/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 10:08:48,908 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 10:08:48,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 10:08:48,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-05 10:08:48,944 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-05 10:08:48,946 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-05 10:08:48,947 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-05 10:08:48,951 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-05 10:08:48,953 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-05 10:08:48,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-05 10:08:48,956 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-05 10:08:48,957 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-05 10:08:48,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 10:08:48,959 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 10:08:48,960 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 10:08:48,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 10:08:48,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 10:08:48,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 10:08:48,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 10:08:48,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 10:08:48,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 10:08:48,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 10:08:48,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 10:08:48,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 10:08:48,978 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 10:08:48,983 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 10:08:48,984 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 10:08:48,984 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 10:08:48,987 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2021-06-05 10:08:49,015 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 10:08:49,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 10:08:49,016 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 10:08:49,016 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 10:08:49,018 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 10:08:49,018 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 10:08:49,018 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 10:08:49,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 10:08:49,018 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 10:08:49,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 10:08:49,019 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 10:08:49,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 10:08:49,019 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 10:08:49,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 10:08:49,019 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 10:08:49,019 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 10:08:49,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 10:08:49,019 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 10:08:49,020 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 10:08:49,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 10:08:49,020 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 10:08:49,020 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 10:08:49,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 10:08:49,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 10:08:49,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 10:08:49,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 10:08:49,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 10:08:49,020 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 10:08:49,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 10:08:49,021 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 10:08:49,021 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 10:08:49,021 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 10:08:49,021 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 10:08:49,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 10:08:49,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 10:08:49,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 10:08:49,283 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 10:08:49,284 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 10:08:49,284 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i [2021-06-05 10:08:49,332 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01c56c3b6/f7ad6a326e4b4ca38de3fcc411f7ff4b/FLAG219273ef4 [2021-06-05 10:08:49,776 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 10:08:49,777 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i [2021-06-05 10:08:49,789 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01c56c3b6/f7ad6a326e4b4ca38de3fcc411f7ff4b/FLAG219273ef4 [2021-06-05 10:08:49,803 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01c56c3b6/f7ad6a326e4b4ca38de3fcc411f7ff4b [2021-06-05 10:08:49,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 10:08:49,807 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 10:08:49,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 10:08:49,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 10:08:49,812 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 10:08:49,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:08:49" (1/1) ... [2021-06-05 10:08:49,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fe0bda9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:49, skipping insertion in model container [2021-06-05 10:08:49,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:08:49" (1/1) ... [2021-06-05 10:08:49,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 10:08:49,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 10:08:50,007 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_tso.opt.i[949,962] [2021-06-05 10:08:50,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:08:50,160 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 10:08:50,167 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_tso.opt.i[949,962] [2021-06-05 10:08:50,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:08:50,242 INFO L208 MainTranslator]: Completed translation [2021-06-05 10:08:50,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:50 WrapperNode [2021-06-05 10:08:50,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 10:08:50,243 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 10:08:50,243 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 10:08:50,243 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 10:08:50,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:50" (1/1) ... [2021-06-05 10:08:50,256 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:50" (1/1) ... [2021-06-05 10:08:50,267 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 10:08:50,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 10:08:50,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 10:08:50,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 10:08:50,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:50" (1/1) ... [2021-06-05 10:08:50,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:50" (1/1) ... [2021-06-05 