/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 00:20:50,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 00:20:50,846 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 00:20:50,873 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 00:20:50,888 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 00:20:50,889 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 00:20:50,890 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 00:20:50,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 00:20:50,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 00:20:50,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 00:20:50,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 00:20:50,900 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 00:20:50,901 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 00:20:50,902 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 00:20:50,902 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 00:20:50,904 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 00:20:50,908 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-14 00:20:50,914 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 00:20:50,915 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 00:20:50,915 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 00:20:50,922 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-Delay.epf [2021-07-14 00:20:50,949 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 00:20:50,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 00:20:50,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 00:20:50,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 00:20:50,951 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 00:20:50,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 00:20:50,951 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 00:20:50,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 00:20:50,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 00:20:50,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 00:20:50,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 00:20:50,953 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 00:20:50,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 00:20:50,953 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 00:20:50,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 00:20:50,953 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 00:20:50,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 00:20:50,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 00:20:50,953 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 00:20:50,953 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 00:20:50,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 00:20:50,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 00:20:50,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 00:20:50,954 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 00:20:50,954 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 00:20:50,954 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 00:20:50,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 00:20:50,954 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 00:20:50,963 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 00:20:50,963 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-14 00:20:50,963 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 00:20:51,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 00:20:51,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 00:20:51,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 00:20:51,231 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-14 00:20:51,232 INFO L275 PluginConnector]: CDTParser initialized [2021-07-14 00:20:51,233 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2021-07-14 00:20:51,281 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/487a4dd06/64d4447836f0480b8871eb22ad050dfa/FLAG1f7fc864a [2021-07-14 00:20:51,685 INFO L306 CDTParser]: Found 1 translation units. [2021-07-14 00:20:51,685 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2021-07-14 00:20:51,707 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/487a4dd06/64d4447836f0480b8871eb22ad050dfa/FLAG1f7fc864a [2021-07-14 00:20:51,719 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/487a4dd06/64d4447836f0480b8871eb22ad050dfa [2021-07-14 00:20:51,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 00:20:51,723 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-14 00:20:51,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-14 00:20:51,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-14 00:20:51,728 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-14 00:20:51,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:20:51" (1/1) ... [2021-07-14 00:20:51,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a96375d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:51, skipping insertion in model container [2021-07-14 00:20:51,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:20:51" (1/1) ... [2021-07-14 00:20:51,734 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-14 00:20:51,774 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-14 00:20:51,954 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/thin002_tso.oepc.i[950,963] [2021-07-14 00:20:52,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-14 00:20:52,091 INFO L203 MainTranslator]: Completed pre-run [2021-07-14 00:20:52,099 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/thin002_tso.oepc.i[950,963] [2021-07-14 00:20:52,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-14 00:20:52,148 INFO L208 MainTranslator]: Completed translation [2021-07-14 00:20:52,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:52 WrapperNode [2021-07-14 00:20:52,150 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-14 00:20:52,151 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 00:20:52,151 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 00:20:52,151 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 00:20:52,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:52" (1/1) ... [2021-07-14 00:20:52,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:52" (1/1) ... [2021-07-14 00:20:52,192 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 00:20:52,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 00:20:52,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 00:20:52,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 00:20:52,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:52" (1/1) ... [2021-07-14 00:20:52,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:52" (1/1) ... [2021-07-14 00:20:52,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:52" (1/1) ... [2021-07-14 00:20:52,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:52" (1/1) ... [2021-07-14 00:20:52,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:52" (1/1) ... [2021-07-14 00:20:52,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:52" (1/1) ... [2021-07-14 00:20:52,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:52" (1/1) ... [2021-07-14 00:20:52,206 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 00:20:52,207 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 00:20:52,207 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 00:20:52,207 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 00:20:52,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 00:20:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-14 00:20:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-14 00:20:52,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-14 00:20:52,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-14 00:20:52,257 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-14 00:20:52,257 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-14 00:20:52,258 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-14 00:20:52,258 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-14 00:20:52,258 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-07-14 00:20:52,258 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-07-14 00:20:52,258 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-07-14 00:20:52,258 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-07-14 00:20:52,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-14 