/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/safe008_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 10:05:31,960 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 10:05:31,962 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 10:05:31,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 10:05:32,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 10:05:32,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 10:05:32,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 10:05:32,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 10:05:32,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 10:05:32,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 10:05:32,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 10:05:32,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 10:05:32,021 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 10:05:32,022 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 10:05:32,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 10:05:32,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 10:05:32,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 10:05:32,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 10:05:32,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 10:05:32,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 10:05:32,038 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 10:05:32,066 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 10:05:32,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 10:05:32,067 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 10:05:32,067 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 10:05:32,068 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 10:05:32,069 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 10:05:32,069 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 10:05:32,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 10:05:32,069 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 10:05:32,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 10:05:32,070 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 10:05:32,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 10:05:32,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 10:05:32,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 10:05:32,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 10:05:32,070 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 10:05:32,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 10:05:32,070 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 10:05:32,071 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 10:05:32,071 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 10:05:32,071 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 10:05:32,071 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 10:05:32,071 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 10:05:32,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 10:05:32,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 10:05:32,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 10:05:32,071 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 10:05:32,072 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 10:05:32,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 10:05:32,072 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 10:05:32,072 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 10:05:32,072 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 10:05:32,072 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 10:05:32,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 10:05:32,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 10:05:32,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 10:05:32,344 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 10:05:32,344 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 10:05:32,345 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.opt.i [2021-06-05 10:05:32,392 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6ecd40dd/3b5b310f3318499aacbabfa655717b44/FLAGeb08ae6a0 [2021-06-05 10:05:32,768 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 10:05:32,768 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_tso.opt.i [2021-06-05 10:05:32,781 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6ecd40dd/3b5b310f3318499aacbabfa655717b44/FLAGeb08ae6a0 [2021-06-05 10:05:33,143 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6ecd40dd/3b5b310f3318499aacbabfa655717b44 [2021-06-05 10:05:33,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 10:05:33,146 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 10:05:33,163 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 10:05:33,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 10:05:33,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 10:05:33,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:05:33" (1/1) ... [2021-06-05 10:05:33,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@470a5488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:05:33, skipping insertion in model container [2021-06-05 10:05:33,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:05:33" (1/1) ... [2021-06-05 10:05:33,174 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 10:05:33,228 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 10:05:33,330 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/safe008_tso.opt.i[949,962] [2021-06-05 10:05:33,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:05:33,494 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 10:05:33,515 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/safe008_tso.opt.i[949,962] [2021-06-05 10:05:33,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:05:33,601 INFO L208 MainTranslator]: Completed translation [2021-06-05 10:05:33,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:05:33 WrapperNode [2021-06-05 10:05:33,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 10:05:33,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 10:05:33,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 10:05:33,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 10:05:33,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:05:33" (1/1) ... [2021-06-05 10:05:33,632 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:05:33" (1/1) ... [2021-06-05 10:05:33,650 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 10:05:33,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 10:05:33,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 10:05:33,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 10:05:33,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:05:33" (1/1) ... [2021-06-05 10:05:33,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:05:33" (1/1) ... [2021-06-05 10:05:33,665 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:05:33" (1/1) ... [2021-06-05 10:05:33,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:05:33" (1/1) ... [2021-06-05 10:05:33,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:05:33" (1/1) ... [2021-06-05 10:05:33,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:05:33" (1/1) ... [2021-06-05 10:05:33,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:05:33" (1/1) ... [2021-06-05 10:05:33,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 10:05:33,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 10:05:33,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 10:05:33,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 10:05:33,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:05:33" (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 10:05:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 10:05:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 10:05:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 10:05:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 10:05:33,749 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 10:05:33,749 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 10:05:33,750 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 10:05:33,750 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 10:05:33,750 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 10:05:33,750 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 10:05:33,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 10:05:33,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 10:05:33,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 10:05:33,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 10:05:33,751 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 10:05:34,072 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 10:05:34,072 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 10:05:34,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:05:34 