10:08:50,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:50" (1/1) ... [2021-06-05 10:08:50,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:50" (1/1) ... [2021-06-05 10:08:50,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:50" (1/1) ... [2021-06-05 10:08:50,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:50" (1/1) ... [2021-06-05 10:08:50,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:50" (1/1) ... [2021-06-05 10:08:50,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 10:08:50,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 10:08:50,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 10:08:50,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 10:08:50,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:50" (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 [2021-06-05 10:08:50,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 10:08:50,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 10:08:50,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 10:08:50,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 10:08:50,335 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 10:08:50,336 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 10:08:50,336 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 10:08:50,336 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 10:08:50,336 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 10:08:50,336 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 10:08:50,336 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-06-05 10:08:50,336 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-06-05 10:08:50,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 10:08:50,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 10:08:50,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 10:08:50,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 10:08:50,341 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 10:08:50,590 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 10:08:50,590 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 10:08:50,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:08:50 BoogieIcfgContainer [2021-06-05 10:08:50,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 10:08:50,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 10:08:50,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 10:08:50,595 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 10:08:50,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 10:08:49" (1/3) ... [2021-06-05 10:08:50,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff6b0ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:08:50, skipping insertion in model container [2021-06-05 10:08:50,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:08:50" (2/3) ... [2021-06-05 10:08:50,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff6b0ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:08:50, skipping insertion in model container [2021-06-05 10:08:50,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:08:50" (3/3) ... [2021-06-05 10:08:50,596 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.opt.i [2021-06-05 10:08:50,600 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 10:08:50,608 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 10:08:50,609 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 10:08:50,610 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 10:08:50,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,645 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,645 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,646 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,646 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,647 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,647 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,647 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,648 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,649 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,650 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,650 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,651 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,651 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,651 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,651 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,651 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,652 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,652 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,652 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,652 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,652 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,652 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,652 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,653 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,653 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,653 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,655 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,655 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,655 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,655 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,660 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,660 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,663 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,663 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,664 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,664 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,665 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,666 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,666 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,666 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:08:50,668 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 10:08:50,683 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-05 10:08:50,705 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:08:50,706 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:08:50,706 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:08:50,706 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:08:50,706 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:08:50,706 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:08:50,706 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:08:50,706 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 10:08:50,716 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 109 places, 98 transitions, 216 flow [2021-06-05 10:08:55,726 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) [2021-06-05 10:08:55,905 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) [2021-06-05 10:08:55,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 10:08:55,969 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:08:55,970 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:08:55,970 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:08:55,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:08:55,974 INFO L82 PathProgramCache]: Analyzing trace with hash -352002722, now seen corresponding path program 1 times [2021-06-05 10:08:55,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:08:55,980 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696065448] [2021-06-05 