00:20:52,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-14 00:20:52,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 00:20:52,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 00:20:52,260 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 00:20:52,603 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 00:20:52,603 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-14 00:20:52,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:20:52 BoogieIcfgContainer [2021-07-14 00:20:52,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 00:20:52,606 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 00:20:52,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 00:20:52,608 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 00:20:52,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:20:51" (1/3) ... [2021-07-14 00:20:52,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@466bf336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:20:52, skipping insertion in model container [2021-07-14 00:20:52,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:20:52" (2/3) ... [2021-07-14 00:20:52,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@466bf336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:20:52, skipping insertion in model container [2021-07-14 00:20:52,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:20:52" (3/3) ... [2021-07-14 00:20:52,610 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.oepc.i [2021-07-14 00:20:52,614 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 00:20:52,614 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 00:20:52,614 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 00:20:52,615 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 00:20:52,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,649 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,649 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,649 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,649 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,649 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,649 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,649 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,650 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,650 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,650 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,650 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,651 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,651 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,651 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,651 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,651 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,651 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,651 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,651 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,652 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,652 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,652 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,652 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,652 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,653 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,653 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,653 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,653 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,653 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,653 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,654 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,654 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,654 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,654 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,654 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,655 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,655 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,655 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,655 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,656 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,656 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,656 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,656 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,656 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,656 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,656 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,656 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,658 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,658 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,658 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,658 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,661 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,661 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,662 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,662 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,663 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,663 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,665 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,665 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,665 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,665 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:20:52,666 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-14 00:20:52,682 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-07-14 00:20:52,698 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 00:20:52,698 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 00:20:52,698 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 00:20:52,698 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 00:20:52,698 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 00:20:52,698 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 00:20:52,698 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 00:20:52,698 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 00:20:54,737 INFO L276 IsEmpty]: Start isEmpty. Operand has 38833 states, 33289 states have (on average 2.1380035447144703) internal successors, (71172), 38832 states have internal predecessors, (71172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:54,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-07-14 00:20:54,783 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:20:54,784 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:20:54,784 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:20:54,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:20:54,788 INFO L82 PathProgramCache]: Analyzing trace with hash -190192830, now seen corresponding path program 1 times [2021-07-14 00:20:54,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:20:54,794 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326622078] [2021-07-14 00:20:54,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:20:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:20:55,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:55,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:55,132 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:20:55,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:20:55,154 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:20:55,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:20:55,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:55,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:20:55,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:55,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:20:55,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:55,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:55,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:20:55,203 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:20:55,204 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326622078] [2021-07-14 00:20:55,208 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326622078] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:20:55,208 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:20:55,209 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-14 00:20:55,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467208410] [2021-07-14 00:20:55,211 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-14 