59 ms. Allocated memory is still 174.1 MB. Free memory was 134.1 MB in the beginning and 132.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-12 17:19:17,901 INFO L168 Benchmark]: RCFGBuilder took 395.61 ms. Allocated memory is still 174.1 MB. Free memory was 132.7 MB in the beginning and 107.5 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2021-06-12 17:19:17,901 INFO L168 Benchmark]: TraceAbstraction took 17889.84 ms. Allocated memory was 174.1 MB in the beginning and 6.4 GB in the end (delta: 6.2 GB). Free memory was 106.9 MB in the beginning and 4.4 GB in the end (delta: -4.3 GB). Peak memory consumption was 1.9 GB. Max. memory is 8.0 GB. [2021-06-12 17:19:17,906 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 174.1 MB. Free memory was 156.2 MB in the beginning and 156.1 MB in the end (delta: 106.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 404.62 ms. Allocated memory is still 174.1 MB. Free memory was 138.0 MB in the beginning and 136.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 24.38 ms. Allocated memory is still 174.1 MB. Free memory was 136.2 MB in the beginning and 134.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.59 ms. Allocated memory is still 174.1 MB. Free memory was 134.1 MB in the beginning and 132.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 395.61 ms. Allocated memory is still 174.1 MB. Free memory was 132.7 MB in the beginning and 107.5 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 17889.84 ms. Allocated memory was 174.1 MB in the beginning and 6.4 GB in the end (delta: 6.2 GB). Free memory was 106.9 MB in the beginning and 4.4 GB in the end (delta: -4.3 GB). Peak memory consumption was 1.9 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: 17811.9ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 389.9ms, AutomataDifference: 5573.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4034.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1577 SDtfs, 2663 SDslu, 5526 SDs, 0 SdLazy, 644 SolverSat, 135 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 616.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 159 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1476.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=51815occurred in iteration=0, 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: 6202.1ms AutomataMinimizationTime, 12 MinimizatonAttempts, 21664 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 26.7ms SsaConstructionTime, 189.2ms SatisfiabilityAnalysisTime, 1085.4ms 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...