10:08:55,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:08:56,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:08:56,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:08:56,235 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:08:56,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696065448] [2021-06-05 10:08:56,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696065448] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:08:56,235 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:08:56,235 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:08:56,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707472451] [2021-06-05 10:08:56,238 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:08:56,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:08:56,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:08:56,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:08:56,315 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 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:57,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:08:57,649 INFO L93 Difference]: Finished difference Result 101003 states and 428395 transitions. [2021-06-05 10:08:57,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 10:08:57,651 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-06-05 10:08:57,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:08:57,869 INFO L225 Difference]: With dead ends: 101003 [2021-06-05 10:08:57,870 INFO L226 Difference]: Without dead ends: 31943 [2021-06-05 10:08:57,871 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 163.4ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:08:58,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31943 states. [2021-06-05 10:08:58,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31943 to 27623. [2021-06-05 10:08:58,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27623 states, 27622 states have (on average 4.142893345883716) internal successors, (114435), 27622 states have internal predecessors, (114435), 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) [2021-06-05 10:08:59,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27623 states to 27623 states and 114435 transitions. [2021-06-05 10:08:59,039 INFO L78 Accepts]: Start accepts. Automaton has 27623 states and 114435 transitions. Word has length 56 [2021-06-05 10:08:59,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:08:59,040 INFO L482 AbstractCegarLoop]: Abstraction has 27623 states and 114435 transitions. [2021-06-05 10:08:59,040 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:08:59,040 INFO L276 IsEmpty]: Start isEmpty. Operand 27623 states and 114435 transitions. [2021-06-05 10:08:59,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-05 10:08:59,086 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:08:59,087 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:08:59,087 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 10:08:59,087 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:08:59,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:08:59,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1559850451, now seen corresponding path program 1 times [2021-06-05 10:08:59,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:08:59,088 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422643231] [2021-06-05 10:08:59,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:08:59,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:08:59,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:08:59,245 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:08:59,246 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422643231] [2021-06-05 10:08:59,246 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422643231] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:08:59,246 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:08:59,246 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:08:59,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544900541] [2021-06-05 10:08:59,247 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:08:59,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:08:59,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:08:59,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:08:59,249 INFO L87 Difference]: Start difference. First operand 27623 states and 114435 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) [2021-06-05 10:08:59,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:08:59,831 INFO L93 Difference]: Finished difference Result 38687 states and 158623 transitions. [2021-06-05 10:08:59,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 10:08:59,831 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 [2021-06-05 10:08:59,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:08:59,941 INFO L225 Difference]: With dead ends: 38687 [2021-06-05 10:08:59,942 INFO L226 Difference]: Without dead ends: 30959 [2021-06-05 10:08:59,942 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 133.9ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:09:00,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30959 states. [2021-06-05 10:09:00,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30959 to 26543. [2021-06-05 10:09:00,765 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) [2021-06-05 10:09:00,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26543 states to 26543 states and 109431 transitions. [2021-06-05 10:09:00,847 INFO L78 Accepts]: Start accepts. Automaton has 26543 states and 109431 transitions. Word has length 58 [2021-06-05 10:09:00,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:09:00,848 INFO L482 AbstractCegarLoop]: Abstraction has 26543 states and 109431 transitions. [2021-06-05 10:09:00,848 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) [2021-06-05 10:09:00,848 INFO L276 IsEmpty]: Start isEmpty. Operand 26543 states and 109431 transitions. [2021-06-05 10:09:00,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-05 10:09:00,884 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:09:00,884 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:09:00,884 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 10:09:00,884 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:09:00,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:09:00,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1159192084, now seen corresponding path program 1 times [2021-06-05 10:09:00,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:09:00,885 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627652782] [2021-06-05 10:09:00,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:09:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:09:00,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:09:00,984 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:09:00,984 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627652782] [2021-06-05 10:09:00,984 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627652782] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:09:00,985 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:09:00,985 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:09:00,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232114666] [2021-06-05 