00:20:55,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:20:55,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-14 00:20:55,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-14 00:20:55,281 INFO L87 Difference]: Start difference. First operand has 38833 states, 33289 states have (on average 2.1380035447144703) internal successors, (71172), 38832 states have internal predecessors, (71172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 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) [2021-07-14 00:20:55,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:20:55,890 INFO L93 Difference]: Finished difference Result 48341 states and 91667 transitions. [2021-07-14 00:20:55,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 00:20:55,892 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 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 [2021-07-14 00:20:55,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:20:56,036 INFO L225 Difference]: With dead ends: 48341 [2021-07-14 00:20:56,036 INFO L226 Difference]: Without dead ends: 21218 [2021-07-14 00:20:56,037 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 123.6ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-14 00:20:56,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21218 states. [2021-07-14 00:20:56,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21218 to 21218. [2021-07-14 00:20:56,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21218 states, 20875 states have (on average 2.372359281437126) internal successors, (49523), 21217 states have internal predecessors, (49523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:56,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21218 states to 21218 states and 49523 transitions. [2021-07-14 00:20:56,866 INFO L78 Accepts]: Start accepts. Automaton has 21218 states and 49523 transitions. Word has length 59 [2021-07-14 00:20:56,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:20:56,868 INFO L482 AbstractCegarLoop]: Abstraction has 21218 states and 49523 transitions. [2021-07-14 00:20:56,869 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 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) [2021-07-14 00:20:56,869 INFO L276 IsEmpty]: Start isEmpty. Operand 21218 states and 49523 transitions. [2021-07-14 00:20:56,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-07-14 00:20:56,887 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:20:56,887 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:20:56,887 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 00:20:56,887 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:20:56,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:20:56,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1301676157, now seen corresponding path program 1 times [2021-07-14 00:20:56,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:20:56,890 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790600065] [2021-07-14 00:20:56,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:20:56,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:20:56,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:56,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:56,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:56,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:20:56,968 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:20:56,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:20:56,980 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:20:56,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:20:56,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:56,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:20:57,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:57,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:20:57,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:57,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:57,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:20:57,012 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:20:57,012 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790600065] [2021-07-14 00:20:57,012 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790600065] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:20:57,012 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:20:57,012 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:20:57,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398882914] [2021-07-14 00:20:57,013 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:20:57,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:20:57,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:20:57,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:20:57,014 INFO L87 Difference]: Start difference. First operand 21218 states and 49523 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) [2021-07-14 00:20:57,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:20:57,418 INFO L93 Difference]: Finished difference Result 23898 states and 60191 transitions. [2021-07-14 00:20:57,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 00:20:57,419 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 [2021-07-14 00:20:57,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:20:57,474 INFO L225 Difference]: With dead ends: 23898 [2021-07-14 00:20:57,474 INFO L226 Difference]: Without dead ends: 17198 [2021-07-14 00:20:57,475 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 87.8ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-07-14 00:20:57,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17198 states. [2021-07-14 00:20:57,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17198 to 17198. [2021-07-14 00:20:57,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17198 states, 16855 states have (on average 2.488935034114506) internal successors, (41951), 17197 states have internal predecessors, (41951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:57,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17198 states to 17198 states and 41951 transitions. [2021-07-14 00:20:57,952 INFO L78 Accepts]: Start accepts. Automaton has 17198 states and 41951 transitions. Word has length 61 [2021-07-14 00:20:57,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:20:57,953 INFO L482 AbstractCegarLoop]: Abstraction has 17198 states and 41951 transitions. [2021-07-14 00:20:57,953 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) [2021-07-14 00:20:57,953 INFO L276 IsEmpty]: Start isEmpty. Operand 17198 states and 41951 transitions. [2021-07-14 00:20:57,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-07-14 00:20:57,965 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:20:57,966 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:20:57,966 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 00:20:57,966 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:20:57,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:20:57,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1200664125, now seen corresponding path program 1 times [2021-07-14 00:20:57,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:20:57,967 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818341379] [2021-07-14 00:20:57,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:20:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:20:58,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:58,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:58,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:58,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:20:58,034 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:20:58,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:20:58,042 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:20:58,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:20:58,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:58,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:20:58,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:58,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:20:58,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:58,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:58,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:20:58,069 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:20:58,069 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818341379] [2021-07-14 00:20:58,070 