/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-6f57305 [2021-01-26 17:28:32,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-26 17:28:32,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-26 17:28:33,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-26 17:28:33,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-26 17:28:33,044 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-26 17:28:33,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-26 17:28:33,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-26 17:28:33,050 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-26 17:28:33,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-26 17:28:33,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-26 17:28:33,053 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-26 17:28:33,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-26 17:28:33,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-26 17:28:33,056 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-26 17:28:33,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-26 17:28:33,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-26 17:28:33,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-26 17:28:33,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-26 17:28:33,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-26 17:28:33,066 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-26 17:28:33,068 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-26 17:28:33,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-26 17:28:33,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-26 17:28:33,073 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-26 17:28:33,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-26 17:28:33,078 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-26 17:28:33,079 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-26 17:28:33,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-26 17:28:33,081 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-26 17:28:33,082 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-26 17:28:33,082 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-26 17:28:33,083 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-26 17:28:33,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-26 17:28:33,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-26 17:28:33,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-26 17:28:33,086 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-01-26 17:28:33,114 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-26 17:28:33,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-26 17:28:33,116 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-26 17:28:33,116 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-26 17:28:33,117 INFO L138 SettingsManager]: * Use SBE=true [2021-01-26 17:28:33,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-26 17:28:33,117 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-26 17:28:33,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-26 17:28:33,118 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-26 17:28:33,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-26 17:28:33,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-26 17:28:33,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-26 17:28:33,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-26 17:28:33,119 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-26 17:28:33,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-26 17:28:33,120 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-26 17:28:33,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-26 17:28:33,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-26 17:28:33,121 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-26 17:28:33,121 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-26 17:28:33,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-26 17:28:33,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-26 17:28:33,122 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-26 17:28:33,122 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-26 17:28:33,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-26 17:28:33,122 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-26 17:28:33,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-26 17:28:33,123 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-26 17:28:33,123 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-26 17:28:33,123 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-26 17:28:33,124 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-26 17:28:33,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-26 17:28:33,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-26 17:28:33,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-26 17:28:33,495 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-26 17:28:33,496 INFO L275 PluginConnector]: CDTParser initialized [2021-01-26 17:28:33,497 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.opt.i [2021-01-26 17:28:33,566 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/013654eea/b2d14be4787342fab697566a7ec13c8c/FLAGe1874605b [2021-01-26 17:28:34,256 INFO L306 CDTParser]: Found 1 translation units. [2021-01-26 17:28:34,261 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.opt.i [2021-01-26 17:28:34,283 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/013654eea/b2d14be4787342fab697566a7ec13c8c/FLAGe1874605b [2021-01-26 17:28:34,507 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/013654eea/b2d14be4787342fab697566a7ec13c8c [2021-01-26 17:28:34,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-26 17:28:34,524 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-26 17:28:34,527 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-26 17:28:34,527 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-26 17:28:34,531 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-26 17:28:34,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 05:28:34" (1/1) ... [2021-01-26 17:28:34,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e6dfd70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:28:34, skipping insertion in model container [2021-01-26 17:28:34,540 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 05:28:34" (1/1) ... [2021-01-26 17:28:34,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-26 17:28:34,616 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-26 17:28:34,962 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 17:28:34,976 INFO L203 MainTranslator]: Completed pre-run [2021-01-26 17:28:35,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 17:28:35,155 INFO L208 MainTranslator]: Completed translation [2021-01-26 17:28:35,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:28:35 WrapperNode [2021-01-26 17:28:35,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-26 17:28:35,157 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-26 17:28:35,157 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-26 17:28:35,158 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-26 17:28:35,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:28:35" (1/1) ... [2021-01-26 17:28:35,182 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:28:35" (1/1) ... [2021-01-26 17:28:35,205 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-26 17:28:35,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-26 17:28:35,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-26 17:28:35,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-26 