10:09:00,985 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:09:00,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:09:00,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:09:00,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:09:00,987 INFO L87 Difference]: Start difference. First operand 26543 states and 109431 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:09:01,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:09:01,520 INFO L93 Difference]: Finished difference Result 34415 states and 140543 transitions. [2021-06-05 10:09:01,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 10:09:01,521 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-06-05 10:09:01,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:09:01,609 INFO L225 Difference]: With dead ends: 34415 [2021-06-05 10:09:01,609 INFO L226 Difference]: Without dead ends: 29519 [2021-06-05 10:09:01,609 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 160.1ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:09:01,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29519 states. [2021-06-05 10:09:02,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29519 to 25103. [2021-06-05 10:09:02,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25103 states, 25102 states have (on average 4.10799936260059) internal successors, (103119), 25102 states have internal predecessors, (103119), 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) [2021-06-05 10:09:02,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25103 states to 25103 states and 103119 transitions. [2021-06-05 10:09:02,383 INFO L78 Accepts]: Start accepts. Automaton has 25103 states and 103119 transitions. Word has length 60 [2021-06-05 10:09:02,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:09:02,384 INFO L482 AbstractCegarLoop]: Abstraction has 25103 states and 103119 transitions. [2021-06-05 10:09:02,384 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:09:02,385 INFO L276 IsEmpty]: Start isEmpty. Operand 25103 states and 103119 transitions. [2021-06-05 10:09:02,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 10:09:02,422 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:09:02,422 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:09:02,423 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 10:09:02,423 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:09:02,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:09:02,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1105894485, now seen corresponding path program 1 times [2021-06-05 10:09:02,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:09:02,423 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020202615] [2021-06-05 10:09:02,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:09:02,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:09:02,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:09:02,527 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:09:02,528 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020202615] [2021-06-05 10:09:02,528 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020202615] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:09:02,528 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:09:02,528 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:09:02,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369652332] [2021-06-05 10:09:02,531 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:09:02,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:09:02,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:09:02,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:09:02,532 INFO L87 Difference]: Start difference. First operand 25103 states and 103119 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 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) [2021-06-05 10:09:03,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:09:03,140 INFO L93 Difference]: Finished difference Result 36719 states and 149687 transitions. [2021-06-05 10:09:03,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:09:03,140 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 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 [2021-06-05 10:09:03,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:09:03,224 INFO L225 Difference]: With dead ends: 36719 [2021-06-05 10:09:03,225 INFO L226 Difference]: Without dead ends: 25775 [2021-06-05 10:09:03,225 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 115.9ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-06-05 10:09:03,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25775 states. [2021-06-05 10:09:03,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25775 to 20135. [2021-06-05 10:09:03,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20135 states, 20134 states have (on average 4.0717691467169965) internal successors, (81981), 20134 states have internal predecessors, (81981), 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) [2021-06-05 10:09:04,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20135 states to 20135 states and 81981 transitions. [2021-06-05 10:09:04,047 INFO L78 Accepts]: Start accepts. Automaton has 20135 states and 81981 transitions. Word has length 61 [2021-06-05 10:09:04,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:09:04,047 INFO L482 AbstractCegarLoop]: Abstraction has 20135 states and 81981 transitions. [2021-06-05 10:09:04,047 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 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) [2021-06-05 10:09:04,047 INFO L276 IsEmpty]: Start isEmpty. Operand 20135 states and 81981 transitions. [2021-06-05 10:09:04,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-06-05 10:09:04,129 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:09:04,129 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:09:04,129 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 10:09:04,129 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:09:04,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:09:04,130 INFO L82 PathProgramCache]: Analyzing trace with hash -204466803, now seen corresponding path program 1 times [2021-06-05 10:09:04,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:09:04,130 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259031580] [2021-06-05 10:09:04,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:09:04,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:09:04,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:09:04,221 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:09:04,221 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259031580] [2021-06-05 10:09:04,222 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259031580] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:09:04,222 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:09:04,222 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:09:04,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239372344] [2021-06-05 10:09:04,223 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:09:04,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:09:04,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:09:04,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:09:04,224 INFO L87 