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818341379] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:20:58,070 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:20:58,070 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:20:58,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541830605] [2021-07-14 00:20:58,070 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:20:58,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:20:58,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:20:58,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:20:58,071 INFO L87 Difference]: Start difference. First operand 17198 states and 41951 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) [2021-07-14 00:20:58,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:20:58,554 INFO L93 Difference]: Finished difference Result 28652 states and 75646 transitions. [2021-07-14 00:20:58,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 00:20:58,555 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 [2021-07-14 00:20:58,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:20:58,599 INFO L225 Difference]: With dead ends: 28652 [2021-07-14 00:20:58,602 INFO L226 Difference]: Without dead ends: 15134 [2021-07-14 00:20:58,602 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 264.9ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-07-14 00:20:58,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15134 states. [2021-07-14 00:20:58,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15134 to 15134. [2021-07-14 00:20:58,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15134 states, 14833 states have (on average 2.4492011056428233) internal successors, (36329), 15133 states have internal predecessors, (36329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:59,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15134 states to 15134 states and 36329 transitions. [2021-07-14 00:20:59,003 INFO L78 Accepts]: Start accepts. Automaton has 15134 states and 36329 transitions. Word has length 61 [2021-07-14 00:20:59,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:20:59,004 INFO L482 AbstractCegarLoop]: Abstraction has 15134 states and 36329 transitions. [2021-07-14 00:20:59,004 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) [2021-07-14 00:20:59,004 INFO L276 IsEmpty]: Start isEmpty. Operand 15134 states and 36329 transitions. [2021-07-14 00:20:59,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-07-14 00:20:59,019 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:20:59,019 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:20:59,019 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-14 00:20:59,019 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:20:59,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:20:59,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1323130424, now seen corresponding path program 1 times [2021-07-14 00:20:59,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:20:59,020 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190188033] [2021-07-14 00:20:59,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:20:59,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:20:59,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:59,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:59,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:59,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:20:59,060 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:20:59,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:20:59,068 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:20:59,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:20:59,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:59,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:20:59,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:59,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:20:59,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:59,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:59,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:20:59,095 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:20:59,095 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190188033] [2021-07-14 00:20:59,095 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190188033] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:20:59,095 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:20:59,095 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:20:59,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254060456] [2021-07-14 00:20:59,096 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:20:59,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:20:59,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:20:59,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:20:59,096 INFO L87 Difference]: Start difference. First operand 15134 states and 36329 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:59,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:20:59,233 INFO L93 Difference]: Finished difference Result 16114 states and 40000 transitions. [2021-07-14 00:20:59,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 00:20:59,233 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-07-14 00:20:59,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:20:59,271 INFO L225 Difference]: With dead ends: 16114 [2021-07-14 00:20:59,272 INFO L226 Difference]: Without dead ends: 13260 [2021-07-14 00:20:59,272 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 78.2ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-07-14 00:20:59,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13260 states. [2021-07-14 00:20:59,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13260 to 13080. [2021-07-14 00:20:59,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13080 states, 12849 states have (on average 2.4294497626274416) internal successors, (31216), 13079 states have internal predecessors, (31216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:59,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13080 states to 13080 states and 31216 transitions. [2021-07-14 00:20:59,685 INFO L78 Accepts]: Start accepts. Automaton has 13080 states and 31216 transitions. Word has length 64 [2021-07-14 00:20:59,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:20:59,685 INFO L482 AbstractCegarLoop]: Abstraction has 13080 states and 31216 transitions. [2021-07-14 00:20:59,686 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:20:59,686 INFO L276 IsEmpty]: Start isEmpty. Operand 13080 states and 31216 transitions. [2021-07-14 00:20:59,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-07-14 00:20:59,704 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:20:59,704 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:20:59,704 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-14 00:20:59,705 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:20:59,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:20:59,705 INFO L82 PathProgramCache]: Analyzing trace with hash -2025967752, now seen corresponding path program 1 times [2021-07-14 00:20:59,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:20:59,707 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447851306] [2021-07-14 00:20:59,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:20:59,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:20:59,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:59,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:59,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:59,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:20:59,783 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:20:59,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:20:59,797 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:20:59,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:20:59,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:59,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:20:59,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:59,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:20:59,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:20:59,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:20:59,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:20:59,836 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:20:59,836 