BoogieIcfgContainer [2021-06-05 10:05:34,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 10:05:34,074 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 10:05:34,074 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 10:05:34,076 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 10:05:34,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 10:05:33" (1/3) ... [2021-06-05 10:05:34,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ea40d77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:05:34, skipping insertion in model container [2021-06-05 10:05:34,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:05:33" (2/3) ... [2021-06-05 10:05:34,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ea40d77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:05:34, skipping insertion in model container [2021-06-05 10:05:34,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:05:34" (3/3) ... [2021-06-05 10:05:34,078 INFO L111 eAbstractionObserver]: Analyzing ICFG safe008_tso.opt.i [2021-06-05 10:05:34,082 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 10:05:34,082 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 10:05:34,082 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 10:05:34,083 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 10:05:34,100 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,101 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,101 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,101 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,101 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,101 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,101 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,101 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,102 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,102 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,102 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,102 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,103 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,103 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,103 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,103 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,103 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,103 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,103 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,103 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,104 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,104 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,104 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,104 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,104 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,104 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,104 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,104 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,105 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,105 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,105 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,105 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,106 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,107 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,107 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,107 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,110 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,110 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,110 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,110 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,112 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,112 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,112 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,112 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:05:34,113 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 10:05:34,128 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 10:05:34,140 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:05:34,141 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:05:34,141 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:05:34,141 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:05:34,141 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:05:34,141 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:05:34,141 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:05:34,141 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 10:05:34,152 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-06-05 10:05:34,628 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:05:34,664 INFO L276 IsEmpty]: Start isEmpty. Operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:05:34,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-06-05 10:05:34,707 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:05:34,708 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:05:34,708 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:05:34,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:05:34,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1432389661, now seen corresponding path program 1 times [2021-06-05 10:05:34,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:05:34,720 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171700665] [2021-06-05 10:05:34,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:05:34,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:05:35,094 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 10:05:35,095 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:05:35,095 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171700665] [2021-06-05 10:05:35,095 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171700665] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:05:35,096 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:05:35,096 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:05:35,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547521067] [2021-06-05 10:05:35,099 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:05:35,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:05:35,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:05:35,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:05:35,154 INFO L87 Difference]: Start difference. First operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:05:35,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:05:35,577 INFO L93 Difference]: Finished difference Result 17683 states and 60730 transitions. [2021-06-05 10:05:35,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 10:05:35,579 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-06-05 10:05:35,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:05:35,623 INFO L225 Difference]: With dead ends: 17683 [2021-06-05 10:05:35,623 INFO L226 Difference]: Without dead ends: 5788 [2021-06-05 10:05:35,624 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 199.7ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:05:35,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5788 states. [2021-06-05 10:05:35,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5788 to 4948. [2021-06-05 10:05:35,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4948 states, 4947 states have (on average 3.3480897513644634) internal successors, (16563), 4947 states have internal predecessors, (16563), 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 10:05:35,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4948 states to 4948 states and 16563 transitions. [2021-06-05 10:05:35,957 INFO L78 Accepts]: Start accepts. Automaton has 4948 states and 16563 transitions. Word has length 49 [2021-06-05 10:05:35,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:05:35,960 INFO L482 AbstractCegarLoop]: Abstraction has 4948 states and 16563 transitions. [2021-06-05 10:05:35,961 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:05:35,961 INFO L276 IsEmpty]: Start isEmpty. Operand 4948 states and 16563 transitions. [2021-06-05 10:05:35,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-05 10:05:35,976 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:05:35,977 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:05:35,977 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 10:05:35,977 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:05:35,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:05:35,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1311501732, now seen corresponding path program 1 times [2021-06-05 10:05:35,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:05:35,979 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358322811] [2021-06-05 10:05:35,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:05:36,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:05:36,093 