Difference]: Start difference. First operand 20135 states and 81981 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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) [2021-06-05 10:09:04,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:09:04,461 INFO L93 Difference]: Finished difference Result 34895 states and 141159 transitions. [2021-06-05 10:09:04,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 10:09:04,462 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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 62 [2021-06-05 10:09:04,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:09:04,514 INFO L225 Difference]: With dead ends: 34895 [2021-06-05 10:09:04,514 INFO L226 Difference]: Without dead ends: 20700 [2021-06-05 10:09:04,515 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 68.2ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-06-05 10:09:04,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20700 states. [2021-06-05 10:09:05,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20700 to 17820. [2021-06-05 10:09:05,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17820 states, 17819 states have (on average 4.047421291879455) internal successors, (72121), 17819 states have internal predecessors, (72121), 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) [2021-06-05 10:09:05,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17820 states to 17820 states and 72121 transitions. [2021-06-05 10:09:05,109 INFO L78 Accepts]: Start accepts. Automaton has 17820 states and 72121 transitions. Word has length 62 [2021-06-05 10:09:05,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:09:05,109 INFO L482 AbstractCegarLoop]: Abstraction has 17820 states and 72121 transitions. [2021-06-05 10:09:05,109 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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) [2021-06-05 10:09:05,109 INFO L276 IsEmpty]: Start isEmpty. Operand 17820 states and 72121 transitions. [2021-06-05 10:09:05,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-06-05 10:09:05,133 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:09:05,134 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:09:05,134 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 10:09:05,134 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:09:05,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:09:05,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1605957499, now seen corresponding path program 2 times [2021-06-05 10:09:05,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:09:05,134 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947788532] [2021-06-05 10:09:05,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:09:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:09:05,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:09:05,232 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:09:05,232 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947788532] [2021-06-05 10:09:05,232 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947788532] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:09:05,232 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:09:05,232 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:09:05,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203925586] [2021-06-05 10:09:05,234 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:09:05,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:09:05,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:09:05,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:09:05,235 INFO L87 Difference]: Start difference. First operand 17820 states and 72121 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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) [2021-06-05 10:09:05,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:09:05,442 INFO L93 Difference]: Finished difference Result 26260 states and 105035 transitions. [2021-06-05 10:09:05,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:09:05,443 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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 62 [2021-06-05 10:09:05,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:09:05,476 INFO L225 Difference]: With dead ends: 26260 [2021-06-05 10:09:05,476 INFO L226 Difference]: Without dead ends: 13000 [2021-06-05 10:09:05,477 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 75.9ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-05 10:09:05,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13000 states. [2021-06-05 10:09:05,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13000 to 13000. [2021-06-05 10:09:05,715 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) [2021-06-05 10:09:05,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13000 states to 13000 states and 51409 transitions. [2021-06-05 10:09:05,751 INFO L78 Accepts]: Start accepts. Automaton has 13000 states and 51409 transitions. Word has length 62 [2021-06-05 10:09:05,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:09:05,752 INFO L482 AbstractCegarLoop]: Abstraction has 13000 states and 51409 transitions. [2021-06-05 10:09:05,752 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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) [2021-06-05 10:09:05,752 INFO L276 IsEmpty]: Start isEmpty. Operand 13000 states and 51409 transitions. [2021-06-05 10:09:05,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-06-05 10:09:05,931 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:09:05,931 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:09:05,931 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 10:09:05,931 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:09:05,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:09:05,932 INFO L82 PathProgramCache]: Analyzing trace with hash 262666992, now seen corresponding path program 1 times [2021-06-05 10:09:05,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:09:05,932 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850208063] [2021-06-05 10:09:05,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:09:05,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:09:06,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:09:06,041 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:09:06,041 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850208063] [2021-06-05 10:09:06,041 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850208063] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:09:06,041 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:09:06,041 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:09:06,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69227652] [2021-06-05 10:09:06,041 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:09:06,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:09:06,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:09:06,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:09:06,042 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) [2021-06-05 10:09:06,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:09:06,177 INFO L93 Difference]: Finished difference Result 17372 states and 68227 transitions. [2021-06-05 10:09:06,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:09:06,177 