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447851306] [2021-07-14 00:20:59,836 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447851306] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:20:59,836 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:20:59,836 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-14 00:20:59,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759815714] [2021-07-14 00:20:59,836 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 00:20:59,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:20:59,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 00:20:59,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-14 00:20:59,837 INFO L87 Difference]: Start difference. First operand 13080 states and 31216 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:21:00,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:21:00,054 INFO L93 Difference]: Finished difference Result 14312 states and 36119 transitions. [2021-07-14 00:21:00,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-14 00:21:00,055 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-07-14 00:21:00,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:21:00,083 INFO L225 Difference]: With dead ends: 14312 [2021-07-14 00:21:00,083 INFO L226 Difference]: Without dead ends: 10832 [2021-07-14 00:21:00,083 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 95.4ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-07-14 00:21:00,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10832 states. [2021-07-14 00:21:00,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10832 to 10496. [2021-07-14 00:21:00,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10496 states, 10321 states have (on average 2.496075961631625) internal successors, (25762), 10495 states have internal predecessors, (25762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:21:00,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10496 states to 10496 states and 25762 transitions. [2021-07-14 00:21:00,278 INFO L78 Accepts]: Start accepts. Automaton has 10496 states and 25762 transitions. Word has length 64 [2021-07-14 00:21:00,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:21:00,278 INFO L482 AbstractCegarLoop]: Abstraction has 10496 states and 25762 transitions. [2021-07-14 00:21:00,278 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:21:00,279 INFO L276 IsEmpty]: Start isEmpty. Operand 10496 states and 25762 transitions. [2021-07-14 00:21:00,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-14 00:21:00,290 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:21:00,291 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:21:00,291 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-14 00:21:00,291 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:21:00,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:21:00,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1743088681, now seen corresponding path program 1 times [2021-07-14 00:21:00,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:21:00,291 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041492468] [2021-07-14 00:21:00,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:21:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:21:00,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:21:00,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:21:00,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:21:00,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:21:00,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:21:00,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:21:00,336 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:21:00,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:21:00,348 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:21:00,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:21:00,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:21:00,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:21:00,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:21:00,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:21:00,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:21:00,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:21:00,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:21:00,381 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:21:00,381 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041492468] [2021-07-14 00:21:00,381 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041492468] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:21:00,381 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:21:00,382 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-14 00:21:00,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809603910] [2021-07-14 00:21:00,382 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 00:21:00,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:21:00,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 00:21:00,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-07-14 00:21:00,384 INFO L87 Difference]: Start difference. First operand 10496 states and 25762 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:21:00,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:21:00,591 INFO L93 Difference]: Finished difference Result 13596 states and 34753 transitions. [2021-07-14 00:21:00,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 00:21:00,592 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-07-14 00:21:00,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:21:00,607 INFO L225 Difference]: With dead ends: 13596 [2021-07-14 00:21:00,608 INFO L226 Difference]: Without dead ends: 5816 [2021-07-14 00:21:00,608 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 129.8ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-14 00:21:00,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5816 states. [2021-07-14 00:21:00,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5816 to 5816. [2021-07-14 00:21:00,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5816 states, 5641 states have (on average 2.734621521006914) internal successors, (15426), 5815 states have internal predecessors, (15426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:21:00,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5816 states to 5816 states and 15426 transitions. [2021-07-14 00:21:00,803 INFO L78 Accepts]: Start accepts. Automaton has 5816 states and 15426 transitions. Word has length 66 [2021-07-14 00:21:00,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:21:00,803 INFO L482 AbstractCegarLoop]: Abstraction has 5816 states and 15426 transitions. [2021-07-14 00:21:00,803 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:21:00,803 INFO L276 IsEmpty]: Start isEmpty. Operand 5816 states and 15426 transitions. [2021-07-14 00:21:00,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-14 00:21:00,809 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:21:00,809 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:21:00,809 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-14 00:21:00,809 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:21:00,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:21:00,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1140388217, now seen corresponding path program 1 times [2021-07-14 00:21:00,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:21:00,810 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333720058] [2021-07-14 00:21:00,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:21:00,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:21:00,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:21:00,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:21:00,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:21:00,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:21:00,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:21:00,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:21:00,879 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:21:00,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:21:00,887 