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 10:05:36,094 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:05:36,094 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358322811] [2021-06-05 10:05:36,094 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358322811] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:05:36,094 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:05:36,094 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:05:36,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529947613] [2021-06-05 10:05:36,095 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:05:36,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:05:36,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:05:36,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:05:36,096 INFO L87 Difference]: Start difference. First operand 4948 states and 16563 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:05:36,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:05:36,264 INFO L93 Difference]: Finished difference Result 5508 states and 18296 transitions. [2021-06-05 10:05:36,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:05:36,265 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-06-05 10:05:36,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:05:36,286 INFO L225 Difference]: With dead ends: 5508 [2021-06-05 10:05:36,286 INFO L226 Difference]: Without dead ends: 4528 [2021-06-05 10:05:36,287 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 84.7ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:05:36,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4528 states. [2021-06-05 10:05:36,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4528 to 4528. [2021-06-05 10:05:36,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4528 states, 4527 states have (on average 3.3194168323392974) internal successors, (15027), 4527 states have internal predecessors, (15027), 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 10:05:36,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4528 states to 4528 states and 15027 transitions. [2021-06-05 10:05:36,408 INFO L78 Accepts]: Start accepts. Automaton has 4528 states and 15027 transitions. Word has length 51 [2021-06-05 10:05:36,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:05:36,415 INFO L482 AbstractCegarLoop]: Abstraction has 4528 states and 15027 transitions. [2021-06-05 10:05:36,416 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:05:36,416 INFO L276 IsEmpty]: Start isEmpty. Operand 4528 states and 15027 transitions. [2021-06-05 10:05:36,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-05 10:05:36,427 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:05:36,427 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:05:36,427 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 10:05:36,427 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:05:36,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:05:36,433 INFO L82 PathProgramCache]: Analyzing trace with hash 742880451, now seen corresponding path program 1 times [2021-06-05 10:05:36,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:05:36,434 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608428116] [2021-06-05 10:05:36,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:05:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:05:36,559 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 10:05:36,560 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:05:36,560 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608428116] [2021-06-05 10:05:36,560 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608428116] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:05:36,560 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:05:36,560 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:05:36,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299556847] [2021-06-05 10:05:36,561 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:05:36,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:05:36,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:05:36,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:05:36,561 INFO L87 Difference]: Start difference. First operand 4528 states and 15027 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:05:36,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:05:36,688 INFO L93 Difference]: Finished difference Result 6138 states and 20163 transitions. [2021-06-05 10:05:36,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:05:36,689 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-06-05 10:05:36,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:05:36,702 INFO L225 Difference]: With dead ends: 6138 [2021-06-05 10:05:36,702 INFO L226 Difference]: Without dead ends: 3158 [2021-06-05 10:05:36,703 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 103.0ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-05 10:05:36,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3158 states. [2021-06-05 10:05:36,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3158 to 3158. [2021-06-05 10:05:36,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3158 states, 3157 states have (on average 3.1789673740893254) internal successors, (10036), 3157 states have internal predecessors, (10036), 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 10:05:36,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3158 states to 3158 states and 10036 transitions. [2021-06-05 10:05:36,767 INFO L78 Accepts]: Start accepts. Automaton has 3158 states and 10036 transitions. Word has length 53 [2021-06-05 10:05:36,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:05:36,768 INFO L482 AbstractCegarLoop]: Abstraction has 3158 states and 10036 transitions. [2021-06-05 10:05:36,768 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:05:36,768 INFO L276 IsEmpty]: Start isEmpty. Operand 3158 states and 10036 transitions. [2021-06-05 10:05:36,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-05 10:05:36,817 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:05:36,817 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:05:36,817 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 10:05:36,817 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:05:36,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:05:36,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1490806147, now seen corresponding path program 1 times [2021-06-05 10:05:36,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:05:36,820 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096073831] [2021-06-05 10:05:36,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:05:36,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:05:36,919 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 10:05:36,919 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:05:36,920 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096073831] [2021-06-05 10:05:36,920 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096073831] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:05:36,920 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:05:36,921 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:05:36,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106171726] [2021-06-05 10:05:36,922 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:05:36,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:05:36,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:05:36,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:05:36,926 INFO L87 Difference]: Start difference. First operand 3158 states and 10036 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:05:37,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:05:37,038 INFO L93 Difference]: Finished difference Result 3478 states and 10992 transitions. [2021-06-05 10:05:37,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:05:37,039 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-06-05 10:05:37,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:05:37,059 INFO L225 Difference]: With dead ends: 3478 [2021-06-05 10:05:37,060 INFO L226 Difference]: Without dead ends: 2918 [2021-06-05 10:05:37,060 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 98.9ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:05:37,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2918 states. [2021-06-05 10:05:37,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2918 to 2918. [2021-06-05 10:05:37,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2918 states, 2917 states have (on average 3.1594103531025026) internal successors, (9216), 2917 states have internal predecessors, (9216), 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 