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 [2021-06-05 10:09:06,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:09:06,207 INFO L225 Difference]: With dead ends: 17372 [2021-06-05 10:09:06,207 INFO L226 Difference]: Without dead ends: 12636 [2021-06-05 10:09:06,207 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 53.6ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:09:06,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12636 states. [2021-06-05 10:09:06,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12636 to 12636. [2021-06-05 10:09:06,419 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) [2021-06-05 10:09:06,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12636 states to 12636 states and 49759 transitions. [2021-06-05 10:09:06,454 INFO L78 Accepts]: Start accepts. Automaton has 12636 states and 49759 transitions. Word has length 64 [2021-06-05 10:09:06,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:09:06,454 INFO L482 AbstractCegarLoop]: Abstraction has 12636 states and 49759 transitions. [2021-06-05 10:09:06,454 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) [2021-06-05 10:09:06,455 INFO L276 IsEmpty]: Start isEmpty. Operand 12636 states and 49759 transitions. [2021-06-05 10:09:06,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-06-05 10:09:06,472 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:09:06,472 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:09:06,472 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 10:09:06,472 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:09:06,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:09:06,473 INFO L82 PathProgramCache]: Analyzing trace with hash -680334294, now seen corresponding path program 1 times [2021-06-05 10:09:06,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:09:06,473 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237055857] [2021-06-05 10:09:06,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:09:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:09:06,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:09:06,523 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:09:06,523 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237055857] [2021-06-05 10:09:06,523 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237055857] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:09:06,524 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:09:06,524 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:09:06,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299225494] [2021-06-05 10:09:06,524 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:09:06,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:09:06,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:09:06,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:09:06,525 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) [2021-06-05 10:09:06,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:09:06,671 INFO L93 Difference]: Finished difference Result 15534 states and 60340 transitions. [2021-06-05 10:09:06,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:09:06,671 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 [2021-06-05 10:09:06,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:09:06,696 INFO L225 Difference]: With dead ends: 15534 [2021-06-05 10:09:06,696 INFO L226 Difference]: Without dead ends: 11070 [2021-06-05 10:09:06,697 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 62.0ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-05 10:09:06,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11070 states. [2021-06-05 10:09:07,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11070 to 11070. [2021-06-05 10:09:07,071 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) [2021-06-05 10:09:07,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11070 states to 11070 states and 42826 transitions. [2021-06-05 10:09:07,107 INFO L78 Accepts]: Start accepts. Automaton has 11070 states and 42826 transitions. Word has length 65 [2021-06-05 10:09:07,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:09:07,108 INFO L482 AbstractCegarLoop]: Abstraction has 11070 states and 42826 transitions. [2021-06-05 10:09:07,108 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) [2021-06-05 10:09:07,108 INFO L276 IsEmpty]: Start isEmpty. Operand 11070 states and 42826 transitions. [2021-06-05 10:09:07,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-06-05 10:09:07,125 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:09:07,125 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:09:07,125 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 10:09:07,126 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:09:07,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:09:07,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1718539969, now seen corresponding path program 1 times [2021-06-05 10:09:07,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:09:07,126 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959036244] [2021-06-05 10:09:07,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:09:07,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:09:07,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:09:07,184 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:09:07,184 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959036244] [2021-06-05 10:09:07,184 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959036244] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:09:07,184 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:09:07,184 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:09:07,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995263688] [2021-06-05 10:09:07,185 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:09:07,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:09:07,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:09:07,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:09:07,185 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) [2021-06-05 10:09:07,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:09:07,349 INFO L93 Difference]: Finished difference Result 11547 states and 43804 transitions. [2021-06-05 10:09:07,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 10:09:07,349 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 [2021-06-05 10:09:07,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:09:07,368 INFO L225 Difference]: With dead ends: 11547 [2021-06-05 10:09:07,368 INFO L226 Difference]: Without dead ends: 8163 [2021-06-05 10:09:07,369 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 81.8ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:09:07,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8163 states. [2021-06-05 10:09:07,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8163 to 8163. [2021-06-05 10:09:07,513 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) [2021-06-05 10:09:07,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8163 states to 8163 states and 30589 transitions. [2021-06-05 10:09:07,536 INFO L78 Accepts]: Start accepts. Automaton has 8163 states and 30589 transitions. Word has length 66 [2021-06-05 