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:21:00,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:21:00,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:21:00,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:21:00,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:21:00,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:21:00,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:21:00,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:21:00,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:21:00,916 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:21:00,916 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333720058] [2021-07-14 00:21:00,917 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333720058] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:21:00,918 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:21:00,918 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-14 00:21:00,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678663317] [2021-07-14 00:21:00,919 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 00:21:00,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:21:00,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 00:21:00,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-07-14 00:21:00,919 INFO L87 Difference]: Start difference. First operand 5816 states and 15426 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:21:01,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:21:01,041 INFO L93 Difference]: Finished difference Result 7846 states and 21510 transitions. [2021-07-14 00:21:01,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 00:21:01,042 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-07-14 00:21:01,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:21:01,050 INFO L225 Difference]: With dead ends: 7846 [2021-07-14 00:21:01,050 INFO L226 Difference]: Without dead ends: 3500 [2021-07-14 00:21:01,051 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 97.7ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-14 00:21:01,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3500 states. [2021-07-14 00:21:01,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3500 to 3500. [2021-07-14 00:21:01,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3500 states, 3400 states have (on average 2.8385294117647057) internal successors, (9651), 3499 states have internal predecessors, (9651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:21:01,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3500 states to 3500 states and 9651 transitions. [2021-07-14 00:21:01,099 INFO L78 Accepts]: Start accepts. Automaton has 3500 states and 9651 transitions. Word has length 66 [2021-07-14 00:21:01,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:21:01,100 INFO L482 AbstractCegarLoop]: Abstraction has 3500 states and 9651 transitions. [2021-07-14 00:21:01,100 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:21:01,100 INFO L276 IsEmpty]: Start isEmpty. Operand 3500 states and 9651 transitions. [2021-07-14 00:21:01,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-07-14 00:21:01,103 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:21:01,103 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:21:01,103 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-14 00:21:01,103 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:21:01,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:21:01,104 INFO L82 PathProgramCache]: Analyzing trace with hash 419086168, now seen corresponding path program 1 times [2021-07-14 00:21:01,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:21:01,104 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263298467] [2021-07-14 00:21:01,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:21:01,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:21:01,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:21:01,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:21:01,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:21:01,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:21:01,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:21:01,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:21:01,134 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:21:01,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:21:01,142 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:21:01,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:21:01,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:21:01,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:21:01,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:21:01,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:21:01,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:21:01,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:21:01,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:21:01,170 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:21:01,170 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263298467] [2021-07-14 00:21:01,170 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263298467] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:21:01,170 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:21:01,170 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-14 00:21:01,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380676217] [2021-07-14 00:21:01,171 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 00:21:01,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:21:01,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 00:21:01,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-07-14 00:21:01,171 INFO L87 Difference]: Start difference. First operand 3500 states and 9651 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:21:01,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:21:01,275 INFO L93 Difference]: Finished difference Result 5100 states and 14977 transitions. [2021-07-14 00:21:01,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 00:21:01,276 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 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 69 [2021-07-14 00:21:01,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:21:01,282 INFO L225 Difference]: With dead ends: 5100 [2021-07-14 00:21:01,282 INFO L226 Difference]: Without dead ends: 2320 [2021-07-14 00:21:01,282 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 96.3ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-14 00:21:01,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2320 states. [2021-07-14 00:21:01,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2320 to 2320. [2021-07-14 00:21:01,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2320 states, 2240 states have (on average 3.1964285714285716) internal successors, (7160), 2319 states have internal predecessors, (7160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:21:01,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2320 states to 2320 states and 7160 transitions. [2021-07-14 00:21:01,318 INFO L78 Accepts]: Start accepts. Automaton has 2320 states and 7160 transitions. Word has length 69 [2021-07-14 00:21:01,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:21:01,318 INFO L482 AbstractCegarLoop]: Abstraction has 2320 states and 7160 transitions. [2021-07-14 00:21:01,318 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:21:01,318 INFO L276 IsEmpty]: Start isEmpty. Operand 2320 states and 7160 transitions. [2021-07-14 00:21:01,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-07-14 00:21:01,320 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:21:01,321 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:21:01,321 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-14 00:21:01,321 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:21:01,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:21:01,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1366177544, now seen corresponding path program 1 times [2021-07-14 00:21:01,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:21:01,321 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675517944] [2021-07-14 00:21:01,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:21:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:21:01,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:21:01,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:21:01,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:21:01,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:21:01,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:21:01,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:21:01,349 