10:05:37,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2918 states to 2918 states and 9216 transitions. [2021-06-05 10:05:37,125 INFO L78 Accepts]: Start accepts. Automaton has 2918 states and 9216 transitions. Word has length 54 [2021-06-05 10:05:37,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:05:37,126 INFO L482 AbstractCegarLoop]: Abstraction has 2918 states and 9216 transitions. [2021-06-05 10:05:37,127 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:05:37,127 INFO L276 IsEmpty]: Start isEmpty. Operand 2918 states and 9216 transitions. [2021-06-05 10:05:37,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 10:05:37,133 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:05:37,134 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] [2021-06-05 10:05:37,136 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 10:05:37,137 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:05:37,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:05:37,139 INFO L82 PathProgramCache]: Analyzing trace with hash -528571904, now seen corresponding path program 1 times [2021-06-05 10:05:37,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:05:37,140 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934064332] [2021-06-05 10:05:37,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:05:37,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:05:37,259 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 10:05:37,259 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:05:37,259 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934064332] [2021-06-05 10:05:37,260 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934064332] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:05:37,260 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:05:37,260 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:05:37,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192965777] [2021-06-05 10:05:37,261 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:05:37,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:05:37,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:05:37,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:05:37,261 INFO L87 Difference]: Start difference. First operand 2918 states and 9216 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:05:37,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:05:37,381 INFO L93 Difference]: Finished difference Result 3786 states and 11791 transitions. [2021-06-05 10:05:37,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:05:37,381 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 10:05:37,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:05:37,384 INFO L225 Difference]: With dead ends: 3786 [2021-06-05 10:05:37,384 INFO L226 Difference]: Without dead ends: 1461 [2021-06-05 10:05:37,385 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 108.5ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-05 10:05:37,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2021-06-05 10:05:37,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1461. [2021-06-05 10:05:37,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 1460 states have (on average 2.9404109589041094) internal successors, (4293), 1460 states have internal predecessors, (4293), 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 10:05:37,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 4293 transitions. [2021-06-05 10:05:37,407 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 4293 transitions. Word has length 56 [2021-06-05 10:05:37,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:05:37,407 INFO L482 AbstractCegarLoop]: Abstraction has 1461 states and 4293 transitions. [2021-06-05 10:05:37,407 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 10:05:37,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 4293 transitions. [2021-06-05 10:05:37,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-05 10:05:37,409 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:05:37,409 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:05:37,409 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 10:05:37,409 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:05:37,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:05:37,410 INFO L82 PathProgramCache]: Analyzing trace with hash -4942770, now seen corresponding path program 1 times [2021-06-05 10:05:37,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:05:37,410 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804367553] [2021-06-05 10:05:37,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:05:37,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:05:37,461 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 10:05:37,462 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:05:37,462 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804367553] [2021-06-05 10:05:37,462 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804367553] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:05:37,462 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:05:37,462 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:05:37,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277094376] [2021-06-05 10:05:37,462 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:05:37,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:05:37,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:05:37,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:05:37,463 INFO L87 Difference]: Start difference. First operand 1461 states and 4293 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:05:37,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:05:37,540 INFO L93 Difference]: Finished difference Result 1662 states and 4844 transitions. [2021-06-05 10:05:37,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:05:37,540 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-06-05 10:05:37,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:05:37,543 INFO L225 Difference]: With dead ends: 1662 [2021-06-05 10:05:37,543 INFO L226 Difference]: Without dead ends: 1326 [2021-06-05 10:05:37,543 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 67.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:05:37,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2021-06-05 10:05:37,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1326. [2021-06-05 10:05:37,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 1325 states have (on average 2.900377358490566) internal successors, (3843), 1325 states have internal predecessors, (3843), 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 10:05:37,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 3843 transitions. [2021-06-05 10:05:37,562 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 3843 transitions. Word has length 57 [2021-06-05 10:05:37,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:05:37,562 INFO L482 AbstractCegarLoop]: Abstraction has 1326 states and 3843 transitions. [2021-06-05 10:05:37,562 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:05:37,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 3843 transitions. [2021-06-05 10:05:37,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-05 10:05:37,564 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:05:37,564 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:05:37,564 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 10:05:37,564 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:05:37,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:05:37,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1433061019, now seen corresponding path program 1 times [2021-06-05 10:05:37,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:05:37,566 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71817333] [2021-06-05 10:05:37,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:05:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:05:37,654 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 10:05:37,655 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:05:37,657 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71817333] [2021-06-05 10:05:37,657 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71817333] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:05:37,657 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:05:37,657 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:05:37,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699948304] [2021-06-05 10:05:37,657 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:05:37,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:05:37,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:05:37,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:05:37,658 