10:09:07,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:09:07,536 INFO L482 AbstractCegarLoop]: Abstraction has 8163 states and 30589 transitions. [2021-06-05 10:09:07,536 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) [2021-06-05 10:09:07,536 INFO L276 IsEmpty]: Start isEmpty. Operand 8163 states and 30589 transitions. [2021-06-05 10:09:07,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-06-05 10:09:07,548 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:09:07,548 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:09:07,548 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 10:09:07,548 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:09:07,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:09:07,549 INFO L82 PathProgramCache]: Analyzing trace with hash 492191662, now seen corresponding path program 1 times [2021-06-05 10:09:07,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:09:07,549 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021205839] [2021-06-05 10:09:07,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:09:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:09:07,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:09:07,680 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:09:07,680 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021205839] [2021-06-05 10:09:07,680 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021205839] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:09:07,680 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:09:07,680 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:09:07,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881920361] [2021-06-05 10:09:07,680 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:09:07,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:09:07,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:09:07,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:09:07,681 INFO L87 Difference]: Start difference. First operand 8163 states and 30589 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 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) [2021-06-05 10:09:07,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:09:07,833 INFO L93 Difference]: Finished difference Result 11715 states and 44012 transitions. [2021-06-05 10:09:07,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 10:09:07,849 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 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 [2021-06-05 10:09:07,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:09:07,892 INFO L225 Difference]: With dead ends: 11715 [2021-06-05 10:09:07,892 INFO L226 Difference]: Without dead ends: 7501 [2021-06-05 10:09:07,893 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 116.3ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:09:07,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7501 states. [2021-06-05 10:09:08,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7501 to 6853. [2021-06-05 10:09:08,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6853 states, 6852 states have (on average 3.7286923525977818) internal successors, (25549), 6852 states have internal predecessors, (25549), 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) [2021-06-05 10:09:08,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6853 states to 6853 states and 25549 transitions. [2021-06-05 10:09:08,155 INFO L78 Accepts]: Start accepts. Automaton has 6853 states and 25549 transitions. Word has length 68 [2021-06-05 10:09:08,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:09:08,155 INFO L482 AbstractCegarLoop]: Abstraction has 6853 states and 25549 transitions. [2021-06-05 10:09:08,155 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 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) [2021-06-05 10:09:08,156 INFO L276 IsEmpty]: Start isEmpty. Operand 6853 states and 25549 transitions. [2021-06-05 10:09:08,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-06-05 10:09:08,165 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:09:08,165 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:09:08,165 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 10:09:08,165 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:09:08,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:09:08,166 INFO L82 PathProgramCache]: Analyzing trace with hash 132401632, now seen corresponding path program 2 times [2021-06-05 10:09:08,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:09:08,166 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228656709] [2021-06-05 10:09:08,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:09:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:09:08,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:09:08,254 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:09:08,254 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228656709] [2021-06-05 10:09:08,254 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228656709] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:09:08,254 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:09:08,254 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 10:09:08,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285426906] [2021-06-05 10:09:08,254 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 10:09:08,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:09:08,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 10:09:08,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-05 10:09:08,255 INFO L87 Difference]: Start difference. First operand 6853 states and 25549 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) [2021-06-05 10:09:08,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:09:08,413 INFO L93 Difference]: Finished difference Result 5935 states and 21715 transitions. [2021-06-05 10:09:08,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-05 10:09:08,413 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 [2021-06-05 10:09:08,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:09:08,420 INFO L225 Difference]: With dead ends: 5935 [2021-06-05 10:09:08,420 INFO L226 Difference]: Without dead ends: 3187 [2021-06-05 10:09:08,420 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 93.8ms TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-06-05 10:09:08,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3187 states. [2021-06-05 10:09:08,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3187 to 3187. [2021-06-05 10:09:08,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3187 states, 3186 states have (on average 3.5505335844318897) internal successors, (11312), 3186 states have internal predecessors, (11312), 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) [2021-06-05 10:09:08,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3187 states to 3187 states and 11312 transitions. [2021-06-05 10:09:08,473 INFO L78 Accepts]: Start accepts. Automaton has 3187 states and 11312 transitions. Word has length 68 [2021-06-05 10:09:08,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:09:08,473 INFO L482 AbstractCegarLoop]: Abstraction has 3187 states and 11312 transitions. [2021-06-05 10:09:08,474 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) [2021-06-05 10:09:08,474 INFO L276 IsEmpty]: Start