17:28:35,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:28:35" (1/1) ... [2021-01-26 17:28:35,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:28:35" (1/1) ... [2021-01-26 17:28:35,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:28:35" (1/1) ... [2021-01-26 17:28:35,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:28:35" (1/1) ... [2021-01-26 17:28:35,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:28:35" (1/1) ... [2021-01-26 17:28:35,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:28:35" (1/1) ... [2021-01-26 17:28:35,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:28:35" (1/1) ... [2021-01-26 17:28:35,238 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-26 17:28:35,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-26 17:28:35,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-26 17:28:35,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-26 17:28:35,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:28:35" (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 [2021-01-26 17:28:35,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-26 17:28:35,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-26 17:28:35,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-26 17:28:35,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-26 17:28:35,323 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-26 17:28:35,323 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-26 17:28:35,323 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-26 17:28:35,323 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-26 17:28:35,325 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-26 17:28:35,325 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-26 17:28:35,325 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-01-26 17:28:35,325 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-01-26 17:28:35,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-26 17:28:35,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-26 17:28:35,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-26 17:28:35,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-26 17:28:35,328 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-26 17:28:35,713 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-26 17:28:35,713 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-26 17:28:35,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 05:28:35 BoogieIcfgContainer [2021-01-26 17:28:35,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-26 17:28:35,717 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-26 17:28:35,717 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-26 17:28:35,721 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-26 17:28:35,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 05:28:34" (1/3) ... [2021-01-26 17:28:35,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@733548db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 05:28:35, skipping insertion in model container [2021-01-26 17:28:35,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:28:35" (2/3) ... [2021-01-26 17:28:35,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@733548db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 05:28:35, skipping insertion in model container [2021-01-26 17:28:35,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 05:28:35" (3/3) ... [2021-01-26 17:28:35,724 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_tso.opt.i [2021-01-26 17:28:35,739 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-26 17:28:35,739 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-26 17:28:35,742 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-26 17:28:35,743 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-26 17:28:35,805 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,806 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,806 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,806 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,806 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,807 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,807 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,807 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,808 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,808 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,808 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,808 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,809 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,809 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,809 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,809 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,810 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,810 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,810 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,810 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,811 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,811 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,811 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,811 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,812 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,812 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,812 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,812 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,812 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,813 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,813 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,813 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,813 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,814 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,814 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,814 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,815 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,815 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,815 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,816 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,816 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,816 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,816 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,816 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,817 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,817 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,817 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,817 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,820 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,820 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,820 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,821 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,826 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,826 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,826 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,827 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,829 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,829 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,829 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,829 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,831 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,831 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,832 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,832 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:28:35,834 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-26 17:28:35,846 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-01-26 17:28:35,869 