INFO L87 Difference]: Start difference. First operand 1326 states and 3843 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 10:05:37,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:05:37,746 INFO L93 Difference]: Finished difference Result 1218 states and 3423 transitions. [2021-06-05 10:05:37,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:05:37,747 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 10:05:37,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:05:37,748 INFO L225 Difference]: With dead ends: 1218 [2021-06-05 10:05:37,748 INFO L226 Difference]: Without dead ends: 966 [2021-06-05 10:05:37,749 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 74.9ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-05 10:05:37,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2021-06-05 10:05:37,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 966. [2021-06-05 10:05:37,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 965 states have (on average 2.75440414507772) internal successors, (2658), 965 states have internal predecessors, (2658), 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 10:05:37,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 2658 transitions. [2021-06-05 10:05:37,766 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 2658 transitions. Word has length 58 [2021-06-05 10:05:37,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:05:37,766 INFO L482 AbstractCegarLoop]: Abstraction has 966 states and 2658 transitions. [2021-06-05 10:05:37,766 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 10:05:37,767 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 2658 transitions. [2021-06-05 10:05:37,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-06-05 10:05:37,768 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:05:37,768 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:05:37,768 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 10:05:37,768 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:05:37,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:05:37,769 INFO L82 PathProgramCache]: Analyzing trace with hash -385159466, now seen corresponding path program 1 times [2021-06-05 10:05:37,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:05:37,769 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758076279] [2021-06-05 10:05:37,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:05:37,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:05:37,875 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 10:05:37,875 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:05:37,875 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758076279] [2021-06-05 10:05:37,876 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758076279] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:05:37,876 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:05:37,876 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:05:37,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153479385] [2021-06-05 10:05:37,878 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:05:37,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:05:37,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:05:37,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:05:37,878 INFO L87 Difference]: Start difference. First operand 966 states and 2658 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:05:37,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:05:37,938 INFO L93 Difference]: Finished difference Result 669 states and 1767 transitions. [2021-06-05 10:05:37,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 10:05:37,938 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-06-05 10:05:37,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:05:37,938 INFO L225 Difference]: With dead ends: 669 [2021-06-05 10:05:37,938 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 10:05:37,938 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 86.3ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-06-05 10:05:37,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 10:05:37,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 10:05:37,939 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 10:05:37,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 10:05:37,939 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2021-06-05 10:05:37,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:05:37,939 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 10:05:37,939 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:05:37,939 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 10:05:37,939 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 10:05:37,939 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 10:05:37,940 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 10:05:37,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 10:05:37 BasicIcfg [2021-06-05 10:05:37,942 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 10:05:37,943 INFO L168 Benchmark]: Toolchain (without parser) took 4796.79 ms. Allocated memory was 362.8 MB in the beginning and 994.1 MB in the end (delta: 631.2 MB). Free memory was 324.7 MB in the beginning and 855.3 MB in the end (delta: -530.7 MB). Peak memory consumption was 103.2 MB. Max. memory is 16.0 GB. [2021-06-05 10:05:37,943 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 362.8 MB. Free memory is still 342.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 10:05:37,943 INFO L168 Benchmark]: CACSL2BoogieTranslator took 439.34 ms. Allocated memory is still 362.8 MB. Free memory was 324.5 MB in the beginning and 325.2 MB in the end (delta: -658.7 kB). Peak memory consumption was 8.7 MB. Max. memory is 16.0 GB. [2021-06-05 10:05:37,945 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.03 ms. Allocated memory is still 362.8 MB. Free memory was 325.2 MB in the beginning and 323.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:05:37,945 INFO L168 Benchmark]: Boogie Preprocessor took 27.85 ms. Allocated memory is still 362.8 MB. Free memory was 323.1 MB in the beginning and 321.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:05:37,946 INFO L168 Benchmark]: RCFGBuilder took 394.34 ms. Allocated memory is still 362.8 MB. Free memory was 321.0 MB in the beginning and 295.8 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-05 10:05:37,947 INFO L168 Benchmark]: TraceAbstraction took 3867.81 ms. Allocated memory was 362.8 MB in the beginning and 994.1 MB in the end (delta: 631.2 MB). Free memory was 295.8 MB in the beginning and 855.3 MB in the end (delta: -559.5 MB). Peak memory consumption was 72.8 MB. Max. memory is 16.0 GB. [2021-06-05 10:05:37,950 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 362.8 MB. Free memory is still 342.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 439.34 ms. Allocated memory is still 362.8 MB. Free memory was 324.5 MB in the beginning and 325.2 MB in the end (delta: -658.7 kB). Peak memory consumption was 8.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 47.03 ms. Allocated memory is still 362.8 MB. Free memory was 325.2 MB in the beginning and 323.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 27.85 ms. Allocated memory is still 362.8 MB. Free memory was 323.1 MB in the beginning and 321.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 394.34 ms. Allocated memory is still 362.8 MB. Free memory was 321.0 MB in the beginning and 295.8 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3867.81 ms. Allocated memory was 362.8 MB in the beginning and 994.1 MB in the end (delta: 631.2 MB). Free memory was 295.8 MB in the beginning and 855.3 MB in the end (delta: -559.5 MB). Peak memory consumption was 72.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 107 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3800.6ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 164.0ms, AutomataDifference: 1352.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 487.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 791 SDtfs, 1282 SDslu, 2610 SDs, 0 SdLazy, 254 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 185.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 823.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9332occurred in iteration=0, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 630.2ms AutomataMinimizationTime, 8 MinimizatonAttempts, 840 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 32.6ms SsaConstructionTime, 228.3ms SatisfiabilityAnalysisTime, 722.7ms InterpolantComputationTime, 437 NumberOfCodeBlocks, 437 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 429 ConstructedInterpolants, 0 QuantifiedInterpolants, 1585 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...