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-07-14 00:21:01,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-14 00:21:01,357 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-14 00:21:01,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-14 00:21:01,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:21:01,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:21:01,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:21:01,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-14 00:21:01,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:21:01,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:21:01,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:21:01,389 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:21:01,389 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675517944] [2021-07-14 00:21:01,389 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675517944] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:21:01,389 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:21:01,389 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-14 00:21:01,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69797549] [2021-07-14 00:21:01,389 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 00:21:01,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:21:01,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 00:21:01,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-07-14 00:21:01,390 INFO L87 Difference]: Start difference. First operand 2320 states and 7160 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:21:01,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:21:01,537 INFO L93 Difference]: Finished difference Result 1840 states and 5838 transitions. [2021-07-14 00:21:01,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 00:21:01,538 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-07-14 00:21:01,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:21:01,538 INFO L225 Difference]: With dead ends: 1840 [2021-07-14 00:21:01,538 INFO L226 Difference]: Without dead ends: 0 [2021-07-14 00:21:01,539 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 156.2ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-07-14 00:21:01,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-14 00:21:01,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-14 00:21:01,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:21:01,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-14 00:21:01,539 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2021-07-14 00:21:01,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:21:01,539 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-14 00:21:01,539 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 00:21:01,539 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-14 00:21:01,539 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-14 00:21:01,539 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-14 00:21:01,541 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-14 00:21:01,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 12:21:01 BasicIcfg [2021-07-14 00:21:01,542 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-14 00:21:01,543 INFO L168 Benchmark]: Toolchain (without parser) took 9819.29 ms. Allocated memory was 179.3 MB in the beginning and 3.8 GB in the end (delta: 3.6 GB). Free memory was 142.7 MB in the beginning and 3.3 GB in the end (delta: -3.2 GB). Peak memory consumption was 470.7 MB. Max. memory is 8.0 GB. [2021-07-14 00:21:01,543 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 179.3 MB. Free memory is still 160.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 00:21:01,543 INFO L168 Benchmark]: CACSL2BoogieTranslator took 424.39 ms. Allocated memory is still 179.3 MB. Free memory was 142.5 MB in the beginning and 152.4 MB in the end (delta: -10.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-07-14 00:21:01,543 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.70 ms. Allocated memory is still 179.3 MB. Free memory was 152.0 MB in the beginning and 150.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-14 00:21:01,544 INFO L168 Benchmark]: Boogie Preprocessor took 13.84 ms. Allocated memory is still 179.3 MB. Free memory was 150.4 MB in the beginning and 148.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-14 00:21:01,544 INFO L168 Benchmark]: RCFGBuilder took 398.01 ms. Allocated memory is still 179.3 MB. Free memory was 148.9 MB in the beginning and 122.3 MB in the end (delta: 26.6 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2021-07-14 00:21:01,544 INFO L168 Benchmark]: TraceAbstraction took 8936.03 ms. Allocated memory was 179.3 MB in the beginning and 3.8 GB in the end (delta: 3.6 GB). Free memory was 122.0 MB in the beginning and 3.3 GB in the end (delta: -3.2 GB). Peak memory consumption was 450.4 MB. Max. memory is 8.0 GB. [2021-07-14 00:21:01,545 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 179.3 MB. Free memory is still 160.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 424.39 ms. Allocated memory is still 179.3 MB. Free memory was 142.5 MB in the beginning and 152.4 MB in the end (delta: -10.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 41.70 ms. Allocated memory is still 179.3 MB. Free memory was 152.0 MB in the beginning and 150.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.84 ms. Allocated memory is still 179.3 MB. Free memory was 150.4 MB in the beginning and 148.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 398.01 ms. Allocated memory is still 179.3 MB. Free memory was 148.9 MB in the beginning and 122.3 MB in the end (delta: 26.6 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 8936.03 ms. Allocated memory was 179.3 MB in the beginning and 3.8 GB in the end (delta: 3.6 GB). Free memory was 122.0 MB in the beginning and 3.3 GB in the end (delta: -3.2 GB). Peak memory consumption was 450.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 184958, positive: 180850, positive conditional: 180850, positive unconditional: 0, negative: 4108, negative conditional: 4108, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 184421, positive: 180850, positive conditional: 0, positive unconditional: 180850, negative: 3571, negative conditional: 0, negative unconditional: 3571, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1119, positive: 1099, positive conditional: 0, positive unconditional: 1099, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1119, positive: 1090, positive conditional: 0, positive unconditional: 1090, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 29, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 63, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 184421, positive: 179751, positive conditional: 0, positive unconditional: 179751, negative: 3551, negative conditional: 0, negative unconditional: 3551, unknown: 1119, unknown conditional: 0, unknown unconditional: 1119] , Statistics on independence cache: Total cache size (in pairs): 1119, Positive cache size: 1099, Positive conditional cache size: 0, Positive unconditional cache size: 1099, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Independence queries for same thread: 537 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 134 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8843.5ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 256.3ms, AutomataDifference: 2859.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1915.5ms, PartialOrderReductionTime: 1903.9ms, HoareTripleCheckerStatistics: 1175 SDtfs, 1737 SDslu, 3806 SDs, 0 SdLazy, 292 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 324.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1130.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=38833occurred in iteration=0, InterpolantAutomatonStates: 98, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 2582.6ms AutomataMinimizationTime, 9 MinimizatonAttempts, 516 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 34.3ms SsaConstructionTime, 168.9ms SatisfiabilityAnalysisTime, 784.7ms InterpolantComputationTime, 580 NumberOfCodeBlocks, 580 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 571 ConstructedInterpolants, 0 QuantifiedInterpolants, 2377 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...