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-26 17:28:35,869 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-26 17:28:35,869 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-26 17:28:35,870 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-26 17:28:35,870 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-26 17:28:35,870 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-26 17:28:35,870 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-26 17:28:35,870 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-26 17:28:35,882 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 99 places, 89 transitions, 198 flow [2021-01-26 17:28:44,517 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 54311 states, 54309 states have (on average 4.420317074518036) internal successors, (240063), 54310 states have internal predecessors, (240063), 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) [2021-01-26 17:28:44,599 INFO L276 IsEmpty]: Start isEmpty. Operand has 54311 states, 54309 states have (on average 4.420317074518036) internal successors, (240063), 54310 states have internal predecessors, (240063), 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) [2021-01-26 17:28:45,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-26 17:28:45,072 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:28:45,076 INFO L504 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] [2021-01-26 17:28:45,077 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:28:45,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:28:45,091 INFO L82 PathProgramCache]: Analyzing trace with hash -864945227, now seen corresponding path program 1 times [2021-01-26 17:28:45,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:28:45,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412628951] [2021-01-26 17:28:45,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:28:45,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:28:45,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:28:45,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412628951] [2021-01-26 17:28:45,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:28:45,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:28:45,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252146156] [2021-01-26 17:28:45,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:28:45,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:28:45,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:28:45,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:28:45,755 INFO L87 Difference]: Start difference. First operand has 54311 states, 54309 states have (on average 4.420317074518036) internal successors, (240063), 54310 states have internal predecessors, (240063), 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 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2021-01-26 17:28:46,009 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-01-26 17:28:47,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:28:47,686 INFO L93 Difference]: Finished difference Result 73967 states and 317811 transitions. [2021-01-26 17:28:47,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:28:47,689 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 45 [2021-01-26 17:28:47,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:28:48,098 INFO L225 Difference]: With dead ends: 73967 [2021-01-26 17:28:48,099 INFO L226 Difference]: Without dead ends: 25835 [2021-01-26 17:28:48,101 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:28:48,102 INFO L78 Accepts]: Start accepts. Automaton has 25835 states. Word has length 45 [2021-01-26 17:28:48,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:28:48,104 INFO L481 AbstractCegarLoop]: Abstraction has 25835 states. [2021-01-26 17:28:48,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2021-01-26 17:28:48,104 INFO L276 IsEmpty]: Start isEmpty. Operand 25835 states. [2021-01-26 17:28:48,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-26 17:28:48,168 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:28:48,169 INFO L504 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] [2021-01-26 17:28:48,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-26 17:28:48,170 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:28:48,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:28:48,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1139015446, now seen corresponding path program 1 times [2021-01-26 17:28:48,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:28:48,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152869871] [2021-01-26 17:28:48,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:28:48,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:28:48,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:28:48,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152869871] [2021-01-26 17:28:48,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:28:48,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:28:48,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509323648] [2021-01-26 17:28:48,351 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:28:48,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:28:48,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:28:48,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:28:48,353 INFO L87 Difference]: Start difference. First operand 25835 states. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2021-01-26 17:28:49,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:28:49,041 INFO L93 Difference]: Finished difference Result 28427 states and 119043 transitions. [2021-01-26 17:28:49,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:28:49,042 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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 47 [2021-01-26 17:28:49,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:28:49,174 INFO L225 Difference]: With dead ends: 28427 [2021-01-26 17:28:49,174 INFO L226 Difference]: Without dead ends: 22379 [2021-01-26 17:28:49,176 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:28:49,176 INFO L78 Accepts]: Start accepts. Automaton has 22379 states. Word has length 47 [2021-01-26 17:28:49,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:28:49,177 INFO L481 AbstractCegarLoop]: Abstraction has 22379 states. [2021-01-26 17:28:49,177 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2021-01-26 17:28:49,178 INFO L276 IsEmpty]: Start isEmpty. Operand 22379 states. [2021-01-26 17:28:49,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-26 17:28:49,481 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:28:49,481 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 17:28:49,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-26 17:28:49,481 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:28:49,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:28:49,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1367050025, now seen corresponding path program 1 times [2021-01-26 17:28:49,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:28:49,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882266524] [2021-01-26 17:28:49,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:28:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:28:49,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:28:49,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882266524] [2021-01-26 17:28:49,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:28:49,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:28:49,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080613911] [2021-01-26 17:28:49,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:28:49,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:28:49,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:28:49,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:28:49,606 INFO L87 Difference]: Start difference. First operand 22379 states. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:28:49,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:28:49,922 INFO L93 Difference]: Finished difference Result 26123 states and 108715 transitions. [2021-01-26 17:28:49,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:28:49,923 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-01-26 17:28:49,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:28:50,285 INFO L225 Difference]: With dead ends: 26123 [2021-01-26 17:28:50,285 INFO L226 Difference]: Without dead ends: 21803 [2021-01-26 17:28:50,286 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:28:50,286 INFO L78 Accepts]: Start accepts. Automaton has 21803 states. Word has length 49 [2021-01-26 17:28:50,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:28:50,287 INFO L481 AbstractCegarLoop]: Abstraction has 21803 states. [2021-01-26 17:28:50,287 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:28:50,287 INFO L276 IsEmpty]: Start isEmpty. Operand 21803 states. [2021-01-26 17:28:50,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-26 17:28:50,371 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:28:50,371 INFO L504 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] [2021-01-26 17:28:50,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-26 17:28:50,372 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:28:50,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:28:50,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1400237191, now seen corresponding path program 1 times [2021-01-26 17:28:50,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:28:50,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71790965] [2021-01-26 17:28:50,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:28:50,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:28:50,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:28:50,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71790965] [2021-01-26 17:28:50,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:28:50,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:28:50,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428732884] [2021-01-26 17:28:50,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:28:50,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:28:50,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:28:50,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:28:50,547 INFO L87 Difference]: Start difference. First operand 21803 states. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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) [2021-01-26 17:28:50,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:28:50,877 INFO L93 Difference]: Finished difference Result 23147 states and 96115 transitions. [2021-01-26 17:28:50,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:28:50,878 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 50 [2021-01-26 17:28:50,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:28:50,982 INFO L225 Difference]: With dead ends: 23147 [2021-01-26 17:28:50,983 INFO L226 Difference]: Without dead ends: 20011 [2021-01-26 17:28:50,983 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:28:50,983 INFO L78 Accepts]: Start accepts. Automaton has 20011 states. Word has length 50 [2021-01-26 17:28:50,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:28:50,984 INFO L481 AbstractCegarLoop]: Abstraction has 20011 states. [2021-01-26 17:28:50,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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) [2021-01-26 17:28:50,985 INFO L276 IsEmpty]: Start isEmpty. Operand 20011 states. [2021-01-26 17:28:51,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-01-26 17:28:51,040 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:28:51,041 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 17:28:51,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-26 17:28:51,041 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:28:51,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:28:51,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1483394242, now seen corresponding path program 1 times [2021-01-26 17:28:51,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:28:51,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36132736] [2021-01-26 17:28:51,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:28:51,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:28:51,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:28:51,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36132736] [2021-01-26 17:28:51,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:28:51,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:28:51,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462548962] [2021-01-26 17:28:51,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:28:51,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:28:51,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:28:51,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:28:51,164 INFO L87 Difference]: Start difference. First operand 20011 states. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:28:51,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:28:51,872 INFO L93 Difference]: Finished difference Result 30987 states and 127139 transitions. [2021-01-26 17:28:51,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:28:51,873 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-01-26 17:28:51,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:28:51,953 INFO L225 Difference]: With dead ends: 30987 [2021-01-26 17:28:51,953 INFO L226 Difference]: Without dead ends: 21803 [2021-01-26 17:28:51,954 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:28:51,954 INFO L78 Accepts]: Start accepts. Automaton has 21803 states. Word has length 51 [2021-01-26 17:28:51,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:28:51,954 INFO L481 AbstractCegarLoop]: Abstraction has 21803 states. [2021-01-26 17:28:51,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:28:51,955 INFO L276 IsEmpty]: Start isEmpty. Operand 21803 states. [2021-01-26 17:28:51,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-01-26 17:28:51,998 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:28:51,999 INFO L504 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] [2021-01-26 17:28:51,999 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-26 17:28:51,999 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:28:51,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:28:52,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1931015558, now seen corresponding path program 1 times [2021-01-26 17:28:52,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:28:52,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179718219] [2021-01-26 17:28:52,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:28:52,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:28:52,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:28:52,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179718219] [2021-01-26 17:28:52,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:28:52,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:28:52,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898297251] [2021-01-26 17:28:52,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:28:52,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:28:52,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:28:52,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:28:52,100 INFO L87 Difference]: Start difference. First operand 21803 states. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2021-01-26 17:28:52,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:28:52,405 INFO L93 Difference]: Finished difference Result 33875 states and 136973 transitions. [2021-01-26 17:28:52,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-26 17:28:52,406 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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 52 [2021-01-26 17:28:52,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:28:52,461 INFO L225 Difference]: With dead ends: 33875 [2021-01-26 17:28:52,462 INFO L226 Difference]: Without dead ends: 20043 [2021-01-26 17:28:52,462 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:28:52,462 INFO L78 Accepts]: Start accepts. Automaton has 20043 states. Word has length 52 [2021-01-26 17:28:52,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:28:52,463 INFO L481 AbstractCegarLoop]: Abstraction has 20043 states. [2021-01-26 17:28:52,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2021-01-26 17:28:52,463 INFO L276 IsEmpty]: Start isEmpty. Operand 20043 states. [2021-01-26 17:28:52,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-01-26 17:28:52,790 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:28:52,791 INFO L504 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] [2021-01-26 17:28:52,797 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-26 17:28:52,797 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:28:52,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:28:52,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1173913022, now seen corresponding path program 2 times [2021-01-26 17:28:52,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:28:52,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255354541] [2021-01-26 17:28:52,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:28:52,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:28:53,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:28:53,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255354541] [2021-01-26 17:28:53,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:28:53,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:28:53,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704301058] [2021-01-26 17:28:53,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:28:53,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:28:53,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:28:53,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:28:53,017 INFO L87 Difference]: Start difference. First operand 20043 states. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2021-01-26 17:28:53,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:28:53,284 INFO L93 Difference]: Finished difference Result 29355 states and 117329 transitions. [2021-01-26 17:28:53,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-26 17:28:53,285 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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 52 [2021-01-26 17:28:53,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:28:53,324 INFO L225 Difference]: With dead ends: 29355 [2021-01-26 17:28:53,325 INFO L226 Difference]: Without dead ends: 16203 [2021-01-26 17:28:53,325 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:28:53,325 INFO L78 Accepts]: Start accepts. Automaton has 16203 states. Word has length 52 [2021-01-26 17:28:53,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:28:53,326 INFO L481 AbstractCegarLoop]: Abstraction has 16203 states. [2021-01-26 17:28:53,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2021-01-26 17:28:53,326 INFO L276 IsEmpty]: Start isEmpty. Operand 16203 states. [2021-01-26 17:28:53,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-01-26 17:28:53,351 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:28:53,351 INFO L504 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] [2021-01-26 17:28:53,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-26 17:28:53,351 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:28:53,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:28:53,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1029243980, now seen corresponding path program 3 times [2021-01-26 17:28:53,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:28:53,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104456669] [2021-01-26 17:28:53,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:28:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:28:53,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:28:53,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104456669] [2021-01-26 17:28:53,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:28:53,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:28:53,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615759932] [2021-01-26 17:28:53,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:28:53,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:28:53,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:28:53,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:28:53,451 INFO L87 Difference]: Start difference. First operand 16203 states. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2021-01-26 17:28:54,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:28:54,059 INFO L93 Difference]: Finished difference Result 25227 states and 98439 transitions. [2021-01-26 17:28:54,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-01-26 17:28:54,063 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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 52 [2021-01-26 17:28:54,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:28:54,109 INFO L225 Difference]: With dead ends: 25227 [2021-01-26 17:28:54,109 INFO L226 Difference]: Without dead ends: 14315 [2021-01-26 17:28:54,110 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2021-01-26 17:28:54,110 INFO L78 Accepts]: Start accepts. Automaton has 14315 states. Word has length 52 [2021-01-26 17:28:54,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:28:54,110 INFO L481 AbstractCegarLoop]: Abstraction has 14315 states. [2021-01-26 17:28:54,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2021-01-26 17:28:54,110 INFO L276 IsEmpty]: Start isEmpty. Operand 14315 states. [2021-01-26 17:28:54,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-01-26 17:28:54,144 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:28:54,145 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 17:28:54,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-26 17:28:54,146 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:28:54,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:28:54,149 INFO L82 PathProgramCache]: Analyzing trace with hash -613264223, now seen corresponding path program 1 times [2021-01-26 17:28:54,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:28:54,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675666144] [2021-01-26 17:28:54,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:28:54,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:28:54,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:28:54,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675666144] [2021-01-26 17:28:54,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:28:54,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:28:54,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999649300] [2021-01-26 17:28:54,297 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:28:54,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:28:54,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:28:54,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:28:54,298 INFO L87 Difference]: Start difference. First operand 14315 states. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:28:54,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:28:54,507 INFO L93 Difference]: Finished difference Result 16910 states and 64911 transitions. [2021-01-26 17:28:54,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:28:54,508 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-01-26 17:28:54,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:28:54,540 INFO L225 Difference]: With dead ends: 16910 [2021-01-26 17:28:54,540 INFO L226 Difference]: Without dead ends: 13710 [2021-01-26 17:28:54,540 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:28:54,540 INFO L78 Accepts]: Start accepts. Automaton has 13710 states. Word has length 53 [2021-01-26 17:28:54,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:28:54,540 INFO L481 AbstractCegarLoop]: Abstraction has 13710 states. [2021-01-26 17:28:54,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:28:54,541 INFO L276 IsEmpty]: Start isEmpty. Operand 13710 states. [2021-01-26 17:28:54,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-26 17:28:54,558 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:28:54,558 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 17:28:54,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-26 17:28:54,558 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:28:54,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:28:54,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1217531091, now seen corresponding path program 1 times [2021-01-26 17:28:54,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:28:54,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346523574] [2021-01-26 17:28:54,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:28:54,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:28:54,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:28:54,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346523574] [2021-01-26 17:28:54,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:28:54,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:28:54,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162372212] [2021-01-26 17:28:54,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:28:54,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:28:54,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:28:54,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:28:54,689 INFO L87 Difference]: Start difference. First operand 13710 states. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:28:54,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:28:54,914 INFO L93 Difference]: Finished difference Result 13530 states and 50861 transitions. [2021-01-26 17:28:54,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:28:54,914 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-01-26 17:28:54,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:28:54,937 INFO L225 Difference]: With dead ends: 13530 [2021-01-26 17:28:54,937 INFO L226 Difference]: Without dead ends: 10590 [2021-01-26 17:28:54,937 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-01-26 17:28:54,938 INFO L78 Accepts]: Start accepts. Automaton has 10590 states. Word has length 54 [2021-01-26 17:28:54,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:28:54,938 INFO L481 AbstractCegarLoop]: Abstraction has 10590 states. [2021-01-26 17:28:54,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:28:54,938 INFO L276 IsEmpty]: Start isEmpty. Operand 10590 states. [2021-01-26 17:28:54,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-01-26 17:28:54,950 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:28:54,950 INFO L504 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] [2021-01-26 17:28:54,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-26 17:28:54,950 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:28:54,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:28:54,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1586012644, now seen corresponding path program 1 times [2021-01-26 17:28:54,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:28:54,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51973912] [2021-01-26 17:28:54,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:28:54,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:28:55,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:28:55,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51973912] [2021-01-26 17:28:55,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:28:55,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-26 17:28:55,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269010763] [2021-01-26 17:28:55,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-26 17:28:55,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:28:55,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-26 17:28:55,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-26 17:28:55,362 INFO L87 Difference]: Start difference. First operand 10590 states. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 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) [2021-01-26 17:28:55,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:28:55,590 INFO L93 Difference]: Finished difference Result 6945 states and 25099 transitions. [2021-01-26 17:28:55,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-26 17:28:55,591 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 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 55 [2021-01-26 17:28:55,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:28:55,606 INFO L225 Difference]: With dead ends: 6945 [2021-01-26 17:28:55,606 INFO L226 Difference]: Without dead ends: 4677 [2021-01-26 17:28:55,606 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-01-26 17:28:55,606 INFO L78 Accepts]: Start accepts. Automaton has 4677 states. Word has length 55 [2021-01-26 17:28:55,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:28:55,607 INFO L481 AbstractCegarLoop]: Abstraction has 4677 states. [2021-01-26 17:28:55,607 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 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) [2021-01-26 17:28:55,607 INFO L276 IsEmpty]: Start isEmpty. Operand 4677 states. [2021-01-26 17:28:55,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-01-26 17:28:55,617 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:28:55,617 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 17:28:55,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-26 17:28:55,617 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:28:55,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:28:55,618 INFO L82 PathProgramCache]: Analyzing trace with hash -289712769, now seen corresponding path program 1 times [2021-01-26 17:28:55,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:28:55,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431585609] [2021-01-26 17:28:55,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:28:55,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:28:55,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:28:55,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431585609] [2021-01-26 17:28:55,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:28:55,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:28:55,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858475783] [2021-01-26 17:28:55,767 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:28:55,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:28:55,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:28:55,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:28:55,770 INFO L87 Difference]: Start difference. First operand 4677 states. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:28:55,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:28:55,921 INFO L93 Difference]: Finished difference Result 5480 states and 19334 transitions. [2021-01-26 17:28:55,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-26 17:28:55,922 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-01-26 17:28:55,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:28:55,936 INFO L225 Difference]: With dead ends: 5480 [2021-01-26 17:28:55,936 INFO L226 Difference]: Without dead ends: 4549 [2021-01-26 17:28:55,937 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:28:55,938 INFO L78 Accepts]: Start accepts. Automaton has 4549 states. Word has length 57 [2021-01-26 17:28:55,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:28:55,941 INFO L481 AbstractCegarLoop]: Abstraction has 4549 states. [2021-01-26 17:28:55,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:28:55,941 INFO L276 IsEmpty]: Start isEmpty. Operand 4549 states. [2021-01-26 17:28:55,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-01-26 17:28:55,956 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:28:55,956 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 17:28:55,956 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-26 17:28:55,957 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:28:55,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:28:55,957 INFO L82 PathProgramCache]: Analyzing trace with hash -237436163, now seen corresponding path program 2 times [2021-01-26 17:28:55,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:28:55,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075727549] [2021-01-26 17:28:55,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:28:55,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:28:56,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:28:56,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075727549] [2021-01-26 17:28:56,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:28:56,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-01-26 17:28:56,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823129538] [2021-01-26 17:28:56,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-26 17:28:56,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:28:56,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-26 17:28:56,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-01-26 17:28:56,131 INFO L87 Difference]: Start difference. First operand 4549 states. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:28:56,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:28:56,301 INFO L93 Difference]: Finished difference Result 2227 states and 7567 transitions. [2021-01-26 17:28:56,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:28:56,301 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-01-26 17:28:56,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:28:56,302 INFO L225 Difference]: With dead ends: 2227 [2021-01-26 17:28:56,302 INFO L226 Difference]: Without dead ends: 0 [2021-01-26 17:28:56,302 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-01-26 17:28:56,302 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 57 [2021-01-26 17:28:56,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:28:56,303 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-26 17:28:56,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:28:56,303 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-26 17:28:56,303 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-26 17:28:56,303 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-01-26 17:28:56,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 05:28:56 BasicIcfg [2021-01-26 17:28:56,309 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-26 17:28:56,315 INFO L168 Benchmark]: Toolchain (without parser) took 21796.21 ms. Allocated memory was 318.8 MB in the beginning and 8.4 GB in the end (delta: 8.1 GB). Free memory was 291.0 MB in the beginning and 7.4 GB in the end (delta: -7.1 GB). Peak memory consumption was 1.0 GB. Max. memory is 16.0 GB. [2021-01-26 17:28:56,316 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 318.8 MB. Free memory is still 289.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-26 17:28:56,316 INFO L168 Benchmark]: CACSL2BoogieTranslator took 629.09 ms. Allocated memory is still 318.8 MB. Free memory was 290.2 MB in the beginning and 259.5 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-01-26 17:28:56,317 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.13 ms. Allocated memory is still 318.8 MB. Free memory was 258.8 MB in the beginning and 257.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:28:56,318 INFO L168 Benchmark]: Boogie Preprocessor took 32.16 ms. Allocated memory is still 318.8 MB. Free memory was 257.4 MB in the beginning and 256.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-26 17:28:56,319 INFO L168 Benchmark]: RCFGBuilder took 476.52 ms. Allocated memory is still 318.8 MB. Free memory was 255.3 MB in the beginning and 230.9 MB in the end (delta: 24.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:28:56,320 INFO L168 Benchmark]: TraceAbstraction took 20591.42 ms. Allocated memory was 318.8 MB in the beginning and 8.4 GB in the end (delta: 8.1 GB). Free memory was 230.2 MB in the beginning and 7.4 GB in the end (delta: -7.2 GB). Peak memory consumption was 954.5 MB. Max. memory is 16.0 GB. [2021-01-26 17:28:56,328 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 318.8 MB. Free memory is still 289.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 629.09 ms. Allocated memory is still 318.8 MB. Free memory was 290.2 MB in the beginning and 259.5 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 48.13 ms. Allocated memory is still 318.8 MB. Free memory was 258.8 MB in the beginning and 257.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.16 ms. Allocated memory is still 318.8 MB. Free memory was 257.4 MB in the beginning and 256.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 476.52 ms. Allocated memory is still 318.8 MB. Free memory was 255.3 MB in the beginning and 230.9 MB in the end (delta: 24.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 20591.42 ms. Allocated memory was 318.8 MB in the beginning and 8.4 GB in the end (delta: 8.1 GB). Free memory was 230.2 MB in the beginning and 7.4 GB in the end (delta: -7.2 GB). Peak memory consumption was 954.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 20.4s, OverallIterations: 13, TraceHistogramMax: 1, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.6s, HoareTripleCheckerStatistics: 1539 SDtfs, 2249 SDslu, 4986 SDs, 0 SdLazy, 507 SolverSat, 106 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54311occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 674 NumberOfCodeBlocks, 674 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 661 ConstructedInterpolants, 0 QuantifiedInterpolants, 88139 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...