isEmpty. Operand 3187 states and 11312 transitions. [2021-06-05 10:09:08,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-06-05 10:09:08,478 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:09:08,478 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:09:08,478 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 10:09:08,478 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:09:08,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:09:08,479 INFO L82 PathProgramCache]: Analyzing trace with hash -599850687, now seen corresponding path program 1 times [2021-06-05 10:09:08,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:09:08,480 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561812572] [2021-06-05 10:09:08,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:09:08,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:09:08,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:09:08,537 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:09:08,537 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561812572] [2021-06-05 10:09:08,537 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561812572] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:09:08,537 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:09:08,537 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:09:08,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860296410] [2021-06-05 10:09:08,537 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:09:08,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:09:08,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:09:08,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:09:08,538 INFO L87 Difference]: Start difference. First operand 3187 states and 11312 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) [2021-06-05 10:09:08,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:09:08,610 INFO L93 Difference]: Finished difference Result 3025 states and 10718 transitions. [2021-06-05 10:09:08,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 10:09:08,610 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 [2021-06-05 10:09:08,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:09:08,611 INFO L225 Difference]: With dead ends: 3025 [2021-06-05 10:09:08,611 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 10:09:08,611 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 72.1ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:09:08,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 10:09:08,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 10:09:08,611 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) [2021-06-05 10:09:08,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 10:09:08,611 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2021-06-05 10:09:08,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:09:08,611 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 10:09:08,611 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) [2021-06-05 10:09:08,612 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 10:09:08,612 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 10:09:08,612 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 10:09:08,613 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 10:09:08,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 10:09:08 BasicIcfg [2021-06-05 10:09:08,615 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 10:09:08,615 INFO L168 Benchmark]: Toolchain (without parser) took 18808.54 ms. Allocated memory was 398.5 MB in the beginning and 11.3 GB in the end (delta: 10.9 GB). Free memory was 360.5 MB in the beginning and 9.7 GB in the end (delta: -9.4 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.0 GB. [2021-06-05 10:09:08,616 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 398.5 MB. Free memory was 378.8 MB in the beginning and 378.7 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 10:09:08,616 INFO L168 Benchmark]: CACSL2BoogieTranslator took 433.09 ms. Allocated memory is still 398.5 MB. Free memory was 360.4 MB in the beginning and 360.3 MB in the end (delta: 30.1 kB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. [2021-06-05 10:09:08,620 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.75 ms. Allocated memory is still 398.5 MB. Free memory was 360.3 MB in the beginning and 358.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:09:08,621 INFO L168 Benchmark]: Boogie Preprocessor took 15.06 ms. Allocated memory is still 398.5 MB. Free memory was 358.2 MB in the beginning and 357.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:09:08,622 INFO L168 Benchmark]: RCFGBuilder took 308.10 ms. Allocated memory is still 398.5 MB. Free memory was 357.2 MB in the beginning and 328.9 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-06-05 10:09:08,623 INFO L168 Benchmark]: TraceAbstraction took 18022.22 ms. Allocated memory was 398.5 MB in the beginning and 11.3 GB in the end (delta: 10.9 GB). Free memory was 328.9 MB in the beginning and 9.7 GB in the end (delta: -9.4 GB). Peak memory consumption was 1.5 GB. Max. memory is 16.0 GB. [2021-06-05 10:09:08,626 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 398.5 MB. Free memory was 378.8 MB in the beginning and 378.7 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 433.09 ms. Allocated memory is still 398.5 MB. Free memory was 360.4 MB in the beginning and 360.3 MB in the end (delta: 30.1 kB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.75 ms. Allocated memory is still 398.5 MB. Free memory was 360.3 MB in the beginning and 358.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.06 ms. Allocated memory is still 398.5 MB. Free memory was 358.2 MB in the beginning and 357.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 308.10 ms. Allocated memory is still 398.5 MB. Free memory was 357.2 MB in the beginning and 328.9 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 18022.22 ms. Allocated memory was 398.5 MB in the beginning and 11.3 GB in the end (delta: 10.9 GB). Free memory was 328.9 MB in the beginning and 9.7 GB in the end (delta: -9.4 GB). Peak memory consumption was 1.5 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 127 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17908.4ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 707.0ms, AutomataDifference: 5151.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5020.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1550 SDtfs, 2861 SDslu, 5558 SDs, 0 SdLazy, 602 SolverSat, 141 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 376.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 166 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1197.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=51815occurred in iteration=0, InterpolantAutomatonStates: 125, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 5668.4ms AutomataMinimizationTime, 12 MinimizatonAttempts, 22320 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 28.3ms SsaConstructionTime, 157.6ms SatisfiabilityAnalysisTime, 993.1ms InterpolantComputationTime, 760 NumberOfCodeBlocks, 760 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 748 ConstructedInterpolants, 0 QuantifiedInterpolants, 3408 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...